tag:blogger.com,1999:blog-369138622024-02-28T09:32:35.513+01:00percomorpha"Humans are not the pinnacle of evolutionary progress but only an aberrant side branch of fish evolution"
Peter B. MoyleFabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.comBlogger202125tag:blogger.com,1999:blog-36913862.post-55531937652650165322021-08-26T21:35:00.003+02:002024-01-02T17:09:31.707+01:00Medaka<div><br /></div><div class="separator" style="clear: both; text-align: center;">
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</div><div><br /></div><div><h1 class="pcs-edit-section-title" data-id="0" style="background: 0px 0px; border: 0px; flex: 1 1 0%; font-family: "Linux Libertine", Georgia, Times, serif; font-size: 1.7em; font-stretch: inherit; font-variant-east-asian: inherit; font-variant-numeric: inherit; font-weight: inherit; letter-spacing: normal; line-height: 1.3; margin: 0px; overflow-wrap: break-word; padding: 0px; vertical-align: baseline; word-break: break-word;"><i> <span style="color: white;">Oryzias latipes</span></i></h1></div><div><i> (Temminck & Schlegel, 1846)</i></div>Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-84550006707818326412015-09-19T23:57:00.001+02:002016-03-18T00:33:13.590+01:00Acquario di Berlino. Ciclidi. Luglio 2015<div style="text-align: center;">
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-90199103856254010862015-09-19T23:38:00.001+02:002016-03-18T00:33:43.104+01:00Acquario di Berlino. Vasca dei carangidi.<div style="text-align: center;">
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-34619681698313971272015-09-12T02:31:00.005+02:002015-09-12T02:31:50.368+02:00Yawning<div class="separator" style="clear: both; text-align: center;">
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: large;"><i>Arapaima gigas</i> (Schinz, 1822)<br />Acquario di Berlino<br />2015</span></td></tr>
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-307573128173122912014-05-28T00:44:00.002+02:002016-03-18T00:28:29.337+01:00Pesci accetta che non lo erano<br />
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Su di una galleria di Repubblica, dedicata alla foto più strane della rete,<a href="http://www.repubblica.it/esteri/2014/05/20/foto/non_photoshop-86655126/1/?ref=HRESS-27#29"> compare la foto qui sopra</a> che ritrae due pesci abissali. Il nome volgare anglofono è Hatchetfish, pesce accetta. I nomi volgari non sono come quelli scientifici, ridondano parecchio e creano confusione. Perché i pesci accetta sono anche questi (che sono piccoli, d'acqua dolce, sudamericani e anche bellini)<br />
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Edit: le foto non sono più disponibili, qui facevo riferimento a delle <i>Carnegiella strigata</i><br />
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E nella didascalia della foto di Repubblica la foto in alto ha il nome della specie in basso. Sono entrambi pesci accetta. E' un errore banale e innocente ma magari qualcuno con molto più tempo di me avrà la voglia di indignarsi (voglia che spesso trovo del tutto ingiustificata ma sempre molto simpatica).<br />
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Questo post quindi andrà avanti analizzando la semiotica del pesce accetta, il ruolo della tassonomia zoologica nelle iniziative editoriali digitali e l'esigenza di scrivere un post sul nulla pur di dare un segnale anti entropico.<br />
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Oppure potrei cercare di fare l'unica cosa saggia: giungere alla verità.<br />
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Che il pesce accetta non esiste.<br />
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-29614416927815246882014-04-26T00:46:00.003+02:002014-04-26T00:46:59.744+02:00Due canali Youtube che un video vale più di mille foto.<br />
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<a href="https://www.youtube.com/channel/UCDIt33wrOT25jwzucibiGUw">Questo è il canale di Ivan Mikolji</a>. Video snorkling nei fiumi e laghi venezuelani. Vedere i pesci in natura ha sempre un fascino incredibile.<br />
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<a href="https://www.youtube.com/user/drunktankaquaria">Questo canale invece è tenuto su da due ragazzi</a> che bevono birra, fumano sigarette, dipingono e parlano dei loro 8 acquari. Hipster e acquari, era solo questione di tempo. I video sono belli, i ragazzi sono simpatici e anche se alcune cose sono discutibili, ecco, a me piacciono molto.<br />
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-11664710357670912672014-03-14T02:12:00.000+01:002014-03-14T23:21:21.819+01:00Labeo Barbus Crossocheilus Puntius Sahyadria, verso l'infinito e oltre, denisonii<div class="separator" style="clear: both; text-align: center;">
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Del vecchio <i>Puntius denisonii</i> ne ho parlato qui, qui e qui (non si cliccano i qui perché non mi andava di ipertestualizzarli, troppo stanco, però lo fanno tutti e rende il post più autorevole anche il solo sapere che si è scritto in precendenza qualcosa che valga la pena rileggere). </div>
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Vabbe' gli hanno cambiato il generico in <i>Sahyadria, </i>il cambiamento prevede pulizia filetica e ricollocazione sistematica di chi nel gruppo centrava poco. Lo specifico rimane lo stesso come anche data di descrizione e descrittore. Insomma sotto le foto, o se volete scrivere una cosa fatta giusta, ora si scrive:</div>
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<span style="font-size: large;"><i>Sahyadria denisonii</i> (Day, 1865)</span></div>
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Fin qui la notizia è vecchia. Se siete del giro la sapete già. Ma se siete del giro e siete pure un pò nerd allora scaricatevi l'articolo da <a href="http://www.threatenedtaxa.org/ZooPrintJournal/2013/November/o367326xi134932-4938.pdf">qui</a> (stavolta funziona) e godetevi 'sta cosa che a me piace tanto e mi ci incastro sempre come se non ci fosse un domani.<br />
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Che poi questo tipo di rappresentazioni dei rapporti tra viventi sembrano fatte per animali a simmetria radiale, tipo i ricci di mare. Secondo me un riccio di mare autocosciente coglierebbe al volo la complessitaà di questo tipo di grafica. Abbiamo mandato sonde fuoi dal sistema solare e facciamo disegni buoni per gli echinodermi.<br />
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: 16px; line-height: 24px; text-align: start;"> <a href="http://threatenedtaxa.org/ZooPrintJournal/2013/November/rajeev_figs.htm">©</a></span><a href="http://threatenedtaxa.org/ZooPrintJournal/2013/November/rajeev_figs.htm"><span lang="EN-GB" style="font-size: 16px; line-height: 24px; text-align: start;"> <span class="SpellE">Raghavan</span></span><span style="font-size: 16px; line-height: 24px; text-align: start;"> et al.</span><span style="font-size: 16px; line-height: 24px; text-align: start;"> </span><span style="font-size: 16px; line-height: 24px; text-align: start;">2013</span></a></td></tr>
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<a href="http://threatenedtaxa.org/ZooPrintJournal/2013/November/rajeev.htm"><span style="color: #a66800; font-family: Tahoma, Lucida Sans Unicode, verdana, geneva, sans-serif;"><span style="background-color: white; font-size: 12px; line-height: 16px;">Raghavan, R., S. Philip, A. Ali, and N. Dahanukar. 2013. </span></span><em style="background-color: white; color: #a66800; font-family: Tahoma, 'Lucida Sans Unicode', verdana, geneva, sans-serif; font-size: 12px; line-height: 16px;">Sahyadria</em><span style="color: #a66800; font-family: Tahoma, Lucida Sans Unicode, verdana, geneva, sans-serif;"><span style="background-color: white; font-size: 12px; line-height: 16px;">, A New Genus Of Barbs (Teleostei: Cyprinidae) From Western Ghats Of India. Journal Of Threatened Taxa 5(15): 4932-4938</span></span></a></div>
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-66848123872436074562014-02-08T14:40:00.000+01:002014-02-08T14:40:55.616+01:00Pseudosphromenus cupanus<br />
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Sir Francis Day,<i> Fauna of British India</i> (Fishes, Volume 1 and 2)</div>
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La scienza vive di un linguaggio tutto suo ma allo stesso tempo universale. E' un linguaggio strano che tutti, in tutto il mondo, possono capire. La riproducibilità prima di tuttto e la prosa dopo tutto il resto. Si introduce la ricerca, si spiegano i materiali e i metodi utilizzati per la riproducibilità universale del lavoro, si illustrano i risultati e se ne traggono le conclusioni. Capita anche che la scienza scriva cose che gli acquariofili scrivono sulle riviste acquariofile da almeno 50 anni. Fa strano quindi leggere un articolo scientifico sul comportamento riproduttivo di una specie tropicale ornamentale. L'approccio è diverso ma i risultati tutto sommato sono gli stessi. </div>
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<a href="http://ijpaz.com/index.php/ijpaz/article/view/90/pdf">Qui potete scaricare e leggere un articolo sulla riproduzione di Pseudosphromenus cupanus</a>, un anabantoide asiatico non particolarmente bello e diffuso in commercio ma che è facile da riprodurre e che mostra il canone riproduttivo dei costruttori di nidi di bolle. </div>
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-20656746914808857512013-12-20T23:54:00.000+01:002014-02-08T00:23:43.656+01:00Copella arnoldi<div class="separator" style="clear: both; text-align: center;">
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<i style="font-size: medium;">Copella arnoldi </i><span style="font-size: small;">(Regan, 1912)</span></td></tr>
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<span style="font-size: small;">A volte capita ancora di fare cose divertenti. Capita anche di avere una vasca a disposizione che per come e` stata concepita proprio non funziona. E allora si abbassa il livello dell acqua si mette una bella radice semiemersa e ci si incastrano tre specie vegetali idonee a fare tutto da sole¹. Poi, se in mezzo agli ordini settimanali di routine, si riesce a mettere una specie a cui si e guardato con interesse per anni ma che non si è mai avuta occasione di prendere, allora la cosa si fa interessante. Si fa interessante perche' quell' <i>Anubias barteri</i> dalle foglie cosi grandi pare proprio fatta apposta per dei pesci che depongono fuori dall'acqua. <i>Copella arnoldi</i> non e' l'unica specie che lo fa ma e l'unica che lo fa in maniera cosi interessante. I maschi sono il doppio delle femmine e sono dei bulli. Girano veloci, minacciano gl altri maschi, corteggiano le femmine, controllano il territorio e spesso fanno tutte queste cose contemporaneamente. </span><span style="font-size: small;">Il bello e' il momento dell' accoppiamento e quindi metto un video che spiega bene la cosa.</span></div>
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<span style="font-family: inherit; font-size: small;">Deporre fuori dall' acqua e un vantaggio evolutivo cosi grande? Forse vista la diffusione in natura di questa soluzione non sembrerebbe. Eppure la complessita' delle cure parentali fa supporre quella lunga pazienza cieca necessaria ad affrontare cure cosi elaborate e particolari; senza contare che a farle non e' un ciclide o un altra specie appartenente ad un gruppo con strategie riproduttive moderne. Coordinare il salto, deporre e fecondare in apnea, tornare giu'. Sembra facile ma non lo e' come non e' facile per i maschi sostare sotto le uova adese lassu', in quel mondo cosi' diverso, e ogni tanto dare un colpetto di coda per tenere umida la covata. Il tutto con la necessita' sempre cosi forte di fare il bullo, di dare qualche colpo ai maschi rivali o accoppiarsi di nuovo con qualche altra femmina (un maschio teneva d'occhio due covate prodotte da due femmine diverse su foglie vicine).</span></div>
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;">particolari di un paio di covate</span></td></tr>
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<span style="font-family: inherit;">La natura non e' perfezione e quindi e' facile vedere tentativi andati a vuoto, allineamenti sbagliati nel salto, foglie troppo fragili per ospitare la coppia². Capita anche di vedere il maschio che salta con due femmine con il solo risultato di produrre un'orgia verticale fallimentare. Gli "splash tetra" sono generosi da un punto di vista comportamentale, mai timidi, robusti e permissivi in fatto di acqua e cibo. L' unica cosa di cui non possono fare a meno e un superficie a un decina di centimentri dall' acqua perche' per mettere in scena lo spettacolo serve un palcoscenico. Purtroppo il gruppo che ho vive in una vasca espositiva a lavoro quindi non ho mai avuto il tempo e la possiblita' di tirare su gli avannotti, ma credo che del muschio posto in modo strategico possa risolvere alcuni dei problemi legaati alle ridottissime dimensioni delle larve e degli avannotti. I lebiasinidi non sono molto diffusi in italia ed è un peccato perché costano poco, sono robusti e con comportamenti unici. </span></div>
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<span style="font-family: inherit;">¹Le piante sono<i> Anubias barteri </i>var.<i> barteri</i>, <i>Microsorum pteropus</i> e <i>Hydrocotyle leucocephala</i>. Le ho incastrate semplicementre tra i rami di una radice abbastanza intricata lasciandole libere di crescere. La cosa importante e' assicurare una umidita' elevata nella zona emersa garantendo allo stesso tempo una corretta ventilazione. Purtroppo queste due ultime condizioni sono difficili da ottenere perche' nessuno degli acquari e dei terrari in commercio e' adatto ricreare queste condizioni. L'unica e' fare delle prove e delle modifiche alle vasche a disposizion</span>e.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXT9uFsBLJd1qJ8R8xOUIlvn7dZ56azggZOy_M5NeephqErzONDnm8_rTGMjbL_9o8-wVxvNjlqMb06L0FX1CnRTXz7QPYmPandWrP72M8GLkpQOidjHHNttXtgVZgDVh9y9jG/s1600/collage.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXT9uFsBLJd1qJ8R8xOUIlvn7dZ56azggZOy_M5NeephqErzONDnm8_rTGMjbL_9o8-wVxvNjlqMb06L0FX1CnRTXz7QPYmPandWrP72M8GLkpQOidjHHNttXtgVZgDVh9y9jG/s640/collage.jpg" height="640" width="428" /></a></div>
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<span style="font-size: small;">²Qui ci sarebbe una cosa interessante da dire in merito alla diffrazione della luce attraverso l'acqua e la capacità che hanno i pesci di vedere fuori dalla stessa compensando la distorsione. </span><br />
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</span>Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com2tag:blogger.com,1999:blog-36913862.post-90495882878523428862013-12-13T00:44:00.000+01:002013-12-13T11:18:42.301+01:00Ontogenesi e Filogenesi<br />
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<tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-xJqIjTYXgpE/Uqo9AIp_DMI/AAAAAAAAD4E/F-32WXaOvxw/s1600/P_anguinus-head1.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://2.bp.blogspot.com/-xJqIjTYXgpE/Uqo9AIp_DMI/AAAAAAAAD4E/F-32WXaOvxw/s1600/P_anguinus-head1.jpg" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i><span style="font-size: small;">Proteus anguinus Laurenti, 1768</span></i><br /><a href="http://commons.wikimedia.org/wiki/File:P_anguinus-head1.jpg">Wikipedia</a><br /></td></tr>
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<i>I dati classici sull' eterocronia sono stati ampiamente ignorati e considerati superati. Ma credo che questi abbiano un ruolo centrale da giocare nella discussione, sempre più attuale, sul significato evolutivo dei cambiamenti nella regolazione genica. La mia previsione è che questo dibattito costituirà il tema principale della biologia evolutiva per il decennio a venire. Credo anche che la comprensione della regolazione costituisca il perno per riavvicinare la biologia molecolare alla biologia evolutiva; poiché una sintesi delle due biologie avverrà senz' altro, se mai avverrà, sul terreno comune dello sviluppo.</i></blockquote>
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Ontogenesi e Filogenesi </div>
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Stephen J. Gould</div>
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1977</div>
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Testo specifico che parte da lontano (spoiler: l'ontogenesi non ricapitola la filogenesi) e arriva, per quelle che erano le conoscenze dell'epoca, al ruolo dell'eterocronia nei processi macroevolutivi, anticipando parecchio la biologia evolutiva dello sviluppo per come la conosciamo oggi. Si staglia sullo sfondo il solito paesaggio storico ricco delle dispute ottocentesche che tanto gli piacevano. Gould come al solito porge al lettore l'oggetto del suo interesse descrivendone minuziosamente i dettagli. Non risparmia l'analisi statistica dei dati (non deve, è un testo rivolto a biologi e naturalisti) ma allo stesso tempo la prosa è già quella che lo avrebbe reso famoso con i suoi saggi divulgativi. Non è un dovere leggerlo se volete farvi un'idea sulla questione (nel campo dello sviluppo il libro è davvero troppo vecchio) ma allo stesso tempo è un pietra miliare per quanto riguarda uno dei metodi migliori per affrontare e raccontare le cose dell'evoluzione. Il metodo di Gould. </div>
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-14117143100099445172013-09-22T22:01:00.000+02:002013-09-22T22:01:22.169+02:00Nuove specializzazioni cartacee<br />
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<a href="http://www.parobuch.de/web/sample-page/">Juwelen des Urwalds in der Natur und im Aquarium</a></div>
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<a href="http://www.parobuch.de/web/sample-page/">Peter finke e Martin Hallmann</a></div>
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-family: inherit; font-size: small;"><a href="http://www.cichlidpress.com/">Tropheus in their natural habitatAd Konings</a></span></td></tr>
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-62485466682102052092013-08-19T00:17:00.001+02:002013-09-16T13:06:17.498+02:00Un riccio nella tempesta<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhyphenhyphenuxioFzJ04YC7Vmkcs1irCixQbyfXl-em7xIjGJANxFcqzHXldcBxNGb69l9jiGJkpnf9hPctF3wxLykep2HsXvg-vgF0-fMsCLnGAwEc4fort9ucuHJHp9RkVjs-pPx1sDf/s1600/IMG_20130818_095040.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhyphenhyphenuxioFzJ04YC7Vmkcs1irCixQbyfXl-em7xIjGJANxFcqzHXldcBxNGb69l9jiGJkpnf9hPctF3wxLykep2HsXvg-vgF0-fMsCLnGAwEc4fort9ucuHJHp9RkVjs-pPx1sDf/s320/IMG_20130818_095040.jpg" width="240" /></a></div>
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Leggere Gould. Cosi, come cosa buona a prescindere. Come atto dovuto. Come Manzoni e Pascoli a scuola. Era introvabile e lo hanno rimesso in giro. C'e' sempre quella cosa del prezzo fuori dal mondo che non capiro' mai. <a href="http://pwd.noblogs.org/perche-gould-ce-laveva-con-dawkins-wilson-rifkin-e-capra/">Questa recensione</a> mi è piaciuta molto.<br />
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com1tag:blogger.com,1999:blog-36913862.post-9331330782042565862013-07-06T23:49:00.003+02:002013-07-06T23:49:58.891+02:00Adelante, Pedro, con juicio<div>
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<span style="font-size: large;"><a href="http://www.ingentaconnect.com/content/bsc/jfd/2013/00000036/00000006/art00001">Imported ornamental fish are colonized with antibiotic-resistant bacteria</a></span></div>
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<tr><td class="tr-caption" style="font-size: 13px;"><a href="http://commons.wikimedia.org/wiki/File:Velvet_infection.JPG">By Mydigitalife via Wikimedia Commons</a></td></tr>
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<i>Betta splendens</i> infestato da <i>Oodinium</i><i> </i>sp.</div>
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There has been growing concern about the overuse of antibiotics in the ornamental fish industry and its possible effect on the increasing drug resistance in both commensal and pathogenic organisms in these fish. The aim of this study was to carry out an assessment of the diversity of bacteria, including pathogens, in ornamental fish species imported into North America and to assess their antibiotic resistance. Kidney samples were collected from 32 freshwater ornamental fish of various species, which arrived to an importing facility in Portland, Oregon from Colombia, Singapore and Florida. Sixty-four unique bacterial colonies were isolated and identified by PCR using bacterial 16S primers and DNA sequencing. Multiple isolates were identified as bacteria with potential to cause disease in both fish and humans. The antibiotic resistance profile of each isolate was performed for nine different antibiotics. Among them, cefotaxime (16% resistance among isolates) was the antibiotic associated with more activity, while the least active was tetracycline (77% resistant). Knowing information about the diversity of bacteria in imported ornamental fish, as well as the resistance profiles for the bacteria will be useful in more effectively treating clinical infected fish, and also potential zoonoses in the future.</div>
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<span style="font-size: large;"><a href="http://www.sciencedirect.com/science/article/pii/S0006320713001225">Uncovering an obscure trade: Threatened freshwater fishes and the aquarium pet markets.</a></span></div>
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<span style="font-size: xx-small;"><a href="http://commons.wikimedia.org/wiki/File:Botia_striata.jpg">By Lerdsuwa via Wikimedia Commons</a></span></div>
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<i>Botia striata</i> Narayan Rao, 1920</div>
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While the collection of fish for the aquarium pet trade has been flagged as a major threat to wild populations, this link is tenuous for the unregulated wild collection of endemic species because of the lack of quantitative data. In this paper, we examine the extent and magnitude of collection and trade of endemic and threatened freshwater fishes from India for the pet markets, and discuss their conservation implications. Using data on aquarium fishes exported from India, we try to understand nature of the trade in terms of species composition, volume, exit points, and importing countries. Most trade in India is carried out under a generic label of “live aquarium fish”; yet despite this fact, we extracted export data for at least thirty endemic species that are listed as threatened in the IUCN Red List. Of the 1.5 million individual threatened freshwater fish exported, the major share was contributed by three species; Botia striata (Endangered), Carinotetraodon travancoricus(Vulnerable) and the Red Lined Torpedo Barbs (a species complex primarily consisting of Puntius denisonii and Puntius chalakkudiensis, both ‘Endangered’). Using the endangered Red Lined Torpedo Barbs as a case study, we demonstrate how existing local regulations on aquarium fish collections and trade are poorly enforced, and are of little conservation value. In spite of the fact that several threatened and conservation concern species are routinely exported, India has yet to frame national legislation on freshwater aquarium trade. Our analysis of the trade in wild caught freshwater fishes from two global biodiversity hotspots provides a first assessment of the trade in endangered and threatened species. We suggest that the unmanaged collections of these endemic species could be a much more severe threat to freshwater biodiversity than hitherto recognized, and present realistic options for management.</div>
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-30157062577430241962012-10-19T09:52:00.000+02:002012-10-19T22:33:07.113+02:00Pesci ai raggi X<div class="separator" style="clear: both; text-align: center;">
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<span style="text-align: -webkit-auto;">Probabilmente le avete già viste in rete qualche tempo fa e, a meno che non siate negli Stati Uniti per qualche motivo, la notizia è di scarsa utilità (ma la mostra gira gli USA fino al 2015). Le foto sono però troppo belle per farle passare inosservate. Metto quindi quella che mi piace di più, con un fatterello anatomico che mi ha sempre affascinato, e vi rimando ai link istituzionali di questa mostra itinerante organizzata dal museo Smithsonian.</span></div>
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Cliccando la foto in basso invece si accede al photostream Flickr ufficiale.</div>
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<tr><td class="tr-caption" style="text-align: center;"><i>Gasteropelecus maculatus</i>. Credit Sandra J. Raredon, Division of Fishes, NMNH</td></tr>
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<span style="font-weight: normal;"><span style="font-size: small;"><i>G. maculatus</i> è forse il più caratteristico tra i pesci "accetta" e la foto rende bene lo sviluppo anatomico che caratteriza questi piccoli caraciformi della famiglia Gasteropelecidae (</span></span>dal greco <i>gaste</i>r, stomaco e <i>pelekis, </i>ascia). La loro forma peculiare è data dall'aumento delle dimensioni delle ossa coracoidi del cinto pettorale sulle quali vanno ad inserirsi i muscoli delle pettorali. Questa struttura, ossa più muscoli, può arrivare al 25% del peso dell'esemplare e serve a produrre la spinta necessaria a sfuggire i predatori; battendo con le ampie pinne pettorali sulla superficie dell'acqua infatti, un esemplare è in grado di compiere un balzo che può arrivare ad essere lungo anche 30 volte la lunghezza del suo corpo. E' un pò come se un atleta di salto in lungo, alto un metro e ottanta, saltasse 54 metri!</div>
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-70508235425331119182012-10-12T10:33:00.003+02:002012-10-12T10:33:55.200+02:00I pesci del barone Cuvier<div class="separator" style="clear: both; text-align: center;">
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<a href="http://2.bp.blogspot.com/-EkOJCxDh2_k/UHfD6Gu0coI/AAAAAAAACi4/_OCgxL_UUwI/s1600/199662.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://2.bp.blogspot.com/-EkOJCxDh2_k/UHfD6Gu0coI/AAAAAAAACi4/_OCgxL_UUwI/s320/199662.jpg" width="207" /></a></div>
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La storia della scienza è fatta di vincitori e vinti. Ma più che le persone a gareggiare sono le idee, che hanno vita più lunga delle prime e che sono sottoposte al giudizio insindacabile del tempo. Ma a noi viene meglio giudicare l'operato delle personalità che hanno fatto la storia della scienza e la nostra umana propensione a puntare l'arbitrario dito del senno di poi ci permette di stilare classifiche trancianti.</div>
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Rimaniamo affascinati quindi da quelli che pensiamo essere i grandi perdenti della storia. Lamarck, Buffon e Cuvier hanno perso contro Darwin e Wallace. Come se fosse una gara asettica di forza intellettuale. Ovviamente non è così. Le idee selezioniste dei due inglesi hanno prevalso sulla scuola post-illuminsta francese, è vero, ma l'operato di uno scienziato non si esaurisce con l'analisi di uno singolo aspetto della sua carriera, come non si giudica l'opera di uno scrittore considerando solo il suo romanzo più brutto. </div>
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Cambridge University Press ha intrapreso l'ammirevole impresa di pubblicare in anastatica, della versione inglese, l'opera più famosa del<a href="http://en.wikipedia.org/wiki/Cuvier_(taxonomy)"> barone Cuvier</a>: Le Règne animal distribuè d'après son organisation. Il decimo volume è dedicato ai Pesci e <a href="http://www.cambridge.org/it/knowledge/isbn/item6839701/?site_locale=it_IT">qui trovate la scheda della casa editrice</a>. </div>
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Padre dell'anatomia comparata e della paleontologia, geologo, non evoluzionista preDarwiniano, catastrofista e con un discreto potere politico-intellettuale nella Francia di allora, Cuvier è stato considerato per molto tempo il più grande perdente della storia della biologia postDarwiniana. Per molti aspetti ha ricevuto più biasimo anche di Lamarck. Ma il tempo ha reso giustizia ad entrambi e ora ognuno di essi gode di una più corretta collocazione di merito. </div>
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Tornando al libro. Se una copia anastatica di un opera del genere fa gola a tutti i cultori della materia non è possibile ignorare le potenzialità dell'epoca in cui viviamo e quindi vi rimando alla digitalizzazione della stessa disponibile su GoogleBooks: <a href="http://books.google.it/books/reader?id=AlA9AAAAYAAJ&hl=it&printsec=frontcover&output=reader&pg=GBS.PR3">The Class Pisces</a></div>
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Sempre di Cuvier potete trovare l'opera completamente dedicata all'ittiologia, in 11 volumi (terminata dallo scienziato Achille Valenciennes dopo la morte del barone). </div>
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<a href="http://books.google.it/books?id=Hd4TAAAAQAAJ&dq=Histoire+naturelle+des+poissons&hl=it&source=gbs_navlinks_s">Histoire naturelle des poissons, 1828-1848</a></div>
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-88671013606099949012012-10-01T11:28:00.000+02:002012-10-01T11:37:29.553+02:00Consuntivo Tassonomico Periodico (CTP)<br />
JoTT Western Ghats Special Series (open):<br />
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<a href="http://threatenedtaxa.org/ZooPrintJournal/2012/September/o312926ix123038-3049.pdf">Balitora laticauda, a new species of stone loach from Krishna River, northern Western Ghats, India.</a><br />
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<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: small;"><i>Balitora laticauda</i> sp. nov</span>.<br />
<span style="background-color: white; color: #444444; font-family: Tahoma, 'Lucida Sans Unicode', verdana, geneva, sans-serif; font-size: 12px; line-height: 14px; text-align: -webkit-auto;">Sunil Bhoite, Shrikant Jadhav & Neelesh Dahanukar</span></td></tr>
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<a href="http://www.ufrgs.br/ni/">Neotropical Ichthyology, terzo numero del decimo volume</a> (open).<br />
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<a href="http://www.asihcopeiaonline.org/toc/cope/2012/3">Copeia, terzo numero dell' anno 2012</a> (abstract)<br />
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Journal of applied ichthyology (abstract):<br />
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<a href="http://onlinelibrary.wiley.com/doi/10.1111/jai.12028/abstract;jsessionid=057DD15E432731D1F455AE2674340DF0.d02t04">The genus Gymnotus in Argentina. How bad taxonomy results in poor regulations and no conservation.</a><br />
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<a href="http://onlinelibrary.wiley.com/doi/.1111/jai.12013/abstract"> Reproduction of the annual fish Austrolebias nigrofasciatus maintained at different temperatures.</a><br />
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<a href="http://onlinelibrary.wiley.com/doi/10.1111/jai.12010/abstract"> Colour intensity in angelfish (Pterophyllum scalare) as influenced by dietary microalgae addition.</a><br />
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-40013433654380896532012-08-17T08:30:00.000+02:002012-09-25T00:49:43.803+02:00Lago di Fogliano<br />
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<span style="font-family: inherit; font-size: small;">Le bonifiche di epoca fascista che hanno portato l'Agro Pontino ad essere come lo conosciamo oggi hanno permesso la formazione di diverse lagune salmastre. La più grande, il <a href="http://it.wikipedia.org/wiki/Lago_di_Fogliano">lago di Fogliano,</a> si trova a ridosso della spiaggia libera di Foce Verde, in provincia di Latina. Un posto tranquillo e non troppo affollato dove l'ecosistema a dune è ancora ben conservato. Gli <a href="http://www.puntaderci.it/l-ambiente-dunale.html">ambienti dunali</a> anche se meno biodiversificati rispetto ad ambienti più permissivi, sono fondamentali per l'azione di contrasto che svolgono nei confronti dell'erosione dei litorali. Personalmente li trovo estremamente affascinanti e trovare delle dune ben conservate, in un luogo di villeggiatura poi, è un gioia per gli occhi.</span></div>
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<tr><td class="tr-caption" style="text-align: center;">Promontorio del Circeo sullo sfondo.</td></tr>
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Attraversata la strada litoranea, ad un centinaio di metri di distanza dalla spiaggia, ecco il lago salmastro di Fogliano.<br />
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<tr><td class="tr-caption" style="text-align: center;"><i>Carcinus aestuarii </i>(?)</td></tr>
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<tr><td class="tr-caption" style="text-align: center;"><i>Cerastoderma galucum</i></td></tr>
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<tr><td class="tr-caption" style="text-align: center;"><i>Aphanius fasciatus</i></td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Macroalga marina mop naturale di <i>A. fasciatus</i>?</td></tr>
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<tr><td class="tr-caption" style="text-align: center;">Isopodi (Cymothoidae) parassiti presenti su alcuni pesci pescati.<br />
<i>Anilocra</i> sp.?</td><td class="tr-caption" style="text-align: center;"><br /></td></tr>
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com10tag:blogger.com,1999:blog-36913862.post-43823238775198422222012-08-16T08:30:00.000+02:002012-09-25T00:50:15.500+02:00Lago di Giulianello<div style="text-align: justify;">
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<a href="http://it.wikipedia.org/wiki/Lago_di_Giulianello">Giulianello</a> è un piccolo lago vulcanico nel territorio posto tra Colli Albani e i Monti Lepini, a sud di Roma. Si raggiunge facilmente da Velletri o da Cori e una volta lasciata la strada asfaltata uno sterrato fortemente compromesso rende difficile l'accesso alla autovetture convenzionali (meglio un fuoristrada o a piedi). Vista le difficoltà ad arrivare sulle sue rive non stupisce la tranquillità del luogo. Foto di rito e qualche raccolta con guadino. Purtroppo solo specie alloctone come: <a href="http://it.wikipedia.org/wiki/Lepomis_gibbosus"><i>Lepomis gibbousus</i></a>, <a href="http://it.wikipedia.org/wiki/Gambusia_affinis"><i>Gambusia affinis</i></a> e <a href="http://it.wikipedia.org/wiki/Procambarus_clarkii"><i>Procambarus clarkii</i></a>.</div>
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-25938579906273942512012-07-22T00:09:00.000+02:002012-10-03T23:29:17.407+02:00Piccolo, e breve, ritorno alle origini.<div class="separator" style="clear: both; text-align: center;">
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Qui una volta era tutta "ittiologia domestica". Ora non lo è più ma ogni tanto qualcosa si riesce ancora a fare¹. Una manciata di pesci matita e una specie di Apistogramma che ho inseguito per anni. </div>
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Poi, se la cosa procede, vi dico come è andata.</div>
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<span style="font-size: x-small;">¹ Foto prese con il telefono</span></div>
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Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com4tag:blogger.com,1999:blog-36913862.post-48251525227901214112012-07-17T03:16:00.001+02:002012-07-17T03:16:44.007+02:00il bosone di Carlo e Alfredo.<br />
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In facoltà girava la storiella, ma forse la conoscete già, che gli unici in grado di parlare con Dio sono i matematici e che gli unici che riescono a parlare con i matematici sono i fisici. Poi la storiella degenerava nella solita chiusura denigratoria nei confronti di medici e ingegneri (o erano i filosofi o forse era tutta li e le storielle denigratorie erano altre). Vabbè ora la sapete anche voi e la collegate ai fatti di Ginevra come meglio vi aggrada. </div>
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L'unico commento intelligente (?) a tutta la storia dei bosoni che mi è venuto è che noi il nostro bosone l'abbiamo descritto 153 anni fa per mezzo di uno sperimentale (Carlo) e un teorico (Alfredo), e lì per lì tutto 'sto clamore non c'era mica stato. </div>
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-56189368337376554872012-07-09T02:14:00.001+02:002012-07-16T02:02:58.451+02:00Letture di luglio<br />
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<a href="http://africhthy.org/"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7Krn59X0JH7B5VsStGev2dBnxcGsDcF-dMh9-OMCtTdJ4dPeVU-gLjnjsX1MA9DvT_E16y-qK1Cc-0mrcntOKmsEzy5O4T9JtFCJkfqaMUAT8ttm8JPkPUUdfkTYacqrB0iTg/s320/Congo%2520Fishes.jpg" width="320" /></a></div>
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<a href="http://africhthy.org/">Africhthys</a></div>
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Nuovo portale bilingue dedicato all'ittiologia del continente nero. Ottima risorsa che promette bene.</div>
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<tr><td class="tr-caption" style="text-align: center;">Hubert Ludwig, 1891</td></tr>
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Una nuova Laetacara, una nuova Apistogramma e un nuovo pesce gatto. Forse il più interessante è però quello di Costa sull'analisi comparata dello scheletro caudale dei killi vivi e estinti. Trovate tutto sull'ultimo numero di <a href="http://www.vertebrate-zoology.de/vz62-2/Vertebrate_Zoology_62-2_Contents.pdf">Vertebrate Zoology 62(2)</a></div>
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<tr><td class="tr-caption" style="text-align: center;"><i>Bunocephalus coracoideus</i> (Cope, 1874)<br />
Beiträge zur Kenntniss der Flussfische Südamerika's (1879)<b><br /></b></td></tr>
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Fresco di stampa digitale anche il <a href="http://www.scielo.br/scielo.php?script=sci_issuetoc&pid=1679-622520120002&lng=en&nrm=iso">secondo numero di Neotropical ichthyology</a> 10(2)<br />
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<tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/--ZIEgmVW4Gg/UANXF-8YXiI/AAAAAAAACGo/KF-9OWM6mMs/s1600/Piskorek.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="241" src="http://1.bp.blogspot.com/--ZIEgmVW4Gg/UANXF-8YXiI/AAAAAAAACGo/KF-9OWM6mMs/s320/Piskorek.jpg" width="320" /></a></td></tr>
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<i> <span style="font-size: small;">Pangio khulii</span></i><span style="font-size: small;"> (Valenciennes, 1846) </span></div>
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(By Kamikaadze (Own work) [CC-BY-SA-3.0 ]</div>
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<a href="http://www.pfeil-verlag.de/04biol/e9902d23.php">Ichthyological exploration of freshwater 23(1)</a> con due articoli liberamente consultabili.<br />
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<tr><td class="tr-caption" style="text-align: center;">By Jimmyg2k (Own work) [CC-BY-SA-3.0 ]</td></tr>
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Ancora Western Ghats, la regione indiana hotspot della biodiversità: <a href="http://threatenedtaxa.org/ZooPrintJournal/2012/June/o279626vi122644-2652.pdf">Freshwater fish fauna of Krishna River at Wai, northern Western Ghats, India</a><br />
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<tr><td class="tr-caption" style="text-align: center;"> Pieter Bleeker (1819–1878) (Drawing from the original description 1855) </td></tr>
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Quanti <i>Barbus tetrazona </i>esistono? A parte il fatto che non si chiama più cosi, direi che l'habitus è piuttosto ridondante, e comunque tanto per rendere semplici la cose eccone uno davvero molto simile appena descritto: <a href="http://rmbr.nus.edu.sg/rbz/biblio/s25/s25rbz285-289.pdf">Systomus navjotsodhii, a new cyprinid fish from Central Kalimantan, Borneo.</a><br />
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Pesci marini che fanno a capocciate: <a href="http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0038120">Extraordinary Aggressive Behavior from the Giant Coral Reef Fish, <i>Bolbometopon muricatum</i>, in a Remote Marine Reserve. PLoS-ONE 7(6)</a><br />
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<br /></div>Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com4tag:blogger.com,1999:blog-36913862.post-76708584409599811822012-06-13T00:20:00.000+02:002012-06-13T00:37:11.789+02:00Ichthyologiae Archipelagi Indici Prodromus.<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhPB6kgeWVTombSyQXI-pd8FCouJQbZrsjYuWzDqhXnPa6ikmuH2xKXCb0jqgUboi-VcTIasnIyJM_xv5hSQ-AgiQA2W-xEUIxnp_NDYaMymI021moE-h0yDS2rK3mBe40a6ok/s1600/Puntius_rhomboocellatus_KOUMANS.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="204" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhPB6kgeWVTombSyQXI-pd8FCouJQbZrsjYuWzDqhXnPa6ikmuH2xKXCb0jqgUboi-VcTIasnIyJM_xv5hSQ-AgiQA2W-xEUIxnp_NDYaMymI021moE-h0yDS2rK3mBe40a6ok/s320/Puntius_rhomboocellatus_KOUMANS.jpg" width="320" /></a></td></tr>
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<span style="font-size: x-small;"><span class="sciname" style="font-style: italic;">Puntius rhomboocellatus</span> <span class="sheader6"> Koumans, 1940</span></span></h1>
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Nel 1860 Pieter Bleeker, ittiologo olandese, pubblica il secondo volume dell'opera in oggetto (il primo era sui siluriformi), che ha per interesse l'ordine dei "Cyprini" (somma non filetica dei due ordini Cipriniformi e Ciprinodotiformi). Oggi a distanza di un bel po' di tempo qualcuno ha tradotto l'opera, che in origine era in latino tecnico e olandese, mantenendo le illustrazioni originali.<br />
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Ve lo scaricate da qui: <a href="http://www.zoologischemededelingen.nl/cgi/t/text/get-pdf?c=zoomed;idno=8601a01">An illustrated translation of Bleeker's Fishes of the indian Archipelago Part II Cyprini</a><br />
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<br />Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0tag:blogger.com,1999:blog-36913862.post-81282324660098741292012-05-24T02:19:00.001+02:002012-06-02T21:19:06.586+02:00Sogliole<div style="text-align: center;">
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Preso da <a href="http://blennywatcher.com/2012/05/07/mimicry-the-sole-and-the-flatworm/">Blennywatcher</a>.</div>
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Le sogliole si sono appiattite dalla parte sbagliata, si nascondono bene sotto la sabbia e ... si fingono tossiche. La specie dovrebbe essere <a href="http://www.springerlink.com/content/wem7um08ttdwucvu/"><i>Soleichthys maculosus</i> (Muchhala & Munroe, 2004)</a> e, come scrivono sul sito che ho linkato sotto il video, ancora non sono sicuri quale sia il platelminta mimato.</div>
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<i>addendum</i><br />
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Ricordavo anche un altro caso di mimetismo tra pesci e platelminti e quindi sono andato a controllare. E infatti:<br />
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<a href="http://1.bp.blogspot.com/-iQuXBW6pLLY/T8VXkFsqyiI/AAAAAAAACFU/XkodyXfzyH8/s1600/IB2-015++juvenile+Pinnate+batfish,+Platax+pinnatus.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://1.bp.blogspot.com/-iQuXBW6pLLY/T8VXkFsqyiI/AAAAAAAACFU/XkodyXfzyH8/s320/IB2-015++juvenile+Pinnate+batfish,+Platax+pinnatus.jpg" width="213" /></a></div>
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<i> Platax pinnatus</i> (Linneo, 1758) </div>
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<a href="http://2.bp.blogspot.com/-LP6VXTfjZf4/T8VYL94Wn-I/AAAAAAAACFc/rV8GQuRX5fQ/s1600/TG_159_23.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://2.bp.blogspot.com/-LP6VXTfjZf4/T8VYL94Wn-I/AAAAAAAACFc/rV8GQuRX5fQ/s320/TG_159_23.jpg" /></a></div>
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<i>Pseudobiceros hancockanus </i>(Collingwood, 1876)</div>
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Il pesce è in livrea giovanile e da adulto cambia completamente aspetto (<a href="http://www.ozanimals.com/Fish/Longfin-Batfish/Platax/pinnatus.html">così</a>). Se volete approfondire i casi di mimetismo nei pesci marini, che la letteratura è enorme, non avete che da iniziare con questo articolo (è una review, ovviamente) del sempre ottimo John Randall. Lo scaricate gratuitamente <a href="http://www.sinica.edu.tw/zool/zoolstud/44.3/299.pdf">qui</a>. </div>
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</div>Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com2tag:blogger.com,1999:blog-36913862.post-45520085207630484772012-05-08T23:30:00.000+02:002012-05-08T23:30:52.117+02:00Riproduzione sperimentale delle cagnette<br />
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBqWpx0-Qiz7XVjv_kZnx-1biOX1Y5PdwSaABSIGV4Ac-1v__1PmfNkVyrJgmi9NzoZpIdkDoYrgcZjfjjK-Q-PaNVTT41E4xgEq40BtRv3XfW_b6qTct_bP-vSg630YJBxfPy/s1600/cagnetta.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="212" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBqWpx0-Qiz7XVjv_kZnx-1biOX1Y5PdwSaABSIGV4Ac-1v__1PmfNkVyrJgmi9NzoZpIdkDoYrgcZjfjjK-Q-PaNVTT41E4xgEq40BtRv3XfW_b6qTct_bP-vSg630YJBxfPy/s320/cagnetta.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><i style="font-size: medium;">Salaria fluviatilis </i><span style="font-size: small;">Asso, 1801</span><br />
<span style="font-size: x-small;"><a href="http://www.flickr.com/photos/61626776@N03/">©Giacomo Radi</a></span></td></tr>
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Se volete cimentarvi nella riproduzione di un blennide d'acqua dolce ma non sapete da dove iniziare ora avete a disposizione un bel protocollo scientifico. Lo stampo non è quello delle riviste acquariofile, sia chiaro, il tono è asettico e pratico (come deve essere), ma come sempre l'articolo e pieno di nozioni fondamentali per approcciare il tema della riproduzione in cattività di specie ostiche in tal senso. Insomma secondo me sono sempre molto interessanti e vale la pena dargli un' occhiata.</div>
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Trovate tutte le informazioni in questo articolo liberamente consultabile <a href="http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB4QFjAA&url=http%3A%2F%2Fwww.ispa.pt%2Fui%2Fuie%2Fpdf%2FGiletal_JWAS_2010.pdf&ei=lFaiT5ShGbT04QSWkuXPCA&usg=AFQjCNHivI-SmzpnXI6lWVZvWUY4a9HmAA&sig2=QbLXcHlC6i8FxAz-RmzNlw">QUI</a>Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com3tag:blogger.com,1999:blog-36913862.post-26570037862905998092012-04-23T22:35:00.001+02:002012-04-23T22:43:11.270+02:00Fishes of Tennessee<div class="separator" style="clear: both; text-align: center;">
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Lo potete scaricare, gratuitamente e legalmente, da<a href="http://www.newfoundpress.utk.edu/pubs/fishes/"> QUI</a>. </div>
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<br /></div>Fabio Sebastianihttp://www.blogger.com/profile/12409533202180976067noreply@blogger.com0