Results 71 to 80 of about 680 (176)

On the taxonomy of the first record of rare deep-water rough shark species of Oxynotidae (Chondrichthyes: Squaliformes) in the western Indian Ocean

Journal of Threatened Taxa, 2018
An immature female specimen of rough shark was collected south of Reunion Island in the Madagascar Basin in 2009 aboard R/V Dr. Fridtjof Nansen, representing the first official record of the family Oxynotidae in the western Indian Ocean.  The specimen is
Sarah Viana, Mark W. Lisher
doaj   +1 more source

Comparison of traditional and molecular surveys of fish biodiversity in southern Te Wāhipounamu/Fiordland (Aotearoa/New Zealand)

Environmental DNA, Volume 6, Issue 1, January–February 2024.
At the remote UNESCO Word Heritage Site Te Wāhipounamu, we show that eDNA analysis is a highly sensitive tool with strong potential for biodiversity surveys, which is still limited by the unavailability of local reference data. We hope that by demonstrating the extend of divergence between eDNA and more traditional tools in a real‐life case study of a ...
Paul Czechowski, Michel de Lange, Michael Heldsinger, Anya Kardailsky, Will Rayment, Christopher Hepburn, Monique Ladds, Michael Knapp   +7 more
wiley   +1 more source

Fig. 1 in A New Southern Caribbean Species of Angel Shark (Chondrichthyes, Squaliformes, Squatinidae), Including Phylogeny and Tempo of Diversification of American Species

, 2016
Fig. 1. (A–B) Squatina david, new species. (A) Male, holotype, 787 mm TL, INVEMAR PEC8250. (B) Female, paratype, 748 mm TL, INVEMAR PEC8252. Zoom on mid-dorsal line, highlighting lack of thorns or enlarged dermal denticles.Published as part of Arturo ...
Arturo Acero P., José J. Tavera, Rafael Anguila, Luis Hernández   +3 more
core   +1 more source

Two New Species of Microbothrium (Monogenea: Microbothriidae) Parasitic on Japanese Squalids (Elasmobranchii: Squaliformes)

Species Diversity
Microbothrium Olsson, 1869 (Monogenea: Monopisthocotylea) is the type genus of Microbothriidae and presently comprises three accepted species that parasitize squaliform sharks.
Masato Nitta, Shogo Ota
doaj   +1 more source

Analysis of Cookiecutter shark Isistius spp. (Squaliformes; Dalatiidae) bites in cetaceans (Mammalia; Cetacea) on the Bahia coast, northeastern Brazil [PDF]

Biotemas, 2007
Few studies have registered signs of mutilation on cetaceans in Brazil, especially from shark attacks. This work describes interactions between cookiecutter sharks Isistius spp.
Cláudio L. S. Sampaio, Rodrigo Maia-Nogueira, José de Anchieta Cintra da Costa Nunes, Janete Gomes Abrão Oliveira, Luciano Raimundo Alardo Souto   +4 more
doaj  

Earliest Danian outer neritic elasmobranch assemblages reveal an environmentally controlled faunal turnover at the Cretaceous–Palaeogene boundary in the northern Tethyan Realm (Austria)

Papers in Palaeontology, Volume 10, Issue 1, January/February 2024.
Abstract This study reports elasmobranch remains from two fossil‐rich horizons in the earliest Danian Olching Formation at Waidach, Austria. These outer neritic assemblages complement previous fine‐scale bulk‐sampling of latest Maastrichtian horizons at Waidach and document a regional elasmobranch faunal turnover across the Cretaceous–Palaeogene (K–Pg)
Iris Feichtinger, Jürgen Pollerspöck, Mathias Harzhauser, Gerald Auer, Stjepan Ćorić, Matthias Kranner, Bernhard Beaury, Guillaume Guinot   +7 more
wiley   +1 more source

Fig. 3 in Redescription of Squalus acutipinnis Regan, 1908, a Valid Species of Spiny Dogfish from Southern Africa (Chondrichthyes: Squaliformes: Squalidae)

, 2016
Fig. 3. External morphology of clasper of Squalus acutipinnis (SAIAB 10443, adult male, 410 mm TL from Cape Town, South Africa) in dorsal view. Abbreviations: accessory terminal cartilage (T3); apopyle (AP); clasper groove (CG); hypopyle (HP); pelvic fin
Sarah T. de F. Viana, Marcelo R. de Carvalho   +1 more
core   +1 more source

Effects of Temperature on the Gastric Evacuation Rate and Maintenance Ration of Adult Pointhead Flounder Cleisthenes pinetorum

Journal of Applied Ichthyology, Volume 2024, Issue 1, 2024.
We investigated the gastric evacuation rate (GER) and maintenance ration (MR) for the adult pointhead flounder Cleisthenes pinetorum (77–421 g) at 4°C, 9°C, and 14°C which reflect the bottom, middle, and surface temperatures of their habitat in early summer.
Sango Nishio, Orio Yamamura, Mohamed Abdelsalam   +2 more
wiley   +1 more source

FIG. 3 in First pelagic record of the velvet dogfish Zameus squamulosus (Günther, 1877) (Squaliformes) from the southwestern Indian Ocean and some notes on its regional distribution

, 2013
FIG. 3. — Dermal denticles from the trunk region of Zameus squamulosus (Günther, 1877) caught in the pelagic and demersal environment: A, MNHN 2012-0188, female, 676 mm TL; B, female from demersal zone of the southeastern Indian Ocean shown on the Figure
Rebik, Sergei T., Bach, Pascal, Séret, Bernard, Romanov, Evgeny V., Turc, Alexandre Le   +4 more
core   +1 more source

Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 1—Redescription of Centrophorus granulosus (Bloch & Schneider), a senior synonym of C. acus Garman and C. niaukang Teng

, 2013
White, William T., Ebert, David A., Naylor, Gavin J.P., Ho, Hsuan-Ching, Clerkin, Paul, Veríssimo, Ana, Cotton, Charles F. (2013): Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 1-Redescription of Centrophorus granulosus (Bloch &
CHARLES F. COTTON, WILLIAM T. WHITE, GAVIN J.P. NAYLOR, Naylor, Gavin J.P., ANA VERÍSSIMO, PAUL CLERKIN, White, William T., Ebert, David A., Veríssimo, Ana, DAVID A. EBERT, Ho, Hsuan-Ching, Clerkin, Paul, HSUAN-CHING HO, Cotton, Charles F.   +13 more
core   +1 more source