Results 31 to 40 of about 680 (176)

Squalus shiraii sp. nov. (Squaliformes, Squalidae), a new species of dogfish shark from Japan with regional nominal species revisited [PDF]

Zoosystematics and Evolution, 2020
A new species of deep-water dogfish shark, Squalus shiraii sp. nov., is described herein as endemic to the tropical waters off Southern Japan. This species has been largely misidentified with S. mitsukurii.
Sarah T. F. L. Viana, Marcelo R. de Carvalho   +1 more
doaj   +3 more sources

Estudo comparativo do neurocrânio de duas espécies da família Squalidae: Cirrhigaleus asper (Merret, 1973) e Squalus acanthias Linnaeus, 1758 (Elasmobranchii: Squaliformes) [PDF]

, 2021
The neurocranium of sharks represents a valuable source of phylogenetic information due to its morphological plasticity . For this reason, an in-depth anatomical analysis of the neurocranium of two representatives of the family Squalidae ...
Cardoso, Jade Medeiros de França
core   +1 more source

New record of the Japanese roughshark, Oxynotus japonicus Yano et Murofushi, 1985 (Elasmobranchii: Squaliformes: Oxynotidae) in Taiwan [PDF]

Acta Ichthyologica et Piscatoria, 2016
A specimen of the rare Japanese prickly dogfish, known also as the Japanese roughshark, Oxynotus japonicus Yano et Murofushi, 1985, was recently collected from the north-eastern Taiwan at the Daxi fish market. It represents the first record of the family,
C. Ho H., K. Nakaya
doaj   +3 more sources

Are shark teeth proxies for functional traits? A framework to infer ecology from the fossil record

Journal of Fish Biology, Volume 103, Issue 4, Page 798-814, October 2023., 2023
Abstract Modern sharks have an evolutionary history of at least 250 million years and are known to play key roles in marine systems, from controlling prey populations to connecting habitats across oceans. These ecological roles can be quantified based on their functional traits, which are typically morphological (e.g., body size) or behavioural (e.g ...
Jack A. Cooper, John N. Griffin, René Kindlimann, Catalina Pimiento   +3 more
wiley   +1 more source

Photophore Distribution and Enzymatic Diversity Within the Photogenic Integument of the Cookie-Cutter Shark Isistius brasiliensis (Chondrichthyes: Dalatiidae)

Frontiers in Marine Science, 2021
The cookie-cutter shark Isistius brasiliensis (Squaliformes: Dalatiidae) is a deep-sea species that emits a blue luminescence ventrally, except at the level of a black band located beneath the jaw.
Jérôme Delroisse, Laurent Duchatelet, Patrick Flammang, Jérôme Mallefet   +3 more
doaj   +1 more source

Marine communities of the newly created Kawésqar National Reserve, Chile: From glaciers to the Pacific Ocean.

PLoS ONE, 2021
The newly created Kawésqar National Park (KNP) and National Reserve (KNR) in southern Chile consists of diverse terrestrial and marine habitats, which includes the southern terminus of the Andes, the Southern Patagonia Ice Fields, sub-Antarctic ...
Alan M Friedlander, Enric Ballesteros, Whitney Goodell, Mathias Hüne, Alex Muñoz, Pelayo Salinas-de-León, Catalina Velasco-Charpentier, Enric Sala   +7 more
doaj   +1 more source

Rich and underreported: First integrated assessment of the diversity of mesopelagic fishes in the Southwestern Tropical Atlantic

Frontiers in Marine Science, 2022
Mesopelagic fishes play critical ecological roles by sequestering carbon, recycling nutrients, and acting as a key trophic link between primary consumers and higher trophic levels.
Leandro Nolé Eduardo, Leandro Nolé Eduardo, Arnaud Bertrand, Arnaud Bertrand, Arnaud Bertrand, Flávia Lucena-Frédou, Bárbara Teixeira Villarins, Júlia Rodrigues Martins, Gabriel Vinícius Felix Afonso, Theodore Wells Pietsch, Thierry Frédou, Fabio Di Dario, Michael Maia Mincarone   +12 more
doaj   +1 more source

Additional records of the little sleeper shark, Somniosus rostratus (Elasmobranchii: Squaliformes: Somniosidae), in Mediterranean Sea [PDF]

Acta Ichthyologica et Piscatoria
This study investigates the distribution and morphometrics of the little sleeper shark, Somniosus rostratus (Risso, 1827), in the Mediterranean Sea. Ten sharks caught as bycatch between 2009 and 2019 in the northern sectors of the Strait of Sicily, the ...
Gianni Insacco, Bruno Zava, Filippo Spadola, Danilo Scannella, Alan Deidun, Franco Cigala-Fulgosi, Massimiliano Valastro, Antonio Di Natale, Corrado Piccinetti, Maria Corsini-Foka   +9 more
doaj   +3 more sources

The description of two new species of Chloromyxum from skates in the Argentine Sea reveals that a limited geographic host distribution causes phylogenetic lineage separation of myxozoans in Chondrichthyes

Parasite, 2018
During a survey on the myxosporean fauna of Rajiformes from the Atlantic coast of Argentina, in waters off Buenos Aires Province (34°–42°S; 53°–62°W), the gall bladders of 217 specimens belonging to seven species of skates, representatives of two ...
Cantatore Delfina María Paula, Irigoitia Manuel Marcial, Holzer Astrid Sibylle, Bartošová-Sojková Pavla, Pecková Hana, Fiala Ivan, Timi Juan Tomás   +6 more
doaj   +1 more source

Genetic Population Structure and Diversity of the Whitetail Dogfish Squalus albicaudus (Chondrichthyes, Squaliformes) along the Brazilian Coast as Identified by SNP Markers

Fishes, 2023
The shark Squalus albicaudus, categorized by the International Union for Conservation of Nature red list as Data Deficient due to lack of minimal information for classification, is distributed throughout the Brazilian coast.
Aisni M. C. L. Adachi, Pollyana C. G. Roque, Fabio H. V. Hazin, Marcelo Vianna, Matheus M. Rotundo, Claudio Oliveira, Fausto Foresti, Vanessa P. Cruz   +7 more
doaj   +1 more source