Results 51 to 60 of about 2,992 (213)

Evidencia del máximo número de crías en la raya mariposa, Gymnura lessae (Myliobatiformes: Gymnuridae), en el Golfo de México

Acta Zoológica Lilloana, 2023
La raya mariposa menor Gymnura lessae es endémica del atlántico noroccidental, incluyendo al Golfo de México. Es una especie con dimorfismo sexual, vivípara y con un ciclo anual reproductivo. En esta contribución se confirma el máximo número de crías en
ANDY ALEXANDER LARA-ALCANTARA, OSCAR MENDEZ, LUIS FERNANDO DEL MORAL-FLORES   +2 more
doaj   +1 more source

Hidden Mortality: Bottom Trawling Challenges the Legal Protection of Vulnerable Marine Species

Conservation Letters, Volume 19, Issue 5, September/October 2026.
ABSTRACT Legal protection of species is a central conservation instrument, yet its effectiveness depends on limiting incidental harm. Bottom trawl fisheries are inherently nonselective and frequently capture nontarget species. This creates a legal–management inconsistency: Bottom trawling remains permitted, whereas protected‐species statutes prohibit ...
Ateret Shabtay, Dana Kruger, Erez Yeruham, Alon Rothschild   +3 more
wiley   +1 more source

New light on the trophic ecology of Carcharodon hastalis from teeth embedded in Miocene cetacean vertebrae from Calvert Cliffs in Maryland, USA

Acta Palaeontologica Polonica
Recent isotopic analyses of the teeth of the extinct lamnid Carcharodon hastalis showed that it fed at a comparable trophic level as was the fossil and modern great white shark, Carcharodon carcharias. Although there are many examples of shark bite marks
Stephen J. Godfrey, Victor J. Perez, Marcus Jones, Phillip F. Chapman, Nathan Spencer, Jason E. Osborne   +5 more
doaj   +1 more source

Environmental DNA Reveals Distinct Regions of Extraordinary Marine Biodiversity to Inform a Newly Established Marine Park—Exmouth Gulf, Western Australia

Diversity and Distributions, Volume 32, Issue 9, September 2026.
ABSTRACT Aim Exmouth Gulf, Western Australia, is a globally significant refuge for many marine megafauna species. The recent designation of a marine park in Exmouth Gulf underscores its environmental, social and cultural significance but remains a site of competing interests.
Jessica R. Pearce, Marcelle Ayad, Sallyann Gudge, Karissa Lear, Rebecca L. Bateman‐John, Matthew W. Fraser, Bianca Graham, Joshua L. Bonesso   +7 more
wiley   +1 more source

FIGURE 1 in Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP)

, 2023
FIGURE 1. Graphic showing the diversity of Elasmobranchii type-specimens at the MZUSP ichthyological collection, sorted by their respective orders.Published as part of Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo ...
Gianeti, Michel Donato, Pinna, Mario De, Loboda, Thiago Silva, Lima, Arthur De, Silva, João Paulo Capretz Batista Da   +4 more
core   +1 more source

Danger on the plate: human health risks derived from the consumption of angular angelshark (Squatina guggenheim) meat in southeastern Brazil

Frontiers in Toxicology
IntroductionShark and ray species are particularly vulnerable to pollutant bioaccumulation, including metals and metalloids, due to their k-strategist characteristics and mid–high trophic level.
Amanda Pontes Lopes, Amanda Pontes Lopes, Rebeca Dias de Souza Coutinho, Rebeca Dias de Souza Coutinho, Tatiana Dillenburg Saint’Pierre, Rachel Ann Hauser-Davis   +5 more
doaj   +1 more source

Tooth morphology of deep‐water catsharks of the genus Apristurus (Chondrichthyes: Pentanchidae) in the North Atlantic Ocean

Journal of Fish Biology, Volume 109, Issue 3, Page 1540-1557, September 2026.
Abstract The deep‐water catshark family (Pentanchidae) is the most species‐rich family among extant shark lineages. Within this family, the genus Apristurus is the largest, comprising small, deep‐sea species characterised by elongated bodies and dorso‐ventrally compressed snouts. Five Apristurus species are currently recognised from the North Atlantic,
Jesco Seifert, Daniel M. Moore
wiley   +1 more source

Standardized data to support conservation prioritization for sharks and batoids (Elasmobranchii)

Data in Brief, 2020
We collated and synthesized information on 1,226 Elasmobranch species (i.e., sharks, rays, and skates) globally from a wide range of sources. We obtained curated and standardized data from online databases, legal documents, press releases, and websites.
Oegelund Nielsen, Rikke, da Silva, Rita, Juergens, Jacqueline, Staerk, Johanna, Lindholm Sørensen, Line, Jackson, John, Smeele, Simeon Quirinus, Conde, Dalia A   +7 more
openaire   +4 more sources

GAG components from various kinds of Elasmobranchii.

, 2015
(A) Depiction of 11 kinds of Elasmobranchii. Position of fin samples used in this study are shown in red. (B) Determination of disaccharide compositions of GAGs.
Yoshiki Takeuchi (710656), Masaki Miya (68675), Toshihiko Toida (597501), Hideyuki Tomitori (710658), Ann Mukuno (710657), Robert J. Linhardt (710659), Kyohei Higashi (597495)   +6 more
core   +1 more source

Sharks, Rays and a Chimaeroid from the Kimmeridgian (Late Jurassic) of Ringstead, Southern England [PDF]

, 2002
Sampling of a lenticular concentration of vertebrate debris and associated sediments from the lower Kimmeridgian of southern England has allowed the study of a diverse and abundant assemblage of chondrichthyan remains.
Underwood, Charlie J.
core   +2 more sources