Results 81 to 90 of about 2,748 (207)

Predicting time‐at‐depth weighted biodiversity patterns for sharks of the North Pacific

Ecography, Volume 2025, Issue 3, March 2025.
Depth is a fundamental and universal driver of ocean biogeography but it is unclear how the biodiversity patterns of larger, more mobile organisms change as a function of depth. Here, we developed a predictive biogeography model to explore how information of mobile species' depth preferences influence biodiversity patterns.
Zachary A. Siders, Lauren B. Trotta, William Patrone, Fabio P. Caltabellotta, Katherine B. Loesser, Benjamin Baiser   +5 more
wiley   +1 more source

Edad y crecimiento del tiburón gatuzo Mustelus schmitti (Carcharhiniformes, Triakidae) en aguas costeras de la provincia de Chubut, Patagonia, Argentina

Ecología Austral
El gatuzo, Mustelus schmitti (Carcharhiniformes, Triakidae) es un tiburón endémico del Océano Atlántico Sudoccidental y está catalogado como en peligro crítico por la UICN. La edad y el crecimiento de M.
Ximena Navoa, Nelson D. Bovcon, Matías Suárez, Alessandra Pasti, Kevin J. Jacobi, Marina Coller, Gustavo E. Chiaramonte   +6 more
doaj   +1 more source

Sexual dimorphism in chain catshark, Scyliorhinus retifer (Elasmobranchii, Carcharhiniformes, Scyliorhinidae): Morphology and dermal denticles evidence [PDF]

Acta Ichthyologica et Piscatoria
We studied the morphological variation of the chain dogfish, Scyliorhinus retifer (Garman, 1881), to demonstrate sexual dimorphism based on 15 adult males {434–557 mm total length (TL)} and 10 adult females (437–556 mm TL) captured in the southern Gulf ...
Mónica Jimena Juárez-Maldonado, Luis Fernando Del Moral-Flores   +1 more
doaj   +3 more sources

Design and Validation of an Open–Close Device for Integrated Environmental DNA Sampling Detects A Depth Gradient in Indian Ocean Deep‐Sea Fish Assemblages

Ecology and Evolution, Volume 15, Issue 2, February 2025.
The goal of this study was to leverage existing survey technology to design and test an eDNA sampler that captures an integrated eDNA sample over the length of a deep‐water transect. We provide a biological interpretation of the resulting data, demonstrating the usefulness of such technology to understand the ocean environments, using fish species as ...
Cindy Bessey, Andrew Martini, Alasdair Currie, Will Ponsonby, Aaron Tyndall, Ryan Crossing, Vinícius Werneck Salazar, Kathryn L. Dawkins, John J. Pogonoski, Glenn Moore, Nick Mortimer, John K. Keesing   +11 more
wiley   +1 more source

PROBLEMATIC IDENTITY OF THE SMALLEYE HAMMERHEAD (CARCHARHINIFORMES: SPHYRNA) OCCURRING IN COLOMBIA

Bulletin of Marine and Coastal Research, 2016
The presence of Sphyrna tudes in Colombian waters is supported by a 506 mm total length male collected in the southernmost corner of the Caribbean Sea, the mouth of Atrato river. A short discussion on the confusing taxonomic and nomenclatural history of the smalleye hammerhead is included.
Arturo Acero P., Diego Cánter Ríos†, Andrea Polanco F.   +2 more
openaire   +1 more source

Mitochondrial DNA patterns describe the evolutionary history of the bonnethead shark Sphyrna tiburo (Linneus 1758) complex in the western Atlantic Ocean

Journal of Fish Biology, Volume 106, Issue 2, Page 403-419, February 2025.
Abstract The apparent lack of physical barriers in the marine realm has created the conception that many groups have a constant gene flow. However, changes in ocean circulation patterns, glacial cycles, temperature, and salinity gradients are responsible for vicariant events in many fish species, including sharks.
Maried Ochoa‐Zavala, Adan Fernando Mar‐Silva, Rodolfo Pérez‐Rodríguez, Paola Palacios‐Barreto, Douglas H. Adams, María del Pilar Blanco‐Parra, Píndaro Díaz‐Jaimes   +6 more
wiley   +1 more source

Population genetics of four heavily exploited shark species around the Arabian Peninsula. [PDF]

, 2015
The northwestern Indian Ocean harbors a number of larger marine vertebrate taxa that warrant the investigation of genetic population structure given remarkable spatial heterogeneity in biological characteristics such as distribution, behavior, and ...
Berumen, ML, Henderson, AC, Jabado, RW, Moore, ABM, Spaet, JLY   +4 more
core   +2 more sources

Sharks, bony fishes and endodental borings from the Miocene Montpelier Formation (White Limestone Group) of Jamaica [PDF]

, 2004
Bulk samples of Miocene carbonate sediments (deep-water chalks and shallow-water-derived calcarenites) from the Montpelier Formation (White Limestone Group) in Duncans Quarry, Jamaica, have yielded a small, but diverse, fauna of disassociated fish ...
Mitchell, S.F., Underwood, Charlie J.
core  

The rise and fall of shark functional diversity over the last 66 million years

Global Ecology and Biogeography, Volume 33, Issue 9, September 2024.
Abstract Aim Modern sharks are a diverse and highly threatened group playing important roles in ecosystems. They have an abundant fossil record spanning at least 250 million years (Myr), consisting primarily of isolated teeth. Throughout their evolutionary history, sharks have faced multiple environmental changes and extinction events.
Jack A. Cooper, Catalina Pimiento
wiley   +1 more source

Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil [PDF]

, 2009
The ongoing decline in abundance and diversity of shark stocks, primarily due to uncontrolled fishery exploitation, is a worldwide problem. An additional problem for the development of conservation and management programmes is the identification of ...
ROCHA, Tainá Carreira da, RODRIGUES-FILHO, Luis Fernando da Silva, RÊGO, Péricles Sena do, SAMPAIO, Maria Iracilda da Cunha, SCHNEIDER, Horacio, SOUZA, Marcelo Nazareno Vallinoto de   +5 more
core   +1 more source