Results 81 to 90 of about 1,226 (194)

Food and feeding habits of the blackspotted smooth-hound, Mustelus punctulatus (Elasmobranchii: Carcharhiniformes: Triakidae), from the northern Adriatic [PDF]

Acta Ichthyologica et Piscatoria, 2011
Background. The blackspotted smooth-hound, Mustelus punctulatus Risso, 1826, has been regularly caught in the northern Adriatic Sea, although a decreasing trend in its catches was observed off the coast of Slovenia within the last decade The knowledge of
L. Lipej, B. Mavriń, S. Rešek, M. Chérif, C. Capapé   +4 more
doaj   +3 more sources

FIGURE 6 in A new genus and species of catshark (Carcharhiniformes: Scyliorhinidae) from eastern Indonesia

, 2019
FIGURE 6. Species of catsharks within the subfamily Schroederichthyinae: (A) Akheilos suwartanai n. sp., (B) Schroederichthys bivius, (C) Schroederichthys chilensis, (D) Schroederichthys maculatus, (E) Schroederichthys saurisqualus, and (F ...
White, William T., Weigmann, Simon
core   +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

The Motion Picture: Leveraging Movement to Enhance AI Object Detection in Ecology

Ecology and Evolution, Volume 15, Issue 8, August 2025.
As AI methods become increasingly popular to automatically analyse ecology data, we investigate using movement information as a means to improve traditional object detection approaches (which are limited to static image information only) on over 35,000 annotated images from 1480 terrestrial, marine and freshwater locations, the most extensive ...
Ben Maslen, Gordana Popovic, Dadong Wang, Andrew Jansen, David Warton   +4 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

FIGURE 4 in A new genus and species of catshark (Carcharhiniformes: Scyliorhinidae) from eastern Indonesia

, 2019
FIGURE 4. Lateral dermal denticles of Akheilos suwartanai n. sp., holotype, MZB 18227, adult male, 537 mm TL: (A) digital microscope image (field of view 2.1 mm); (B) SEM image (field of view 1.9 mm).Published as part of White, William T.
White, William T., Weigmann, Simon
core   +1 more source

Retention Bans Are Beneficial but Insufficient to Stop Shark Overfishing

Fish and Fisheries, Volume 26, Issue 3, Page 473-487, May 2025.
ABSTRACT Sharks are among the most threatened groups of exploited fishes, comprising common bycatch across many fisheries. Management efforts intended to safeguard threatened species have increasingly focused on retention bans to reduce bycatch mortality. However, the population effects of such measures remain unevaluated across species.
Leonardo Manir Feitosa, Alicia M. Caughman, Nidhi G. D'Costa, Sara Orofino, Echelle S. Burns, Laurenne Schiller, Boris Worm, Darcy Bradley   +7 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

FIGURE 6 in Gollum suluensis sp. nov. (Carcharhiniformes: Pseudotriakidae), a new gollumshark from the southern Philippines

, 2011
FIGURE 6. Ridge of enlarged denticles along dorsal caudal margin in: A, Gollum suluensis sp. nov., holotype, PNM 15175, 585 mm TL, adult male; and B, G. attenuatus, NMNZ P 5724, 922 mm TL, adult male.Published as part of Last, Peter R. & Gaudiano, Joe P.,
Last, Peter R., Gaudiano, Joe P.
core   +1 more source

Drivers and rates of stock assessments in the United States.

PLoS ONE, 2018
Fisheries management is most effective when based on scientific estimates of sustainable fishing rates. While some simple approaches allow estimation of harvest limits, more data-intensive stock assessments are generally required to evaluate the stock's ...
Philipp Neubauer, James T Thorson, Michael C Melnychuk, Richard Methot, Kristan Blackhart   +4 more
doaj   +1 more source