Results 31 to 40 of about 220 (123)

Embryonic development timeline in skates (Chondrichthyes: Rajiformes): Sympterygia acuta as the first case study in the family Arhynchobatidae

, 2022
Oviparous elasmobranch embryos (Chondrichthyes) have been the focus of several embryological studies; they are useful models for studying early ontogeny in vertebrates, as can help explore the existence of common developmental patterns among species ...
Lucifora, Luis Omar, Awruch, Cynthia Andrea, Vazquez, Diego Martin, Mabragaña, Ezequiel, Díaz de Astarloa, Juan Martín   +4 more
core   +1 more source

A Review of the Status of Sharks, Rays and Chimaeras of Panama to Guide Research and Conservation

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 4, April 2025.
ABSTRACT Chondrichthyan fishes (sharks, rays and chimaeras) are a group of high conservation concern globally. Species are impacted by varying threats, although fishing pressure is the primary stressor causing population declines. Panama comprises both Pacific and Caribbean coastlines with a diversity of estuarine and marine habitats supporting small ...
Jorge Manuel Morales‐Saldaña, Hector M. Guzmán, Angel J. Vega, Yolani A. Robles, Luis A. Montes, Peter M. Kyne   +5 more
wiley   +1 more source

Trends in elasmobranch feeding ecology studies

Ocean and Coastal Research
Reviews can be useful to provide an overview of specific knowledge areas to facilitate research guidelines and the comparison of study results.
Hugo Bornatowsk, Maiara A. Hayata, Renato H. A. Freitas   +2 more
doaj   +1 more source

FIG. 14 in New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific

, 2012
FIG. 14. — Dorsal head of Notoraja fijiensis n. sp., holotype (MNHN 1999-0450, female 386 mm TL). Scale bar: 1 cm.Published as part of Séret, Bernard & Last, Peter R., 2012, New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei ...
Last, Peter R., Séret, Bernard
core   +1 more source

Vulnerability of Eastern Tropical Pacific chondrichthyan fish to climate change

Global Change Biology, Volume 30, Issue 7, July 2024.
This assessment identifies sharks' vulnerability to climate change in a data‐poor tropical region and suggests management actions. Abstract Climate change is an environmental emergency threatening species and ecosystems globally. Oceans have absorbed about 90% of anthropogenic heat and 20%–30% of the carbon emissions, resulting in ocean warming ...
Florencia Cerutti‐Pereyra, Elizabeth J. Drenkard, Mario Espinoza, Brittany Finucci, Felipe Galván‐Magaña, Ana Hacohen‐Domené, Alexander Hearn, Mauricio E. Hoyos‐Padilla, James T. Ketchum, Paola A. Mejía‐Falla, Ana V. Moya‐Serrano, Andres F. Navia, Diana A. Pazmiño, Deni Ramírez‐Macías, Jodie L. Rummer, Pelayo Salinas‐de‐León, Oscar Sosa‐Nishizaki, Charles Stock, Andrew Chin   +18 more
wiley   +1 more source

First observation of a skate egg case nursery in the Ross Sea

Journal of Fish Biology, Volume 104, Issue 5, Page 1645-1650, May 2024.
Abstract Areas of importance to Southern Ocean skates are poorly defined. Here, we identify a deepwater skate egg case nursery in a discrete location at ~460 m depth off Cape Adare in the Southern Ocean. This is the first confirmed observation of a skate nursery area in the Ross Sea and only the second observation for the Southern Ocean. The morphology
Brittany Finucci, Caroline Chin, Helen L. O'Neill, William T. White, Matthew H. Pinkerton   +4 more
wiley   +1 more source

FIGURE 5 in A new species of velvet skate, Notoraja sereti n. sp. (Rajiformes: Arhynchobatidae) from Papua New Guinea

, 2017
FIGURE 5. Dorsal head of Notoraja sereti n. sp.: (A) holotype, NTUM 10067, female 459 mm TL; (B) paratype, NTUM 10330, subadult male 363 mm TL.Published as part of White, William T., Last, Peter R.
White, William T., Mana, Ralph R., RALPH R. MANA, Last, Peter R., WILLIAM T. WHITE, PETER R. LAST   +5 more
core   +1 more source

First mature male record of Bathyraja schroederi (Elasmobranchii, Arhynchobatidae) from the South Atlantic, with descriptions of its clasper and skeletal characters

, 2014
Stehmann, Matthias F.W., Pompert, Joost H.W. (2014): First mature male record of Bathyraja schroederi (Elasmobranchii, Arhynchobatidae) from the South Atlantic, with descriptions of its clasper and skeletal characters.
Stehmann, Matthias F.W., Pompert, Joost H.W.   +1 more
core   +1 more source

FIG. 5 in New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific

, 2012
FIG. 5. — Dorsal dermal denticles of: A, Notoraja alisae n. sp. (holotype MNHN 1997-3598); B, N. longiventralis n. sp. (holotype MNHN 1999-0449); C, N. fijiensis n. sp. (holotype MNHN 1999-0450); D, N. inusitata n. sp. (MNHN 2008-1638).
Last, Peter R., Séret, Bernard
core   +1 more source

FIG. 19 in New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific

, 2012
FIG. 19. — Map of the southwestern Pacific Ocean showing the capture localities of the four species of Notoraja Ishiyama, 1958: H, N. alisae n. sp. (J,dark morph); l, N. inusitata n. sp.; s, N. fijiensis n. sp.;:, N. longiventralis n.
Last, Peter R., Séret, Bernard
core   +1 more source