Results 41 to 50 of about 3,196 (192)

Evidence for the first multi-species shark nursery area in Atlantic Africa (Boa Vista Island, Cabo Verde)

Frontiers in Marine Science, 2023
This study describes the first potential multi-species shark nursery area in Atlantic Africa (Sal Rei Bay – SRB, Boa Vista Island, Cabo Verde). From August 2016 to September 2019, 6162 neonates and juveniles of 5 different shark species were observed in ...
Rui Rosa, Rui Rosa, Rui Rosa, Emanuel Nunes, Emanuel Nunes, Vasco Pissarra, Vasco Pissarra, Catarina Pereira Santos, Catarina Pereira Santos, Catarina Pereira Santos, Jaquelino Varela, Jaquelino Varela, Miguel Baptista, Joana Castro, Joana Castro, José Ricardo Paula, José Ricardo Paula, Tiago Repolho, Tiago Repolho, Tiago A. Marques, Tiago A. Marques, Tiago A. Marques, Rui Freitas, Catarina Frazão Santos, Catarina Frazão Santos, Catarina Frazão Santos, Catarina Frazão Santos   +26 more
doaj   +1 more source

Modeling sensitive elasmobranch habitats [PDF]

Journal of Sea Research, 2013
Peer ...
Grazia Pennino, Maria, Munoz, Facundo, Conesa, David, López-Quıílez, Antonio, Bellido, José María   +4 more
openaire   +3 more sources

Plasma 1α-Hydroxycorticosterone as Biomarker for Acute Stress in Catsharks (Scyliorhinus canicula)

Frontiers in Physiology, 2019
Glucocorticoids are pleiotropic steroid hormones mediating redistribution of energy. They induce breakdown of glycogen stores and consequent plasma hyperglycaemia after stressful situations.
Ignacio Ruiz-Jarabo, Cristina Barragán-Méndez, Ismael Jerez-Cepa, Miriam Fernández-Castro, Ignacio Sobrino, Juan M. Mancera, Johan Aerts, Johan Aerts   +7 more
doaj   +1 more source

Bycatch Estimates From a Pacific Tuna Longline Fishery Provide a Baseline for Understanding the Long-Term Benefits of a Large, Blue Water Marine Sanctuary

Frontiers in Marine Science, 2021
Bycatch on pelagic tuna longlines has contributed to population declines in several far-ranging, oceanic species and presents a conservation challenge that area-based management tools are increasingly promoted to address.
Vanessa Jaiteh, Vanessa Jaiteh, Tom Peatman, Tom Peatman, Steve Lindfield, Eric Gilman, Simon Nicol, Simon Nicol   +7 more
doaj   +1 more source

An integrated approach to tackling wildlife crime: Impact and lessons learned from the world's largest targeted manta ray fishery

Conservation Science and Practice, 2021
Manta rays (Mobula birostris and M. alfredi) are threatened by overexploitation for international trade. Indonesia was home to the world's largest documented manta fishery—Lamakera, in East Nusa Tenggara.
Hollie Booth, Ulfah Mardhiah, Hanifah Siregar, Jonathan Hunter, Giyanto, Mochamad Iqbal Herwata Putra, Jo Marlow, Andi Cahyana, Boysandi, Apolinardus Yosef Lia Demoor, Sarah Lewis, Dwi Adhiasto, Luky Adrianto, Irfan Yulianto   +13 more
doaj   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

The musculature and skeleton of the pelvic fin of the crocodile shark, Pseudocarcharias kamoharai (Matsubara, 1936) (Elasmobranchii: Lamniformes): Morphology and sexual dimorphism

The Anatomical Record, EarlyView.
This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti, Kenshu Shimada, João Paulo C. B. da Silva   +2 more
wiley   +1 more source

Distribution and population structure of the smooth‐hound shark, Mustelus mustelus (Linnaeus, 1758), across an oceanic archipelago: Combining several data sources to promote conservation

Ecology and Evolution, 2022
Sharks play a key role in the structure and functioning of marine ecosystems. More ecological information is essential to implement responsible management and conservation actions on this fauna, particularly at a regional level for threatened species ...
Fernando Espino, José Antonio González, Néstor E. Bosch, Francisco J. Otero‐Ferrer, Ricardo Haroun, Fernando Tuya   +5 more
doaj   +1 more source