Results 41 to 50 of about 10,818 (235)

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

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

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

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

Editorial: The biology and conservation of elasmobranchs and chimaeras

Frontiers in Marine Science
Elizabeth Grace Tunka Bengil, Nuri Başusta   +1 more
exaly   +3 more sources

Early evolution of the gular musculature and its innervation in ray‐finned fishes

The Anatomical Record, EarlyView.
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo, Paulo Presti, George Vita, Murilo N. L. Pastana, Luiz A. W. Peixoto   +4 more
wiley   +1 more source

Field assessment of behavioural responses of southern stingrays (Hypanus americanus) to acoustic stimuli [PDF]

Royal Society Open Science, 2020
The ability of elasmobranchs to detect and use sound cues has been heavily debated in previous research and has only recently received revived attention.
Megan F. Mickle, Rachel H. Pieniazek, Dennis M. Higgs   +2 more
doaj   +1 more source