Results 71 to 80 of about 665 (154)

Morphological Diversity of Neurocrania in Sharks (Chondrichthyes: Elasmobranchii) and Its Ecological and Evolutionary Implications [PDF]

open access: yes, 2023
Sharks occupy a wide range of ecological niches and lifestyle strategies attributed to their complex sensory system housed in their neurocranium. However, the diversity of neurocranial morphology in sharks and how the diversity may be related to their ...
Wood, Jake J.
core   +1 more source

Outros [PDF]

open access: yes, 2018
XXXII Congresso Brasileiro de Zoologia, Foz do Iguaçu, 2018. Tema: Desafios e perspectivas para a Zoologia na América LatinaCaderno de Resumos de Trabalhos da Área temática Outros, do XXXII Congresso Brasileiro de ZoologiaSociedade Brasileira de Zoologia

core  

Interspecific and intraspecific variability in placoid scale morphology in relation to body form variability in squaliformes [PDF]

open access: yes, 1993
An ontogenetic series of nine species; Centrophorus granulosus, Centroscymnus coelolepis, Dalatias licha, Deania calcea, Echinorhinus cookei, Isistius brasiliensis, Oxynotus centrina and Squalus acanthias were studied to determine swimming capabilities ...
Tabit, Christopher R.
core   +2 more sources

What is known about cookiecutter shark (Isistius spp.) interactions with cetaceans in Cape Verde seas? [PDF]

open access: yes, 2015
In the North Atlantic, the waters surrounding the Cape Verde Islands are a "potential hot spot" for cookiecutter shark Isistius spp. interactions with cetaceans. These occurrences were recently identified by the improved efforts of researchers to document cetacean strandings in the Cape Verde archipelago, as well as by the photo identification efforts ...
Wenzel, Frederick W.   +1 more
openaire  

Crassicaudiasis in three geographically and chronologically distant Cuvier's beaked whales (Ziphius cavirostris) stranded off Brazil. [PDF]

open access: yesInt J Parasitol Parasites Wildl, 2021
Febronio AMB   +19 more
europepmc   +1 more source

Extinction risk and conservation of the world\u27s sharks and rays [PDF]

open access: yes, 2014
The rapid expansion of human activities threatens ocean-wide biodiversity. Numerous marine animal populations have declined, yet it remains unclear whether these trends are symptomatic of a chronic accumulation of global marine extinction risk.
Burgess, George H.   +22 more
core   +1 more source

Первое описание акулы Isistius brasiliensis (Dalatiidae) из вод России

open access: yesИзвестия ТИНРО (Тихоокеанского научно-исследовательского рыбохозяйственного центра), 2015
Приводится описание акулы Isistius brasiliensis (длина 452 мм, масса 430 г), пойманной у южных Курильских островов 18 июля 1978 г. Кроме пластических признаков сообщается о количестве туловищных и хвостовых позвонков, рядов зубов, рядов сердечных клапанов и витков спирального клапана кишечника.
openaire   +1 more source

Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications [PDF]

open access: yes, 2019
Sharks are among the oldest vertebrate lineages in which their success has been attributed to their diversity in body shape and locomotor design. In this study, I investigated the diversity of body forms in extant sharks using landmark-based geometric ...
Sternes, Phillip C.
core   +1 more source

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