Results 21 to 30 of about 6,095 (244)
Osmoregulation in Elasmobranchs [PDF]
American Zoologist, 1977 Osmoregulatory mechanisms were examined in major groups of fishes including hagfish, holocephalans, elasmobranchs, the coelacanth, and ray-fin fishes. Four main patterns of body fluid composition emerged. These represent the three main osmoregulatory processes in the marine environment and the one in fresh water.
PETER K. T. PANG +2 more
openaire +1 more source
An Exploratory Study of Telomere Length in the Deep-Sea Shark, Etmopterus granulosus
Frontiers in Marine Science, 2021 The history of elasmobranch ageing highlights the difficulty of age estimation in animals lacking ossified structures. Ageing techniques are numerous, yet all are limited by difficulties of validation and verification and inherent subjectivity.
Melissa C. Nehmens +5 more
doaj +1 more source
Immature individuals dominate elasmobranch fisheries of the Bali Strait [PDF]
, 2020 Elasmobranchs play an important role in the functioning of marine ecosystems and top-down control in food webs. However, overexploitation threatens elasmobranch populations worldwide.
Fahmi +6 more
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Oviparous elasmobranch development inside the egg case in 7 key stages. [PDF]
PLoS ONE, 2018 Embryological stages of oviparous elasmobranch during development can be difficult to identify, requiring magnification and/or fixation of an anaesthetized embryo.
Syafiq M Musa +2 more
doaj +1 more source
A new elasmobranch Karksiodus mirus gen. et sp. nov. from the Burtnieki Regional Stage, Middle Devonian of Estonia [PDF]
Estonian Journal of Earth Sciences, 2011 Teeth of a new elasmobranch Karksiodus mirus gen. et sp. nov. were discovered on two levels in the sandstones of the Karksi outcrop (South Estonia), corresponding to the Härma Beds, lower part of the Burtnieki Regional Stage (Givetian, Middle Devonian ...
Alexander Ivanov +2 more
doaj +1 more source
Scientific Reports, 2023 Elasmobranchs, which include sharks and batoids, play critical roles in maintaining the integrity and stability of marine food webs. However, these cartilaginous fish are among the most threatened vertebrate lineages due to their widespread depletion ...
Federico Maioli +7 more
doaj +1 more source
Frontiers in Marine Science, 2021 Elasmobranchs are one of the most endangered vertebrate groups on the planet, but despite this situation the use of reproductive techniques in elasmobranch conservation strategies has been scarce. Among these techniques, sperm preservation is a potential
Pablo García-Salinas +3 more
doaj +1 more source
Reproductive cycle, nutrition and growth of captive blue spotted stingray, Dasyatis kuhlii (Dasyatidae) [PDF]
, 2010 At Burgers' Ocean 7 male and 3 female blue spotted stingrays, Dasyatis kuhlii were born over a period of 4.5 years. This paper describes the experiences of the captive breeding results of this species. The first two young died within 2 days of birth. One
Janse, M., Schrama, J.W.
core +1 more source
PLoS ONE, 2020 Effective sampling of marine communities is essential to provide robust estimates of species richness and abundance. Baited Remote Underwater Video Stations (BRUVS) are a useful tool in assessment of fish assemblages, but research on the optimal sampling
Leanne M Currey-Randall +4 more
doaj +1 more source
Frontiers in Marine ScienceShinnecock Bay is a small, shallow lagoon and barrier beach estuary located in southeastern Long Island, New York, which has undergone a successful restoration effort in recent years.
Elizabeth T. Sciorilli +15 more
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