Results 31 to 40 of about 21,186 (271)
PeerJ, 2020 The occurrence and diversity of elasmobranchs from the Oligocene–Miocene boundary from Tropical America is poorly known in comparison with the paleodiversity from younger Neogene intervals of the region.
J. Carrillo-Briceño +5 more
semanticscholar +1 more source
Multiple paternity and hybridization in two smooth-hound sharks [PDF]
, 2015 Multiple paternity appears to be a common trait of elasmobranch mating systems, with its occurrence likely driven by convenience, due to females seeking to minimize the stress of male harassment.
Gristina, Michele +5 more
core +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
Shark genomes provide insights into elasmobranch evolution and the origin of vertebrates
Nature Ecology & Evolution, 2018 Modern cartilaginous fishes are divided into elasmobranchs (sharks, rays and skates) and chimaeras, and the lack of established whole-genome sequences for the former has prevented our understanding of early vertebrate evolution and the unique phenotypes ...
Yuichiro Hara +23 more
semanticscholar +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
Hatching Strategies in Monogenean (Platyhelminth) Parasites that Facilitate Host Infection [PDF]
, 2011 In parasites, environmental cues may influence hatching of eggs and enhance the success of infections. The two major endoparasitic groups of parasitic platyhelminths, cestodes (tapeworms) and digeneans (flukes), typically have high fecundity, infect more
Armstrong +13 more
core +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
21st century fisheries management: a spatio-temporally explicit tariff-based approach combining multiple drivers and incentivising responsible fishing [PDF]
, 2012 Kraak, S. B. M., Reid, D. G., Gerritsen, H. D., Kelly, C. J., Fitzpatrick, M., Codling, E. A., and Rogan, E. 2012. 21st century fisheries management: a spatio-temporally explicit tariff-based approach combining multiple drivers and incentivising ...
Codling, Edward A +6 more
core +1 more source
Spatial heterogeneity in fishing creates de facto refugia for endangered Celtic Sea elasmobranchs. [PDF]
PLoS ONE, 2012 The life history characteristics of some elasmobranchs make them particularly vulnerable to fishing mortality; about a third of all species are listed by the IUCN as Threatened or Near Threatened.
Samuel Shephard +3 more
doaj +1 more source
Environmental PollutionSubsea power cables cause electromagnetic fields (EMFs) into the marine environment. Elasmobranchs (rays, skates, sharks) are particularly sensitive to EMFs as they use electromagnetic-receptive sensory systems for orientation, navigation, and locating ...
Annemiek Hermans +3 more
semanticscholar +1 more source