Results 31 to 40 of about 16,877 (294)

A new species of Paraberrapex Jensen, 2001 (Cestoda: Lecanicephalidea) from Squatina guggenheim Marini (Squatiniformes: Squatinidae) off Argentina [PDF]

, 2016
Paraberrapex atlanticus sp. n. (Cestoda, Lecanicephalidea) is described from the spiral intestine of the angel shark Squatina guggenheim Marini from coastal waters off Buenos Aires Province, Argentina. Paraberrapex atlanticus sp. n.
Ivanov, Veronica Adriana, Mutti, Leonardo Damián   +1 more
core   +1 more source

Molecular Identification of Shark Meat From Local Markets in Southern Brazil Based on DNA Barcoding: Evidence for Mislabeling and Trade of Endangered Species

Frontiers in Genetics, 2018
Elasmobranchs, the group of cartilaginous fishes that include sharks and rays, are especially vulnerable to overfishing due to low fecundity and late sexual maturation.
Fernanda Almerón-Souza, Christian Sperb, Carolina L. Castilho, Pedro I. C. C. Figueiredo, Leonardo T. Gonçalves, Rodrigo Machado, Larissa R. Oliveira, Victor H. Valiati, Nelson J. R. Fagundes   +8 more
doaj   +1 more source

Demographic Characteristics of Elasmobranch Fishes in the Khor Faridah Region (Abu Dhabi) Using a Stereo-BRUVS Approach

Diversity
The elasmobranch fauna was studied in the Khor Faridah region of Abu Dhabi, which is a mangrove-dominated inshore habitat historically reported to host a diversity of elasmobranch species.
Stephan Bruns, Shamsa Al Hameli, Aaron C. Henderson   +2 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

Regional hotspots and drivers of shark meat consumption in India

Conservation Science and Practice
Over one third of shark and ray (henceforth elasmobranch) species are threatened by global extinction. Overfishing, driven largely by human consumption of various products is a key threat to >95% of threatened elasmobranch species.
Divya Karnad, S. Narayani, Shruthi Kottillil, Sudha Kottillil, Trisha Gupta, Alissa Barnes, Andrew Dias, Y. Chaitanya Krishna   +7 more
doaj   +1 more source

A Long-Term Overview of Elasmobranch Fisheries in an Oceanic Archipelago: A Case Study of the Madeira Archipelago

Fishes
Elasmobranch species are considered a global conservation priority due to their susceptibility to fishing pressure. In the Madeira Archipelago, Northeastern Atlantic, most elasmobranch species are caught as bycatch in artisanal drifting longline fishery ...
Mafalda Freitas, Filipa Pinho-Duarte, Madalena Gaspar, Pedro Ideia, João Delgado, Sara C. Cerqueira, Ricardo Sousa   +6 more
doaj   +1 more source

Seeing through sedimented waters: environmental DNA reduces the phantom diversity of sharks and rays in turbid marine habitats

BMC Ecology and Evolution, 2021
Background Sharks and rays are some of the most threatened marine taxa due to the high levels of bycatch and significant demand for meat and fin-related products in many Asian communities.
Yin Cheong Aden Ip, Jia Jin Marc Chang, Kelvin K. P. Lim, Zeehan Jaafar, Benjamin J. Wainwright, Danwei Huang   +5 more
doaj   +1 more source

Primer registro de anisakis sp. (nematoda, anisakidae) l3 en la cavidad corporal deatlantoraja platana (chondrichthyes, rajidae) [PDF]

, 2015
En la presente nota se registra por primera vez el tercer estadio larval de Anisakis sp. infectando a Atlantoraja platana (Günther, 1880). Los hospederos fueron obtenidos en desembarques pesqueros de plantas de procesado de los puertos de San Antonio ...
Di Giacomo, Edgardo Ernesto, Galíndez, Elena Juana, Moya, Ana Carolina, Tanzola, Rubén Daniel   +3 more
core   +1 more source

Diving behaviour of the critically endangered tope shark Galeorhinus galeus in the Natural Reserve of Bahia San Blas, northern Patagonia [PDF]

, 2014
Background:Tope sharks (Galeorhinus galeus) aggregate in large numbers during spring and summer in closedgulfs and bays in northern Patagonia; these locations are considered the main nursery areas for the species.However, little is known about the ...
Cuevas, Juan Martín, Di Giacomo, Edgardo Ernesto, Garcia, Mirta Lidia   +2 more
core   +2 more sources

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