Results 61 to 70 of about 14,511 (238)
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 +2 more
wiley +1 more source
Ecology and Evolution, 2022 Sharks play a key role in the structure and functioning of marine ecosystems. More ecological information is essential to implement responsible management and conservation actions on this fauna, particularly at a regional level for threatened species ...
Fernando Espino +5 more
doaj +1 more source
Reproductive cycle, nutrition and growth of captive blue spotted stingray, Dasyatis kuhlii (Dasyatidae) [PDF]
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 +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 +4 more
wiley +1 more source
The role of two anatomically separate olfactory bulbs in shark food odor tracking [PDF]
, 2017 Most sharks have well-developed olfactory systems and depend to a large degree on odor information to locate food, home and navigate, and possibly detect predators and mates.
Lohe, Adrienne
core +1 more source
ELASMOBRANCHS BALANCE UREA [PDF]
Journal of Experimental Biology, 2006 ![Figure][1] For most creatures, urea is a nasty toxin best got rid of, but for many elasmobranchs, it keeps them in balance with their salty environment. Yet despite this apparently amicable relationship, high tissue levels of urea still have nasty side effects on proteins.
openaire +1 more source
Environmental Toxicology, EarlyView.ABSTRACT A comprehensive screening of different environmental contaminants (total metals, thermostable metal fractions associated with detoxification, and persistent organic pollutants) was conducted in an endangered common thresher shark (Alopias vulpinus ) individual incidentally captured in southeastern Brazil.
Sidney Fernandes Sales Junior +10 more
wiley +1 more source
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, EarlyView.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +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 +3 more
core +1 more source
Thyrocalcitonin Studies in Elasmobranch Fish [PDF]
Zoologica Africana, 1969 Zoologica Africana 4(1): 95 ...
Louw, GN, Stahl, PD, Kenny, AD
openaire +2 more sources