Simeulue is a cluster of islands that rich of commercial fisheries in Aceh waters. Management of the fisheries products is highly related to species identification in order to ascertain the appropriate steps to manage the resources sustainably ...
Edwarsyah Edwarsyah +2 more
semanticscholar +1 more source
Relação entre peso do fígado, tamanho corporal e atividade reprodutiva em Atlantoraja cyclophora (Elasmobranchii: Rajidae: Arhynchobatinae) em águas oceânicas do Rio Grande do Sul, Brasil [PDF]
Samples of Atlantoraja cyclophora were obtained by bottom-trawling surveys on the outer continental shelf and upper slope of the Rio Grande do Sul State, Brazil, at depths between 100 and 300 m.
Oddone, Maria Cristina, Velasco, Gonzalo
core +1 more source
Polymorphism in Conservative Structures? The Scapulocoracoids in Skates Genus Psammobatis (Chondrichthyes, Arhynchobatidae) and the Validity of P. parvacauda [PDF]
Skeletal structures, especially the claspers, neurocrania, and scapulocoracoids have been widely used to characterize and describe new species of elasmobranchs.
Díaz de Astarloa, Juan Martín +4 more
core +1 more source
Reproduction in cartilaginous fish. A review of some reproductive adaptations [PDF]
En este trabajo se presenta una revisión sucinta de la morfología de algunas especializaciones reproductivas de Condrictios, que han contribuido a la supervivencia del grupo desde sus orígenes.
Galíndez, Elena Juana
core +2 more sources
Branching patterns of the afferent branchial arteries and their phylogenetic significance in rays (Batoidea). [PDF]
Soares KDA, Toledo-Piza M.
europepmc +1 more source
Los parásitos como marcadores biológicos para la discriminación de poblaciones de rayas (chondrichthyes: rajiformes) del Mar Argentino [PDF]
Esta Tesis tiene como objetivo principal: caracterizar las comunidades parasitarias de batoideos en el Atlántico Sudoccidental, determinando patrones geográficos a nivel regional, e identificar los procesos que los originan; con énfasis en su potencial ...
Irigoitia, Manuel
core
Revisão taxonômica da família Rajidae no Brasil (Chondrichthyes, Elasmobranchii, Rajiformes) [PDF]
A taxonomic review of the rajid fishes occurring in Brazilian waters were held. The taxonomic arrangement as well as recent captures of deep water specimens included in this study, increased in 37% the number of Brazilian Rajidae. New taxons and also new
Gomes, Ulisses Leite
core +1 more source
Reproductive Biology of the Tiger Shark in the Western Atlantic Ocean [PDF]
Although tiger sharks are an important apex predator in many ecosystems, little is known about their reproduction. The goal of this study was to determine the size-at-maturity and the reproductive seasonality of tiger sharks in the western Atlantic Ocean.
Shields, Chelsea
core +1 more source
Microanatomy of the female reproductive system of the viviparous freshwater whipray Fluvitrygon signifer (Chondrichthyes: Myliobatiformes: Dasyatidae). II. The genital duct. [PDF]
Somsap N, Srakaew N, Chatchavalvanich K.
europepmc +1 more source
The oviposition rate in captive Sympterygia bonapartii was reported. In a year period one female laid a total of 152 egg cases at a rate of 0.4 egg cases per day and a second one laid a total of 200 egg cases at a rate of 0.5 egg cases per day.
Jañez, Julieta A., Sueiro, Maria Cruz
openaire +1 more source

