Results 111 to 120 of about 3,591 (200)

Summer 1992 [PDF]

, 1992
https://nsuworks.nova.edu/occ_currents/1068/thumbnail ...
NSU Oceanographic Center
core   +1 more source

BIOECOLOGÃ�A DE LA RAYA DE AGUA DULCE Potamotrygon magdalenae (Duméril, 1865) (MYLIOBATIFORMES) EN LA CIÉNAGA DE SABAYO, GUAIMARAL, COLOMBIA BIOECOLOGY OF THE FRESHWATER STINGRAY Potamotrygon magdalenae (Duméril, 1865) (MYLIOBATIFORMES) FROM THE CIÉNAGA DE SABAYO, GUAIMARAL, COLOMBIA

Revista U.D.C.A Actualidad & Divulgación Científica, 2011
A pesar de la representatividad de Potamotrygon magdalenae en Colombia, por encontrarse a lo largo de la cuenca del río Magdalena y sus afluentes, esta raya no ha sido objeto de estudios previos, desconociéndose la mayor parte de sus aspectos bio ...
Herly Bibiana Ramos-Socha, Marcela Grijalba-Bendeck   +1 more
doaj  

Phylogeography and conservation genetics of the Amazonian freshwater stingray Paratrygon aiereba Müller & Henle, 1841 (Chondrichthyes: Potamotrygonidae)

Neotropical Ichthyology
The family Potamotrygonidae is monophyletic comprising three genera: Paratrygon Duméril, Potamotrygon Garman and Plesiotrygon Rosa, Castello & Thorson.
Renata G. Frederico, Izeni P. Farias, Maria Lúcia Góes de Araújo, Patricia Charvet-Almeida, José A. Alves-Gomes   +4 more
doaj   +1 more source

The reproductive biology of the school shark, Galeorhinus galeus Linnaeus 1758 (Chondrichthyes: Triakidae), from the Maghreb shore (southern Mediterranean) [PDF]

, 2005
The school shark, Galeorhinus galeus, is commonly captured off the Maghreb shore along the Algerian and Tunisian coasts of the southern Mediterranean.
Christian Capapé, Farid Hemida, Hamadi Méjri, Jamila Ben Souissi, Olivier Guélorget   +4 more
core   +1 more source

Physiological parameters of freshwater stingrays from the Uatumã River Basin, Amazon, Brazil

Anais da Academia Brasileira de Ciências
Abstract Knowledge of freshwater stingrays’ physiological parameters is essential for conserving elasmobranch diversity. This study aims to characterize the erythrogram and plasma biochemistry of freshwater stingrays from the Uatumã River basin for the first time. Specimens were captured in Presidente Figueiredo, São Sebastião do Uatumã, and Itapiranga,
MARIA FERNANDA S. GOMES, MAIKO WILLAS S. RIBEIRO, CRISTIANE C. GUIMARÃES, TIAGO C. NÓBREGA, THAYSON L. PINTO, RAYANA M. PAIXÃO, ADRIENE NÚZIA A. SANTOS, PAULO HENRIQUE R. ARIDE, ADRIANO T. DE OLIVEIRA   +8 more
openaire   +3 more sources

Insectivory in Potamotrygon signata (Chondrichthyes: Potamotrygonidae), an endemic freshwater stingray from the Parnaíba River basin, northeastern Brazil

Brazilian Journal of Biology
Potamotrygon signata is an endemic freshwater stingray species in the Parnaíba River basin, Brazil. After its original description, only citations in systematic lists were recorded in the literature and the biology of the species remains unknown ...
G. Moro, P. Charvet, RS. Rosa
doaj   +1 more source

Feeding habits and trophic level of Himantura gerrardi (Elasmobranchii; Dasyatidae) in northern Oman Sea: effects of sex and size class [PDF]

, 2018
The feeding habits and trophic level of Himantura gerrardi were studied according to sex and size classes of 80 individuals obtained using bottom trawl between May and December 2014 from the Oman Sea.
Fatemi, S.M.R., Mortazavi, M.S., Rastgoo, A.R., Valinassab, T.   +3 more
core  

Levels of Total Mercury and Health Risk Assessment of Consuming Freshwater Stingrays (Chondrichthyes: Potamotrygoninae) of the Brazilian Amazon. [PDF]

Int J Environ Res Public Health, 2023
Oliveira AT, Rodrigues PA, Ramos Filho AM, Gomes MFDS, Liebl ARDS, de Pinho JV, Aride PHR, Conte-Junior CA.   +7 more
europepmc   +1 more source

Temporal Changes in a Tropical Nekton Assemblage and Performance of a Prawn Selective Gear [PDF]

, 1995
The temporal variation of components of a moderately diverse (H=1.46) tropical estuarine fish assemblage (long. 146°30'E, lat. 8°45'S) was directed by salinities that had been determined by local oceanographic and probably topographic conditions.
Aitsi, Joshep B., Kan, Ting Tien, Kasu, John E., Matsuoka, Tatsuro, Nagaleta, Henry L.   +4 more
core  

Ecotoxicology of Potamotrygoninae freshwater stingrays: bioaccumulation, toxicological risks, and conservation implications

Frontiers in Marine Science
Obligate freshwater stingrays of the Potamotrygoninae subfamily are endemic to South America and confined to freshwater systems heavily impacted by anthropogenic activities. These pressures often lead to habitat degradation, with unknown impacts on these species’ physiology, behavior, ecology, and survival.
Neuciane Dias Barbosa, Neuciane Dias Barbosa, Natascha Wosnick, Natascha Wosnick, Natascha Wosnick, Ana Paula Chaves, Eloísa Pinheiro Giareta, Renata Daldin Leite, Patricia Charvet, Rachel Ann Hauser-Davis   +9 more
openaire   +2 more sources