Results 111 to 120 of about 246 (148)

Exploring the diversity of Brazilian camallanids: a checklist of the family Camallanidae (Nematoda) from Brazil with a new key to identification of the genera in the family. [PDF]

Parasitology
Silva LMO, Santos AN, Trindade LFF, Melo FTV.   +3 more
europepmc   +1 more source

Checklist of the ichthyofauna of the Rio Negro basin in the Brazilian Amazon. [PDF]

Zookeys, 2019
Beltrão H, Zuanon J, Ferreira E.
europepmc   +1 more source

Exceptional concentration of fish diversity in Yasuní National Park, Ecuador (Napo River Basin). [PDF]

Biodivers Data J
Escobar-Camacho D, Valdiviezo-Rivera J, Carrillo-Moreno C, Argüello P, Swing K.   +4 more
europepmc   +1 more source

The 5S rDNA family evolves through concerted and birth-and-death evolution in fish genomes: an example from freshwater stingrays. [PDF]

BMC Evol Biol, 2011
Pinhal D, Yoshimura TS, Araki CS, Martins C.   +3 more
europepmc   +1 more source

Sustainability issues of commercial non-timber forest product extraction in West Suriname. [PDF]

J Ethnobiol Ethnomed, 2018
van den Boog T, Bulkan J, Tansey J, van Andel TR.   +3 more
europepmc   +1 more source

Studying Chondrichthyans Using Baited Remote Underwater Video Systems: A Review. [PDF]

Animals (Basel)
Leonetti FL, Bottaro M, Giglio G, Sperone E.   +3 more
europepmc   +1 more source

Fishes of the Conambo River Basin, an unexplored area in the Ecuadorian Amazon: first annotated checklist. [PDF]

PeerJ
Valdiviezo-Rivera J, Sanchez F, Gualavisi-Cajas D, Nugra F, Anaguano-Yancha F, Chango B, Mashian J, Ríos-Touma B, Echevarria G.   +8 more
europepmc   +1 more source

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Predicting and contextualizing sensitivity to overfishing in Neotropical freshwater stingrays (Chondrichthyes: Potamotrygonidae)

Reviews in Fish Biology and Fisheries, 2022
Neotropical freshwater stingrays (Potamotrygonidae) are conspicuous components of the South American ichthyofauna, and may be regionally important as an economic resource. The smallest individuals are exploited in ornamental fisheries, while large individuals are caught in consumptive fisheries for their meat or liver oil.
Luis O. Lucifora, Pablo A. Scarabotti, Santiago A. Barbini   +2 more
openaire   +2 more sources

Systematic implications of brain morphology in potamotrygonidae (Chondrichthyes: Myliobatiformes)

Journal of Morphology, 2015
ABSTRACTThe gross brain morphology, brain proportions, and position of cranial nerves in all four genera (Potamotrygon, Plesiotrygon, Paratrygon, and Heliotrygon) and 11 of the species of the Neotropical stingray family Potamotrygonidae were studied to provide new characters that may have a bearing on internal potamotrygonid systematics.
João Pedro, Fontenelle, Marcelo R, de Carvalho   +1 more
openaire   +2 more sources

Morphology and Morphometry of the Ovaries and Uteri of the Amazonian Freshwater Stingrays (Potamotrygonidae: Elasmobranchii)

The Anatomical Record, 2016
ABSTRACTThe reproductive biology of South American freshwater stingrays (family Potamotrygonidae) is still poorly studied compared to other marine species. In the present study, we examined the gross anatomy and histology of six species of potamotrygonids from the Amazon basin and described the structural asymmetry of the ovaries and their relationship
Maria Isabel, da Silva, Maria Inês Braga, de Oliveira, Oscar Tadeu Ferreira, da Costa, Wallice Paxiúba, Duncan   +3 more
openaire   +2 more sources