Results 41 to 50 of about 8,650 (200)

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

Journal of Fish Biology, EarlyView.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

Passage performance of long-distance upstream migrants at a large dam on the Paraná River and the compounding effects of entry and ascent

Neotropical Ichthyology
This paper presents results of a fishway evaluation performed at the Engenheiro Sérgio Motta Hydroelectric Power Plant (known as Porto Primavera) - CESP, Paraná River, Brazil.
Ricardo Luiz Wagner, Sergio Makrakis, Theodore Castro-Santos, Maristela Cavicchioli Makrakis, João Henrique Pinheiro Dias, René Fuster Belmont   +5 more
doaj   +1 more source

Cross-amplification of heterologous microsatellite markers in Piracanjuba

Ciência Rural, 2017
: Brycon orbignyanus, popularly known in Brazil as piracanjuba, is a fish with great economic value but whose natural population drastically decreased in number during the last years.
Pedro Luiz de Castro, Ricardo Pereira Ribeiro, Silvio Carlos Alves dos Santos, Elenice Souza dos Reis Goes, Felipe Pinheiro de Souza, Angela Rocio Poveda-Parra, Lauro Vargas, Angela Maria Urrea-Rojas, Nelson Mauricio Lopera-Barrero   +8 more
doaj   +1 more source

Review of river fisheries valuation in Central and South America [PDF]

, 2008
Unlike Africa and Asia, where a large part of the population are heavily dependent upon fishing for their livelihoods, fishing for a living in the interior of Central and South America (CSA) remains a marginal occupation for all but the most isolated of ...
Bennett, E., Thorpe, A.
core   +1 more source

Role of glucose in enhancing life and potency of Cirrhinus mrigala spermatozoa during cryopreservation [PDF]

, 2015
Cryopreservation of fish gametes is an emerging technology and breeding with cryopreserved gametes is advancement in fish seed production. Success of cryopreservation is evaluated by the post - thaw motility of the spermatozoa, an for which energy is ...
Betsy, C. Judith, Kumar, J. Stephen Sampath, Rajagopalasamy, C. B. T.   +2 more
core   +2 more sources

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

Journal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck, Gésica Aparecida Santana Nascimento, Leiliane Campos Carvalho, Raíssa Cristina Dias Graciano, Rosiane de Paula Santos, Rafael Sachetto Oliveira   +5 more
wiley   +1 more source

New cases of supernumerary chromosomes in characiform fishes

Genetics and Molecular Biology, 1999
Supernumerary chromosomes were described for five species of Neotropical characiform fishes. These extra chromosomes were small, acrocentric and fully heterochromatic in Leporinus friderici from two different localities as well as in Leporinus sp., but ...
Paulo Cesar Venere, Carlos Suetoshi Miyazawa, Pedro Manoel Galetti Junior   +2 more
doaj   +1 more source

Paramphistomidae (Trematoda: Digenea) de peixes de água doce: dois novos gêneros da Colômbia e uma redescrição de Dadaytrema Oxycephala (Diesing, 1836) Travassos, 1934, da Amazônia [PDF]

Acta Amazonica, 1979
Resumo Dois novos gêneros e espécies de Paramphistomidae Fischoeder. 1901 (Trematoda: Digenea) dos tratos intestinais de peixes foram descritos, a saber: Colocladorchis ventrastomis a. gen., n. sp.
Vernon E. Thatcher
doaj   +1 more source

Ichthyological ecoregions of Argentina [PDF]

, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis, Montenegro, Marcelo J., Morgan, Cecilia C.   +2 more
core  

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source