Results 71 to 80 of about 12,829 (213)
[A new fish species Hemibrycon (Characiformes: Characidae)].
Revista de biologia tropical, 2008 Hemibrycon pautensis (Characiformes, Characidae), a new fish species from Paute River, eastern Ecuador is described. Diagnostic characteristics: eight to nine branched rays in the dorsal fin (vs. six to seven), and 27 - 28 in the anal fin (vs. 16 - 26, except in H. dariensis which presents 22 - 27, in H. metae 26 - 31 and H.
César, Román-Valencia +2 more
openaire +2 more sources
A practical approach to the design, construction and operation of midwater trawl used in Kainji Lake, Nigeria [PDF]
, 1979 (19 page ...
Yaro, I.
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Citogenética molecular e evolutiva na família Characidae [PDF]
, 2021 Some species of the genus Moenkhausia have already been studied cytogenetically, and the presence of B chromosomes is considered an interesting feature of these fish. These dispensable supernumerary elements that do not recombine with the standard chromosomes and follow their own evolutionary mechanism vary in number, morphology and distribution, as ...
openaire +2 more sources
Ictiofauna do Rio Jurubatuba, Santos, São Paulo: um refúgio de diversidade em terras impactadas [PDF]
, 2010 Ichthyofaunistic surveys in the Atlantic Rainforest have been published in relatively few works, in spite of the major biological importance of this once vast biome which is rapidly vanishing due to disordered human population growth and natural ...
IGLESIAS, José Manoel Pires +1 more
core +1 more source
River Research and Applications, Volume 41, Issue 9, Page 1949-1958, November 2025.ABSTRACT Local and regional species diversity is influenced by historical factors, resource availability, biotic interactions, the presence of resources, and adequate environmental conditions. We evaluated the effects of local environmental variables and spatial structure on fish species richness and composition along sandy beaches of a Neotropical ...
Ronaldo Souza da Silva +8 more
wiley +1 more source
Responsible fisheries enhancing poverty alleviation of fishing communities of Lake Kainji [PDF]
, 2005 The attributes of responsible fisheries in enhancing Poverty Alleviation of fishing Communities of Lake Kainji were appraised. After impoundment in 1968, the catch per unit effort of fish continued on a downward trend, which suggested a decline in the ...
Abiodun, J.A. +5 more
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Actinopterygii, Characiformes, Characidae: Ectrepopterus uruguayensis (Fowler, 1943): New record for Argentina [PDF]
, 2013 Ectrepopterus uruguayensis Fowler was recently redescribed, with occurrence in lower tributaries of Río de la Plata and lower Río Uruguay, Uruguay. Herein its occurrence is extended and confirmed to Argentina, arroyo El Molino, in Uruguay Department ...
Carvalho, Fernando R. +1 more
core +2 more sources
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 8, August 2025.ABSTRACT Changes in land use and land cover severely impact the ecological structure of aquatic ecosystems and can lead to losses in fish populations. To further examine the cause and effect, the present study aimed to evaluate (1) differences in land use and cover among subbasins of the Vacaria, Brilhante, Dourados and Lower Ivinhema Rivers, (2 ...
Bianca de Oliveira Souza +3 more
wiley +1 more source
Fisheries statistical bulletin, Kainji Lake, northern Nigeria, 1997 [PDF]
, 1998 The bulletin presents summary tables and charts on levels of fishing activity, fishing effort, yields and economic values of yields for the fisheries of Kainji Lake, Nigeria for the year 1997.
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New host records and description of the egg of Anacanthorus penilabiatus (Monogenea, Dactylogyridae)
Memorias do Instituto Oswaldo Cruz, 2001 Anacanthorus penilabiatus is referred parasitizing the type-host Piaractus mesopotamicus (Serrasalmidae) and two new hosts, Colossoma macropomum and C.
MC Pamplona-Basilio, A Kohn, VA Feitosa
doaj +1 more source