Results 41 to 50 of about 14,323 (223)
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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Conservation Science and Practice, Volume 7, Issue 7, July 2025.This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando +11 more
wiley +1 more source
Fisheries statistics of Kainji Lake, northern Nigeria, Nov. 1994 - Dec. 1998 [PDF]
, 1999 Results are presented for the first 4 years data (1994-1998) of the Kainji Lake catch assessment survey, collected and analysed by the Nigerian-German Kainji Lake Fisheries Promotion Project.
Abiodun, J.A., du-Feu, T.A.
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A new species of Acestrocephalus (Characiformes: Characidae) from Venezuela.
Revista de biologia tropical, 2000 A new species of Acestrocephalus is described from 60 specimens collected in the Río Orinoco and Río Negro drainages, Venezuela. This species is distinguished. from aH other Acestrocephalus by the combination of the foHowing characters: anal rays, 29-36; 63-71 perforated scales on (he lateral line; 10-12 scales aboye and 9-12 below the lateral line; 39-
Lasso, Carlos A., Taphorn, Donald C.
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B chromosomes in Astyanax scabripinnis (Pisces, Characidae) [PDF]
Heredity, 1992 A karyotypic analysis was carried out using conventional staining and C-banding in 32 specimens of Astyanax scabripinnis (Pisces, Characidae) from Campos do Jordao (Sao Paulo State, Brazil). Twenty-eight individuals (87.5 per cent of the sample studied) showed 1–2 extra B-chromosomes, similar in size and shape (metacentrics) to pair 1 of the karyotype,
Lara Bellintani Salvador +1 more
openaire +1 more source
International Review of Hydrobiology, Volume 110, Issue 1, Page 5-12, June 2025.ABSTRACT This study evaluates land use and land cover (LULC) changes and their impacts on the fish community of a neotropical stream in the Sorocaba River basin, Brazil, from 2006 to 2023. The watershed experienced landscape changes over time, categorized into four periods: rural interventions, urban interventions, restorative interventions, and post ...
Nícholas de P. Nicomedes +8 more
wiley +1 more source
Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil. [PDF]
, 2007 The present study provides a species list of fish from the Marmelos River Area – BX044 in the states ofAmazonas and Rondônia in northern Brazil. During a Rapid Ecological Assessment (REA) performed in October andNovember of 2003, 133 fish species from ...
Camargo, M., Giarrizzo, T.
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Revue suisse de zoologie, 2000 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
María de las Mercedes. Azpelicueta +1 more
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The past history and present trends in the fisheries of Lake Chad [PDF]
, 1993 Lake Chad is a very large, shallow eutrophic lake shared by Chad, Nigeria, Niger and Cameroun. It supplies approximately 13% of Nigeria's inland fish. It however lies in an unstable ecological environment characterised by intermittent period of rainfall ...
Raji, A.
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Taxonomic revision of Galeocharax (Characiformes: Characidae: Characinae) [PDF]
Neotropical Ichthyology, 2017 ABSTRACT The taxonomy of Galeocharax, a genus of freshwater fishes distributed in most South American cis-Andean river systems, except the rio Negro, rio São Francisco and rio Xingu basins and the eastern drainages of Brazil, is herein revised. A total of 1229 specimens were examined from which 680 had meristic and morphometric data taken. Osteological
Giovannetti, Victor +2 more
openaire +4 more sources