Results 41 to 50 of about 4,287 (220)

IV.—A Revision of the American Cichlidæ [PDF]

open access: yesAnnals of the New York Academy of Sciences, 1893
n ...
Eigenmann, Carl H., Bray, William L.
openaire   +3 more sources

Fish distribution across altitudinal gradients in the Upper Paraguay River Basin: Implications for conservation in the Pantanal region

open access: yesConservation Science and Practice, EarlyView.
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

Freshwater fishes of the Waterberg aquatic ecoregion, South Africa: Diversity, taxonomic conflicts and conservation concerns

open access: yesJournal of Fish Biology, EarlyView.
Abstract Southern Africa is a region denoted by both high levels of fish diversity, some of it cryptic and unrecognised by current taxonomy, and severely threatened freshwater ecosystems. The Waterberg, a key aquatic ecoregion of the greater Limpopo River basin in South Africa, represents an area with high terrestrial conservation value but is lacking ...
Darragh J. Woodford   +7 more
wiley   +1 more source

Four new species of Cichlidogyrus (Platyhelminthes, Monopisthocotyla, Dactylogyridae) from Lake Victoria haplochromine cichlid fishes, with the redescription of C. bifurcatus and C. longipenis

open access: yesParasite
African cichlids are model systems for evolutionary studies and host-parasite interactions, because of their adaptive radiations and because they harbour many species of monogenean parasites with high host-specificity.
Gobbin Tiziana P.   +4 more
doaj   +1 more source

Hydrodynamic Responses of Fish Community Dynamics in Large‐Scale Morphologically Complex River Systems

open access: yesWater Resources Research, Volume 61, Issue 7, July 2025.
Abstract Large rivers exhibit dynamic and complex geomorphic features, supporting some of the most biodiverse and ecologically productive ecosystems. However, their aquatic ecology is increasingly threatened by human modifications to natural channel morphology.
Jiajian Qiu   +4 more
wiley   +1 more source

Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil. [PDF]

open access: yesCheck List, 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.
doaj   +4 more sources

Sistemática del pez Petenia splendida (Perciformes: Cichlidae) en el lago Petén Itzá, Guatemala

open access: yesRevista de Biología Tropical, 2011
El Lago Petén Itzá se ubica en la zona de usos múltiples de la Reserva de la Biosfera Maya, entre sus especies ícticas encontramos al pez blanco (Petenia splendida) de alto valor comercial.
Anaitté Méndez   +2 more
doaj   +2 more sources

Evaluating Environmental Predictors of Fish Community Composition in a Semi‐Arid River System Using a Model‐Based Approach

open access: yesEcology of Freshwater Fish, Volume 34, Issue 3, July 2025.
ABSTRACT Understanding how the environment shapes species distribution and affects biodiversity patterns is important in ecology and conservation. Environmental stressors like climate change and anthropogenic impacts may lead to a significant decline in aquatic biodiversity.
Mojgan Zare Shahraki   +6 more
wiley   +1 more source

Assessment of Fish Biodiversity in Oni River, Ogun State, Nigeria [PDF]

open access: yesInternational Journal of Agricultural Management and Development, 2011
For the purpose of sustainable exploitation of the fishery resourcesof Oni River, Ogun State, Nigeria, the fish biodiversity assessment was carried out. This was conducted by enumerating and identifying fish species composition, measuring the fish length,
Obe Bernardine Wuraola   +1 more
doaj  

Assessment of a Social Media‐Based Method for Determining Raptor Diet

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
This study mined social media as a citizen science method to reduce the time burden and biases associated with recording accurate diet information for predators. In total, 1985 prey observations were recorded of two Australian coastal raptors and were used to produce diet profiles that were compared by region, social media platform, and against other ...
Leo Biggs   +7 more
wiley   +1 more source

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