Results 21 to 30 of about 128 (103)

Rapid morphological change in multiple cichlid ecotypes following the damming of a major clearwater river in Brazil. [PDF]

open access: yesEvol Appl, 2020
Abstract While anthropogenic disturbances can have damaging effects on biodiversity, they also offer an opportunity to understand how species adapt to new environments and may even provide insights into the earliest stages of evolutionary diversification. With these topics in mind, we explored the morphological changes that have occurred across several
Gilbert MC   +3 more
europepmc   +2 more sources

Relação peso-comprimento e fator de condição de Cichla kelberi (Perciformes, Cichlidae) introduzidos em um lago artificial no Sudeste brasileiro = Length-weight relationship and condition factor for Cichla kelberi (Perciforms, Cichlidae) introduced in an artificial lake, southeastern Brazil

open access: yesActa Scientiarum: Biological Sciences, 2008
Analisou-se a relação peso-comprimento e o fator de condição de Cichla kelberi introduzido em um lago artificial do Sudeste brasileiro. Imaturos, fêmeas e machos possuem padrões diferentes quanto à relação peso-comprimento e quanto às variações sazonais ...
Leandro Muller Gomiero   +2 more
doaj   +1 more source

Invasive non-native species of fish in upper Paraná river Basin, Brazil: variations of caloric content in Cichla kelberi [PDF]

open access: yesNeotropical Ichthyology, 2012
The allocation of assimilated energy may be influenced by seasonal changes, growth, and reproductive cycle of fish, food consumption and environmental conditions.
Luis Alberto Espínola   +2 more
doaj   +6 more sources

Machine learning models accurately predict clades of proteocephalidean tapeworms (Onchoproteocephalidea) based on host and biogeographical data. [PDF]

open access: yesCladistics
Abstract Proteocephalids are a cosmopolitan and diverse group of tapeworms (Cestoda) that have colonized vertebrate hosts in freshwater and terrestrial environments. Despite the ubiquity of the group, key macroevolutionary processes that have driven the group's evolution have yet to be identified.
Vieira Alves P   +7 more
europepmc   +2 more sources

Featuring the ovarian morphological of Cichla kelberi Kullander & Ferreira, 2006 introduced in a Basin adjacent to the Lençóis Maranhenses National Park, Northeastern Brazil

open access: yesBrazilian Journal of Biology
Peacock bass (Ciclha kelberi) has been introduced in reservoirs in Brazil; however, information about its reproductive aspects and gonadal maturation remains scarce.
D. C. S. Mendes   +6 more
doaj   +2 more sources

Cichla kelberi Kullander, Ferreira 2006

open access: yes, 2018
Published as part of Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2) on page 93, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record ...
Ota, Renata Rúbia   +3 more
openaire   +1 more source

Small size today, aquarium dumping tomorrow: sales of juvenile non-native large fish as an important threat in Brazil

open access: yesNeotropical Ichthyology, 2017
Informal sales of large-bodied non-native aquarium fishes (known as “tankbusters”) is increasing among Brazilian hobbyists. In this study, we surveyed this non-regulated trade on Facebook® from May 2012 to September 2016, systematically collecting ...
André L. B. Magalhães   +6 more
doaj   +1 more source

Drastic reduction of the functional diversity of native ichthyofauna in a Neotropical lake following invasion by piscivorous fishes

open access: yesNeotropical Ichthyology, 2021
Biological invasions are leading several species to extinction and are projected as a main driver of biodiversity changes in lakes for this century.
Carla Patrícia de Souza   +3 more
doaj   +1 more source

Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil

open access: yesInternational Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
The aim of this work was to determine the reproductive tactic of the population of Moenkhausia intermedia, inhabiting the Capivara Reservoir, lower Paranapanema River. Four different stretches of the reservoir were selected, and sampling was carried out quarterly, in the period from 2001 to 2004.
Armando César Rodrigues Casimiro   +6 more
wiley   +1 more source

Molecular identification of Cichla (Perciformes: Cichlidae) introduced in reservoirs in Southern Brazil - doi: 10.4025/actascibiolsci.v35i2.10684

open access: yesActa Scientiarum: Biological Sciences, 2012
Species of peacock bass were introduced in several watersheds in South America and worldwide, mainly due to its importance to sport fishing, by being a fighting fish.
Boris Briñez   +4 more
doaj   +1 more source

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