Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development [PDF]
Neotropical Ichthyology, 2013 The present study describes the testicular maturation phases (associating the germ cells development and the morphological changes suffered by the germinal epithelium along the whole year), and the testicular morphology in the yellow peacock bass Cichla ...
Diógenes Henrique de Siqueira-Silva +3 more
doaj +5 more sources
Connectivity of a Conspicuous Layered Structure in the Dorsal Telencephalon of the Peacock Gudgeon, Tateurndina ocellicauda. [PDF]
J Comp NeurolTract tracing experiments of a layered structure in the dorsal telencephalon (Dx) in a gobiiform fish revealed intratelencephalic projections and projections from nuclei of the preglomerular complex. Injections into the dorsomedial (Dm) and dorsolateral (dDl) telencephalon showed that Dx and Dm are two distinct zones with their own connectivity ...
Gutjahr R +3 more
europepmc +2 more sources
Development of a non-lethal stomach content analysis method for freshwater eels: An empirical evaluation of the tube method for Anguilla marmorata. [PDF]
J Fish BiolAbstract Understanding the feeding habits of predatory fish is essential for unravelling food web structures and implementing conservation strategies in riverine ecosystems. However, conventional lethal stomach content analysis methods are not necessarily appropriate for long‐term dietary studies, particularly for threatened species, as they require ...
Maeda T, Itakura H, Wakiya R, Kimura S.
europepmc +2 more sources
Feed training of peacock bass (Cichla sp.) [PDF]
Revista Brasileira de Biologia, 2000 The Amazonian cichlid peacock bass (Cichla sp.) is a highly marketable food and sport fish, therefore a suitable species for aquaculture. However, because of its piscivorous feeding preferences, the species does not accept dry feeds voluntarily, turning its intensive culture difficult and costly.
MOURA, M. A. M. +2 more
openaire +4 more sources
Development of a Duplex Digital PCR and Validation on eDNA Water Samples for Monitoring of the Asian Swamp Eel (<i>Monopterus albus</i>/<i>Javanensis</i>) and Bullseye Snakehead (<i>Channa aurolineata</i>/<i>Marulius</i>) in Florida, USA, Freshwater Ecosystems. [PDF]
Ecol EvolThe Asian swamp eel and bullseye snakehead are two invasive organisms in Florida of ecological concern. In this study, a multiplex digital polymerase chain reaction (dPCR) assay is developed, optimized, and validated on water samples for environmental DNA (eDNA) analysis and monitoring. ABSTRACT Invasive species are a significant threat to a variety of
Bloch M +8 more
europepmc +2 more sources
Distinct, Depth-Stratified Communities of Heterotrophic, Mixotrophic, and Parasitic Dinoflagellates and Ciliates in the Subarctic Northeast Pacific Euphotic Zone. [PDF]
J Eukaryot MicrobiolABSTRACT Dinoflagellates and ciliates are important grazers of primary production in the Northeast Pacific but knowledge of their taxonomic composition and depth‐distribution is limited. These organisms also display a variety of heterotrophic feeding modes including heterotrophy, mixotrophy, and parasitism.
Jones EL +5 more
europepmc +2 more sources
Coexistence of endemic peacock basses (Cichla) in a Neotropical reservoir (Cichlidae: Cichliformes)
Neotropical Ichthyology, 2022 Abstract Peacock basses (genus Cichla) are predatory fish widely distributed across the Amazon, where two or more species normally coexist in a same drainage. The mechanisms that allow coexistence remain poorly understood, although these species share a number of functional traits and behavioral aspects.
Geovana de Souza Andrade +1 more
openaire +4 more sources
Acta Scientiarum: Biological Sciences, 2022 Species Cichla piquiti and Cichla kelberi are found in the Serra da Mesa reservoir, Goiás and are sedentary with diurnal habits. This study aimed to evaluate the magnitude and distribution of genetic variability in subpopulations of C.
Ruan Carlos Pires Faquim +4 more
doaj +1 more source
Acta 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
Impacts of river fragmentation on limiting individual dietary specialization of Amazonian predatory fish [PDF]
PeerJ, 2022 Individual dietary specialization is one of the factors that promotes variation in resource use at the individual level. Here we used stable isotope analysis of multiple tissues with different turnover rates to examine the degree of individual ...
Jamerson Aguiar-Santos +3 more
doaj +2 more sources