Results 1 to 10 of about 14,695 (161)

Water hardness influenced variations in reproductive potential of two freshwater fish species; Poecilia reticulata and Betta splendens [PDF]

open access: yesBMC Research Notes, 2020
Objective Hardness of water in the form of CaCO3 affects reproductive potential in various fish species, differently. This study evaluates the effect of water hardness on growth and reproduction of two aquarium fishes, Poecilia reticulata (Ovo-viviparous
Abarna Krishnakumar   +2 more
doaj   +2 more sources

Ornamental aquaculture as a pathway for the introduction of non-native fish in coastal drainage of northeastern Brazil [PDF]

open access: yesActa Limnologica Brasiliensia, 2023
: Aim We present the first record of the introduction of three non-native ornamental fish species, resulting from ornamental aquaculture escapes on the Northeast Mata Atlântica hydrographic ecoregion, with information on the reproductive activity ...
Jefferson Saulo da Vitória Luduvice   +1 more
doaj   +1 more source

Evidence for cryptic speciation in directly transmitted Gyrodactylid parasites of Trinidadian guppies [PDF]

open access: yes, 2015
Cryptic species complexes are common among parasites, which tend to have large populations and are subject to rapid evolution. Such complexes may arise through host-parasite co-evolution and/or host switching.
Cable, Jo   +5 more
core   +7 more sources

Alternative reproductive tactics in male freshwater fish influence the accuracy of species recognition

open access: yesEcology and Evolution, 2021
Sexual conflict can result in coercive mating. Because males bear low costs of heterospecific mating, coercive males may engage in misdirected mating attempts toward heterospecific females. In contrast, sexual selection through consensual mate choice can
Shingo Fujimoto   +4 more
doaj   +1 more source

First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico

open access: yesCuadernos de investigación UNED, 2021
Introduction: Due to its colors, shape, size, and simplicity of care, the neotropical fish Poecilia reticulata (guppy) is popular in the aquarium trade. It is also valued as mosquito control and is now found in most of the world. Objective: To report its
Paola López Fuentes   +4 more
doaj   +1 more source

DNA Barcoding Ikan Introduksi Khas Telaga Sari, Kabupaten Pasuruan

open access: yesBiotropika: Journal of Tropical Biology, 2019
Telaga Sari terletak di Purwodadi, Kabupaten Pasuruan yang memiliki kelimpahan jenis ikan introduksi dari Famili Poeciliidae. Anggota Poeciliidae merupakan ikan yang berukuran kecil, live-bearers, memiliki dimorfi seksual dari segi ukuran tubuh dan pola ...
Dwi Anggorowati Rahayu   +2 more
doaj   +1 more source

Casanovas are liars : behavioral syndromes, sperm competition risk, and the evolution of deceptive male mating behavior in live-bearing fishes [version 2; referees: 2 approved, 1 approved with reservations] [PDF]

open access: yes, 2013
Male reproductive biology can by characterized through competition over mates as well as mate choice. Multiple mating and male mate choice copying, especially in internally fertilizing species, set the stage for increased sperm competition, i.e., sperm ...
Bierbach, David   +5 more
core   +2 more sources

Molecular and taxonomic characterisation of introduced specimens of Poecilia reticulata in the lower Paraguay River basin (Cyprinodontiformes: Poeciliidae)

open access: yesNeotropical Ichthyology, 2017
Poeciliids comprise around 300 species inhabiting the fresh and brackish waters of the Americas and Africa. Poecilia reticulata is native to Northeastern South America and Trinidad and Tobago. In this paper, introduced specimens of P.
Juan J. Rosso   +5 more
doaj   +1 more source

Intraspecific variability modulates interspecific variability in animal organismal stoichiometry. [PDF]

open access: yes, 2014
Interspecific differences in organismal stoichiometry (OS) have been documented in a wide range of animal taxa and are of significant interest for understanding evolutionary patterns in OS.
El-Sabaawi, Rana W   +5 more
core   +2 more sources

Experimental harvesting of fish populations drives genetically based shifts in body size and maturation [PDF]

open access: yes, 2013
Size-selective harvesting in commercial fisheries can induce rapid changes in biological traits. While experimental and wild harvested populations often exhibit clear shifts in body size and maturation associated with fishing pressure, the relative ...
Christine Dreyer   +9 more
core   +1 more source

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