Results 21 to 30 of about 27,048 (222)
Experimental harvesting of fish populations drives genetically based shifts in body size and maturation [PDF]
, 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
Revista de Saúde Pública, 2007 OBJETIVO: Avaliar a competência de peixes na predação de larvas de Aedes aegypti, em condições de laboratório. MÉTODOS: Foram testados machos e fêmeas de cinco espécies de peixe. Os testes de predação duravam cinco semanas para cada espécie.
Luciano Pamplona de Góes Cavalcanti +7 more
doaj +1 more source
Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei). [PDF]
, 2006 The Mexican tetra Astyanax fasciatus has evolved a variety of more or less color- and eyeless cave populations. Here we examined the evolution of the female preference for large male body size within different populations of this species, either surface-
Plath, Martin +4 more
core +1 more source
Journal of Biological Researches, 1999 The research aimed to know the influence of poecilia reticulata body size, in the feeding capacity on Culex quinquifasciatus larvae. The research was experimental method with Complete Random Design., each treatment with 5 replications.
Noer Moehammadi
doaj +1 more source
Intraspecific variability modulates interspecific variability in animal organismal stoichiometry. [PDF]
, 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
Can mixed-species groups reduce individual parasite load? A field test with two closely related poeciliid fishes (Poecilia reticulata and Poecilia picta). [PDF]
PLoS ONE, 2013 Predation and parasitism are two of the most important sources of mortality in nature. By forming groups, individuals can gain protection against predators but may increase their risk of being infected with contagious parasites.
Felipe Dargent +4 more
doaj +1 more source
Association patterns and foraging behaviour in natural and artificial guppy shoals [PDF]
, 2008 Animal groups are often nonrandom assemblages of individuals that tend to be assorted by factors such as sex, body size, relatedness and familiarity.
Chapman, Ben B. +7 more
core +1 more source
Neotropical Ichthyology, 2017 Headwater creeks are environments susceptible to invasion by non-native fishes. We evaluated the reproduction of 22 populations of the non-native livebearers guppy Poecilia reticulata, black molly Poecilia sphenops, Yucatan molly Poecilia velifera, green
André Lincoln Barroso Magalhães +1 more
doaj +1 more source
Cryptic MHC Polymorphism Revealed but Not Explained by Selection on the Class IIB Peptide-Binding Region [PDF]
, 2012 The immune genes of the major histocompatibility complex (MHC) are characterized by extraordinarily high levels of nucleotide and haplotype diversity. This variation is maintained by pathogen-mediated balancing selection that is operating on the peptide ...
Barcaccia +32 more
core +1 more source
Graellsia, 2023 El conocimiento acerca de la ictiofauna de los tramos altos del río Meta, uno de los principales afluentes del Orinoco, es aún poco conocida. En este trabajo se presenta el primer listado de peces registrados para el río Ocoa, a partir de 51 901 ...
Hernando Ramírez-Gil +2 more
doaj +1 more source