Results 51 to 60 of about 269 (156)

Continuous tooth replacement: what can teleost fish teach us?

open access: yesBiological Reviews, Volume 99, Issue 3, Page 797-819, June 2024.
ABSTRACT Most tooth‐bearing non‐mammalian vertebrates have the capacity to replace their teeth throughout life. This capacity was lost in mammals, which replace their teeth only once at most. Not surprisingly, continuous tooth replacement has attracted much attention. Classical morphological studies (e.g.
Ann Huysseune, P. Eckhard Witten
wiley   +1 more source

Visual and Chemical Prey Cues as Complementary Predator Attractants in a Tropical Stream Fish Assemblage

open access: yesInternational Journal of Zoology, Volume 2012, Issue 1, 2012., 2012
To date, little attention has been devoted to possible complementary effects of multiple forms of public information similar information on the foraging behaviour of predators. In order to examine how predators may incorporate multiple information sources, we conducted a series of predator attraction trials in the Lower Aripo River, Trinidad.
Chris K. Elvidge   +2 more
wiley   +1 more source

Redescription of Astyanax goyacensis Eigenmann, 1908 (Ostariophysi: Characiformes: Characidae)

open access: yesNeotropical Ichthyology
Astyanax goyacensis Eigenmann, 1908 is redescribed based on the holotype and 25 topotypes. The species belongs to the A. bimaculatus species complex, sharing with those species a black, horizontally ovate, humeral spot (the most conspicuous feature of ...
Valdener Garutti, Francisco Langeani
doaj   +1 more source

Dieta de Astyanax bimaculatus (Linnaeus, 1758) (Characiformes, Characidae), da área de influência do reservatório de Corumbá, Estado de Goiás, Brasil

open access: yesActa Scientiarum: Biological Sciences, 2008
Com o objetivo de estudar a alimentação de Astyanax bimaculatus realizaram-se-se, no período de março de 1996 a fevereiro de 1997, amostragens mensais na área de influência do reservatório de Corumbá, agrupadas neste trabalho em três biótopos: Corumbá ...
Izabel de Fatima Andrian   +2 more
doaj   +1 more source

Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA

open access: yesEnvironmental DNA, Volume 6, Issue 1, January–February 2024.
We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza   +4 more
wiley   +1 more source

Comparative cytogenetics in Astyanax (Characiformes: Characidae) with focus on the cytotaxonomy of the group

open access: yesNeotropical Ichthyology
Astyanax is a diverse group of Neotropical fishes, whose different forms occupy different environments. This great diversity is also reflected on cytogenetic aspects and molecular markers, which have repeatedly been demonstrated by cytogenetic studies ...
Renata Cristina Claudino de Oliveira Tenório   +4 more
doaj   +1 more source

Densidade de estocagem na produção de juvenis de duas espécies de lambaris em sistema de recirculação

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015
The aim of this study was to evaluate the stocking density for juveniles for two different species of characins (Astyanax bimaculatus and A. scabripinnis) in a recirculation system.
A. Jatobá, B. C. Silva
doaj   +1 more source

The effects of water temperature and hybridization on embryonic development and gametogenesis of two species of Amazonian tetra

open access: yesTheriogenology Wild, 2023
The study of embryonic development in fish and how water temperature affects the life stage in this group is of pivotal importance to support works that aim at the conservation, management, and recovery of endangered or high economic valuable species. It
Saynara Miranda   +10 more
doaj   +1 more source

Ichthyofauna of coastal lakes and the Igaraçu River in Ilha Grande, Delta do Parnaíba, Parnaíba, Piauí State, northeastern Brazil [PDF]

open access: yesCheck List, 2014
This study aims to provide a list of fish species from the Igaraçu River and some lakes of the lower Parnaíba River, Delta do Parnaíba, northeastern state of Piauí, Brazil.
Filipe Melo, Rennan Melo, Lucas Resende
doaj   +3 more sources

Characithecium spp. (Monogenea: Dactylogyridae) from Astyanax bimaculatus (Characiformes: Characidae) in Northeast Brazil, with Description of a New Species

open access: yesActa Parasitologica, 2021
To date, seven species of Characithecium Mendonza-Franco, Reina and Torchin, 2009 (Monogenea, Dactylogyridae) are valid, parasitizing mainly fishes of the family Characidae (Characiformes) in the Neotropical region. During a parasitological study of fishes in the Batateiras River and Carás stream, Ceará state, Brazil, two species of Characithecium were
Bruno Anderson Fernandes da Silva   +2 more
openaire   +4 more sources

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