Results 61 to 70 of about 2,291 (190)

Sulawesi Stream Fish Communities Disconnected From the Sea: Absence of Diadromous and Dominance of Exotic Species

open access: yesFreshwater Biology, Volume 70, Issue 12, December 2025.
ABSTRACT Barriers can profoundly alter the composition of stream communities. In the tropical island of Sulawesi, streams are inhabited by a diversity of secondary freshwater fishes, mostly diadromous species. Many streams, however, are modified by human activities for various reasons, involving the construction of barriers that impede fish migration ...
Letha Louisiana Wantania   +6 more
wiley   +1 more source

Sexual harassment in live-bearing fishes (Poeciliidae): comparing courting and noncourting species [PDF]

open access: yes, 2017
Sexual harassment by males has been reported from several live-bearing fishes (Poeciliidae) and has been shown to inflict costs on females. For example, poeciliid females have reduced feeding opportunities when accompanied by a male because females ...
Makowicz, Amber M.   +3 more
core  

Sex-specific local life-history adaptation in surface- and cave-dwelling Atlantic mollies (Poecilia mexicana) [PDF]

open access: yes, 2016
Cavefishes have long been used as model organisms showcasing adaptive diversification, but does adaptation to caves also facilitate the evolution of reproductive isolation from surface ancestors?
AP Hendry   +55 more
core   +1 more source

The evolution of sensitive periods beyond early ontogeny: Bridging theory and data

open access: yesFunctional Ecology, Volume 39, Issue 11, Page 2962-2973, November 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Sensitive periods, in which experiences have a large impact on phenotypic development, are most common early in ontogeny. Yet, they may also occur at later ontogenetic stages, such as adolescence.
Nicole Walasek   +2 more
wiley   +1 more source

Pseudomale Behaviour and Spontaneous Masculinization in the All-Female Teleost Poecilia Formosa (Teleostei: Poeciliidae) [PDF]

open access: yesBehaviour, 1992
Abstract Pseudosexual behaviour is a rare phenomenon associated with unisexuality in vertebrates. In the gynogenetic, all-female teleost Poecilia formosa, rare individuals occur that resemble males of closely related gonochoristic species both in behaviour and external morphology.
Schlupp, Ingo   +5 more
openaire   +1 more source

Trematode Centrocestus formosanus Infection and Distribution in Ornamental Fishes in Mexico [PDF]

open access: yes, 2009
Análisis de la distribución del Trematodo Centrocestus formosanus en peces de ornatoThe aim of this study was to determine the ornamental fish species affected by the metacercariae of the digenean trematode Centrocestus formosanus and its distribution in
ENRIQUEZ GOMEZ, RICARDO   +5 more
core   +1 more source

Cognitive and behavioral response of mosquitofish (Gambusia affinis) to environmental factors: Microplastics, predator cues, and detour design methods

open access: yesJournal of Fish Biology, Volume 107, Issue 4, Page 1139-1148, October 2025.
Abstract Urban stream syndrome is the collective term used to describe the physical and ecological degradation of streams draining urban lands that poses substantial threats to freshwater ecosystems. Among various consequences of urban expansion, microplastic pollution and shifts in predator–prey dynamics are prominent alterations to natural habitat ...
Kyndal Irwin   +2 more
wiley   +1 more source

High tandem repeat content in the genome of the short-lived annual fish Nothobranchius furzeri: a new vertebrate model for aging research [PDF]

open access: yes, 2009
BACKGROUND: The annual fish Nothobranchius furzeri is the vertebrate with the shortest known life span in captivity. Fish of the GRZ strain live only three to four months under optimal laboratory conditions, show explosive growth, early sexual maturation
Kathrin Reichwald   +15 more
core   +1 more source

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

open access: yesChemistry &Biodiversity, Volume 22, Issue 9, September 2025.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

Effect of salinity on gestation period, fry production, and growth performance of the sailfin molly (Poecilia latipinna lesueur) in captivity [PDF]

open access: yes, 2005
Breeding and growth trials were carried out with Poecilia latipinna in different salinities (0.5, 10, 15, 25, and 35‰) and effects on gestation period, fry production, and fry growth (75 days) were examined. Results showed that while P.
Balasubramanian, T.   +2 more
core  

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