Results 51 to 60 of about 2,154 (173)
Freshwater 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
Karyotype of a Bagrid catfish, Mystus vittatus, from the freshwater system of Chidambaram, Tamil Nadu, India [PDF]
, 2010 Karyological characters of Mystus vittatus (Bagridae) in the freshwater system of Chidambaram were studied by examining metaphase chromosome spreads from the gill tissues.
Bhavani, K., Karuppasamy, R., Zutshi, B.
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The evolution of sensitive periods beyond early ontogeny: Bridging theory and data
Functional 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
Trematode Centrocestus formosanus Infection and Distribution in Ornamental Fishes in Mexico [PDF]
, 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
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Journal 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
Sexual harassment in live-bearing fishes (Poeciliidae): comparing courting and noncourting species [PDF]
, 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
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Exposure to low pH induces molecular level changes in the marine worm, Platynereis dumerilii [PDF]
, 2015 © 2015 Elsevier Inc. Fossil fuel emissions and changes in net land use lead to an increase in atmospheric CO 2 concentration and a subsequent decrease of ocean pH. Noticeable effects on organisms' calcification rate, shell structure and energy metabolism
Hardege, Jörg D. +3 more
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Pseudomale Behaviour and Spontaneous Masculinization in the All-Female Teleost Poecilia Formosa (Teleostei: Poeciliidae) [PDF]
Behaviour, 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
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Chemistry &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
Fluctuating salinity during development impacts fish life histories
Journal of Animal Ecology, Volume 94, Issue 9, Page 1848-1865, September 2025.Global freshwater ecosystems are increasingly threatened by salinisation. Salinity levels not only rise but also fluctuate due to extreme climate events and human activities. This study shows that stable elevated salinity accelerates reproduction in a freshwater fish, but fluctuations in salinity reduce reproductive output, with sex‐specific effects on
Meng‐Han Joseph Chung +4 more
wiley +1 more source