Results 81 to 90 of about 26,825 (204)
Male Strategic Association With Mating Partners Under Varying Social Contexts in a Livebearing Fish
Ecology and Evolution, Volume 16, Issue 3, March 2026.We found that in halfbeaks, a shoaling fish species, males preferentially associated with an opposite sex pair (i.e., a female and a male) over rival males, but showed no preference when choosing between a pair and females. Overall, our data show that males followed informed association strategies that are primarily driven by mating opportunities ...
Arezo Shamsgovara +5 more
wiley +1 more source
Habituation of Predator Inspection and Boldness in the Guppy (Poecilia reticulata) [PDF]
, 2003 This study examined habituation of the predator inspection behavior in the guppy (Poecilia reticulata) and its relationship with boldness (open field locomotion).
Budaev, Dr. Sergey
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Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 2, Page 148-161, March 2026.ABSTRACT In fish, sex determination and gonadal development are controlled by various genetic and environmental factors. In this study, experiments were conducted on the estuarine mummichog (Fundulus heteroclitus) to investigate gonadal differentiation following exposure to the synthetic estrogen, 17α‐ethinylestradiol (EE2).
Ibrahim Chehade +5 more
wiley +1 more source
Ethology, Volume 132, Issue 3, Page 216-224, March 2026.This study investigated the behavioral response of common minnows (Phoxinus phoxinus) to repeated exposures of the sample phase of an object location task, and the influence of individual behavioral type on cognitive performance. The group exposed to the most sample trials were the only group that learned the task showing significant discrimination ...
Cairsty DePasquale +3 more
wiley +1 more source
An evaluation of Northern Florida Bay as a nursery area for red drum, Sciaenops ocellatus, and other juvenile and small resident fishes. [PDF]
, 2002 Red drum is one ofthe most popular species sought by anglers in Florida Bay, yet juveniles are rarely encountered. We evaluated Florida Bay as a nursery area for red drum by sampling for recently-settled late larvae in basin areas within the bay with an ...
Cheshire, Robin T. +2 more
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Global Patterns and Gaps in Research on Salinity Tolerance of Inland Fishes
Fish and Fisheries, Volume 27, Issue 2, Page 400-411, March 2026.ABSTRACT Freshwater salinization is an emerging threat impacting approximately one‐third of the world's freshwater bodies. However, the salinity tolerance of many inland fishes remains understudied, despite being a crucial factor in determining species distributions and fitness.
Carlos Cano‐Barbacil +4 more
wiley +1 more source
Revista Mexicana de Biodiversidad, 2012 We documented the distributional status of 27 exotic fish species in the inland waters of the Baja California Peninsula, Mexico, based on voucher specimens collected from 122 sites between 1977 and 2010, and on published records.
Gorgonio Ruiz-Campos +4 more
doaj +1 more source
Evidence for inbreeding depression in a species with limited opportunity for maternal effects [PDF]
, 2015 It is often assumed that mating with close relatives reduces offspring fitness. In such cases, reduced offspring fitness may arise from inbreeding depression (i.e., genetic effects of elevated homozygosity) or from post-mating maternal investment.
Head, Megan L. +2 more
core +1 more source
Neotropical 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
Ocular Morphology and Clinical Ophthalmic Parameters of Nile Tilapia Oreochromis niloticus
Veterinary Ophthalmology, Volume 29, Issue 2, March 2026.ABSTRACT Objective To describe the ocular morphological characteristics and establish clinical and ophthalmic reference standards for Nile tilapia. Animals Studied Fresh carcasses were used for diaphanization, optical and electron microscopy, and computed tomography analyses.
Dandara Franco Ferreira da Silva +12 more
wiley +1 more source