Results 41 to 50 of about 319 (166)

Evaluating the Potential for Citizen Science Divers to Monitor Fish Biodiversity Through Passive eDNA Collection

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
Passive capture of eDNA can be used as a tool for citizen scientist SCUBA divers to supplement visual surveys for marine species detection and is particularly useful for species that are rare or visually inaccessible to divers. ABSTRACT Environmental DNA (eDNA) marker gene sequencing, or metabarcoding, can be a powerful tool for monitoring marine ...
Theodora T. Mautz   +5 more
wiley   +1 more source

MOLECULAR CLONING AND QUANTITATIVE mRNA EXPRESSION OF SOX9 GENE IN GONADAL DEVELOPMENTAL PERIOD OF HYPOATHERINA TSURUGAE

open access: yesJournal of Experimental and Molecular Biology
Sox9 is a transcription factor of high mobility group (HMG) box family DNA binding domain. It plays a crucial role in gonadogenesis during embryonic developmental period. 1454 bp of sox9 mRNA transcript of Hypoatherina tsurugae (D. S.
Dilip Bej
doaj   +1 more source

Global Patterns and Gaps in Research on Salinity Tolerance of Inland Fishes

open access: yesFish 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

Promiscuous speciation with gene flow in silverside fish genus Odontesthes (Atheriniformes, Atherinopsidae) from south western Atlantic Ocean basins. [PDF]

open access: yesPLoS ONE, 2014
The present paper integrates phylogenetic and population genetics analyses based on mitochondrial and nuclear molecular markers in silversides, genus Odontesthes, from a non-sampled area in the SW Atlantic Ocean to address species discrimination and to ...
Graciela García   +6 more
doaj   +1 more source

Fine‐Scale Bioregionalization in a Complex Island System: A Freshwater Perspective From the Greater Antilles

open access: yesJournal of Biogeography, Volume 53, Issue 1, January 2026.
ABSTRACT Aim The isolated nature of islands makes them particularly vulnerable to climate change. The freshwater fishes of the Greater Antilles remain understudied and are further threatened by habitat fragmentation and the introduction of exotic invasive species.
Sheila Rodríguez‐Machado   +4 more
wiley   +1 more source

An ancient clonal lineage in the fish genus Poeciliopsis (Atheriniformes: Poeciliidae). [PDF]

open access: yesProceedings of the National Academy of Sciences, 1992
Genetic diversity in mtDNA was assessed within the unisexual (all female) hybridogenetic fish Poeciliopsis monacha-occidentalis and the two sexual species from which it arose. Results confirm that P. monacha was the maternal ancestor and that paternal leakage of P. occidentalis mtDNA has not occurred. Of particular interest is the high level of de novo
Quattro, JM, Avise, JC, Vrijenhoek, RC
openaire   +4 more sources

Revisiting the History of Ornamental Aquaculture in Europe to Understand the Benefits and Drawbacks of Freshwater Fish Imports

open access: yesReviews in Aquaculture, Volume 17, Issue 2, March 2025.
ABSTRACT Ornamental aquaculture and fishkeeping are very popular with millions of enthusiasts worldwide. The number of newly imported fish species for ornamental purposes grew slowly from World War I until the 1980s. It then exponentially increased until now with more than 7900 species and a large number of scientifically undescribed morphotypes.
Jindřich Novák   +16 more
wiley   +1 more source

eDNA Metabarcoding Analysis of Bony Fish Identification in Coastal Water of Gulf of Maine Using Nested Polymerase Chain Reaction of 12S rRNA Universal Primers

open access: yesEnvironmental DNA, Volume 6, Issue 6, November–December 2024.
ABSTRACT Ecosystems in coastal waters of Gulf of Maine (GOM) are undergoing environmental challenges in response to climate change and anthropogenic stressors. eDNA metabarcoding, a powerful tool for assessing the fish community structure, was used to identify fish communities in three types of GOM aquatic environments (sand, macroalgae, and eelgrass ...
Bo‐Young Lee   +4 more
wiley   +1 more source

Seasonal variation of parasitism in pejerrey Odontesthes bonariensis (Atheriniformes, Atherinopsidae) from La Viña reservoir (Córdoba, Argentina) Variação sazonal do parasitismo em Peixe-rei Odontesthes bonariensis (Atheriniformes, Atherinopsidae) no reservatório La Viña, Córdoba, Argentina

open access: yesRevista Brasileira de Parasitologia Veterinária, 2008
The pejerrey Odontesthes bonariensis is the most important freshwater fish of Argentina central region. The present study was conducted to describe the seasonal variation of parasitism in O.
Miguel Mancini   +5 more
doaj   +1 more source

First records of Hypoatherina temminckii (Bleeker, 1854), Samoan Silverside (Atheriniformes, Atherinidae), from Bidong Island, Terengganu, Malaysia [PDF]

open access: yesCheck List
Twelve specimens of Hypoatherina temminckii (Bleeker, 1854) were collected from Bidong Island, off Terengganu in the southern South China Sea in July 2025.
Daichi Sasaki   +2 more
doaj   +3 more sources

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