Results 71 to 80 of about 99,234 (301)

‘It's not much, but it's honest work’: The status of environmental DNA analyses of fish biodiversity in southern Africa

open access: yesJournal of Fish Biology, EarlyView.
Abstract Environmental DNA (eDNA) biodiversity surveys have the power to transform the detection of species in natural environments, which is crucial for the conservation and management of freshwater, estuarine and marine environments. Globally, eDNA‐based analyses have increased significantly, with fishes being the most widely studied aquatic ...
Sophie von der Heyden
wiley   +1 more source

Caracterización de tilapia roja (Oreochromis sp.) con marcadores moleculares RAPD

open access: yesActa Agronómica, 2010
Se utilizó la técnica RAPD (amplificación al azar de ADN polimórfico) para el estudio de la diversidad genética de Oreochromis sp. (tilapia roja) en cinco piscícolas del Valle del Cauca (Colombia) y en la determinación del nivel de introgresión de las ...
Julieta Torres Jaramillo   +4 more
doaj   +2 more sources

Toxicity Study of Trichlorfon Insecticide Towards Nile Tilapia Oreochromis sp.

open access: yesJurnal Akuakultur Indonesia, 2007
The study was conducted to study toxicity and accumulation levels of trichlorofon in Nile tilapia (Oreochromis sp.) in weight of 2.54±0.79 g.  Experiment was diveded into three steps, i.e., (1) determination of toxicity range for 48 hours, (2 ...
E. Supriyono   +2 more
doaj   +1 more source

Comparative transcriptome profiles of four sexually size dimorphic fish

open access: yesScientific Data, 2022
Measurement(s) Transcripts expression profile Technology Type(s) Illumina HiSeq Factor Type(s) sex Sample Characteristic - Organism Misgurnus anguillicaudatus • Cynoglossus semilaevis • Pelteobagrus fulvidraco • Oreochromis ...
Li-Fei Luo   +4 more
doaj   +1 more source

Preliminary studies on bamboo floating cage and net enclosure culture in Kainji Lake basin [PDF]

open access: yes, 1985
The main objective of this paper is to introduce bamboo floating cage and net enclosure fish culture technology aimed at producing fish from almost all available inland bodies of water in Nigeria.
Otubusin, S.
core  

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert   +5 more
wiley   +1 more source

The effects of endosulfan on P450 1A gene expression, antioxidant enzymes activity and histopathological alterations in liver of Persian sturgeon (Acipenser persicus Borodin, 1987) [PDF]

open access: yes, 2016
The effects of 14 days exposure to sublethal concentrations of endosulfan (10 and 40 μg L−1) were investigated in mRNA- P450 1A expression, antioxidant enzymes (SOD and CAT) activity and histopathological alterations of Persian sturgeon (Acipenser ...
Khalili, M.   +3 more
core   +1 more source

First attempt at using a synthetic diet in short‐lived killifish, a vertebrate model of ageing

open access: yesJournal of Fish Biology, EarlyView.
Abstract Diet standardization of model organisms is crucial for experimental consistency and repeatability in laboratory research, yet laboratory fish often lack species‐specific, open‐formula standardized diets. This study aims to address this gap by testing the effect of macronutrient content on the performance of Nothobranchius furzeri, an ...
Jakub Žák, Milan Vrtílek
wiley   +1 more source

Salinity tolerance of the tilapias Oreochromis aureus, O. niloticus and an O. mossambicus X O. niloticus hybrid [PDF]

open access: yes
Studies ontogenetic changes in salinity tolerance in tilapias spawned and reared in freshwater using the indices of median lethal salinity, mean survival time and median survival time.
Huang, M.C., Kuo, C.M., Watanabe, W.O.
core  

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

open access: yesJournal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez   +4 more
wiley   +1 more source

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