Introduction: Despite having a rich and diverse native freshwater fish fauna, exotic species have been introduced to Panama since the 20th century. Objective: To report its presence in the fresh waters of Panama of a newly recorded exotic fish. Methods:
Rigoberto González Gutiérrez
doaj +1 more source
This study evaluated fish beta diversity in six headwater creeks located in the area affected by the largest ornamental aquaculture center implemented in the Minas Gerais State, southeastern Brazil.
André Lincoln B. Magalhães +5 more
doaj +1 more source
Invasion alert: new record of the exotic Gambusia holbrooki Girard, 1859 in the Puna Austral region, Northwestern of Argentina [PDF]
We report the first record of Gambusia holbrooki Girard, 1859 at elevations above 1,615 m in the Puna Austral, Provincia Catamarca, Argentina. This fish was introduced by intentional release.
Julieta Andreoli Bize, Luis Fernández
doaj +3 more sources
Effect of natural and synthetic androgen hormone on sex reversal of Nile Tilapia (Oreochromis niloticus) [PDF]
The present study aimed to produce a monosex population of all male Nile tilapia (Oreochromis spp.) using 17α-methyl testosterone and common carp testes (as a source of natural androgen). Trial was conducted into two consecutive phases, the first was fry
F. Asad +10 more
doaj +1 more source
Land use, associated eel production, and abundance of fish and crayfish in streams in Waikato, New Zealand [PDF]
The density and biomass of fish and crayfish, and the production of eels, was compared among streams in native forest, exotic forest, and pasture. Populations were estimated by multiple-pass electroshocking at 11 sites in hill-country streams in the ...
Cairns D., Hicks B. J., Hopkins C. L.
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First confirmed record of the blue tang, Acanthurus  coeruleus (Actinopterygii: Perciformes: Acanthuridae) in the Mediterranean [PDF]
A single specimen of a sub-adult specimen of the Atlantic species, Acanthurus coeruleus Bloch et Schneider, 1801, was collected in the Mediterranean coast of Israel.
D. Golani +2 more
doaj +3 more sources
Aquaculture production and its environmental sustainability in Thailand : challenges and potential solutions [PDF]
Though aquaculture plays an important role in providing foods and healthy diets, there are concerns regarding the environmental sustainability of prevailing practices.
Goethals, Peter +5 more
core +1 more source
Sustainable Management of Exotic Fish Biodiversity in Karnataka
Fish biodiversity, a significant part of the aquatic ecosystem, has been studied widely in India. However, the distribution and diversity of fish species have not been well-researched at the state and/or regional levels. Karnataka is bestowed with 8% of the country’s water resources, which are under extreme pressure because of unregulated population ...
Amie Chakma +2 more
openaire +3 more sources
Analisis Kelayakan Usahatani Exotic Fish Indonesia
ABSTRACTFarming feasibility is an effort to determine the feasibility level of a business seen from certain parameters or eligibility criteria. Farming can be said to be feasible if it is able to provide benefits to farmers and farmers obtain income that can cover all costs incurred for procuring factors of production.
openaire +1 more source
Food webs in forest and pasture streams in the Waikato region, New Zealand: A study based on analyses of stable isotopes of carbon and nitrogen, and fish gut contents. [PDF]
Stable isotopes of carbon (C) and nitrogen (N) were studied in 11 stream communities in the Waikato region of New Zealand. From comparisons of mean d13C and d15N values, food webs in the shaded, forest streams were clearly based on allochthonous material
Biggs B., Lester P. J., Main M. L.
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