Results 11 to 20 of about 245 (154)

Cultivation of whitebait (Galaxias maculatus) in Chile [PDF]

Aquaculture Research, 2008
The growth of commercial aquaculture in Chile generated an income of $2.300 million USD in exports in 2005. Currently, 15 different species are cultivated commercially, of which seven are native; these had returns of 185 million USD. Among these native species is Galaxias maculatus (whitebait), which is endemic to Chile and figures significantly in ...
Alfonso Mardones, Rolando Vega, Francisco Encina   +2 more
exaly   +2 more sources

Development of a Trait-Based Risk Assessment to Minimise the Impacts of Trout on New Zealand Native Fishes. [PDF]

Ecol Evol
A trait‐based risk assessment framework was developed to identify New Zealand's native freshwater fish most vulnerable to the pressures of valued sports fisheries (trout). We further examine where the distributions between at‐risk species and trout are likely to overlap, providing priority locations for conservation managers to investigate further and ...
Coughlan A, Canning AD, Death RG.
europepmc   +2 more sources

Cryptic diversity within two widespread diadromous freshwater fishes (Teleostei: Galaxiidae) [PDF]

Ecology and Evolution
Identification of taxonomically cryptic species is essential for the effective conservation of biodiversity. Freshwater‐limited organisms tend to be genetically isolated by drainage boundaries, and thus may be expected to show substantial cryptic ...
Charlotte Jense, Mark Adams, Tarmo A. Raadik, Jonathan M. Waters, David L. Morgan, Leon A. Barmuta, Scott A. Hardie, Bruce E. Deagle, Christopher P. Burridge   +8 more
doaj   +2 more sources

Molecular Characterization of Eustrongylides sp. Infecting Channa punctata in Bangladesh. [PDF]

Vet Med Sci
In this study, a total of 137 medium‐sized Channa punctata (17.5 ± 2.5 cm) were collected from different locations of Jamalpur and Netrokona district, Bangladesh and microscopically identified as belonging to the genus Eustrongylides based on morphological characteristics.
Nibir SS, Dey AR, Rahman T, Suchona JT, Hossain S, Bushra SS, Juthy JP, Paul S, Tanwi JT, Tabassum T, Faruk MAR.   +10 more
europepmc   +2 more sources

Group swimming significantly decreases time to passage success for a galaxiid species. [PDF]

J Fish Biol
Abstract We conducted laboratory experiments to explore the potential benefits of group behaviour on passage performance for a small‐bodied migratory species, inanga Galaxias maculatus. An artificial velocity barrier was created to compare the fish passage success of groups of fish to solitary individuals.
Crawford RMB, Gee EM, Hicks BJ, Franklin PA.   +3 more
europepmc   +2 more sources

Nuclear DNA content in Galaxias maculatus (Teleostei: Osmeriformes: Galaxiidae) Contenido de ADN nuclear en Galaxias maculatus (Teleostei: Osmeriformes: Galaxiidae)

Latin American Journal of Aquatic Research, 2008
The nuclear DNA content (2C value) was determined in the commercial fish Galaxias maculatus (Galaxiidae) was determined by microdensitometry of erythrocyte nuclei after Feulgen staining; rainbow trout erythrocytes with a known 2C value were used as a ...
Pedro Jara-Seguel, Iván Valdebenito, Claudio Palma-Rojas, Christian Rebolledo   +3 more
doaj   +2 more sources

Interactive Effects of Copper Contamination and Salinization Across Multiple Genotypes of <i>Daphnia magna</i>. [PDF]

Ecol Evol
This study examined how Daphnia magna genotypes from US and French populations respond to copper and salinity stress, alone and in combination. US genotypes were generally more sensitive but showed improved survival under combined stress, indicating possible cross‐tolerance mechanisms.
Hernandez Villatoro AM, Piggott JJ, Ryan AP, Luijckx P, Carrier-Belleau C.   +4 more
europepmc   +2 more sources

Assessing Patterns and Risk to Chilean Freshwater Fish Distributions Using Multi-Species Occupancy Models. [PDF]

Ecol Evol
To advance our understanding of freshwater biodiversity in data‐limited systems, this study used multispecies occupancy models to predict species richness and individual species occupancy, providing critical insights for the conservation of these rapidly declining ecosystems.
Tracy EE, Habit E, Górski K, Fangue NA, Rypel AL.   +4 more
europepmc   +2 more sources

Teaching fish new tricks: Repeated exposure to a velocity barrier improves passage performance. [PDF]

PLoS ONE
Instream structures like culverts and dams can impede upstream fish migration, acting as environmental filters that only allow onward migration of individuals that can successfully pass them.
Rachel Mb Crawford, Eleanor M Gee, Brendan J Hicks, Katherine A Corn, Paul A Franklin   +4 more
doaj   +2 more sources

Habitat-use strategies of young barramundi (Lates calcarifer) in a heavily modified landscape. [PDF]

J Fish Biol
Abstract Barramundi (Lates calcarifer) is a facultatively catadromous species that migrates between saltwater and fresh water to complete its life cycle. Modified riverine landscapes may limit these migratory paths and alter the environmental cues that migratory fish rely on to trigger migration.
Munpholsri N, Gardiner NM, Waltham NJ, Leahy SM.   +3 more
europepmc   +2 more sources