Results 31 to 40 of about 644 (193)

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

open access: yesVet 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   +10 more
europepmc   +2 more sources

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

open access: yesJ 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   +3 more
europepmc   +2 more sources

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

open access: yesEcol 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   +4 more
europepmc   +2 more sources

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

open access: yesEcol 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   +4 more
europepmc   +2 more sources

Geographic variation in composition of metazoan parasite infracommunities in Galaxias maculatus Jenyns 1842 (Osmeriformes: Galaxiidae) in southern Chile (38-47° S)

open access: yesRevista Chilena de Historia Natural, 2020
Galaxias maculatus is an abundant freshwater fish species in Chilean continental waters where it plays important ecological functions, yet few parasitological records of this species exist in Chile and all of them cover a very limited geographic range ...
Mario George-Nascimento   +2 more
doaj   +1 more source

Effect of protein and lipids levels in a growth diet on adult whitebait Galaxias maculatus (Jenyns 1842)

open access: yesBrazilian Journal of Biology, 2021
Galaxias maculatus aquaculture objectives is to produce millions of eggs. Wild females are small (2 g), have quick sexual maturity and low mean fecundity (500 eggs/female), requiring larger fishes with higher fecundity.
R. Vega-Aguayo   +7 more
doaj   +1 more source

Influence of open and closed river systems on the migrations of two northern New Zealand populations of banded kokopu (Galaxias fasciatus) [PDF]

open access: yes, 2012
Otolith microchemical analysis by laser ablation inductively coupled mass spectrometry (ICP-MS) was used to investigate the migratory life histories of banded kokopu (Galaxias fasciatus) in two streams on the North Island of New Zealand.
Hicks, Brendan J., Tana, Raymond
core   +1 more source

Acanthostomoides apophalliformis (Trematoda: Cryptogonimidae) does not cause detectable mortality in Galaxias maculatus (Teleostomi: Galaxiidae)

open access: yesBrazilian Archives of Biology and Technology, 2006
The present study was conducted to determine if parasite induced mortality existed in a "puyen" population in Moreno Lake, southern Argentina. Data on both parasite abundance and degree of aggregation of parasite frequency distribution showed the absence
Jorge E. Revenga   +2 more
doaj   +1 more source

An Updating of Withebait Farming (Galaxias maculatus) in Chile [PDF]

open access: yes, 2012
The withebait Galaxias maculatus is an endemic species from Argentina and Chile (Cussac et al., 2004), and it is important in ecological webs in Argentinean and Chilean inland waters (Soto & Zuniga, 1991; Soto et al., 1994; Modenutti et al., 1998). This species has a maximum size of 17 cm and its migratory juvenile stage is transparent or “crystalline”
Alfonso Mardones   +1 more
openaire   +1 more source

La estructura de las comunidades de helmintos de Galaxias maculatus (Osmeriformes: Galaxiidae) en diferentes sitios de un lago de la Patagonia argentina

open access: yesEcología Austral, 2015
La variación espacial de las comunidades de helmintos en un sistema acuático puede atribuirse a diferentes factores bióticos y abióticos. En América del Sur, este tipo de estudios no ha sido realizado en ambientes de agua dulce.
María Fernández   +2 more
doaj   +1 more source

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