Results 21 to 30 of about 245 (154)

Otolith microchemistry and diadromy in Patagonian river fishes [PDF]

open access: yesPeerJ, 2019
Coastal habitats in Chile are hypothesized to support a number of diadromous fish species. The objective of this study was to document migratory life histories of native galaxiids and introduced salmonids from a wide latitudinal range in Chilean ...
Dominique Alò   +4 more
doaj   +3 more sources

Interactions Between Non-Native Western Mosquitofish and Native Bluegill Sunfish: Mesocosm Experiments. [PDF]

open access: yesEcol Evol
Native Bluegill Sunfish had important competitive impacts on invasive Western Mosquitofish and also had intraguild predation effects that prevented successful recruitment of Western Mosquitofish. In contrast, Bluegill Sunfish were affected by intraspecific effects more than by interspecific effects from Western Mosquitofish.
Rettig JE   +3 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

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

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

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

Nuclear DNA content in Galaxias maculatus (Teleostei: Osmeriformes: Galaxiidae)

open access: yesLatin American Journal of Aquatic Research, 2008
36
Jara-Seguel, Pedro   +3 more
openaire   +4 more sources

Fishways provide catchment‐scale improvements to common galaxias ( Galaxias maculatus ) upstream of a barrier in south‐eastern Australia

open access: yesNew Zealand Journal of Marine and Freshwater Research, 2023
ABSTRACT The common occurrence of dams is a major threat to riverine fish communities globally and a common remediation technique for fragmented fish communities is fishway construction. Demonstrating the effectiveness of this technique on impacted species is required to rationalise or improve management practices.
Frank Amtstaetter   +4 more
openaire   +1 more source

Egg cannibalism by inanga ( Galaxias maculatus ) [PDF]

open access: yesNew Zealand Journal of Marine and Freshwater Research, 2003
Abstract Egg cannibalism by inanga ( Galaxias maculatus ) was found to occur immediately after spawning. Spent and immature inanga from a school of 335 fish consumed between 0 and 51 eggs each.
openaire   +1 more source

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