Results 21 to 30 of about 165 (141)

New Insights into the Distribution, Physiology and Life Histories of South American Galaxiid Fishes, and Potential Threats to This Unique Fauna

open access: yesDiversity, 2020
South American galaxiids occupy both Patagonia and the ichthyogeographic Chilean Province, encompassing glacial Andean deep lakes, shallow plateau lakes, reservoirs, short Pacific rivers and long Atlantic rivers. The total fish fauna includes 29 species,
Víctor Enrique Cussac   +6 more
doaj   +1 more source

Spatiotemporal patterns of research on Southern Hemisphere amphidromous galaxiids: A semi–quantitative review

open access: yesAustral Ecology, Volume 48, Issue 5, Page 835-854, August 2023., 2023
Amphidromous galaxiids are found across the Southern Hemisphere, and given their migratory behaviour are vulnerable to a multitude of threats. Here we present the results of a semi‐quantitate review of peer‐review literature published on six species of amphidromous galaxiids over the last six decades.
Finnbar Lee   +5 more
wiley   +1 more source

Cephalic sensorial pores in galaxiid fishes from Chile (Osmeriformes: Galaxiidae)

open access: yesLatin American Journal of Aquatic Research, 2014
The number and arrangement of the cephalic pores of the lateral line in Chilean fishes of the family Galaxiidae, were studied. The study showed that Brachygalaxias differs from Galaxias, in the absence of mandibular pores and in pore number reductions in
Sylvia Sáez, Germán Pequeño
doaj   +1 more source

Complete mitogenomes of five ecologically diverse Australian freshwater fishes

open access: yesMitochondrial DNA. Part B. Resources, 2019
Complete mitochondrial genome sequences were determined for five species of Australian freshwater fishes, representing a diverse range of ecologies and life histories. Mitogenomes were sequenced and annotated for Craterocephalus stramineus (Atherinidae);
Daniel J. Schmidt, Carmel McDougall
doaj   +1 more source

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

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

Unusual sites of infection of Ligula intestinalis (Cestoda) plerocercoids in an intermediate host, freshwater bream Abramis brama

open access: yes, 2023
Journal of Fish Diseases, Volume 46, Issue 7, Page 791-793, July 2023.
Zdeněk Adámek   +2 more
wiley   +1 more source

Infections by Helminth Parasites in "Puyenes", Galaxias maculatus (Galaxiidae, Salmoniformes), from Southern Argentina with special reference to Tylodelphys barilochensis (Digenea, Platyhelminthes)

open access: yesMemorias do Instituto Oswaldo Cruz, 1999
The occurrence of Tylodelphys barilochensis, Acanthostomoides apophalliformis, Contracaecum sp. and Camallanus corderoi infecting Galaxias maculatus ("puyenes") was quantified for the first time in Lake Nahuel Huapi, southern Argentina. T.
J Revenga, P Scheinert
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

Two Germans, a Swede, and a Giant kōkopu: The Background to the Earliest Documented Description of a New Zealand Freshwater Fish

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 2, June 2026.
Galaxiids are a family of scaleless and mostly small freshwater fish which are distributed across the temperate latitudes of the southern hemisphere. The largest member of this family is the giant kōkopu (Galaxias argenteus), which has the added distinction of being the first New Zealand freshwater fish of any kind to be scientifically described.
James Braund
wiley   +1 more source

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