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1. Thermal ecology of Galaxias platei (Pisces, Galaxiidae) in South Patagonia: perspectives under a climate change scenario

Author:
Barrantes, María Eugenia; Lattuca, María Eugenia; Vanella, Fabián Alberto; Fernández, Daniel Alfredo
Source:
Hydrobiologia 2017 v.802 no.1 pp. 255-267
ISSN:
0018-8158
Subject:
Galaxias platei,   etc   ; acclimation; climate change; cold tolerance; energy; freshwater fish; heat tolerance; homeostasis; indigenous species; juveniles; latitude; metabolism; temperature; Andes region; Argentina;     Show all 15 Subjects
Abstract:
... The native freshwater fish Galaxias platei shows a wide latitudinal distribution in Patagonia, being found on both sides of the Andes. Currently, climate change poses one of the main threats to native fish, and its effects are appearing faster in high southern latitudes. The aim of this work was to analyse the possible effects of climate change in G. platei through its thermal responses. We hypoth ...
DOI:
10.1007/s10750-017-3275-3

2. Invasive trout affect trophic ecology of Galaxias platei in Patagonian lakes

Author:
Ortiz-Sandoval, Juan; Górski, Konrad; Sobenes, Catterina; González, Jorge; Manosalva, Aliro; Elgueta, Anaysa; Habit, Evelyn
Source:
Hydrobiologia 2017 v.790 no.1 pp. 201-212
ISSN:
0018-8158
Subject:
Galaxias platei,   etc   ; Oncorhynchus mykiss; Salmo trutta; carbon; diet; indigenous species; juveniles; lakes; muscle tissues; nitrogen; ontogeny; piscivores; population dynamics; trophic levels; trout; Argentina; Chile;     Show all 17 Subjects
Abstract:
... The introduction of predatory salmonids such as rainbow trout Oncorhynchus mykiss Walbaum 1792, and brown trout Salmo trutta Linnaeus 1758, has been responsible for declining populations of native galaxiids in the Southern Hemisphere. The empirical evidence of mechanisms of this decline are, however, scarce. Currently, trout are the most common species in Chilean Patagonia. Galaxias platei Steinda ...
DOI:
10.1007/s10750-016-3030-1

3. A Community‐Level, Mesoscale Analysis of Fish Assemblage Structure in Shoreline Habitats of a Large River Using Multivariate Regression Trees

Author:
Wilkes, M. A.; Maddock, I.; Link, O.; Habit, E.
Source:
River research and applications 2016 v.32 no.4 pp. 652-665
ISSN:
1535-1459
Subject:
Galaxias platei,   etc   ; Salmonidae; community structure; environmental factors; fish; habitats; hydroelectric power; models; power plants; rivers; shorelines; streams; Chile;     Show all 13 Subjects
Abstract:
... The mesoscale (10⁰–10² m) of river habitats has been identified as the scale that simultaneously offers insights into ecological structure and falls within the practical bounds of river management. Mesoscale habitat (mesohabitat) classifications for relatively large rivers, however, are underdeveloped compared with those produced for smaller streams. Approaches to habitat modelling have traditiona ...
DOI:
10.1002/rra.2879

4. Echoes of a distant time: effects of historical processes on contemporary genetic patterns in Galaxias platei in Patagonia

Author:
Vera‐Escalona, Iván; Habit, Evelyn; Ruzzante, Daniel E.
Source:
Molecular ecology 2015 v.24 no.16 pp. 4112-4128
ISSN:
0962-1083
Subject:
Galaxias platei,   etc   ; Bayesian theory; freshwater fish; gene flow; lakes; landscapes; population size; Andes region; Argentina;     Show all 9 Subjects
Abstract:
... Interpreting the genetic structure of a metapopulation as the outcome of gene flow over a variety of timescales is essential for the proper understanding of how changes in landscape affect biological connectivity. Here we contrast historical and contemporary connectivity in two metapopulations of the freshwater fish Galaxias platei in northern and southernmost Patagonia where paleolakes existed du ...
DOI:
10.1111/mec.13303

5. Invasive salmonids and lake order interact in the decline of puye grande Galaxias platei in western Patagonia lakes

Author:
Correa, Cristian; Hendry, Andrew P.
Source:
Ecological applications 2012 v.22 no.3 pp. 828-842
ISSN:
1051-0761
Subject:
Galaxias platei,   etc   ; Oncorhynchus mykiss; Salmo trutta; altitude; anthropogenic stressors; colonizing ability; data collection; deforestation; ecosystems; gillnets; hydrology; indigenous species; lakes; minnows; morphometry; refuge habitats; spawning; streams; structural equation modeling; traps; uncertainty; Argentina; Canada; Chile;     Show all 24 Subjects
Abstract:
... Salmonid fishes, native to the northern hemisphere, have become naturalized in many austral countries and appear linked to the decline of native fishes, particularly galaxiids. However, a lack of baseline information and the potential for confounding anthropogenic stressors have led to uncertainty regarding the association between salmonid invasions and galaxiid declines, especially in lakes, as t ...
DOI:
10.1890/11-1174.1

6. Reproduction of landlocked Aplochiton zebra Jenyns (Pisces, Galaxiidae)

Author:
Lattuca, M.E.; Brown, D.; Castiñeira, L.; Renzi, M.; Luizon, C.; Urbanski, J.; Cussac, V.
Source:
Ecology of freshwater fish 2008 v.17 no.3 pp. 394-405
ISSN:
0906-6691
Subject:
Galaxias platei,   etc   ; Aplochiton zebra; Galaxias maculatus; eggs; evolution; fecundity; life history; oocytes; otoliths; risk; spawning; tetracycline; zebras; Argentina;     Show all 14 Subjects
Abstract:
... Life-history studies comparing landlocked versus diadromous populations reveal factors associated with life-history evolution under different scenarios. We describe several aspects of spawning and development of landlocked Aplochiton zebra in Patagonia (Argentina) based on the presence of eggs, the gonadal development, the analysis of otolith daily growth increments validated by tetracycline marki ...
DOI:
10.1111/j.1600-0633.2008.00292.x

7. Latitudinal and ecological correlates of morphological variation in Galaxias platei (Pisces, Galaxiidae) in Patagonia

Author:
Carrea, Cecilia; Barriga, Juan P.; Cussac, Victor E.; Ruzzante, Daniel E.
Source:
Biological journal of the Linnean Society 2006 v.87 no.1 pp. 69-82
ISSN:
0024-4066
Subject:
Galaxias platei,   etc   ; Bayesian theory; Galaxias maculatus; environmental impact; euphotic zone; evolutionary biology; fish; gene flow; lakes; landscapes; larvae; phenotypic variation; predators; streams; Antigua and Barbuda; Argentina;     Show all 16 Subjects
Abstract:
... Understanding the influence of landscape features on population differentiation is fundamental to evolutionary biology studies. We examined spatial patterns of genetic and phenotypic variability among Galaxias maculatus populations in a complex of four postglacial lakes in northwestern Patagonia differing in size and connectivity among them. A hierarchical Bayesian analysis grouped the individuals ...
DOI:
10.1111/j.1095-8312.2006.00556.x