Results 21 to 30 of about 1,928 (232)

Constraints upon the response of fish and crayfish to environmental flow releases in a regulated headwater stream network. [PDF]

open access: yesPLoS ONE, 2014
In dry climate zones, headwater streams are often regulated for water extraction causing intermittency in perennial streams and prolonged drying in intermittent streams.
Edwin T Chester   +6 more
doaj   +2 more sources

Efecto de la temperatura en la sobrevivencia embrionaria del puye Galaxias maculatus (Jenyns, 1842)

open access: greenLatin American Journal of Aquatic Research, 2013
Se evaluó el efecto de seis temperaturas constantes en la sobrevivencia embrionaria, periodo embrionario y periodo de eclosión de Galaxias maculatus de 7 a 22°C, en condiciones de laboratorio. Los resultados de la sobrevivencia embrionaria fueron: 90,6 ±
Juan Bariles   +3 more
doaj   +2 more sources

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

open access: yesEcol 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

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

open access: goldLatin American Journal of Aquatic Research, 2008
36
Pedro Jara‐Seguel   +3 more
openalex   +6 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

Deposition of Galaxias fasciatus eggs with Galaxias maculatus eggs at a tidal site [PDF]

open access: bronzeNew Zealand Journal of Marine and Freshwater Research, 1991
While measuring egg distribution of the intertidally spawning galaxiid fish, Galaxias maculatus , some noticeably larger eggs (1.86–2.2 mm diam.) were seen. In common with the smaller G. maculatus eggs (1.18–1.5 mm diam.), these eggs peaked in abundance
Charles P. Mitchell
openalex   +2 more sources

Acute toxicity of ammonia to juvenile inanga (Galaxias maculatus) [PDF]

open access: bronzeNew Zealand Journal of Marine and Freshwater Research, 1991
The toxic concentration of unionised ammonia (NH 3 ) was assessed for juvenile Galaxias maculatus by running a 96 h LC50 test. The 96 h LC50 concentration at 15°C and pH ≥ 8 was 1.60 mg NH 3 1 −
Jody Richardson
openalex   +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

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