Results 61 to 70 of about 478 (166)

In‐stream habitat suitability criteria for feeding inanga (Galaxias maculatus) [PDF]

open access: yesNew Zealand Journal of Marine and Freshwater Research, 2002
Abstract Inanga (Galaxias maculatus Jenyns) are the basis of an important recreational and commercial freshwater fishery that has declined over the past 100 years, probably because of habitat degradation in developed areas. Maintenance of suitable stream flows for inanga is one means of protecting the fishery.
openaire   +1 more source

Bases biológicas para el cultivo del puye Galaxias maculatus (Jenyns, 1842): una revisión

open access: yesLatin American Journal of Aquatic Research, 2013
Galaxias maculatus (Jenyns, 1842) es un pez gourmet de importancia comercial cuyas pesquerías están sobre-explotadas, siendo esencial el estudio de su biología para desarrollar su tecnología de cultivo (galaxicultura), que se encuentra en etapa piloto ...
Rolando Vega   +5 more
doaj  

Short‐term survival and growth of American Eel elvers marked with visible implant elastomer tags

open access: yesNorth American Journal of Fisheries Management, Volume 44, Issue 4, Page 826-834, August 2024.
Abstract Objective Visible implant elastomer (VIE) tags are commonly used as a cost‐effective tool for marking small fish, making them valuable in mark–recapture studies. It is crucial to quantify the impact of tagging procedures on fish survival to address inferential bias in mark–recapture studies.
Felix Eissenhauer   +5 more
wiley   +1 more source

Synergistic interactions within disturbed habitats between temperature, relative humidity and UVB radiation on egg survival in a diadromous fish.

open access: yesPLoS ONE, 2011
Anthropogenic impacts, including urbanization, deforestation, farming, and livestock grazing have altered riparian margins worldwide. One effect of changes to riparian vegetation is that the ground-level light, temperature, and humidity environment has ...
Michael J H Hickford, David R Schiel
doaj   +1 more source

Microestructura del ovario y ovogénesis en Galaxias maculatus (JENYNS, 1842) (TELEOSTEI: GALAXIIDAE)

open access: diamondBiologia Pesquera
Se hace una descripción histológica de ovarios de especímenes adultos de Galaxias maculatus capturados estacionalmente en el río Cautín, en el período junio 1987-mayo 1988. Se describe la organización microanatómica de los ovarios y se proponen ocho estadios de maduración para los ovocitos, de acuerdo a su forma, tamaño, características estructurales y
Santiago Peredo, Cristián Sobarzo
openalex   +3 more sources

Patrones idiosincráticos de diversidad genética de peces nativos del Río San Pedro (Cuenca del Río Valdivia), un sistema de la región glaciada del sur de Chile Idiosyncratic patterns of genetic diversity of native fishes from Río San Pedro (Valdivia River Basin, Región de los Ríos, Chile): a system from glaciated region in southern Chile

open access: yesGayana, 2012
Estudiamos los niveles y patrones de variabilidad genética de ocho especies de peces nativos de la cuenca del río San Pedro (cuenca del río Valdivia, Región de los Ríos, Chile), con el objetivo de evaluar diferencias microevolutivas en especies sometidas
Pedro F . Victoriano   +8 more
doaj  

Embryonic survival of Galaxias maculatus (Jenyns, 1842), under different prophylactic immersion bath

open access: yesLatin American Journal of Aquatic Research, 2017
The use of antifungals was assessed to improve embryo survival of Galaxias maculatus. Three treatments using formalin dose of 250 ppm, iodine dose of 100 ppm, and sea salt in doses of 30 ups were designed, and a control treatment under 10 of salinity water.
Juan Barile   +3 more
openaire   +2 more sources

Social and metabolic mediation of growth performance in a temperate estuarine fish

open access: yesFrontiers in Fish Science
Despite the importance of juvenile growth to lifetime fitness, high variability exists within many fish species where some individuals grow markedly faster than others.
Elizabeth C. Hoots   +4 more
doaj   +1 more source

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