Journal
LATIN AMERICAN JOURNAL OF AQUATIC RESEARCH
Volume 39, Issue 3, Pages 607-612Publisher
UNIV CATOLICA DE VALPARAISO
DOI: 10.3856/vol39-issue3-fulltext-21
Keywords
Graus nigra; sea chubs; fishes; aquaculture; northern Chile
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Wild juveniles of Graus nigra were collected and acclimated for 30 days in ponds with open-water flow and ambient temperature; the specimens were given a formulated feed. Fish individuals were separated into six groups that were studied for 196 days. The average survival was 80%. The total length increased an average of 93.3% for large individuals (groups 4, 5, 6) and 125% for small ones (groups 1, 2, 3). The total weight showed an average increase of 434% for large fishes (groups 4, 5, 6) and 707% for small ones (groups 1, 2, 3). Graus nigra was found to tolerate captivity and handling, with a relatively high survival rate, making it an attractive species for aquaculture in Chile.
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