USE OF CONCRETE TANKS AS A PATTERN FOR RESEARCH WITH AQUATIC ANIMALS
Keywords:
Tanks, water quality, fishAbstract
Water quality determines the success or failure of fish researches. A series of rectangular concrete tanks covered with nylon nets were evaluated as a pattern for conduction essay with aquatic animals, when environment conditions must be the same. Physical and chemical characteristics of water were observed. The tanks were populated with ten juvenile pacu (Piaractus mesopotamicus) which were fed ad libitum twice a day. The experiment was carried out between November and February 1992/1993. In the middle of experiment five fishes were slaughtered in order to keep the biomass adequate until the end (87 days). Unsuitable limnologic conditions were detected in the lower waterflow tanks. The increased biomass and decreased waterflow were related to increased mortality and diseases. This kind of serial tanks building allows homogeneous environmental conditions and the waterflow was the parameter which must be carefully monitored.
KEY-WORDS: Tanks; water quality; fish.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.