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| Feiden,Aldi; Signor,Altevir; Boscolo,Wilson Rogério; Reidel,Adilson; Coldebella,Anderson; Signor,Arcangelo Augusto; Klein,Sidnei. |
| The objective of this work was to evaluate the morphometric and allometric relations of Iguaçu surubim (Steindachneridion melanodermatum) cultivated in net cages. One hundred and twenty specimens were cultivated at a density of 50 fish per square meter in three 6 m³ net cages. Fish were fed three times a day with commercial feed. Thirty fish were evaluated at 60, 120, 180, and 360 days of cultivation as to the variables: total body, head, clean trunk, viscera, skin, and fin weight; total, standard, and head length; and head and body height. The Iguaçu surubim shows later development of the clean trunk and early development of the other body parts. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Steindachneridion melanodermatun; Body weight; Development; Processing; Weight class; Yield. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800055 |
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| Signor,Altevir; Signor,Arcangelo Augusto; Boscolo,Wilson Rogério; Reidel,Adilson; Klein,Sidnei; Feiden,Aldi. |
| This study evaluated the periphyton production on artificial substrates considering it as a source of low cost live food for fish. Blades of artificial substrates such as wood, black plastic, acrylic, fiberglass, ceramics and glass (all with 144cm2 blades, 24 for each substrate) were submerged 20.0cm below the water column for 35 days in the winter and 42 days in the summer. The blades were randomly installed in 200m3 pond and evaluated for the biomass production at different phases during the summer and winter. Four blades of each substrate were collected weekly, and the periphytic community was carefully scraped with a spatula and fixed in 4% formaldehyde. The periphytic biomass productivity was evaluated by artificial substrate area and per day. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microorganisms-food; Hatchery; Periphyton; Phytoplankton.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000100072 |
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