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	Provedor de dados Neotropical Ichthyology (3) Biocell (1) Autor Colautti,Darío C. (4) Baigún,Claudio R. M. (2) Berasain,Gustavo E. (1) Campanella,Daniela (1) Grosman,Fabian (1) Gárriz,Ángela (1) Maiztegui,Tomás (1) Miranda,Leandro A. (1) Remes Lenicov,Mauricio (1) Solimano,Patricio J. (1) Somoza,Gustavo M. (1) Souza,Javier R. Garcia de (1) Mais... Palavra-chave Aquaculture (1) Condition (1) Fin rays (1) Fish growth (1) Fish plumpness (1) Fish tag (1) Fishery management (1) Floating cages (1) Growth rate (1) Odontesthes bonariensis (1) Otolith (1) Pampean lakes (1) Pejerrey (1) Scales (1) Standard weight (1) Zooplanktivorous (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2015 (1) 2013 (1) 2009 (1) 2006 (1) País Brazil (3) Argentina (1) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última A standard weight equation to assess the body condition of pejerrey Odontesthes bonariensis Biocell Colautti,Darío C.; Remes Lenicov,Mauricio; Berasain,Gustavo E.. We developed a standard weight equation Ws to aid in the analysis of pejerrey Odonthestes bonariensis body condition over time and across populations using the relative weight index Wr. Weight - length data were compiled from 73 populations of pejerrey (N=16.022) from the Argentine pampas region. We used the regression-line-percentile technique, which provides a 75th-percentile standard by length intervals of 10 mm, to develop the Ws equation. The proposed equation is log10 Ws=-5,267+3,163 log10 Lst; Ws is weight in grams and Lst is standard length in millimeters. This equation is proposed for use with pejerrey between 120 and 520 mm of Lst. Values for Wr calculated with the Ws equation did not consistently increase or decrease as function of fish length,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Standard weight; Pejerrey; Odontesthes bonariensis; Condition. Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000100017 Assessment of condition in pejerrey Odontesthes bonariensis (Atheriniformes: Atherinopsidae) populations: which index works best? Neotropical Ichthyology Baigún,Claudio R. M.; Colautti,Darío C.; Grosman,Fabian. The pejerrey Odontesthes bonariensis is the most important target species in temperate freshwater fisheries of Argentina, and assessment of condition has been a regular practice and common diagnostic tool. Most pejerrey fishery studies have used Fulton's (K) index, without testing whether underlying assumptions or requirements were met. We analyzed and contrasted the applicability of K, Kn and Wr indices to assess condition status in several pejerrey populations inhabiting Pampean lakes. Our results showed that whereas Wr and Kn displayed significant condition changes across length at some study lakes, Kn portrayed a small range of variation. We also noted that pejerrey maximum length and size structure strongly varied among populations probably due to the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish plumpness; Pampean lakes; Fishery management. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000300011 New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae) Neotropical Ichthyology Solimano,Patricio J.; Souza,Javier R. Garcia de; Maiztegui,Tomás; Baigún,Claudio R. M.; Colautti,Darío C.. The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing techniques. The aim of this study was to evaluate the possibility to achieve and maintain high growth rates of pejerrey throughout the rearing process by semi-intensive culture method . Four floating cages were installed in La Salada de Monasterio Lake and each one was stocked with 300 juveniles (10.22 ±0.38cm; 6.52 ±0.82g). From January through March all fish were exposed to natural zooplankton as food source, whereas from April to September two cages were supplied daily with... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquaculture; Fish growth; Floating cages; Growth rate; Zooplanktivorous. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100213 Osmotic induction marking with Alizarin Red S on juveniles of pejerrey, Odontesthes bonariensis (Atherinopsidae) Neotropical Ichthyology Campanella,Daniela; Gárriz,Ángela; Colautti,Darío C.; Somoza,Gustavo M.; Miranda,Leandro A.. Juveniles of pejerrey, Odontesthes bonariensis, were exposed to 0.1% Alizarin Red S (ARS) alone or with a previous immersion in 2.2% saline solution (Osmotic Induction, OI) to enhance the ARS marking method. Fish were marked in the field and immediately released in 1 m3 cages in "La Salada de Monasterio" lagoon, Chascomús, Buenos Aires , Argentina. After 73 days, clear marks were observed in the otoliths, caudal fin rays and scales with both treatments, being the intensity of the signal in the scales of OI+ARS treated fish higher. On the other hand, no marks were observed in the control group on the same structures. Approximately one year post-treatment (385 days), only marks in caudal fin rays were found clearly in OI+ARS treated fish. After this period,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fin rays; Fish tag; Otolith; Scales. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100095 Registros recuperados: 4 Primeira ... 1 ... Última

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