COLAUTTI Dario Cesar
congresos y reuniones científicas
Fish sampling in Argentine freshwater environments: lessons from 50 years of research and monitoring
BAIGÚN, C. R. M.; COLAUTTI, D. C.; MINOTTI, P.; BALBONI, L.; MAIZTEGUI, T.; GARCIA DE SOUZA, J. R.; LLOMPART, F.; SOLIMANO, P.; BRANCOLINI, F.
Congreso; The 7th World Fisheries Congress, Busan 2016; 2016
Standardized sampling methodologies are extremely important for assessing fish populations, particularly when they support valuable fisheries and therefore are required to evaluate how fish population changes over time to adopt management measurements. Attempts to standardize fish populations assessment in South America has been pioneered in Argentina since 1960. In this study we discuss observed results of several sampling programs by the application of different gears in rivers, lakes, reservoirs, marshes and floodplain lagoons and marshes across the country. We analyze how standardized sampling methods have been used for sampling different waterbody types across Argentina. We examine species vulnerability and its effects on species richness, catch per unit effort and length structure indices. In addition, common standardized gears used in northern hemisphere lakes are compared with those applied in Argentina, focusing on main salmonid and non-salmonid species. Based on reviewed benefits and limitations of standardized samplings performed in Argentina, we provide guidelines for applying standardized fishing methods in other South American countries with similar freshwater waterbodies.