SciELO - Scientific Electronic Library Online

 
vol.18 issue2Expected role of psychologists in rural extension in the Argentine NortheastChanges in the physico-chemical properties of four lettuce ( Lactuca sativa L.) varieties during storage author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Ciencia y Tecnología Agropecuaria

Print version ISSN 0122-8706

Abstract

TORRES-BARRERA, Nixon Hernán  and  GRANDAS-RINCON, Isnardo Antonio. Estimation of waste generated by the production of rainbow trout in Lake Tota, Colombia. Corpoica cienc. tecnol. agropecu. [online]. 2017, vol.18, n.2, pp.247-255. ISSN 0122-8706.  https://doi.org/10.21930/rcta.vol18_num2_art:631.

In this study, the total waste from the production of rainbow trout, Oncorhynchus mykiss (Walbaum) (Salmoniformes: Salmonidae) in Lake Tota freshwater ecosystem, located in the Department of Boyacá, Colombia, and its potential impact on the lake was estimated. This economic activity has been carried out intensively since 2005 using submerged cages in the lake. With data obtained from the National Authority for Aquaculture and Fisheries (Aunap), the Autonomous Regional Corporation of Boyacá (Corpoboyaca), and the Chamber of Commerce of Sogamoso, fish farmers, their geographical location on the lake, production by these farms were identified, and with this information the amount of waste produced, including the amounts of nitrogen and phosphorus generated in this process was calculated. The results indicate that the lake is polluted due to intensive trout production. It is recommended to improve or modify trout production methods that will minimize water pollution.

Keywords : Aquaculture; Fish wastes; Eutrophication; Lake Tota (Colombia); Oncorhynchus mykiss; Sediment.

        · abstract in Spanish | Portuguese     · text in Spanish     · Spanish ( pdf )