Evaluación del rendimiento pesquero potencial de la República Argentina: I. Datos 1

A limnological and fish survey program was developed on 110 lakes and reservoirs of Argentina during the summers of 1984 to 1987. Here we exclude lakes without fish. Lakes and reservoirs were visited once each, except for six situated in Chubut Province that were studied seasonally over the course of two years. Here we present raw data used to evaluate the potential fish yield of Argentinian lakes and reservoirs. (Document contains 56 pages.)

Evaluación del rendimiento pesquero potencial de la República Argentina: II. Evaluación por regiones

A limnological and fish survey program was developed in 110 lakes and reservoirs of Argentina during the summers of 1984 to 1987. Lakes and reservoirs were visited once, except for six situated in the Chubut Province that were studied seasonally over the course of two years. The sampling surveys were performed by the "Instituto Nacional de Investigación y Desarrollo Pesquero" and the "Provincia de Chubut". Here we present preliminary results of potential fish yield assessment on a regional basis, using empirical models. (Document contains 11 pages.)

Evaluación del rendimiento pesquero potencial de la República Argentina: III. Edad y crecimiento de peces 1

Age and growth of populations of three fish species from sixteen lakes and reservoirs situated in the Patagonian Andean and the Patagonian Plateau Region (Argentina) were studied. They included two native species, the Patagonian smallmouth perch. (Percichthys trucha) and the Patagonian silverside (Patagonina hatcheri) and the introduced rainbow trout (Oncorhynchus mykiss). For the three species backcalculated lenght at age was obtained from scale readings. Von Bertalanffy growth curves were usually adjusted to data. For the three species, faster growth was related with lake productivity. (Document contains 38 pages.)

Documentos Históricos - IX. Serie Evaluación de los Recursos Naturales de la Argentina - CFI. Recursos Acuáticos Vivos: Iconografía ictiológica, de Tomás L. Marini y Rogelio B. López.

El Programa para el estudio y uso sustentable de la Biota Austral (Probiota), como un modesto homenaje, rescata a cuarenta y cinco años de su publicación la iconografía ictiológica de la obra Recursos Acuáticos Vivos incluída en la Serie Evaluación de los Recursos Naturales de la Argentina y editada por el Consejo Federal de Inversiones (CFI) en 1963. Para la ejecución de esta obra el CFI contrató a los doctores Tomás L. Marini y Rogelio B. López ; las ilustraciones de peces que se incluyen fueron preparadas por la Profesora Claudina Abella de López. Este es otro paso dirigido a la consolidación de nuestra disciplina, ya que manteniendo siempre el recuerdo vivo del pasado lograremos afianzar el presente, lo que nos permitirá planificar con fundamentos nuestro futuro. (PDF tiene 17 paginas.)

A review of the population structure of yellowfin tuna, Thunnus albacares, in the Eastern Pacific Ocean

ENGLISH: Since its inception in 1950 by agreement between the Republic of Costa Rica and the United States of America, the Inter-American Tropical Tuna Commission has been engaged in studies of the biology, ecology and population dynamics of yellowfin tuna in the eastern Pacific Ocean. Prime consideration has been given to the evaluation of the effects of fishing pressure on the yellowfin tuna in this area in order to estimate the maximum sustainable yield. A portion of the eastern Pacific has been defined by the Inter-American Tropical Tuna Commission (1963) as a regulatory area for yellowfin tuna (Figure 1). SPANISH: Desde su incepción en 1950, por un acuerdo entre la República de Costa Rica y los Estados Unidos de América, la Comisión Interamericana del Atún Tropical ha estado ocupada en los estudios de la biología, ecología y dinámica de las poblaciones del atún aleta amarilla en el Océano Pacífico Oriental. Se consideró primariamente la evaluación de los efectos de la presión de la pesquería sobre el atún aleta amarilla en esta área, para poder estimar el rendimiento máximo sostenible. Una parte del Pacífico Oriental ha sido definida por la Comisión Interamericana del Atún Tropical (1963), como área de reglamentación del atún aleta amarilla (Figura 1). (PDF contains 60 pages.)