Citas bibligráficas
Baltazar, P., (2010). Alimentación de Oncorhynchus mykiss (Walbaum, 1792 - Pisces, Salmonidae) "Trucha arco iris" durante dos inviernos (1989-1990) en los tributarios de primer orden del río Montecristo, Parque Nacional del Río Abiseo, San Martín [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/874
Baltazar, P., Alimentación de Oncorhynchus mykiss (Walbaum, 1792 - Pisces, Salmonidae) "Trucha arco iris" durante dos inviernos (1989-1990) en los tributarios de primer orden del río Montecristo, Parque Nacional del Río Abiseo, San Martín [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2010. https://hdl.handle.net/20.500.12672/874
@misc{sunedu/2873058,
title = "Alimentación de Oncorhynchus mykiss (Walbaum, 1792 - Pisces, Salmonidae) "Trucha arco iris" durante dos inviernos (1989-1990) en los tributarios de primer orden del río Montecristo, Parque Nacional del Río Abiseo, San Martín",
author = "Baltazar Guerrero, Paul Martín",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2010"
}
--- Rio Abiseo National Park is one of the most important regions protected in San Martin region, its purpose is to protect its untouchable resources of natural flora and fauna; the beautiful landscaping, the Abiseo river basin, their cultural resources and to promote scientific investigation. In the first order rivers that feed Abiseo river inhabit native and exotic species, including Astroblepus simonsii, Astroblepus spp. and Oncorhynchus mykiss (Walbaum 1792); the latter predominating in density and biomass. The objective of this work is to learn quantify and describe the diet and variances of Oncorhynchus mykiss (Walbaum 1792); considering the composition, proportion, diversity and feeding coincidence of different sizes and to determine the feeding habits of this species during 1989 and 1990 winters in the Montecristo first order river in National park Rio Abiseo, San Martin department. During July and August of 1989 and 1990 were collected 521 Oncorhynchus mykiss stomachs; in the Natural History Museum laboratory, using Sturges rule and sample curve of SOKHAL and ROLPH (1992) with a confidence limit of 99%, there were 408 stomachs selected of both sizes better represented in the sample (intervals of 70 mm): II (145.1 to 215.1 mm) and III (215.2 to 285.2 mm); with which the composition, abundance, biomass and taxa-prey frequency were determined. For the typing of the principal preys the Main Food Index – MFI (ZANDER, 1982) was employed, and to determine the grade of odontogenic feeding and inter-seasonal it was estimated with the Feeding Coincidence Index (ICA); with the diet composition it was determined the number of prey and diversity by size range and annual seasons.
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