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Otiniano, Y., (2016). DIVERSIDAD ICTIOLÓGICA DE LA CUENCA BAJA DEL RIO MOCHE –LA LIBERTAD 2015 [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/19864
Otiniano, Y., DIVERSIDAD ICTIOLÓGICA DE LA CUENCA BAJA DEL RIO MOCHE –LA LIBERTAD 2015 []. PE: Universidad Nacional de Trujillo; 2016. https://hdl.handle.net/20.500.14414/19864
@misc{renati/1049457,
title = "DIVERSIDAD ICTIOLÓGICA DE LA CUENCA BAJA DEL RIO MOCHE –LA LIBERTAD 2015",
author = "Otiniano Tandaypan, Yolvin Marcial",
publisher = "Universidad Nacional de Trujillo",
year = "2016"
}
Título: DIVERSIDAD ICTIOLÓGICA DE LA CUENCA BAJA DEL RIO MOCHE –LA LIBERTAD 2015
Autor(es): Otiniano Tandaypan, Yolvin Marcial
Asesor(es): Lujan Bulnes, Luis Angelo
Campo OCDE: https://purl.org/pe-repo/ocde/ford#1.06.00
Fecha de publicación: 2016
Institución: Universidad Nacional de Trujillo
Resumen: El presente estudio se realizó en la cuenca baja del Río Moche de marzo a noviembre del 2015. Las muestras se recogieron cada dos semanas en nueve estaciones georreferenciados situados en un área entre la 08° 09’ 40,2”- 08° 00’ 51,5” S a 79° 02’ 12,7” – 78° 49’ 35,1” W, los peces fueron colectados con dos redes de arrastre de playa de 7mx2.5 m y 2mx1.5 m (malla anchovetera), también se utilizó atarraya de 3.5 kg de peso y 2.5 m de diámetro; de igual manera en cada punto muestreado se registraron la temperatura y la profundidad; luego la muestra se trasladó al laboratorio, las especies se identificaron utilizando una clave y una lista de peces de aguas continentales. Se colectaron 780 ejemplares y se identificaron 10 especies de peces agrupados en 10 géneros, 7 familias y 5 ordenes. El orden que presenta mayor número de especies fue los Characiformes con 3 especímenes (30%) de las especies y una riqueza del 40% del total. La familia Characidae, Cichlidae y la familia Poecilidae presentaron el mayor número de especies con el 20% cada una, la familia Cichlidae presentó la mayor abundancia con 244 especímenes (31 %) del total. La estación E4 fue la que presentó mayor riqueza con 9 especies y una abundancia de 165 ejemplares capturados. La especie más abundante fue Lebiasina bimaculata con 149 individuos (19%), Oreochromis niloticus con 134 (17%). Los valores Shannon-Wiener (H´) vario entre 1,546 y 3,006. El índice de equidad de Pielou (J´) fue de 0.95 en promedio, donde el 100% de las estaciones tuvieron una distribución de las especies con tendencia homogénea. El análisis de similaridad indica una composición distinta por sectores muestreados, la distribución de la ictiofauna se encuentra influenciada por la disponibilidad de hábitats. Las especies introducidas encontradas fueron 3: Xiphophorus hellerii “pez espada”, Poecilia reticulata “gupy” y Oreochromis niloticus “tilapia del Nilo”.
The present study was set in the lower part of the Moche River Watershed from March to November 2015. The samples were collected every two weeks in nine georeferenced stations located in an area between the 08 ° 09 '40.2 "- 08 ° 00' 51.5 "S 79 ° 02 '12.7" - 78 ° 49' 35.1 "W, fishes were collected with trawls on the edge of 7x2.5 m and 2x1.5 m (5 mm mesh), also an atarraya was used (3.5 kg and 2.5 m in diameter); at the same time the temperature and depth were recorded in each station; then the samples were transfered to the lab. Species were identified with taxonomic keys and reports of freshwater fishes. 780 specimens were collected and 10 species of fishes grouped in 10 genera, 7 families and five orders were identified. Characiformes was the most numerous order with 3 specimens (30%) of the species and a wealth of 40% total. The Characidae, Cichlidae and the Poecilidae family had the highest number of species with 20% each, the Cichlidae family had the highest abundance with 244 specimens (31%) of the total. E4 station was the one with the greatest wealth with 9 species and an abundance of 165 fish caught. The most abundant species was Lebiasina bimaculata with 149 individuals (19%), Oreochromis niloticus with 134 (17%). The Shannon-Wiener (H ') varied from 1,546 to 3,006 values. The Pielou equity index (J ') was 0.95 on average, where 100% of the stations had a distribution of species with homogeneous trend. Similarity analysis indicates a different composition sampled sectors, the distribution of fishes is influenced by the availability of habitats. Exotic species found were 3: Xiphophorus hellerii "swordfish",Poecilia reticulata "guppy" and Oreochromis niloticus "Nile tilapia."
The present study was set in the lower part of the Moche River Watershed from March to November 2015. The samples were collected every two weeks in nine georeferenced stations located in an area between the 08 ° 09 '40.2 "- 08 ° 00' 51.5 "S 79 ° 02 '12.7" - 78 ° 49' 35.1 "W, fishes were collected with trawls on the edge of 7x2.5 m and 2x1.5 m (5 mm mesh), also an atarraya was used (3.5 kg and 2.5 m in diameter); at the same time the temperature and depth were recorded in each station; then the samples were transfered to the lab. Species were identified with taxonomic keys and reports of freshwater fishes. 780 specimens were collected and 10 species of fishes grouped in 10 genera, 7 families and five orders were identified. Characiformes was the most numerous order with 3 specimens (30%) of the species and a wealth of 40% total. The Characidae, Cichlidae and the Poecilidae family had the highest number of species with 20% each, the Cichlidae family had the highest abundance with 244 specimens (31%) of the total. E4 station was the one with the greatest wealth with 9 species and an abundance of 165 fish caught. The most abundant species was Lebiasina bimaculata with 149 individuals (19%), Oreochromis niloticus with 134 (17%). The Shannon-Wiener (H ') varied from 1,546 to 3,006 values. The Pielou equity index (J ') was 0.95 on average, where 100% of the stations had a distribution of species with homogeneous trend. Similarity analysis indicates a different composition sampled sectors, the distribution of fishes is influenced by the availability of habitats. Exotic species found were 3: Xiphophorus hellerii "swordfish",Poecilia reticulata "guppy" and Oreochromis niloticus "Nile tilapia."
Enlace al repositorio: https://hdl.handle.net/20.500.14414/19864
Disciplina académico-profesional: Pesqueria
Institución que otorga el grado o título: Universidad Nacional de Trujillo. Facultad de Ciencias Biologicas
Grado o título: Biologo Pesquero
Jurado: Culquichicon Malpica, Zoila Gladis; Alva Calderon, Roger Marino; Rodriguez Castillo, Andres Oswaldo
Fecha de registro: 11
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