Journal of Marine Biology & OceanographyISSN: 2324-8661

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Daniel Grados Author

DanielGrados@mail.com

Subjects of specialization
Hydrobiology ,Physiology of Marine Organisms,Fisheries Biology and Management,Ecosystem Ecology,Marine Chemistry

Affiliation
Instituto del Mar del Per

Biography

Padmavati G works at the Instituto del Mar del Perú (IMARPE). Esq. Gamarra and General Valle s/n, Chucuito, Callao, Peru. Specialized in Hydrobiology, Hydrology, Marine Conversation, Marine Biology, Marine Chemistry.

Publications

Research Article Open Access

Anchoveta (Engraulis ringens) Biomass in the Peruvian Marine Ecosystem Estimated by Various Hydroacoustic Methodologies during spring of 2019

Author(s):

Ramiro Castillo*, Luis La Cruz Aparco, Daniel Grados, Rodolfo Cornejo, Renato Guevara and Jorge Csirke

The Hydroacoustic Pelagic Resources Assessment survey (Cruise 1909-11) was conducted along the Peruvian coast (03°23'S-18°21'S) between 29 September and 15 November 2019 with the participation of three scientific research vessels from the Peruvian Marine Research Institute (Instituto del Mar del Peru, IMARPE), the R/V José Olaya Balandra, the R/V Flores Portugal and the R/V Humboldt. Using the acoustic data collected by the three scientific vessels we estimated the anchoveta biomass using seven hydroacoustic methodologies by applying the following three types of techniques in the processing and subsequent analysis of the eco-acoustic records for the frequencies of 120 and 38 kHz: stratification by isoparalitoral areas; stratification by transects; and by geostatis... view more»

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