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Ictioplancton, eufáusidos y biovolúmenes de zooplancton del mar peruano, verano 2019

Authors: Pinedo, Elda; Ayón Dejo, Patricia;

Ictioplancton, eufáusidos y biovolúmenes de zooplancton del mar peruano, verano 2019

Abstract

ABSTRACT: From February 12 to March 27, 2019, a hydroacoustic assessment cruise for pelagic resources (1902-03) was conducted aboard the R/Vs Olaya and Humboldt along the Peruvian coast. The cruise aimed to study the ichthyoplankton, euphausiids, and zooplankton biovolumes. A total of 32 families and 64 species of ichthyoplankton were identified, with Engraulis ringens eggs and larvae being the most abundant, ranging from 3 to 17,952 eggs.m-2 and from 3 to 1,500 larvae.m-2. The highest spawning concentrations were found in the coastal area between Talara and Cerro Azul. Eggs and larvae of Vinciguerria also showed significant concentrations, with values of 3 to 2,553 eggs.m-2 and from 3 to 222 larvae.m-2, distributed outside the continental shelf. Thirteen species of euphausiids were also identified, with Euphausia mucronata being the most abundant. Zooplankton biovolumes ranged from 0.01 to 8.78 mL.m-3, with values >0.5 mL.m-3 distributed mainly outside the 10 nm zone.

A bordo de los BIC Olaya y Humboldt, del 12 de febrero al 27 de marzo 2019 se realizó el Crucero de Evaluación Hidroacústica de Recursos Pelágicos 1902-03. Fueron determinados huevos y larvas de 32 familias y 64 especies de ictioplancton. Los huevos y larvas de anchoveta fueron más abundantes, variando de 3 a 17 952 huevos.m-2 y de 3 a 1 500 larvas.m-2. Desde Talara hasta Cerro Azul, en la zona costera fueron localizados mayores desoves. Los huevos y larvas de Vinciguerria también presentaron importantes concentraciones con valores de 3 a 2 553 huevos.m-2 y de 3 a 222 larvas.m-2, distribuidos por fuera de la plataforma continental. Además del ictioplancton, fueron determinadas 13 especies de eufáusidos, siendo Euphausia mucronata más abundante. Los biovolúmenes de zooplancton oscilaron entre 0,01 y 8,78 mL.m-3, con valores >0,5 mL.m-3 distribuidos principalmente por fuera de las 10 mn.

Country
Peru
Keywords

Larvas, 570, Ictioplancton, Euphausia mucronata, Engraulis ringens, http://purl.org/pe-repo/ocde/ford#1.06.12

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green