Composition, distribution, and abundance of ichthyoplankton between Paita (5°00’S), and Independencia Bay (14°45’S), winter 2018
DOI:
https://doi.org/10.53554/boletin.v38i2.389Keywords:
Ichthyoplankton, Biovolumes, Engraulis ringensAbstract
This study presents the composition, distribution, and abundance of ichthyoplankton species collected during winter 2018 in the area spanning from Paita (5°00’S) to Independencia Bay (14°45’S). Zooplankton biovolumes ranged from 0.012 to 1.989 mL/m3, with a prevalence of biovolumes below 0.2 mL/m3 (49 %), primarily over the continental shelf. Twenty ichthyoplankton species belonging to 14 families were identified. Engraulis ringens emerged as the most frequent and abundant species. Its eggs accounted for 77 %, and larvae for 74 % of the total samples. Their abundance varied from 3 to 17,916 eggs/m2 and 3 to 1,677 larvae/m2, constituting 99 % of the total ichthyoplankton abundance. Larvae of Diogenichthys laternatus and Vinciguerria lucetia were also noticeable, with frequencies of 14 % and 12 % of the samples, respectively. Nonetheless, their abundances were low.
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