Abstract

BELTRAN-LEON, Beatriz Susana  and  MORALES OSORIO, Yaneth Alicia. Distribution, composition, and abundance of ichthyoplankton in three marine protected areas of the Colombian Pacific. Bol. Invest. Mar. Cost. [online]. 2021, vol.50, n.2, pp.31-52.  Epub Dec 03, 2021. ISSN 0122-9761.  https://doi.org/10.25268/bimc.invemar.2021.50.2.1062.

With the purpose of characterizing ichthyoplankton in three marine protected areas (Sanquianga National Natural Park, Gorgona National Natural Park and Malpelo Fauna and Flora Sanctuary) in the Colombian Pacific during November 2009, scientific expeditions were carried out to obtain 56 samples by trawling with bongo nets. 3,155 / 10 m2 fish larvae were captured distributed in 1,553 larvae / 10 m2 (49.22 %) for the PNN Sanquianga; 1,411 larvae / 10m2 (44.72 %) for the Gorgona PNN and 191 larvae / 10m2 (6.05 %) for the Malpelo SFF. The main families were Engraulidae (PNN Sanquianga), Bregmacerotidae (PNN Gorgona) and Phosichthyidae (SFF Malpelo). The NMS community analysis shows that the location of the PNN Sanquianga (coastal), PNN Gorgona (intermediate) and SFF Malpelo (oceanic) areas, marks a clear difference in the composition, distribution and abundance of the larvae. Eggs of Engraulidae were found for the first time in the Malpelo area, an unusual area in its distribution, coinciding with what was reported by the Climate Alert Bulletin (BAC, 2009) of July 2009, which reports the development of an El Niño event, which lasted until the first quarter of 2010.

Keywords : marine protected areas; ichthyoplankton; Colombian Pacific; fish larvae..

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