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Resumen del producto

Martínez, M.A., C.M., Hereu, M.C., Arteaga, S.P.A., Jiménez-Rosenberg, S.Z., Herzka, A., Saavedra-Flores, J., Robles-Flores, R., Gómez-Reyes, P.G., Batta-Lona, J., Gasca-Pineda & C.E., Galindo-Sánchez (2021). Epipelagic zooplankton diversity in the deep water region of the Gulf of Mexico: A metabarcoding survey. ICES Journal of Marine Science. 78(9): 3317-3332. DOI: 10.1093/icesjms/fsab090.

Epipelagic zooplankton diversity in the deep water region of the Gulf of Mexico: A metabarcoding survey

Miguel A. Martínez 1, Clara María Hereu 1, Maria Clara Arteaga 2, Sylvia Patricia Adelheid Jiménez-Rosenberg 3, Sharon Z. Herzka 4, Anaid Saavedra-Flores 1, Javier Robles-Flores 1, Ricardo Gómez-Reyes 1, Paola Gabriela Batta-Lona 1, Jaime Gasca-Pineda 2 y Clara E. Galindo-Sánchez 1

1 Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Depto. de Biotecnologia Marina
2 Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Depto. de Biol. de la Conservación
3 Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Departamento de Placton y Ecología Marina
4 Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Depto. de Ecología Marina
Zooplankton is a key component in marine ecosystem health assessment. Here, we present a taxonomically comprehensive description of thezooplankton community (0–200 m) based on metabarcoding of the V9 hypervariable region of the 18S rRNA gene of 47 samples collected inthe Gulf of Mexico (GoM) during summer 2015. Fourteen phyla were identified Arthropoda were dominant, with Calanidae, Metridinidae,and Euphausiidae as the most conspicuous families. Other abundant phyla were Cnidaria (Hydrozoa), Chordata (Tunicata), andChaetognatha. The V9-18S sequence data were clustered into 1888 Operational Taxonomic Units (OTUs), of which 39 were cosmopolitanand belonging to various phyla, suggesting the presence of a core community with high local diversity throughout the GoM. Evaluation ofmetabarcoding sequences abundance showed overall positive correlations with morphologically quantified abundances except for specificgroups. Cluster analysis of OTU distributions indicated two primary biographically distinctive groups of stations: one restricted to the Bay ofCampeche, while the other occurred in the Central-West GoM, similar to previous descriptions of regional variation of the GoM based on environmentalvariables. Together these results provide a foundation for broad-scale zooplankton molecular biodiversity assessments in thesouthern GoM allowing evaluation of the effects of environmental changes on zooplankton communities.

Palabras clave: Bay of Campeche; Gulf of Mexico; metabarcoding; V9-18S rRNA; zooplankton

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