Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico

The nearshore zooplankton species assemblage, identified per taxonomic groups (20) and per species for 12 selected groups, was analyzed from samples collected during November 2010 at four volcanic islands of the Islas Marías Archipelago (IMA), located 90-120 km offshore Nayarit, Mexico. From chlorop...

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Autores principales:	Gómez-Gutiérrez,Jaime, Funes-Rodríguez,René, Arroyo-Ramírez,Karmina, Sánchez-Ortíz,Carlos Armando, Beltrán-Castro,Juan Ramón, Hernández-Trujillo,Sergio, Palomares-García,Ricardo, Aburto-Oropeza,Octavio, Ezcurra,Exequiel
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2014
Materias:	zooplankton assemblage zooplankton biovolume neritic tropical Islas Marías Archipelago Mexico
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000500007
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spelling	oai:scielo:S0718-560X20140005000072015-11-12Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, MexicoGómez-Gutiérrez,JaimeFunes-Rodríguez,RenéArroyo-Ramírez,KarminaSánchez-Ortíz,Carlos ArmandoBeltrán-Castro,Juan RamónHernández-Trujillo,SergioPalomares-García,RicardoAburto-Oropeza,OctavioEzcurra,Exequiel zooplankton assemblage zooplankton biovolume neritic tropical Islas Marías Archipelago Mexico The nearshore zooplankton species assemblage, identified per taxonomic groups (20) and per species for 12 selected groups, was analyzed from samples collected during November 2010 at four volcanic islands of the Islas Marías Archipelago (IMA), located 90-120 km offshore Nayarit, Mexico. From chlorophyll-a concentration and zooplankton biovolume perspective mesotrophic conditions prevailed in comparison with the Gulf of California during November. Crustaceans numerically dominated the zooplankton assemblage (92.3%) [Copepoda (79.2%), Decapoda larvae (4.7%), Cladocera (3.7%), Mysidacea (2.7%), and Euphausiacea (2.0%)]. The other 15 taxonomic groups (7.7% combined) accounted each one less than 1.5% of the relative abundance. Species richness of selected taxa (~56%>) included 259 taxa (121 identified to species, 117 to genus, and 21 not identified). Tropical species from neritic affinity clearly dominated zooplankton assemblage around IMA. Five tropical Copepoda species [Calanopia minor (Dana), Clausocalanus jobei Frost & Fleminger, Acrocalanus gibber Giesbrecht, Canthocalanus pauper (Giesbrecht), and Centropages furcatus (Dana)], a cladoceran Pseudevadne tergestina (Claus), and a Mysidacea species (Mysidium reckettsi Harrison & Bowman) dominated the zooplankton assemblage (accounting about 55% of total abundance of the identified species). Except C. furcatus, all these species are not abundant at oceanic regions of the central and northern Gulf of California. The similarity of multiple neritic and tropical species in the zooplankton assemblage from IMA and Cape Corrientes suggests strong coastal-insular plankton connectivity. Episodic current plumes associated with anomalous intense rivers discharge during rainy years, eddies generated by coastal upwelling event that move offshore, and northward regional oceanic circulation are the most likely mesoscale oceanographic processes that cause costal tropical zooplankton drift enhancing coastal-Archipelago species connectivity in this region.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.42 n.5 20142014-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000500007en10.3856/vol42-issue5-fulltext-7
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	zooplankton assemblage zooplankton biovolume neritic tropical Islas Marías Archipelago Mexico
spellingShingle	zooplankton assemblage zooplankton biovolume neritic tropical Islas Marías Archipelago Mexico Gómez-Gutiérrez,Jaime Funes-Rodríguez,René Arroyo-Ramírez,Karmina Sánchez-Ortíz,Carlos Armando Beltrán-Castro,Juan Ramón Hernández-Trujillo,Sergio Palomares-García,Ricardo Aburto-Oropeza,Octavio Ezcurra,Exequiel Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico
description	The nearshore zooplankton species assemblage, identified per taxonomic groups (20) and per species for 12 selected groups, was analyzed from samples collected during November 2010 at four volcanic islands of the Islas Marías Archipelago (IMA), located 90-120 km offshore Nayarit, Mexico. From chlorophyll-a concentration and zooplankton biovolume perspective mesotrophic conditions prevailed in comparison with the Gulf of California during November. Crustaceans numerically dominated the zooplankton assemblage (92.3%) [Copepoda (79.2%), Decapoda larvae (4.7%), Cladocera (3.7%), Mysidacea (2.7%), and Euphausiacea (2.0%)]. The other 15 taxonomic groups (7.7% combined) accounted each one less than 1.5% of the relative abundance. Species richness of selected taxa (~56%>) included 259 taxa (121 identified to species, 117 to genus, and 21 not identified). Tropical species from neritic affinity clearly dominated zooplankton assemblage around IMA. Five tropical Copepoda species [Calanopia minor (Dana), Clausocalanus jobei Frost & Fleminger, Acrocalanus gibber Giesbrecht, Canthocalanus pauper (Giesbrecht), and Centropages furcatus (Dana)], a cladoceran Pseudevadne tergestina (Claus), and a Mysidacea species (Mysidium reckettsi Harrison & Bowman) dominated the zooplankton assemblage (accounting about 55% of total abundance of the identified species). Except C. furcatus, all these species are not abundant at oceanic regions of the central and northern Gulf of California. The similarity of multiple neritic and tropical species in the zooplankton assemblage from IMA and Cape Corrientes suggests strong coastal-insular plankton connectivity. Episodic current plumes associated with anomalous intense rivers discharge during rainy years, eddies generated by coastal upwelling event that move offshore, and northward regional oceanic circulation are the most likely mesoscale oceanographic processes that cause costal tropical zooplankton drift enhancing coastal-Archipelago species connectivity in this region.
author	Gómez-Gutiérrez,Jaime Funes-Rodríguez,René Arroyo-Ramírez,Karmina Sánchez-Ortíz,Carlos Armando Beltrán-Castro,Juan Ramón Hernández-Trujillo,Sergio Palomares-García,Ricardo Aburto-Oropeza,Octavio Ezcurra,Exequiel
author_facet	Gómez-Gutiérrez,Jaime Funes-Rodríguez,René Arroyo-Ramírez,Karmina Sánchez-Ortíz,Carlos Armando Beltrán-Castro,Juan Ramón Hernández-Trujillo,Sergio Palomares-García,Ricardo Aburto-Oropeza,Octavio Ezcurra,Exequiel
author_sort	Gómez-Gutiérrez,Jaime
title	Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico
title_short	Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico
title_full	Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico
title_fullStr	Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico
title_full_unstemmed	Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico
title_sort	oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the islas marías archipelago, mexico
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000500007
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Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marías Archipelago, Mexico

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