Blooms of the toxic dinoflagellate Karenia brevis are common in the Gulf of Mexico, yet no in situ studies of zooplankton and K. brevis have been conducted there. Zooplankton abundance and taxonomic composition at non-bloom and K. brevis bloom stations within the Ecology of Harmful Algal Blooms (ECOHAB) study area were compared. At nonbloom stations, the most abundant species of zooplankton were Parvocalanus crassirostris, Oithona colcarva, and Paracalanus quasimodo at the 5-m isobath and P. quasimodo, O. colcarva, and Oikopleura dioica at the 25-m isobath. There was considerable overlap in dominance of zooplankton species between the 5 and 25-m isobaths, with nine species contributing to 90% of abundance at both isobaths. At stations within K. brevis blooms however, Acartia tonsa, Centropages velificatus, Temora turbinata, Evadne tergestina, O. colcarva, O. dioica, and P. crassirostris were dominant. Variations in abundance between non-bloom and bloom assemblages were evident, including the reduction in abundance of three key species within K. brevis blooms.
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Contributors
Publisher
Elsevier Ltd.
Date Issued
2007
Note
Language
Type
Genre
Extent
14 p.
Subject (Topical)
Identifier
2763292
Additional Information
Blooms of the toxic dinoflagellate Karenia brevis are common in the Gulf of Mexico, yet no in situ studies of zooplankton and K. brevis have been conducted there. Zooplankton abundance and taxonomic composition at non-bloom and K. brevis bloom stations within the Ecology of Harmful Algal Blooms (ECOHAB) study area were compared. At nonbloom stations, the most abundant species of zooplankton were Parvocalanus crassirostris, Oithona colcarva, and Paracalanus quasimodo at the 5-m isobath and P. quasimodo, O. colcarva, and Oikopleura dioica at the 25-m isobath. There was considerable overlap in dominance of zooplankton species between the 5 and 25-m isobaths, with nine species contributing to 90% of abundance at both isobaths. At stations within K. brevis blooms however, Acartia tonsa, Centropages velificatus, Temora turbinata, Evadne tergestina, O. colcarva, O. dioica, and P. crassirostris were dominant. Variations in abundance between non-bloom and bloom assemblages were evident, including the reduction in abundance of three key species within K. brevis blooms.
This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version has been published at http://www.elsevier.com and may be cited as: Lester, Kristen M., Cynthia A. Heil, Merry B. Neely, Danylle N. Spence, Susan Murasko, Thomas L. Hopkins, Tracey T. Sutton, Scott E. Burghart, Richard N. Bohrer, Andrew W. Remsen, Gabriel A. Vargo, and John J. Walsh (2007) Zooplankton and Karenia brevis in the Gulf of Mexico, Continental Shelf Research 28:99–111 doi: 10.1016/j.csr.2007.04.009
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1679.
Date Backup
2007
Date Text
2007
DOI
10.1016/j.csr.2007.04.009
Date Issued (EDTF)
2007
Extension
FAU
FAU
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IID
FADT2763292
Issuance
single unit
Organizations
Attributed name: Harbor Branch Oceanographic Institute
Person Preferred Name
Lester, Kristen M.
creator
Physical Description
14 p.
Title Plain
Zooplankton and Karenia brevis in the Gulf of Mexico
Origin Information
Elsevier Ltd.
2007
single unit
Title
Zooplankton and Karenia brevis in the Gulf of Mexico
Other Title Info
Zooplankton and Karenia brevis in the Gulf of Mexico