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- W2029090248 abstract "DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials DAO 38:71-74 (1999) - doi:10.3354/dao038071 Sea urchin Meoma ventricosa die-off in Curaçao (Netherlands Antilles) associated with a pathogenic bacterium I. Nagelkerken1,2,*, G. W. Smith3, E. Snelders1, M. Karel1, S. James3 1Carmabi Foundation, PO Box 2090, Piscaderabaai z/n, Curaçao, Netherlands Antilles 2Laboratory of Aquatic Ecology, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands 3Department of Biology, University of South Carolina-Aiken, 171 University Parkway, Aiken, South Carolina 29801, USA *E-mail: carmabi@ibm.net ABSTRACT: During January 1997 a die-off occurred in the sea urchin Meoma ventricosa in Curaçao, Netherlands Antilles. The mortalities were characterized by a progressive loss of spines and death. Microscopy of affected tissue revealed amorphous catch connective tissue of the spines, containing Gram-negative bacterial cells. Deliberate infections of the urchin Lytechinus variegatus with 1 of the 2 bacterial isolates resulted in signs similar to those observed in affected M. ventricosa in the field. The M. ventricosa die-off was restricted to an area of 3.5 km along the coast just down-current of the main harbor of Curaçao, and caused a significant decrease in population size of M. ventricosa in this area. In the impact area the percentage of affected urchins was similar, but the percentage of dead urchins dropped from 83 to 0% with distance down-current from the harbor. It is likely that polluted water from the harbor increased the density of pathogenic bacterial strains causing the infection. KEY WORDS: Mortality · Pathogenic bacterium · Sea urchin · Meoma ventricosa · Infection · Lytechinus variegatus Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in DAO Vol. 38, No. 1. Publication date: October 11, 1999 Print ISSN:0177-5103; Online ISSN:1616-1580 Copyright © 1999 Inter-Research." @default.
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- W2029090248 title "Sea urchin Meoma ventricosa die-off in Curaçao (Netherlands Antilles) associated with a pathogenic bacterium" @default.
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