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Free Content Report on a Collection of Chaetognaths from Banco Chinchorro, Mexican Caribbean Sea

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Abstract:

The most abundant species in the study area were: Sagitta enflata (74.7%), S. hispida (7.8%), and S. serratodentata (6.5%). Nine species of planktonic chaetognaths—S. enflata, S. hispida, S. serratodentata, Krohnitta subtilis, K. pacifica, Pterosagitta draco, S. hexaptera, S. tenuis, and S. bipunctata—were identified in plankton samples collected from near the surface at Banco Chinchorro, Mexico during September 1999 and March 2000. Most plankton samples were collected during the night. Highest mean chaetognath density occurred in the forereef area (5352 org/1000 m3), and lowest values in the reef lagoon (541 org/1000 m3). Cluster analysis of the stations revealed two types of assemblages, one of high densities and the other with low densities. Values of the ShannonWiener diversity index were statistically greater at the reef lagoon zone (2.2 bits ind−1) than in the forereef (1.3 bits ind−1).

Document Type: Research Article

Publication date: July 1, 2003

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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