The influence of elemental chemistry on the widths of otolith increments in the neon damselfish (Pomacentrus coelestis)

Kingsford, Michael J. and Patterson, Heather M. and Flood, Matthew J. (2008) The influence of elemental chemistry on the widths of otolith increments in the neon damselfish (Pomacentrus coelestis). Fishery Bulletin, 106(2), pp. 135-142.

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Abstract

We examined the potential for water chemistry to affect the width of daily increments in reef fish otoliths using both mensurative and manipulative methods. We found significant differences in the widths of increments in otoliths of the neon damselfish (Pomacentrus coelestis) collected in different habitats at One Tree Island on the Great Barrier Reef. We then used manipulative experiments to determine if natural water masses (ocean water vs. lagoon plume) could produce different incremental widths in otoliths in the absence of potentially confounding factors. Fish exposed to ocean water had significantly wider otolith increments for two of the three experiments. Elemental analyses indicated that Ba/Ca ratios were significantly correlated with increment widths for two of the three experiments and Sr/Ca ratios did not correlate with increment width for any experimental period. Variation in crystal-lattice orientation did not explain differences in increment width between treatments. Differences in water chemistry can affect increment widths in otoliths of reef fishes, potentially confounding patterns previously attributed to growth rate or condition alone.

Item Type: Article
Title: The influence of elemental chemistry on the widths of otolith increments in the neon damselfish (Pomacentrus coelestis)
Personal Creator/Author:
CreatorsEmail
Kingsford, Michael J.
Patterson, Heather M.
Flood, Matthew J.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 106
Number: 2
Page Range: pp. 135-142
Date: 2008
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8845
Depositing User: Patti M. Marraro
Date Deposited: 13 Jun 2012 07:26
Last Modified: 13 Jun 2012 07:26
URI: http://aquaticcommons.org/id/eprint/8845

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