Importancia relativa de las variables de la columna de agua vs las del zooplancton en la determinación de la estructura de los grupos de larvas de peces en última fase de desarrollo en las aguas costeras de una laguna de arrecife coralino

Translated title of the contribution: Relative importance of water column vs zooplankton variables in the determination of late-stage larval fish assemblage structure in coastal waters of a coral reef lagoon

Laure Carassou, Dominique Ponton

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The relationship between fish larvae and their zooplanktonic prey has not been fully explored for late-stage larvae of coral-reef fish in lagoonal environments. However, compared to most temperate taxa, these larvae are characterized by strong sensory and swimming abilities, which may influence their feeding behaviour in the water column. The present study aims to determine the relative importance of the water column and zooplankton variables for the structure of pre-settlement larval fish assemblages within a single season in three bays of the coral reef lagoon of New Caledonia, southwest Pacific. The structure of larval assemblages was found to be explained better by water column variables in two out of the three bays examined. Zooplankton variables only played a role in one bay out of the three, probably due to the lower variability in the water column variables. Moreover, the relationship between total larval fish abundance and zooplankton density was not significant in any of the three bays. These results suggest that the relationship between late-stage coral-reef fish larvae and their prey: 1) is difficult to detect at small spatial and temporal scales, 2) is probably complex and non-linear, 3) depends on environmental conditions, and 4) probably varies between fish taxa.

Original languageSpanish
Pages (from-to)73-84
Number of pages12
JournalScientia Marina
Volume73
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2009

Fingerprint

coral reefs
coastal water
zooplankton
water column
fish larvae
fish
larva
water
coral reef
larvae
New Caledonia
feeding behavior
larval settlement
environmental factors
coral reef lagoon
environmental conditions

Keywords

  • Bays
  • Late-stage coral-reef fish larvae
  • Spatial and temporal scale
  • Water column properties
  • Zooplanktonic prey

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

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title = "Importancia relativa de las variables de la columna de agua vs las del zooplancton en la determinaci{\'o}n de la estructura de los grupos de larvas de peces en {\'u}ltima fase de desarrollo en las aguas costeras de una laguna de arrecife coralino",
abstract = "The relationship between fish larvae and their zooplanktonic prey has not been fully explored for late-stage larvae of coral-reef fish in lagoonal environments. However, compared to most temperate taxa, these larvae are characterized by strong sensory and swimming abilities, which may influence their feeding behaviour in the water column. The present study aims to determine the relative importance of the water column and zooplankton variables for the structure of pre-settlement larval fish assemblages within a single season in three bays of the coral reef lagoon of New Caledonia, southwest Pacific. The structure of larval assemblages was found to be explained better by water column variables in two out of the three bays examined. Zooplankton variables only played a role in one bay out of the three, probably due to the lower variability in the water column variables. Moreover, the relationship between total larval fish abundance and zooplankton density was not significant in any of the three bays. These results suggest that the relationship between late-stage coral-reef fish larvae and their prey: 1) is difficult to detect at small spatial and temporal scales, 2) is probably complex and non-linear, 3) depends on environmental conditions, and 4) probably varies between fish taxa.",
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AB - The relationship between fish larvae and their zooplanktonic prey has not been fully explored for late-stage larvae of coral-reef fish in lagoonal environments. However, compared to most temperate taxa, these larvae are characterized by strong sensory and swimming abilities, which may influence their feeding behaviour in the water column. The present study aims to determine the relative importance of the water column and zooplankton variables for the structure of pre-settlement larval fish assemblages within a single season in three bays of the coral reef lagoon of New Caledonia, southwest Pacific. The structure of larval assemblages was found to be explained better by water column variables in two out of the three bays examined. Zooplankton variables only played a role in one bay out of the three, probably due to the lower variability in the water column variables. Moreover, the relationship between total larval fish abundance and zooplankton density was not significant in any of the three bays. These results suggest that the relationship between late-stage coral-reef fish larvae and their prey: 1) is difficult to detect at small spatial and temporal scales, 2) is probably complex and non-linear, 3) depends on environmental conditions, and 4) probably varies between fish taxa.

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