Monitoring pelagic ecosystems using plankton indicators

Author:

Beaugrand Grégory12

Affiliation:

1. CNRS, UMR 8013 ELICO, Université des Sciences et Technologies de Lille 1 BP 80, 28 avenue Foch, 62930 Wimereux, France

2. Sir Alister Hardy Foundation for Ocean Science, Citadel Hill, The Laboratory Plymouth PL1 2PB, England, UK

Abstract

Abstract Planktonic organisms are an important food resource of pelagic ecosystems, but they also serve as an integrator of hydroclimatic forcing. Four types of recently developed plankton indicator, based on the Continuous Plankton Recorder survey, are summarized here: indicators based on individual taxa; indicators based on functional attributes of the ecosystem (diversity); species assemblage indicators; and indicators of larval fish survival. All provide information on the state of a pelagic ecosystem, but have different limitations. Therefore, their combined application provides the most accurate diagnosis of ecosystem state. In most of the examples described, statistical analyses help to identify major spatial and temporal patterns, and may allow future ecosystem changes to be anticipated.

Publisher

Oxford University Press (OUP)

Subject

Ecology,Aquatic Science,Ecology, Evolution, Behavior and Systematics,Oceanography

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