Top Predators in Marine Ecosystems: Their Role in Monitoring by C. J. Camphuysen, I. L. Boyd, S. Wanless
By C. J. Camphuysen, I. L. Boyd, S. Wanless
The sustainable exploitation of the marine setting is dependent upon our means to enhance structures of administration with predictable results. regrettably, marine ecosystems are hugely dynamic and this estate may clash with the target of sustainable exploitation. This booklet investigates the speculation that the inhabitants and behavioural dynamics of predators on the top finish of marine foodstuff chains can be utilized to aid with administration. due to the fact that those species combine the dynamics of marine ecosystems throughout quite a lot of spatial and temporal scales, they give new resources of data that may be officially utilized in atmosphere administration targets. This booklet examines the present advances within the figuring out of the ecology of marine predators and may examine how details from those species may be utilized in administration.
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Extra info for Top Predators in Marine Ecosystems: Their Role in Monitoring and Management
1995, White & Peterson 1996, Connolley 2002, Trathan & Murphy 2002). Anomalies in sea-ice extent are now thought to precess eastwards at speeds consistent with the ACC (Murphy et al. 1995). Similarly, anomalies in other physical factors are also thought to propagate at speeds consistent with the flow (Jacobs & Mitchell 1996, White & Peterson 1996) – including anomalies in atmospheric pressure, wind stress, seasurface temperature and sea height. This precession of anomalies has been described as the Antarctic Circumpolar Wave (ACW) (White & Peterson 1996).
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2002), variability in foraging-trip duration (McCafferty et al. 1998) and variability in breeding performance (Lunn & Boyd 1993), are now thought to be related to variability in krill biomass and/or availability. Our increased understanding of the role of ocean currents in transporting krill to South Georgia and of the relationship between sea-surface temperature (SST) and the abundance of krill at South Georgia (Trathan et al. 2003), means that physical variability could potentially be used to predict responses in higher trophic levels.