Spawning aggregations in reef fishes; ecological and evolutionary processes

Choat, John Howard (2012) Spawning aggregations in reef fishes; ecological and evolutionary processes. In: Sadovy de Mitcheson, Yvonne, and Colin, Patrick L., (eds.) Reef Fish Spawning Aggregations: biology, research and management. Fish and Fisheries Series, 35 . Springer, Dordrecht, the Netherlands, pp. 85-116.

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What factors have been important in the evolution of reef fish spawning aggregations? Surprisingly, basic biological features such as size, trophic ecology and anatomy are more predictive than life history features. As long as the different groups (Resident and Transient aggregators) shared basic properties of body size, nutritional ecology and anatomy they manifest similar spawning behaviours regardless of whether they are protogynous or gonochoristic, exhibit short or long generation times or have slow or fast population turnover rates. A critical element in the evolution of spawning aggregations is proposed to be the rapid advection of eggs and larvae away from the reef environment. In addition the timing of spawning episodes may be linked to specific seasonal and climatic features of the ocean environment, a variant of the match/mismatch hypothesis developed to explain spawning patterns in clupeoid fishes. Neither larval retention nor broad dispersal are seen as critical elements in the evolution of spawning aggregations. It is hypothesized that differences in aggregate spawning patterns and their underlying processes will occur in the Pacific and Atlantic oceans, a reflection of the different histories, oceanic environments and habitat structures of these two ocean basins.

Item ID: 20205
Item Type: Book Chapter (Research - B1)
ISBN: 978-94-007-1979-8
Keywords: animal aggregations; fisheries; oceanography; reef fishes; reproduction
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Date Deposited: 05 Mar 2012 06:31
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070403 Fisheries Management @ 100%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830299 Fisheries- Wild Caught not elsewhere classified @ 100%
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