Copepod hatching success in marine ecosystems with high diatom concentrations

作者: Xabier Irigoien , Roger P. Harris , Hans M. Verheye , Pierre Joly , Jeffrey Runge

DOI: 10.1038/NATURE01055

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摘要: Diatoms dominate spring bloom phytoplankton assemblages in temperate waters and coastal upwelling regions of the global ocean. Copepods usually zooplankton these are prey many larval fish species. Recent laboratory studies suggest that diatoms may have a deleterious effect on success copepod egg hatching. These findings challenge classical view marine food-web energy flow from to by means copepods. Egg mortality is an important factor population dynamics, thus, if situ effect, paradoxically, high diatom abundance could limit secondary production. Therefore, current understanding transfer primary production fisheries some most productive economically ecosystems be seriously flawed. Here we present estimates hatching twelve globally distributed areas, where assemblage. We did not observe negative relationship between either biomass or dominance microplankton any regions. The model for diatom-dominated system remains valid.

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