Does plankton diversity peak at intermediate salinities? Comment on Telesh et al. (2011)

Marine Ecology Progress Series

Robert Ptacnik¹  Timo Tamminen¹  Sirpa Lehtinen¹  Tom Andersen¹  Kalle Olli¹ 

关键词: Plankton diversity;    Salinity;    Baltic Sea;    Remane’s curve;   

DOI  :  10.3354/meps09216

学科分类：海洋学与技术

来源: Inter-Research

【 摘 要 】

ABSTRACT: Based on an analysis of published data, Telesh et al. (2011; Mar Ecol Prog Ser 421:1–11) claim that plankton diversity peaks at intermediate salinities in the Baltic Sea. They thereby challenge Remane’s curve, which was originally derived from observations of macrozoobenthos (Remane 1934; Zool Anz 7(Suppl):34–74), and conclude that high speciation rates allowed for development of high diversity in microscopic species in the Baltic, as opposed to larger organisms. However, instead of performing appropriate statistical analyses, Telesh et al. merely pool species lists within salinity bands, thereby obtaining patterns that reflect sampling effort rather than species richness. Moreover, Telesh et al. derive patterns of richness to a considerable extent from coastal sites, including bays and lagoons, which are not representative of the corresponding salinities in the open Baltic Sea. We propose that spatially representative data are required for elucidating patterns of plankton richness along the freshwater–marine continuum. Moreover, the analysis should address both species richness and community composition by appropriate statistical tools.

【 授权许可】

Unknown