English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Epiplanktonic copepods were sampled on 10 cruises in the Pacific central gyres, 7 in the north gyre and 3 in the south gyre, between 1964 and 1973. These gyres are the largest biomes, stable, ancient, down-welling, oligotrophic and with little temporal variation. The data from each cruise were standardized to numbers per 10 3  m 3 ; no data from the south gyre cruises has been published before. The structure of the communities was analysed with species-abundance curves and ordination. One hundred and eighty-two species were found in all, 118–158 per cruise, 73 in all cruises. Double-centred ordination of those 73 showed three distinct sets of cruises: south (Isaacs-Kidd net), north (Isaacs-Kidd net) and north (bongo net). The distance in species-space between the north and south gyres is the same but orthogonal to the distance between samples collected by the two nets! Sixteen species abundance distributions (SADs), from 10 cruises and 6 combinations of them, were used to test the hypotheses that such distributions are mildly platykurtic and increasingly left-skew with increasing sample size. All SADs were sigmoidal on rank abundance plots of the log abundance, and agreed with the hypotheses, clarifying the mathematical form. Such replicated, large sample, SADs are rare.

The copepod communities of the north and south Pacific central gyres and the form of species-abundance distributions