Bioassay of lower Narragansett Bay waters during the 1972‐1973 winter‐spring bloom using the diatom Skeletonema costatum 1 | Zendy

Hitchcock Gary L. | Zendy; Smayda Theodore J. | Zendy

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Bioassay of lower Narragansett Bay waters during the 1972‐1973 winter‐spring bloom using the diatom Skeletonema costatum 1

Author(s) -

Hitchcock Gary L.,

Smayda Theodore J.

Publication year - 1977

Publication title -

limnology and oceanography

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.7

H-Index - 197

eISSN - 1939-5590

pISSN - 0024-3590

DOI - 10.4319/lo.1977.22.1.0132

Subject(s) - bloom , diatom , bay , nutrient , spring bloom , algal bloom , spring (device) , phytoplankton , bioassay , environmental chemistry , biology , environmental science , zoology , oceanography , chemistry , botany , ecology , geology , mechanical engineering , engineering

Samples collected biweekly from lower Narragansett Bay from December 1972 through March 1973 were bioassayed with Skeletonema costatum at nine different enrichments with nutrients equivalent to f/25‐Tris medium. In early December growth rates were low in all treatments relative to complete enrichment; thereafter there was no evidence of nutrient limitation until late February. During this period of the winter–spring bloom growth was limited by the omission of NO 3 , SiO 3 , and PO 4 ; deletion of vitamins and trace metals was less important. The addition of EDTA alone increasingly suppressed growth as the bloom developed; lysis was observed during late March.

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