Accession Number:

AD0657294

Title:

THE QUALITATIVE AND QUANTITATIVE COMPOSITION OF PHYTOPLANKTON AND ITS DISTRIBUTION IN THE WATERS OF SOUTH SAKHALIN AND THE SOUTHERN KURILE ISLANDS,

Descriptive Note:

Corporate Author:

NAVAL OCEANOGRAPHIC OFFICE WASHINGTON D C

Personal Author(s):

Report Date:

1967-01-01

Pagination or Media Count:

27.0

Abstract:

In the south Sakhalin area, the greatest quantities and varieties of phytoplankton are observed off the west coast of Sakhalin, the smallest in Zaliv Terpeniya. The phytoplankton consists almost exclusively of diatom algae and dinoflagellates. Neritic species prevail over oceanic forms. Phytogeographically, boreal forms prevail, making up more than 50 of the total number of species. The percentage of temperate thermophilic and thermophilic species varies from place to place, the maximum being reached 29.3 in the southern sector of the Sea of Okhotsk, then following the west coast of south Sakhalin 27.1. Admixture of cryophilic forms arctic and arctic boreal is most clearly pronounced in Zaliv Aniva 19, most weakly off the west coast of south Sakhalin. The quantity of phytoplankton is extremely variable during the summer season July-Sept.. In the Kurile Islands area, the phytoplankton is represented mainly by diatom algae and dinoflagellates. The greatest diversity was observed in the South Kurile Strait. Neritic species prevail over oceanic forms. Boreal species prevail. The percentage of temperate thermophilic and thermophilic species in phytoplankton is rather high 27.7-28.4. The quantity of phytoplankton in the South Kurile Strait is rather high, reaching 700-900 thousand cells per 1 liter of water. In the Pacific area the quantity is not uniform near ostrov Shikotan and Zelenyy the quantity is much higher than far off the coast. In summer the greatest development of phytoplankton was observed in the coastal belt of the southern Kurile Islands. Author

Subject Categories:

  • Biology
  • Biological Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE