Concentrations of dinoflagellate cysts in the surface layer of bottom sediment from the White Sea

Dinoflagellate cysts were studied in 42 samples from surface sediments of the White Sea. Total concentration of dinocysts varies from single cysts to 25000 cyst/g of dry sediments, which reflects biological productivity in White Sea waters and regional particular features of sedimentation processes....

Full description

Bibliographic Details
Main Authors: Novichkova, Ekaterina A, Polyakova, Elena I
Format: Dataset
Language:English
Published: PANGAEA 2007
Subjects:
Archive of Ocean Data
ARCOD
Counting >10 µm fraction
Depth
bottom/max
top/min
Dinoflagellate cyst per unit mass
Ekolog
Ekolog-2002
Ekolog-2002-10
Ekolog-2002-15
Ekolog-2002-16
Ekolog-2002-3
Ekolog-2002-32
Ekolog-2002-4
Ekolog-2002-40
Ekolog-2002-43
Ekolog-2002-59
Ekolog-2002-62
Ekolog-2002-75
Ekolog-2002-76
Ekolog-2002-77
Ekolog-2002-78
Ekolog-2002-88
Event label
Grab
IPE-2002
IPE-2002-39
IPE-2002-40
Ivan Petrov
Latitude of event
Lithology/composition/facies
Longitude of event
MULT
Multiple investigations
Professor Shtokman
PSh49
PSh49-4684
PSh49-4687
PSh49-4693
PSh49-4694
PSh49-4697
PSh49-4699
PSh49-4700
PSh49-4701
PSh49-4702
PSh49-4703
PSh49-4704
Barents Sea
Onega
Severnaya Dvina
White Sea
dvina
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.727235
https://doi.org/10.1594/PANGAEA.727235
Description
Summary:Dinoflagellate cysts were studied in 42 samples from surface sediments of the White Sea. Total concentration of dinocysts varies from single cysts to 25000 cyst/g of dry sediments, which reflects biological productivity in White Sea waters and regional particular features of sedimentation processes. The highest concentrations are observed in silts; they are related to the regions of propagation of highly productive Barents Sea waters in the White Sea. Generally, spatial distribution of dinocyst species in the surface sediments corresponds to distribution of the major types of water masses in the White Sea. Cysts of relatively warm-water species (Operculodinium centrocarpum, Spiniferites sp.) of North Atlantic origin that dominate in the sediments indicate an intensive intrusion of Barents Sea water masses to the White Sea along with hydrological dwelling conditions in the White Sea favorable for development of these species during their vegetation period. The cold-water dinocyst assemblage (Islandinium minutum, Polykrikos sp.) is rather strictly confined to inner parts of shallow-water bays, firstly, those adjacent to the Onega and Severnaya Dvina river mouths.

Similar Items