Abstract:
The goals of the present work are:
- to make available to the international scientific community
the most precise data carried out in the Sea of Okhotsk;
- to quantify and explain the spatial distribution patterns
of hydrochemical variables in the Sea of Okhotsk.
The main factor in formation of high biological productivity is
associated with the transport of nutrient-rich intermediate cold
waters
... into the surface layers. It has the most effect when the
vertical transport is localized spatially which occurs during the warm
period of the year. Examples of such areas are the following:
Kashevarov Bank, straits of South Kurils, and the eddies along the
Sakhalin and West Kamchatka shelves.
This publication and CD-ROM presents maps of the spatial distribution
of temperature, salinity, oxygen, percent oxygen saturation,
phosphate, nitrate, ammonium nitrogen, silicate, organic nitrogen and
phosphorus constructed using data from complex ecosystem studies by
VNIRO and TINRO during the 1990-1997 period . All maps were
constructed for July-August because all expeditions were conducted
during this period. Hydrochemical maps were constructed for horizons
(standard depth levels) of 0, 20, 50, 75, and 100 m to cover the
entire euphotic layer. Besides these maps, we also present the
vertical distribution of salinity, oxygen, phosphate, silicate,
nitrate, ammonium nitrogen, organic phosphorus and organic nitrogen at
seven sections crossing the main structures of the Sea of Okhotsk.
Concentrations of all nutrients are expressed in micromoles (?M). Such
a form of expression facilitates a comparison of nitrogen, phosphorus,
and silica stocks in the euphotic layer and solution of the problem on
the limitation of primary production within the frameworks of
Redfield-Richards model.
The most important result of this work is associated with the
identification of quasi-stationary eddy structures and illustration of
their role in formation of bioproductivity of the Sea of Okhotsk.
NOAAServer Codes: [OL 62 44 160 138] ; nodateline obtain
The Atlas was written in Russian and translated into English. The
authors have attempted to retain the original character of the text as
it was translated into English. It is published in both Russian and
English. The cited website is also accessible in both Russian and
English. 
