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Offshore Surface 406 Kuroshio Extension, warm water mass waters

Note; The offshore surface areas have many physically fluid factors such as ocean current or seasonal changes, which may effect on the spawning grounds or distribution areas of certain organisms. Therefore, it is difficult to fix certain area as EBSAs of offshore surface spatially. In addition, available data for analysis are very limited. Therefore, the EBSAs of offshore surface shows the probabilistic distribution of important area as a result of mechanical analysis using best available data at the time, so that there are problems such as that some places considered to be consecutive from the ecological features are divided. Further analysis will be required to improve when the data became available in the future, and it is necessary to review the analysis method.

Basic Information A separate window opensReferences

Area (km2) 4502

Reason(s) for selection A separate window opensCriteria

Selected by MARXAN software

Characteristics A separate window opensReferences

These waters are a part of the warm water mass formed when currents of the Kuroshio Current flow southward in the Kuroshio Current's subtropical zone. In the area of the currents and southward, spawning grounds are found for Pacific saury and neon flying squid. To the north of these currents is an expansive zone in which the Kuroshio-Oyashio transition region.

(Note: Same as No. 402)

Species information (*) A separate window opensData source


* This is the species list of which meet the criteria. In that matter, this list does not include all species that inhabit the individual area.
Abbreviation in the information is as follows.
[Br/Ne] : Adjacent water of breeding area or nesting site
[Sp] : Spawning area


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