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Offshore Surface 405 Eastern Kuroshio current divergence 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) 4468

Reason(s) for selection A separate window opensCriteria

Selected by MARXAN software

Characteristics A separate window opensReferences

These are waters where the Oyashio Current and the Kuroshio Current mix, referred to as a Kuroshio-Oyashio transition region (mixed water region), and a complex front structure forms here. Occasionally meandering ridges form sub-currents of the Kuroshio Current, making this an important route for transportation and migration of creatures that migrate from the Kuroshio Current zone to that of the Oyashio Current.

(Note: Same as No. 402)

Species information (*) A separate window opensData source

Criteria 2
Laemonema longipes (Threadfin hakeling) [Sp]
Watasenia scintillans (Firefly squid) [Sp]

* 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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