Electronic Supplementary Material：
Figure legends:
Online Resource 1. The light transmission (%) in the north Bering Sea and the Bering
Strait: data at both some sampling and surrounding stations
euphotic thickness
Online Resource 2. Classification of water masses in the Bering Sea Shelf: a.
Temperature-Salinity diagram; b. Cluster of station-depths composed of temperature
and salinity. BSW-S, Bering Shelf Surface Water; BSW-C, Being Shelf Cold Water
(cold pool); AW, Anadyr Water; ACW, Alaska Coastal Water, MW, depth of 20-40 m
at all the tree water masses. BSAW, Mixtures of Anadyr Water and Bering Shelf Water
(Bering Sea Water)
Online Resource 3. Distribution of nutrients (nitrogen, phosphate and silicate, μM) at
each transect: a. NB11-NB19, b. NB22-NB28, c. BS01-BS09
Online Resource 4. Distribution of Chl a (μg/dm3) at each transect: a. NB11-NB19, b.
NB22-NB28, c. BS01-BS09
Online Resource 1
Online Resource 2
Online Resource 3
Online Resource 4