Chemical Features of the Subarctic Boundary Near 170°W
During the Yaloc 66 cruise of R/V Yaquina, the vertical distribution of nutrients, pH alkalinity, apparent oxygen utilization, preformed phosphate, preformed nitrate, and specific alkalinity across the subarctic boundary near 170°W were studied. In addition to use of salinity to identify the subarct...
| Published in: | Journal of the Fisheries Research Board of Canada |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Canadian Science Publishing
1967
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/f67-080 http://www.nrcresearchpress.com/doi/pdf/10.1139/f67-080 |
| Summary: | During the Yaloc 66 cruise of R/V Yaquina, the vertical distribution of nutrients, pH alkalinity, apparent oxygen utilization, preformed phosphate, preformed nitrate, and specific alkalinity across the subarctic boundary near 170°W were studied. In addition to use of salinity to identify the subarctic boundary, the surface distributions of nutrients, pH, and preformed nutrients were found to be useful. Both the density-apparent oxygen utilization relationships and the specific alkalinity pattern indicated upward divergence of subsurface water having salinity greater than 34.0‰ on the north side of the boundary. A high specific alkalinity of about 0.129 immediately north of the boundary was probably due to the transport of upwardly diverged water having high specific alkalinity to near the boundary. Values for preformed phosphate and preformed nitrate gave supporting evidence that the origin of the salinity-minimum water located south of the boundary is in the subarctic region. |
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