open access

https://hdl.handle.net/2115/57137

Improvement of an aquaculture site-selection model for Japanese kelp (Saccharina japonica) in southern Hokkaido, Japan : an application for the impacts of climate events

英語

Sea surface nitrate

2013-11

Oxford University Press

ICES Journal of Marine Science

70(7)

1460-1470

Japanese kelp (Saccharina japonica) is one of the most valuable cultured and harvested kelp species in Japan. In this study, we added a physical parameter, sea surface nitrate (SSN) estimated from satellite remote sensing data, to develop a suitable aquaculture site-selection model (SASSM) for hanging cultures of Japanese kelp in southern Hokkaido, Japan. The local algorithm to estimate SSN was developed using satellite measurements of sea surface temperature and chlorophyll-a. We found a high correlation between satellite- and ship-measured data (r(2) = 0.87, RMSE = 1.39). Multi-criteria evaluation was adapted to the SASSM to rank sites on a scale of 1 (least suitable) to 8 (most suitable). We found that 64.4% of the areas were suitable (score above 7). Minamikayabe was identified as the most suitable area, and Funka Bay also contained potential aquaculture sites. In addition, we examined the impact of El Nino/La Nina-Southern Oscillation (ENSO) events on Japanese kelp aquaculture and site suitability from 2003-2010. During El Nino events, the number of suitable areas (scores 7 and 8) decreased significantly, indicating that climatic conditions should be considered for future development of marine aquaculture.

学術雑誌論文

Accepted Manuscript

This is a pre-copyedited, author-produced PDF of an article accepted for publication in [ICES journal of marine science] following peer review. The definitive publisher-authenticated version [ICES J. Mar. Sci. (2013) 70 (7): 1460-1470] is available online at: http://icesjms.oxfordjournals.org/content/early/2013/08/24/icesjms.fst108.

1054-3139

1095-9289

AA10807391