排序方式： 共有9条查询结果，搜索用时 15 毫秒
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MICHIO AOYAMA HIROHITO GOTO HITOMI KAMIYA IKUO KANEKO SATOSHI KAWAE HIROKI KODAMA YASUSHI KONISHI KENN-ICHI KUSUMOTO HISATO MIURA EIICHI MORIYAMA KIYOSHI MURAKAMI TOSHIYA NAKANO FUTOSHI NOZAKI DAISUKE SASANO TAKAO SHIMIZU HIROKI SUZUKI YASUSHI TAKATSUKI AKITO TORIYAMA 《Fisheries Oceanography》2008,17(3):206-218
Impact of climate change on marine biogeochemical parameters and ecosystem is one of the important issues of our environment. Direct evidence of marine pelagic ecosystem changes is found with warming of sea water and sea‐level rise in the main stream of the Kuroshio in the East China Sea and the western North Pacific during these three decades based on the analysis of long‐term comprehensive hydrographic observations. In terms of annual mean, the warming rate of surface air temperature and sea surface temperature ranged from 0.15 to 0.21°C per decade in and around the main stream of the Kuroshio in the East China Sea, which exceed the global mean warming rate of 0.128 ± 0.026°C per decade during the period from 1956 to 2005 reported in IPCC 2007. One of the features in this rapid warming region is an increase of number of Pterosagitta draco, a cosmopolitan warm‐water zooplankton. Biogeochemical parameters, such as wet weight of zooplankton, plant pigment and nutrients concentration in the upper 200 m have been decreasing while dissolved oxygen content and seawater temperature have been increasing in the upper 200 m in the main stream of the Kuroshio in the East China Sea. These observed linear trends of the biogeochemical parameters would be foresights for temperate oceans in the future. 相似文献
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Nozaki K Nuyim T Shinano T Hamada S Ito H Matsui H Osaki M 《Plant foods for human nutrition (Dordrecht, Netherlands)》2004,59(3):85-92
We investigated the relationships between starch concentrations and activities of starch synthetic enzymes in sago palms (Metroxylon sagu Rottb.) under acid sulfate and mineral soil conditions. Plants grown naturally that had reached their maturated stage were sampled. We found that the growth in acid sulfate soil is lower than that in mineral soil and that starch granules were larger and there was more amylase activity in acid sulfate soil than in mineral soil. Lower amylase activity in mineral soil could eliminate the degradation of starch, making the smaller granules suitable for storing large amounts of starch in a limited space inside cells. 相似文献
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ABSTRACT: To utilize Antarctic krill as functional food, protein hydrolysates were prepared by enzymatic hydrolysis. Their effects on the state of water in myofibrils of lizard fish and dehydration-induced denaturation were compared with those from two species of shrimp, glucose, and sodium glutamate. Peptides are major components in hydrolysates, occupying approximately 85–93% of the total materials. The Antarctic krill protein hydrolysates stabilized the bonding of water molecules, leading to suppressed denaturation of myofibrils during the dehydration process. Similar effects were observed for shrimp protein hydrolysates. The effect of the hydrolysate was less than that by glucose and sodium glutamate. 相似文献
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Mohammed Abu Ali KHAN Mohammed Anwar HOSSAIN Kenji HARA Kiyoshi OSATOMI Tadashi ISHIHARA Yukinori NOZAKI 《Fisheries Science》2003,69(6):1271-1280
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Seasonal variation in docosahexaenoic acid content in horse mackerel caught in the East China Sea 总被引：3，自引：0，他引：3
Kazufumi OSAKO Akira YAMAGUCHI Takao KUROKAWA Koichi KUWAHARA Hiroaki SAITO Yukinori NOZAKI 《Fisheries Science》2003,69(3):589-596
ABSTRACT: The fatty acid composition in horse mackerel caught off Nagasaki, off Tsushima Island, and in the middle of the East China Sea was investigated. The ratios of monoenoic and polyenoic acids to the total fatty acids in the Nagasaki and bull trawl catch specimens had a negative correlation. The docosahexaenoic acid (DHA; 22:6n-3) ratios of total fatty acids in summer-caught specimens were lower than those in winter-caught specimens, and this tendency was significantly clearer in smaller-sized fish, while DHA levels in tissues varied little throughout the year. Consistently high levels of DHA were found in various fishing areas, which suggests that horse mackerel offers a stable source of DHA. 相似文献
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Kazufumi OSAKO Akira YAMAGUCHI Takao KUROKAWA Koichi KUWAHARA Hiroaki SAITO Yukinori NOZAKI 《Fisheries Science》2002,68(3):587-594
ABSTRACT: The chemical components and body color of horse mackerel caught between July 1997 and May 2000 were studied. The fish were caught with small- to medium-sized purse seine offshore from Nagasaki and from Tsushima, and with bull trawl seine and medium- to large-sized purse seine in the East China Sea. The crude lipid content of the fish caught offshore from Tsushima was higher than that of the others, and there were no significant differences among the other catches. The extractive nitrogen content of the fish caught with bull trawl seine was somewhat lower than that of the others. The body colors of the fish differed from those suggested by their common names: Kuroaji (black) , Kiaji (yellow), and Shiroaji (white). The crude lipid content and body color indicated that there was no difference in quality among the catches, with the exception of the crude lipid content of the Tsushima catch. 相似文献
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