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91.
The distribution and abundance of Japanese common squid [Todarodes pacificus (Steenstrup, 1880)] paralarvae off southern Kyushu Island near the Kuroshio were examined in relation to water types in the
region. Surveys were conducted in 1996 and 1997 using paired, 70 cm diameter Bongo nets. Temperature–salinity plots from 0,
50 and 100 m depths were used to assign sampling stations to three water types: inshore, mixing and Kuroshio. In total, 4103
T. pacificus paralarvae were collected at 59 of 72 stations. Catch densities at positive stations ranged between 8 and 4282 ind./50 m2 sea surface area. Catches during both years were highest in mixing waters, followed by inshore and Kuroshio waters. Total
catches were highest just north of the oceanographic front at the inshore edge of the Kuroshio and declined with increasing
distance away from the front. Catches of paralarvae ≤1.0 mm mantle length also peaked near the front. In both years, ≥85%
of all paralarvae and ≥69% of those ≤1.0 mm mantle length occurred less than 25 km from the front. We conclude that most spawning
off southwest Kyushu occurs near the frontal zone, where Kuroshio and inshore waters meet.
Received: 18 November 1998 / Accepted: 11 May 1999 相似文献
92.
Mori Hetarthi Kundaliya Jenil Naik Khushi Shah Manan 《Environmental science and pollution research international》2022,29(32):47969-47987
Environmental Science and Pollution Research - IoT plays an important role in the overall development and advancement of the country as it is the key ingredient for the development of the smart... 相似文献
93.
Mori Masanobu Hiratsuka Ikuto Itabashi Hideyuki Nakarai Kenichiro Inui Toru 《Journal of Material Cycles and Waste Management》2022,24(4):1228-1236
Journal of Material Cycles and Waste Management - The radioactive cesium (radio-Cs) released following the Fukushima Daiichi Nuclear Power Plant accident was unevenly distributed in soil, sediment,... 相似文献