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131.
Daisuke Yamanaka Kazumi Sakuramoto Naoki Suzuki Tohru Nagasawa 《Fisheries Science》2007,73(4):837-844
Catch forecasting and the relationship between water temperature and catch in the snow crab Chionoecetes opilio in the western Sea of Japan were investigated. Catch was used as an index of abundance on the basis of high correlations
between catch per unit effort for the period when the latter data were available. The pattern of fluctuations, in catches
and index coincided well with each other. Therefore, catch data were regarded as an index of abundance and the correlation
coefficient between catch and water temperature was calculated at several depths from 1964 to 1999. Catch forecasting models
were composed using significantly correlated variables with the following results: (i) in April and September, the catch showed
high positive correlation with water temperatures (depth 50, 100, and 200 m, time lag 4–6 years); and (ii) a model using water
temperatures in April alone (depth 100 m, time lag 4–7 years) forecasted the catches with a coefficient of determination of
0.504, where models using more variables (water temperatures in the 2 months and catches) showed a coefficient of 0.587 at
most. Environmental conditions during the early life stages of the snow crab are thought to deeply influence the fluctuations,
in abundance. 相似文献
132.
Yusuke Ozai Akiko Uemura Ryou Tanaka Aki Takeuchi Lina Hamabe Kazumi Shimada Aimi Yokoi Miki Hirose Momoko Watanabe Katsumi Uehara 《Journal of veterinary science (Suw?n-si, Korea)》2022,23(4)
Patent ductus arteriosus (PDA) is a rare congenital cardiovascular anomaly in cats. Due to their small body, intercostal thoracotomy is the most common option to close the PDA. However, few reports detail the surgical technique for ligating PDA in kittens. In this case report, three cats weighing 1.4 kg, 1.2 kg, and 2.9 kg were diagnosed PDA. Clip ligation via left fourth intercostal thoracotomy was performed and the cats were successfully treated. Postoperative echocardiography showed no residual flow in any of the cases. This case report highlights clip occlusion for small cats with PDA could be safe and effective. 相似文献