描绘 发表于 2025-3-25 04:18:57
http://reply.papertrans.cn/32/3154/315354/315354_21.pngmediocrity 发表于 2025-3-25 09:41:39
On Optimal Harvesting of Fluctuating Fish Stocks: The Case of the Arcto-Norwegian Codies in the ArctoNorwegian cod fishery; constant catch quotas and constant effort quotas. There are obvious advantages of stabilizing either of these. Stabilizing the annual catch will eliminate uncertainty in the processing industry, provide stable inputs and may facilitate marketing. Stabilizing fisynovial-joint 发表于 2025-3-25 12:48:04
http://reply.papertrans.cn/32/3154/315354/315354_23.png跟随 发表于 2025-3-25 18:44:47
https://doi.org/10.1007/978-1-4614-8763-0ns by Hannesson (1983), Falk (1985), Conrad and Adu-Asamoha (1986), Ragozin and Brown (1985), Flaaten (1988) and Tu (1988). For the predator-prey case, the typical approach has been to assume that cost functions are linear in effort, resulting in bang-bang and singular controls..eucalyptus 发表于 2025-3-25 23:41:16
http://reply.papertrans.cn/32/3154/315354/315354_25.png柱廊 发表于 2025-3-26 01:55:26
Introductionose of mainly theoretical and those of mainly empirical orientation. The reader should note, however, that some of the empirical papers have a considerable theoretical content. Thus, this classification is by no means precise.含糊其辞 发表于 2025-3-26 06:38:36
http://reply.papertrans.cn/32/3154/315354/315354_27.pngMitigate 发表于 2025-3-26 10:49:06
http://reply.papertrans.cn/32/3154/315354/315354_28.pngABYSS 发表于 2025-3-26 16:37:01
http://reply.papertrans.cn/32/3154/315354/315354_29.png引起 发表于 2025-3-26 16:46:59
http://reply.papertrans.cn/32/3154/315354/315354_30.png