您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Critical bait casting threshold of cage culture in open advective environments

文献类型： 外文期刊

作者： Li, Shuai 1 ; Zhou, Jin 2 ; Yuan, Sanling 1 ;

作者机构： 1.Univ Shanghai Sci & Technol, Shanghai 200093, Peoples R China

2.Chinese Acad Fishery Sci, East China Sea Fishery Res Inst, Shanghai 200090, Peoples R China

关键词： Reaction-diffusion-advection; Net reproductive rate; Bifurcation; Cage culture; Persistence

期刊名称：APPLIED MATHEMATICS LETTERS （ 影响因子：4.294； 五年影响因子：3.626 ）

ISSN： 0893-9659

年卷期： 2022 年 134 卷

页码：

收录情况： SCI

摘要： Cage culture, as a kind of aquaculture, is increasingly becoming the main way to provide aquatic products due to its merits of high output and easy management. However, the main issue for the fishermen to be concerned about is the determination of the reasonable amount of casting bait since excess feeding bait will not only deteriorate water quality but also increase farming costs while too little bait casting cannot meet the demand for capture. To this end, in this letter, we formulate a diffusive bait-fish model with advection term, aiming to determine the bait casting threshold that meets the demand for the breeding and causes less pollution to the water environment. We first prove the well-posedness of the proposed model. Then we define the net reproductive rate R0 determining the survival of the model and reveal the relationship between R0 and the bait casting rate. Besides, we show that the proposed model undergoes a forward supercritical transcritical bifurcation when the bait casting rate is equal to the critical value. Finally, we resort to a numerical example to support our theoretical results. (C) 2022 Elsevier Ltd. All rights reserved.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台