An Evaluation of the Selectivity Characteristics of Different Juvenile Fish Escape Panel Designs for

来源 :海洋科学期刊(英文) | 被引量 : 0次 | 上传用户:goodhope9010
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The selectivity characteristics of 4 juvenile fish escape panel designs and their utility for the regulation of a multi-species demersal trap fishery were evaluated using a suite of objective socio-economic and biological criteria. The panel designs consi
其他文献
In order to know the role of plant woody debris in the carbon cycle, a study of carbon stocks and carbon flow of plant woody debris was conducted in the natural
我厂生产的LR105东方红柴油机缸盖,端面上有一个φ42<sub>0</sub><sup>+0.05</sup>mm、表面粗糙度值R<sub>a</sub>3.2的水堵孔。缸盖材质为HT250,毛坯铸造底孔φ33mm,凸台
In the Amazonian rainforest, many species of Burseraceae known locally as “breu” are explored for the medicinal and aromatic uses of their trunk exudates. Thi
Based on data from the investigation in Jiaozhou bay waters in 1979, the distribution, pollution source and seasonal variation of PHC in Jiaozhou Bay are analyz
西秦岭合作一带华日组岩性以中酸性火山岩为主,岩性为英安岩、安山岩、火山角砾岩和凝灰岩。通过对其岩石地球化学研究,表明华日组火山岩属钙碱性系列,具高K、高AI和低碱、低
采用体外预应力竖向张拉双折线布筋方法,对2根矩形对比梁,三组不同预应力筋配筋率、不同工况的9根矩形钢筋混凝土简支梁进行了加固试验研究。在考虑二次效应、体外预应力筋有
Prescribed burning and tree thinning are commonly used restoration practices for US forests management to increase forest productivity and enhance plant and ani
The Cross River Rainforest of South Eastern Nigeria is one of Africa’s last remaining areas of pristine tropical high forest, extremely rich in a wide variety
劳资关系是新民主主义社会中重要的经济关系之一。它的平稳和正常与否直接影响着国民经济的恢复与发展,乃至整个社会的安定团结。解放初期,由于受到战争的侵扰,苏州市许多私
<正> 图1所示冲件,是我厂生产的某产品上所用重要联接零件。因其壁厚较薄且生产批量大,故我厂采用了冲压加工。因其为双凸缘筒形件,当大凸缘被冲切成形后,便给翻、切另一凸缘