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31.
Competitive shore‐based sport fishing is a popular recreational activity in the Maltese Islands. However, prior to this study, no scientific research surveys had been carried out during sport fishing competitions to investigate catches. Collaboration with Maltese sports fishermen was developed to target sustainable management. Recreational fishing catches were recorded between July 2012 and December 2015 by means of 1,633 roving‐access creel surveys, conducted during 79 sport fishing competitions, totalling a fishing effort of 7,548 hr. A total of 29,916 fish belonging to 80 species from 26 different families were caught at a mean catch‐per‐unit‐effort (CPUE) of 4.16 fish angler/hr (SD ± 3.79) and 0.18 kg angler/hr (SD ± 0.17) but with seasonal variation. Catch‐and‐release practices were implemented by all Maltese sport fishing clubs, however, the mean mortality rate stood at 35.5% (SD ± 42.1), indicating that more effort is required to improve survival of fish. The study outcomes provide conservation recommendations.  相似文献   
32.
海南“石斑鱼苗网”渔具属性辨析   总被引:1,自引:2,他引:1  
冯波  卢伙胜 《海洋渔业》2006,28(4):346-349
对在2004年7~8月间南海区小型海洋渔具渔法调查中发现的“石斑鱼苗网”的渔具结构、属性、性能和管理进行了分析讨论,研究认为“石斑鱼苗网”属于敷网类,网团型,延绳式。对石斑鱼苗有良好的诱捕效果,从保护资源的角度出发,应对其实施规范管理。  相似文献   
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34.
蟹笼渔船诱捕饵料在使用过程需要经过破冰分离、切块、填盒、塞笼等工序,效率低、劳动强度大.为提升蟹笼渔船的生产效率,需要实现饵料使用自动化.提出了一种实现饵料使用自动化的流水线生产方案,并通过Pro/ENGINEER Wildfire 5.0进行流水线的结构设计建模与原理分析,采用GX works3基于三菱FX5U系列P...  相似文献   
35.
本文根据2009年8月至12月福建省捕捞业渔具渔法普查资料,分析整理了福建内陆地区捕捞业渔具渔法现状调查数据.结果表明:福建内陆地区捕捞渔具有刺网类、钓具类、笼壶类、拖网类、张网类、陷阱类、耙刺类、地拉网类、敷网类、掩罩类、抄网类和杂渔具等12个类别、21种作业型式、渔具总数量123204张(个、顶等).按渔具类别划分...  相似文献   
36.
杨德康 《水产学报》1991,15(1):77-81
太平洋丛柔鱼(Todarodes pacificus steenstrup)的年产量,在八十年代高达四、五十万吨,占目前世界头足类年产量的三分之一左右,是世界最重要的头足类资源。丛柔鱼的分布区局限于太平洋,主要分布在日本群岛周围海域,其群体密度最高;在黄海北部和东海外海的分布区,也有一定产量,主要为流网和底拖网所兼捕。本文论述东海长江口渔场、舟山渔场内太平洋丛柔渔资源的分布密度以及它与不同水系交汇形成流隔的密切关系;五、六月份柔鱼鱼发适温为16—17℃,柔鱼群体栖息活动水层与浮游  相似文献   
37.
渔用浮标定位监视系统   总被引:1,自引:0,他引:1  
介绍了几种常用的渔用浮标定位监视系统的基本组成、工作原理及各自的特点。着重对GPS渔用浮标定位监视系统的模式及各组成部分的功能和设计的关键技术进行了讨论。采取适当方法解决关键技术后,使GPS渔用浮标定位系统具有较强的抗干扰能力和信息自动交换能力,特别适合在海洋中容易漂移的渔具、航行器等设备中作位置监视、搜寻之用。  相似文献   
38.
Abstract Inland fisheries in England and Wales have high economic and social values. Managing participation to maximise fishery performance is key to maintaining this status. The capital value of fishing rights for migratory salmonid fisheries is €165 million. Coarse fisheries contribute €1030 million to the economy. The central tenet to increasing participation in recreational salmonid fisheries is that an increase in stock size will result in more anglers accessing the fishery. This was examined for salmon on the rivers Usk and Lune where exploitation restrictions increased the number of salmon available to anglers. On the River Lune, the number of salmon available post‐intervention increased by 66%. There was no significant increase in catch while the number of anglers decreased by 16.3%. On the River Usk, the closure of the net fishery potentially resulted in an additional ~1200 salmon being available. Following closure, there was no significant change in rod catch or in the number of anglers. Increased participation is dependent less upon stock manipulation for coarse fisheries and more upon facilitating the activity. In recent years, urban fishery development programmes have provided improved access to local fishing opportunity. Also, new anglers have been targeted through campaigns such as Get Hooked on Fishing and the Scout Angler Badge.  相似文献   
39.
灯笼鱼属于中深海鱼类,广泛分布于全球各大洋中,资源量巨大。灯笼鱼通常被用于加工饲料鱼粉和鱼油,市场价值较低,因此被称为低值鱼类,长期不被人们重视。近年来,随着海洋渔业资源日趋紧张,人们开始重新关注全球的灯笼鱼资源,在灯笼鱼的资源调查、探捕和产品加工方面进行了大量的研究和实践,开发出了可供人类消费的灯笼鱼食品。尽管在灯笼鱼的研究和开发利用方面还有许多问题尚待解决,但是越来越多的渔业专家对灯笼鱼资源开发利用的前景抱有信心。  相似文献   
40.
  1. Understanding how different forms of environmental evidence inform the actions of different stakeholders is useful to improve how we share knowledge with knowledge users. Reflections on a literature review that we published in 2004 on circle hooks as a tool for fish conservation in the recreational fishing sector identified a number of ways in which that synthesis was influential.
  2. The article has had direct influence on policy and regulations in a number of countries, but there were even more examples of where the article has been used to influence voluntary guidelines. The article also contributed to formally defining circle hooks, which was necessary from a regulatory and enforcement perspective.
  3. The recreational fishing community has also embraced the work, with numerous angling articles based on the literature review appearing in the media and with some angler organizations pushing for the adoption of circle hooks. The fishing tackle industry has also responded with evidence that circle hooks are now more widely available in stores with more hook design options to suit diverse recreational fisheries. In addition, the influence of the article has extended beyond the recreational sector to commercial fishery issues that span several taxa. The research agenda from the article helped to direct research for more than a decade and has since been updated.
  4. Overall, this review was timely in that it provided various knowledge users with credible information synthesized in a thoughtful manner at a time when there was interest and need in exploring circle hooks as a tool to enhance the conservation of angled fish. Although this was not a systematic review, it still served as a form of evidence synthesis that gave diverse knowledge users information to guide them in their decisions.
  相似文献   
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