Swedish National Integrated Fish Monitoring of Eelpout, Viviparous Blenny (1994-2003)

Within the National Monitoring Programme yearly investigations are carried out in three reference areas (see also 'Referensomraden' och' COBRA'); Holmoarna in the Northern Quark, Kvadofjarden in the Baltic Sea and Fjallbacka in the Skagerrak. Investigations in a fourth area in the southern Baltic Sea started in 2002. The aim of the programme is to follow up the natural variations in stock development, species composition, abundance and age class strength for the coastal fishery in areas not influenced by human activities. The main focus is on fish, but it also includes hydrography and soft bottom fauna. Eelpout is found along large parts of the Swedish coast. The species is stationary and therefore suitable for control of the effects of environmental toxins. Fishing for eelpout takes place in late autumn. Abundance and reproductivity are studied. Pregnant females are also investigated. Fecundity, fry growth, fry surveillance and fry deformities are analyzed on live baring females. The programme is financed by the Swedish Environmental Protection Agency and is performed in cooperation with the Museum of Natural History. Gothenburg University performs biochemical and physiological studies on perch and eelpout, and samples from perch and eelpout are used for the Museum's Monitoring Programme. The results are displayed yearly in the reports from the marine centres in Umea, Stockholm and Gothenburg. See also Swedish National Environment Contaminant Monitoring for Eelpout, Viviparous Blenny (1988-).

在国家监测计划框架下，每年对三个参照区域进行年度调查（亦参见'Referensomraden'及'COBRA'）；分别是北奎克地区的Holmoarna、波罗的海的Kvadofjarden以及斯卡格拉克地区的Fjallbacka。自2002年起，对波罗的海南部的一个第四区域的调查工作亦已启动。本计划的宗旨在于追踪沿海渔业未受人类活动影响区域的种群发展、物种组成、丰度和年龄结构等自然变化。主要研究焦点在于鱼类，同时亦涵盖水文学和软底生物群落。鳗鱼在瑞典海岸线的广大区域均有分布。该物种定居性强，因此适用于监控环境毒素的影响。鳗鱼的捕捞活动通常在深秋进行。对丰度和繁殖力进行深入研究，同时对妊娠雌性进行考察。对活产雌性进行分析，包括其繁殖力、幼鱼生长、幼鱼监测和幼鱼畸形等方面。该计划由瑞典环境保护署资助，并与自然历史博物馆合作实施。哥德堡大学对鲈鱼和鳗鱼进行生化及生理学研究，并使用鲈鱼和鳗鱼的样本为博物馆的监测计划提供支持。年度报告由乌普萨拉、斯德哥尔摩和哥德堡的海洋中心发布。此外，有关鳗鱼、胎生鳚（1988-）的瑞典国家环境污染物监测亦可供参考。