2005 The Environment Agency (EA) Tamar and Lynher Rivers and Estuaries Shad surveys and records
收藏资源简介:
1. Records of Shad sp. and Allis Shad catches by commercial salmon netsmen (Allis Shad where species identification confirmed from examination by expert); 2. Records of Shad and Allis Shad (Allis Shad where species identification confirmed from examination by expert) caught by rod anglers, angling clubs and commercial salmon and sea trout estuary netsmen; 3. Records of Allis Shad caught and examined at Gunnislake Fish Trap; 4. Records of Shad (presumed Allis Shad as inferred from trap records) counted by Gunnislake Fish Counter and observed on camera footage as they migrate upstream at the tidal limit; 5. Sightings of live Shad; 6. Records of dead Shad carcasses; 7. Records of Shad egg surveys. Egg surveys in estuary or river using a standard long-handled macroinvertebrate kick-sampling net and technique. The original database is held by the Environment Agency. If you have any questions about data contained within it, contact Robert Hillman (see contacts).
1. 商业鲑鱼网捕作业者捕获的西鲱属(Shad sp.)物种与西鲱(Allis Shad)捕捞记录,其中西鲱的物种身份需经专家核验确认; 2. 手竿垂钓者、垂钓俱乐部及商业鲑鱼与海鳟河口网捕作业者捕获的西鲱(Shad)与西鲱(Allis Shad)捕捞记录,其中西鲱的物种身份需经专家核验确认; 3. 在冈尼斯拉克鱼栅(Gunnislake Fish Trap)捕获并经检验的西鲱(Allis Shad)记录; 4. 由冈尼斯拉克鱼量计数器(Gunnislake Fish Counter)统计、并在潮汐上限区域洄游上游时通过监控录像观测到的西鲱(Shad)记录,该类个体依据鱼栅记录推断为西鲱(Allis Shad); 5. 活体西鲱目击记录; 6. 死亡西鲱尸体记录; 7. 西鲱卵调查记录:采用标准长柄大型无脊椎动物踢扫采样网(macroinvertebrate kick-sampling net)及对应技术,在河口或河流中开展的西鲱卵调查工作记录。 本原始数据库由英国环境署(Environment Agency)保管。若对该数据库内的数据存在疑问,请联系罗伯特·希尔曼(Robert Hillman,详见联系方式)。



