1997 The Environment Agency (EA) Tamar and Lynher Rivers and Estuaries Shad surveys and records

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. 商业鲑鱼渔民捕获的鲢鱼物种及银鲢（银鲢物种识别经专家检验确认）记录；
2. 钓鱼爱好者、垂钓俱乐部及商业鲑鱼和海鳟河口渔民捕获的鲢鱼及银鲢（银鲢物种识别经专家检验确认）记录；
3. 在Gunnislake鱼栏捕获并检验的银鲢记录；
4. 在Gunnislake鱼栏由鱼计数员计数并透过摄像机录像观察，在潮汐极限上游移的鲢鱼（据鱼栏记录推测为银鲢）记录；
5. 活体鲢鱼目击记录；
6. 死亡鲢鱼尸体记录；
7. 鲢鱼卵的调查记录。在河口或河流中使用标准长柄底栖无脊椎动物踢网法及采样技术进行的卵调查。原始数据库由环境署保存。如对数据库中包含的数据有任何疑问，请联系Robert Hillman（参见联系方式）。