科研之友
微信
新浪微博
Facebook
分享链接
摘要
We describe a simple combined-quadrat-sieve system, suitable for in-river surveys of unionoid populations where SCUBA is required. The apparatus has allowed us to survey and excavate 0.25-m(2) quadrats with mean search times of %26lt;7 mm quadrat(-1) over 4-hour dives. We have successfully detected mussels near the minimum size, more often retrieved by sieving at the surface, while minimizing habitat disturbance.
- 出版日期2014-3
