Anchoring Submersible Ultrasonic Receivers in River Channels with Stable Substrate

被引：3

作者：

Bettoli, Phillip W. ^{[1
]}

Scholten, George D. ^{[2
]}

Hubbs, Don W. ^{[3
]}

机构：

[1] Tennessee Technol Univ, US Geol Survey, Tennessee Cooperat Fishery Res Unit, Cookeville, TN 38505 USA

[2] Iowa Dept Nat Resources, Des Moines, IA 50319 USA

[3] Tennessee Wildlife Resources Agcy, Nashville, TN 37204 USA

来源：

NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT | 2010年 / 30卷 / 04期

关键词：

MIGRATION; SYSTEM;

D O I：

10.1577/M10-015.1

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

We developed an anchoring system for submersible ultrasonic receivers (SURs) that we placed on the bottom of the riverine reaches of three main-stem reservoirs in the upper Tennessee River. Each anchor consisted of a steel tube (8.9 x 35.6 cm) welded vertically to a round plate of steel (5.1 x 40.6 cm). All seven SURs and their 57-kg anchors were successfully deployed and retrieved three times over 547 d by a dive team employing surface air-breathing equipment and a davit-equipped boat. All of the anchors and their SURs remained stationary over two consecutive winters on the hard-bottom, thalweg sites where they were deployed. The SUR and its anchor at the most downriver site experienced flows that exceeded 2,100 m(3)/s and mean water column velocities of about 0.9 m/s.

引用

页码：989 / 992

页数：4