Sea scallop abundance and size in closed bottom habitats from F/V Irene Renee II NEC-BB2006-1 in the Great Wass Island, Maine from 2007-2009 (NEC-CoopRes project)

<p>A Collaborative Effort to Examine New Strategies for Managing Closed Bottom Habitats for Sea Scallops</p>

<p>Fishermen in eastern Maine wished to evaluate the efficacy of closed areas with respect to enhancement of wild sea scallops. Beginning in spring 2007, two 1 km2 zones that were once, but were no longer, productive scallop grounds were created in the Beals-Jonesport area. To determine the best methods to collect, handle, transport, and deploy wild sea scallops (5-70 mm SL), we initiated and completed experimental bottom trials in each zone over a period of 30 days beginning in late April or early May, 2008. In addition, we collected wild scallop spat (5-10 mm SL) using collection methods transferred from successful field trials in the Canadian Maritimes.</p>

<p>Three independent field trials were conducted in the Jonesport-Beals region from May 2007 to May 2009 that focused on providing information for fishermen and fisheries managers about the efficacy of using closed bottom areas to enhance commercial populations of these bivalves.</p>

<p><a href=\"http://northeastconsortium.org/pdfs/awards_2006/Beal%2006/Beal%2006%20Final%20Report.pdf\" target=\"_blank\">final report</a></p>

<p>presentation: <em>A Collaborative Effort to Examine New Strategies for Managing Closed Bottom Habitats for Sea Scallops </em>(<a href=\"http://www.northeastaquaculture.org/08presentation/08BEAL_Placopecten_magellanicus%20.pdf\" target=\"_blank\">pdf</a>)</p>

<p>Associated data sets:<br />
<a href=\"http://nec.whoi.edu/jg/serv/nec/HabitEco/scallop_wetdry_abund.html0%7Bdir=nec.whoi.edu/jg/dir/nec/HabitEco/,info=nec.whoi.edu:80/jg/info/nec/HabitEco/scal_wetdry_abund%7D\">Abundance of scallops after wet or dry storage methods, 2007 data</a><br />
<a href=\"http://nec.whoi.edu/jg/serv/nec/HabitEco/scallop_wetdry_size.html0%7Bdir=nec.whoi.edu/jg/dir/nec/HabitEco/,info=nec.whoi.edu:80/jg/info/nec/HabitEco/scal_wetdry_size%7D\">Size of scallops after wet or dry storage methods, 2007 data</a></p>

<p><strong>Station Location Code Names</strong></p>

<table align=\"center\" border=\"1\" cellspacing=\"0\" style=\"width:95%\">
<tbody>
<tr>
<td><strong>Sites on West Side of Great Wass Island</strong></td>
<td><strong>Sites on East Side of Great Wass Island</strong></td>
</tr>
<tr>
<td>CI = Crumple Island</td>
<td>BH = Bunker's Hole</td>
</tr>
<tr>
<td>CL = Corn Ledge</td>
<td>BI = Ballast Island</td>
</tr>
<tr>
<td>D1-D12 = \"Deep 1 through Deep 12\"</td>
<td>BL = Breaking Ledge</td>
</tr>
<tr>
<td>D1 = Palmer's Island</td>
<td>BSI = Big Spruce Island</td>
</tr>
<tr>
<td>D5 = Outer Ram Island</td>
<td>D1 = \"Deep Site #1\"</td>
</tr>
<tr>
<td>D9 = Eastern Side Ram Island</td>
<td>D2-D10 = \"Deep Sites #2 through #10\"</td>
</tr>
<tr>
<td>DL = Drowned Ledges</td>
<td>D11 = JL = Jumper Ledge</td>
</tr>
<tr>
<td>HI = Hardwood Island</td>
<td>LH = Lakeman's Harbor</td>
</tr>
<tr>
<td>IS = Inner Sand Island</td>
<td>LP = Loon Point (Jonesport)</td>
</tr>
<tr>
<td>LR = Little Ram Island</td>
<td>MI = Mark Island</td>
</tr>
<tr>
<td>OR = Outer Ram Island</td>
<td>PL = Point of Lakeman's Harbor</td>
</tr>
<tr>
<td>OS = Outer Sand Island</td>
<td>S = Seguin Island</td>
</tr>
<tr>
<td>SD = Sea Duck Island</td>
<td>SI = Sheep Island</td>
</tr>
<tr>
<td>SS = Steven's Island South</td>
<td>SR = Shag Rocks</td>
</tr>
<tr>
<td>ST = Steven's Island North</td>
<td>WC = Wallace Cove (Head Harbor Island)</td>
</tr>
</tbody>
</table>

<p>旨在研究海扇（Sea Scallops）闭底栖息地管理新策略的合作项目</p>

<p>缅因州东部的渔民希望评估封闭区域对野生海扇增殖的效能。2007年春季，在比尔斯-琼斯波特（Beals-Jonesport）区域设立了两片曾为高产扇贝渔场但现已废弃的1 km²海域。为确定采集、处理、运输及投放壳长（Shell Length，SL）5~70 mm的野生海扇的最优方法，我们于2008年4月末或5月初启动了实验底栖试验，并在两片海域内耗时30天完成全部试验。此外，我们采用源自加拿大海洋省份成功野外试验的采集方法，收集了壳长5~10 mm的野生扇贝苗（scallop spat）。</p>

<p>2007年5月至2009年5月期间，在琼斯波特-比尔斯区域共开展了三项独立野外试验，旨在为渔民与渔业管理者提供关于利用封闭底栖栖息地增殖该类双壳类（bivalves）商业种群的效能信息。</p>

<p><a href="http://northeastconsortium.org/pdfs/awards_2006/Beal%2006/Beal%2006%20Final%20Report.pdf" target="_blank">最终报告</a></p>

<p>演示文稿：<em>旨在研究海扇闭底栖息地管理新策略的合作项目</em>(<a href="http://www.northeastaquaculture.org/08presentation/08BEAL_Placopecten_magellanicus%20.pdf" target="_blank">pdf</a>)</p>

<p>关联数据集：<br />
<a href="http://nec.whoi.edu/jg/serv/nec/HabitEco/scallop_wetdry_abund.html0%7Bdir=nec.whoi.edu/jg/dir/nec/HabitEco/,info=nec.whoi.edu:80/jg/info/nec/HabitEco/scal_wetdry_abund%7D">2007年干湿储存方式后的扇贝丰度数据</a><br />
<a href="http://nec.whoi.edu/jg/serv/nec/HabitEco/scallop_wetdry_size.html0%7Bdir=nec.whoi.edu/jg/dir/nec/HabitEco/,info=nec.whoi.edu:80/jg/info/nec/HabitEco/scal_wetdry_size%7D">2007年干湿储存方式后的扇贝规格数据</a></p>

<p><strong>站点位置代码名称</strong></p>

<table align="center" border="1" cellspacing="0" style="width:95%">
<tbody>
<tr>
<td><strong>大沃斯岛西侧站点</strong></td>
<td><strong>大沃斯岛东侧站点</strong></td>
</tr>
<tr>
<td>CI = 克兰普尔岛（Crumple Island）</td>
<td>BH = 邦克洞（Bunker's Hole）</td>
</tr>
<tr>
<td>CL = 科恩暗礁（Corn Ledge）</td>
<td>BI = 压载岛（Ballast Island）</td>
</tr>
<tr>
<td>D1-D12 = "深1号至深12号位点"</td>
<td>BL = 断裂暗礁（Breaking Ledge）</td>
</tr>
<tr>
<td>D1 = 帕尔默岛（Palmer's Island）</td>
<td>BSI = 大云杉岛（Big Spruce Island）</td>
</tr>
<tr>
<td>D5 = 外拉姆岛（Outer Ram Island）</td>
<td>D1 = "深位点1号"</td>
</tr>
<tr>
<td>D9 = 拉姆岛东侧（Eastern Side Ram Island）</td>
<td>D2-D10 = "深2号至深10号位点"</td>
</tr>
<tr>
<td>DL = 沉没暗礁（Drowned Ledges）</td>
<td>D11 = JL = 跳跃暗礁（Jumper Ledge）</td>
</tr>
<tr>
<td>HI = 哈伍德岛（Hardwood Island）</td>
<td>LH = 莱克曼港（Lakeman's Harbor）</td>
</tr>
<tr>
<td>IS = 内沙岛（Inner Sand Island）</td>
<td>LP = （琼斯波特）潜鸟角（Loon Point (Jonesport)）</td>
</tr>
<tr>
<td>LR = 小拉姆岛（Little Ram Island）</td>
<td>MI = 马克岛（Mark Island）</td>
</tr>
<tr>
<td>OR = 外拉姆岛（Outer Ram Island）</td>
<td>PL = 莱克曼港角（Point of Lakeman's Harbor）</td>
</tr>
<tr>
<td>OS = 外沙岛（Outer Sand Island）</td>
<td>S = 塞金岛（Seguin Island）</td>
</tr>
<tr>
<td>SD = 海鸭岛（Sea Duck Island）</td>
<td>SI = 绵羊岛（Sheep Island）</td>
</tr>
<tr>
<td>SS = 南史蒂文斯岛（Steven's Island South）</td>
<td>SR = 粗岩群（Shag Rocks）</td>
</tr>
<tr>
<td>ST = 北史蒂文斯岛（Steven's Island North）</td>
<td>WC = （黑德港岛）华莱士湾（Wallace Cove (Head Harbor Island)）</td>
</tr>
</tbody>
</table>