The diamondback terrapin Malaclemys terrapin is frequently caught as bycatch in both commercial and recreational blue crab Callinectes sapidus fisheries throughout its range along the Atlantic and Gulf coasts of North America. Bycatch reduction devices (BRDs) are plastic or wire rectangles mounted in the entrance funnels of crab traps, designed to exclude terrapins while still allowing crabs to enter. In this study conducted in two tidal creeks in Virginia, USA, we assessed the effectiveness of four BRD designs, including two novel oval designs, against control traps with no BRDs.

中文翻译：

---

兼捕减少装置排除了小菜斑龟，并维持了弗吉尼亚州两条潮汐溪中蓝蟹的捕获量

小菜龟（Malaclemys terrapin）在北美大西洋和墨西哥湾沿岸的商业和休闲蓝蟹Callinectes sapidus渔业中经常作为兼捕物被捕获。兼捕减少装置 (BRD) 是安装在螃蟹陷阱入口漏斗中的塑料或金属丝矩形，旨在排除水龟，同时仍允许螃蟹进入。在美国弗吉尼亚州的两条潮汐溪中进行的这项研究中，我们评估了四种 BRD 设计（包括两种新颖的椭圆形设计）相对于没有 BRD 的控制陷阱的有效性。