当前位置: X-MOL 学术N. Am. J. Fish. Manag. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Migration and Residency of Sandbar, Atlantic Sharpnose, Bull, and Nurse Sharks in the Northern Gulf of Mexico
North American Journal of Fisheries Management ( IF 1.1 ) Pub Date : 2020-08-09 , DOI: 10.1002/nafm.10501
Ashley N. Altobelli 1 , Stephen T. Szedlmayer 1
Affiliation  

Acoustic telemetry was used to monitor the movements and residency of Sandbar Sharks Carcharhinus plumbeus, Atlantic Sharpnose Sharks Rhizoprionodon terraenovae, Bull Sharks Carcharhinus leucas, and Nurse Sharks Ginglymostoma cirratum around artificial reefs in the northern Gulf of Mexico. Transmitter‐tagged sharks were monitored from November 2012 to July 2019. Residency comparisons were based on the percentage of days that an individual was present in the study area for each month. Sandbar Sharks had greater residencies in fall than spring and winter, Bull Sharks had greater residencies in summer, and Nurse Sharks had greater residencies in the fall. No seasonal patterns were detected for Atlantic Sharpnose Sharks, but one individual returned to the study area in all 5 years that the transmitter was active. One Sandbar Shark and one Nurse Shark had long‐term preferences (>3 years) for specific sites. Long‐distance migrations (n = 7) away from the artificial reef area in the northern Gulf of Mexico were observed for three Sandbar Sharks (588, 589, and 1,894 km), two Bull Sharks (927 and 968 km), and two Nurse Sharks (903 and 943 km), with six of these migrating sharks returning to their tagging areas. Specifically, two Bull Sharks and two Nurse Sharks made winter migrations to the southern end of Florida (Florida Keys), and two Sandbar Sharks migrated to the middle of the west coast of Florida. A third Sandbar Shark made the longest distance migration and moved out of the Gulf of Mexico, into the Atlantic Ocean, and up to the South Carolina coast. Importantly, this Sandbar Shark returned to the same artificial reef where it was tagged and released in the northern Gulf of Mexico after its 3,788‐km round trip migration. These long‐distance migrations and subsequent homing behaviors, coupled with local residencies, indicate that the artificial reefs in the northern Gulf of Mexico may have significance extending well beyond the localized areas of reef deployment.

中文翻译:

墨西哥北部海湾沙洲鲨,大西洋锐齿鲨,公牛鲨和护士鲨的迁徙和居住权

声学遥测技术用于监测沙洲鲨Carcharhinus plumbeus,大西洋尖鼻鲨Rhizoprionodon terraenovae,牛鲨Carcharhinus leucas和护士鲨Ginglymostoma cirratum的运动和驻留情况。在墨西哥湾北部的人工鱼礁周围。从2012年11月到2019年7月,对带有发射器标签的鲨鱼进行了监测。居住时间的比较是基于每个月每个人在研究区域的停留天数百分比。与秋季和春季和冬季相比,沙丘鲨在秋季的居留量更大,夏季沙丘鲨的居留量更大,秋季,护士鲨的居留量更大。没有发现大西洋尖嘴鲨的季节性模式,但是在发射机正常工作的全部5年中,有一个人返回了研究区域。一只沙洲鲨鱼和一只护士鲨对特定地点有长期偏爱(> 3年)。长途迁移(n = 7)在远离墨西哥湾北部人工礁区的地方观察到3条沙洲鲨(588、589和1894公里),2条牛鲨(927和968公里)和2条护士鲨(903和943公里) ),其中有六只正在迁移的鲨鱼返回了标签区域。具体来说,有两个公牛鲨和两个护士鲨冬季迁徙到佛罗里达州的南端(佛罗里达群岛),有两个沙洲鲨移居到佛罗里达州西海岸的中部。第三个沙洲鲨(Sandbar Shark)进行了最长的迁徙,并从墨西哥湾迁出,进入大西洋,直至南卡罗来纳州海岸。重要的是,在经过3788公里的往返迁移之后,这种沙洲鲨返回了原来的人工礁,并在墨西哥湾北部被贴上标签并释放了出来。
更新日期:2020-10-16
down
wechat
bug