期刊论文详细信息
Marine Ecology Progress Series
Vertical and horizontal movement patterns of scyphozoan jellyfish in a fjord-like estuary
Chris J. Harvey1  Mitsuhiro Kawase1  Kelly S. Andrews1  Pamela E. Moriarty1 
关键词: Acoustic telemetry;    Cyanea capillata;    Phacellophora camtschatica;    Diel vertical migration;    Hypoxia;   
DOI  :  10.3354/meps09783
学科分类:海洋学与技术
来源: Inter-Research
PDF
【 摘 要 】

ABSTRACT: Despite their important functional role in marine ecosystems, we lack much information about jellyfish, including basic research on their swimming behavior. Here we used acoustic telemetry to obtain detailed behavioral data on 2 scyphozoans, lion’s mane jellyfish Cyanea capillata and fried-egg jellyfish Phacellophora camtschatica, in Hood Canal, Puget Sound, Washington, USA. Individual variation was high in both the short-term (hours) and long-term (days) data, although several patterns of behavior emerged. Lion’s mane jellyfish performed diel vertical migrations over the longer time period, but their depth did not vary with tidal stage. Additionally, horizontal swimming speeds varied with diel period and tidal stage for both lion’s mane and fried-egg jellyfish. Lion’s mane jellyfish swam faster during the night than day, whereas fried-egg jellyfish swam faster during the day. Both species had the highest swimming rates during flood tides. Jellyfish clearly exhibited active swimming behaviors and were not passively planktonic. Net and cumulative distances traveled suggest that Hood Canal may be a sink for jellyfish, potentially exacerbating effects of population blooms on the ecosystem. Our findings provide mixed support for previous studies reporting diel vertical migrations in other jellyfish species, and provide evidence that jellyfish are capable of more advanced swimming behaviors than often thought.

【 授权许可】

Unknown   

【 预 览 】
附件列表
Files Size Format View
RO201912010134906ZK.pdf 714KB PDF download
  文献评价指标  
  下载次数:12次 浏览次数:11次