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DIVING BEHAVIOR OF PORPOISES USING MICRO DATA LOGGER

使用微型数据记录仪观察江豚的潜水行为

基本信息

批准号：
08660227
负责人：
KAWAMURA Akito
金额：
$ 1.47万
依托单位：
FACULTY OF BIORESOURCES,MIE UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08660227/
关键词：
HARBOUR PORPOISES MICRO DATA LOGGERS HOKKAIDO RESPIRA-TION METABOLISM AEROBIC DIVE LIMIT DIVE SPEED DIVE SHAPE DIVING BEHAVIOR ARGOS SYSTEM 潜水行動遊泳行動北海道ア-カイバルタグ位置情報

项目摘要

IN ORDER TO MONITOR THE DIVING BEHAVIOR OF FREE-RANGING CETACEANS.MICRO DATA LOGGERS, WITH RELEASE MECHANISMS, WERE ATTACHED TO THE DOR-SAL FINS OF HARBOR PORPOISES, PHOCOENA PHOCOENA, IN FUNKA BAY, HOKKAI-DO DURING 1993-1997. A TOTAL OF ELEVEN HARBOR PORPOISES WERE TAGGEDWITH MICRO DATA LOGGER WHICH RECORDS TIME-DEPTH INFORMATION, BUT SWIM-KING SPEED WAS ADDED IN LATER YEARS.TWO SUCCESSFULLY RECOVERED LOG-GERS IN 1994, REVEALED 141 HOURS DIVE DATA WHICH INCLUDE DEPTH ANDWATER TEMPERATURE IN 4,871 DIVES.PORPOISES DIVED ALMOST CONTIONUOUSLYRARELY EXHIBITING LONG-TERM REST AT THE SURFACE.MAXIMUM DIVE DEPTHSWERE 98.6 METERS WITH MORE THAN 70% OF DIVING TIME AT 20 METERS ORLESS.MOST SHALLOW DIVES WERE V-SHAPED WITH NO BOTTOM TIME.THE DESCE-NT RATE WAS NOT CONSTANT RELATED TO A FINAL DIVE DEPTHRANGE.ANALYSISSUGGESTED THAT THE PORPOISES HAVE ANTICIPATED THE DEPTH TO WHICH THEYWILL DIVE BEFORE INITIATING THE DIVE ITSELF.MATABOLISM OF OXYGEN SUG-GESTED THE PORPOISES USUALLY DIVE UNDER THE AEROBIC DIVE LIMITS.

为了监测自由放养鲸类的潜水行为。1993-1997年，在北海道丰卡湾，将微型数据记录仪与释放装置连接在港鼠海豚（phocoena phocoena）的背鳍上。总共有11只港鼠被贴上了微型数据记录器，记录了时间-深度信息，但在后来的几年里增加了游泳王的速度。1994年，两台成功回收的记录器显示了141小时的潜水数据，包括4871次潜水的深度和水温。鼠海豚几乎是连续潜水，很少在水面上长时间休息。最大潜水深度为98.6米，超过70%的潜水时间在20米及以下。大多数浅水潜水都是v型的，没有底部时间。下降速率与最终潜水深度的关系不是恒定的。分析表明，江豚在开始潜水之前就已经预料到了它们将要潜水的深度。氧代谢表明江豚通常在有氧潜水极限下潜水。