Testing whether the Availability of Chinook Salmon is Insufficient to Support a Healthy Southern Resident Killer Whale Population
测试奇努克鲑鱼的供应量是否不足以支持健康的南方虎鲸种群
基本信息
- 批准号:531097-2018
- 负责人:
- 金额:$ 3.64万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Whale Science for Tomorrow
- 财政年份:2020
- 资助国家:加拿大
- 起止时间:2020-01-01 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The poor body condition of southern resident killer whales in recent years points to them not being able to
obtain enough of their preferred prey (Chinook salmon) to meet their daily needs. It is unknown whether this is
due to reduced abundance and quality of salmon from overfishing or environmental change, or reduced salmon
accessibility by killer whales due to vessel traffic and acoustic disturbance. Our objectives are to 1) test the
hypothesis that the availability of Chinook salmon is insufficient to support a healthy population of southern
resident killer whales; 2) increase knowledge about the at-sea distribution of this important prey species, and
the factors that influence it; 3) determine the time that adult Chinook are available to killer whales and
fisheries; and 4) determine the conditions required for killer whales to successfully forage. We will achieve our
objectives by a) constructing comparative bioenergetics models to predict daily food requirements of increasing
and decreasing pods of southern and northern killer whales, and incorporating environmental variability,
fishing pressure, and vessel disturbance to assess impact on nutritional status. We will also track the fine-scale
movements of individual killer whales in conjunction with tracking and monitoring the movements of tagged
fish using a network of receivers moored in the inside waters of Vancouver Island. The research we are
proposing is novel and timely, and complements ongoing research we are doing in partnership with DFO to
resolve whether availability of Chinook is sufficient to support southern resident killer whales in British
Columbia. Our research will have direct implications for the management of fisheries, the conservation of
killer whales, and economies of many of our coastal communities in southern British Columbia. It broadens the
base of recovery research in Canada, accelerates the development of marine mammal scientists, and ultimately
increases the scientific information available to support government decision-making and conservation efforts
for a priority whale species.
近年来,南方居民虎鲸的身体状况不佳,表明它们无法
获取足够的它们喜欢的猎物(奇努克三文鱼)来满足它们的日常需要。目前还不清楚这是不是
由于过度捕捞或环境变化导致鲑鱼丰度和质量下降,或鲑鱼减少
由于船只交通和声学干扰,虎鲸可以到达。我们的目标是1)测试
假设奇努克鲑鱼的可获得性不足以支持南部健康的种群
栖息的虎鲸;2)增加关于这种重要猎物物种在海上分布的知识;以及
影响它的因素;3)决定了虎鲸可以获得成年奇努克的时间和
以及4)确定虎鲸成功觅食所需的条件。我们将实现我们的目标
目标通过a)构建比较生物能量学模型来预测日益增长的日常食物需求
和南方和北方虎鲸不断减少的豆荚,并结合环境的变异性,
捕捞压力和船只扰动,以评估对营养状况的影响。我们还将跟踪精细刻度
个别虎鲸的活动与跟踪和监测标记的活动相结合
使用停泊在温哥华岛内水域的接收器网络的鱼。我们正在进行的研究
建议是新颖和及时的,并补充了我们正在与DFO合作进行的研究,以
确定奇努克的可用性是否足以支持英国南部居民的虎鲸
哥伦比亚。我们的研究将直接影响渔业的管理,养护
虎鲸,以及我们不列颠哥伦比亚省南部许多沿海社区的经济。它拓宽了
加拿大的恢复研究基地,加速了海洋哺乳动物科学家的发展,并最终
增加可用于支持政府决策和保护工作的科学信息
对于一个优先的鲸鱼物种。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Trites, Andrew其他文献
Trites, Andrew的其他文献
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{{ truncateString('Trites, Andrew', 18)}}的其他基金
Evolutionary dependencies of marine mammals on their preferred prey species: a potential paradigm shift to guide fisheries management and conservation initiatives
海洋哺乳动物对其首选猎物物种的进化依赖性:指导渔业管理和保护举措的潜在范式转变
- 批准号:
RGPIN-2017-04907 - 财政年份:2021
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Evolutionary dependencies of marine mammals on their preferred prey species: a potential paradigm shift to guide fisheries management and conservation initiatives
海洋哺乳动物对其首选猎物物种的进化依赖性:指导渔业管理和保护举措的潜在范式转变
- 批准号:
RGPIN-2017-04907 - 财政年份:2020
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Evolutionary dependencies of marine mammals on their preferred prey species: a potential paradigm shift to guide fisheries management and conservation initiatives
海洋哺乳动物对其首选猎物物种的进化依赖性:指导渔业管理和保护举措的潜在范式转变
- 批准号:
RGPIN-2017-04907 - 财政年份:2019
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Testing whether the Availability of Chinook Salmon is Insufficient to Support a Healthy Southern Resident Killer Whale Population
测试奇努克鲑鱼的供应量是否不足以支持健康的南方虎鲸种群
- 批准号:
531097-2018 - 财政年份:2019
- 资助金额:
$ 3.64万 - 项目类别:
Whale Science for Tomorrow
Evolutionary dependencies of marine mammals on their preferred prey species: a potential paradigm shift to guide fisheries management and conservation initiatives
海洋哺乳动物对其首选猎物物种的进化依赖性:指导渔业管理和保护举措的潜在范式转变
- 批准号:
RGPIN-2017-04907 - 财政年份:2018
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Evolutionary dependencies of marine mammals on their preferred prey species: a potential paradigm shift to guide fisheries management and conservation initiatives
海洋哺乳动物对其首选猎物物种的进化依赖性:指导渔业管理和保护举措的潜在范式转变
- 批准号:
RGPIN-2017-04907 - 财政年份:2017
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Effects of Climate Change on the Seasonal Diets, Energy Requirements, Abundances and Distributions of Marine Mammals in the North Pacific Ocean
气候变化对北太平洋海洋哺乳动物季节性饮食、能量需求、丰度和分布的影响
- 批准号:
RGPIN-2015-06704 - 财政年份:2015
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Effects of climate change on the distribution and energy requirements of marine mammals
气候变化对海洋哺乳动物分布和能量需求的影响
- 批准号:
154254-2009 - 财政年份:2014
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Effects of climate change on the distribution and energy requirements of marine mammals
气候变化对海洋哺乳动物分布和能量需求的影响
- 批准号:
154254-2009 - 财政年份:2012
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
Effects of climate change on the distribution and energy requirements of marine mammals
气候变化对海洋哺乳动物分布和能量需求的影响
- 批准号:
154254-2009 - 财政年份:2011
- 资助金额:
$ 3.64万 - 项目类别:
Discovery Grants Program - Individual
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