Antarctic Pack-Ice Seals: A Workshop

南极浮冰海豹：研讨会

• 批准号: 9312289
• 负责人: Donald Siniff
• 金额: $ 1.4万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-05-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9312289&HistoricalAwards=false
• 关键词: Antarctic; Pack; Ice; Seals; Workshop

The Antarctic pack ice seals are represented by four species, Crabeater, Lobodon carcinophagus; Weddell, Leptonychotes weddellii; Leopard, Hydruga leptonyx; and Ross, Omatophoca rossii. These species could be potentially affected by human related environmental impacts that are beginning to occur within the Antarctic ecosystem. The impact that such disturbances as global warming, ozone depletion, and commercial fisheries, could have on the ecology and population dynamics of these species is unknown. Because of their dependence upon the pack ice ecosystem, it has been hypothesized that this group could be particularly vulnerable to slight changes that would be caused by such events. Census data, from very limited surveys, in the early 1980's, have shown that the crabeater seal population may have declined in certain areas of the Antarctic in recent decades. This species is currently being viewed as an indicator of fisheries impact. However, very little is known about the total distribution, abundance and general ecology of this species around the Antarctic continent. Thus, it is difficult to properly interpret local changes that may be observed from investigations. This workshop will produce an integrated study document that will prioritize topics of research on these marine mammals. The workshop will encourage cooperation and sharing of data, logistic resources, and scientific expertise.

南极的浮冰海豹有四种：食蟹海豹、食蟹海豹；weddeli, Leptonychotes weddeli；豹子，长尾龙；还有罗斯，我是番茄。这些物种可能受到南极生态系统内开始出现的与人类有关的环境影响的潜在影响。全球变暖、臭氧消耗和商业渔业等干扰对这些物种的生态和种群动态可能产生的影响尚不清楚。由于它们对浮冰生态系统的依赖，据推测，这一群体可能特别容易受到此类事件引起的轻微变化的影响。在20世纪80年代早期，从非常有限的调查中得出的普查数据显示，近几十年来，在南极的某些地区，食蟹海豹的数量可能有所下降。该物种目前被视为渔业影响的一个指标。然而，人们对这种物种在南极大陆的总体分布、丰度和总体生态知之甚少。因此，很难正确解释从调查中观察到的局部变化。本次研讨会将产生一份综合研究文件，该文件将优先考虑这些海洋哺乳动物的研究主题。讲习班将鼓励数据、后勤资源和科学专门知识的合作和共享。