SGER: Blow-sampling: A non-invasive method for assessing diet, reproductive status and genetics in cetaceans

SGER：吹气取样：一种评估鲸类饮食、繁殖状态和遗传学的非侵入性方法

• 批准号: 0847922
• 负责人: Janet Mann
• 金额: $ 8.99万
• 依托单位: Georgetown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-06-01 至 2010-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0847922&HistoricalAwards=false
• 关键词: SGER; Blow; sampling; non; invasive

Detailed knowledge concerning the diet, kinship, health, and hormonal status of top marine predators is critical to understanding basic cetacean biology, ecology, life history, and evolution, and can contribute substantially to management and conservation efforts. However, such information is extremely difficult to obtain without stressing, harming, and/or capturing animals. This study develops a new, non-invasive method (blow-sampling) that involves collecting fluid exhaled from the blowhole and will explore the full potential of this biological sample. The individual life histories, reproduction, behavior, genetics, and ecology of more than 1200 Indian Ocean bottlenose dolphins in Shark Bay, Australia have been monitored since 1984. In addition, five adults and their offspring visit a beach (Monkey Mia) daily to receive fish from humans. Blow samples collected daily from these individuals will be used to develop assays of reproductive states, relatedness and diets, which can then be applied to evaluate these variables in the larger population. In a 2008 pilot study 90 blow samples from provisioned and non-provisioned dolphins were collected and mtDNA (maternally inherited) was extracted from their blow. These samples will be used to identify reproductive state through hormones, diet through fatty acids, health through disease presence, and kinship through mtDNA and nuclear DNA, which can then be correlated with age, sex, behavior, reproductive patterns and survival. This innovative and non-invasive project will acquire much-needed data for improving dolphin welfare, and can potentially set a new standard for biological sampling of cetaceans.

详细了解顶级海洋捕食者的饮食，亲属关系，健康和激素状况对于了解基本的鲸目动物生物学，生态学，生活史和进化至关重要，并可大大有助于管理和保护工作。然而，在不对动物施加压力、伤害和/或捕获动物的情况下，获得这样的信息是极其困难的。这项研究开发了一种新的，非侵入性的方法（吹采样），包括收集从气孔呼出的液体，并将探索这种生物样品的全部潜力。 自1984年以来，对1200多只生活在澳大利亚筲箕湾的印度洋短吻海豚的个体生活史、繁殖、行为、遗传学和生态学进行了监测。此外，五只成年猴和它们的后代每天都会去海滩（猴子米娅）接受人类的鱼。每天从这些人身上收集的吹气样本将用于开发生殖状态、相关性和饮食的测定，然后可以用于在更大的人群中评估这些变量。在2008年的一项试点研究中，从供应和非供应的海豚中收集了90个打击样本，并从他们的打击中提取了mtDNA（母系遗传）。 这些样本将用于通过激素确定生殖状态，通过脂肪酸确定饮食，通过疾病存在确定健康，通过mtDNA和核DNA确定亲属关系，然后将其与年龄，性别，行为，生殖模式和生存相关联。这一创新和非侵入性项目将获得改善海豚福利所急需的数据，并可能为鲸目动物生物采样设定新标准。