SGER: Effects On and Recovery of Mississipppi Fish Digenean Populations Resulting from Hurricane Katrina

SGER：卡特里娜飓风对密西西比双系鱼类种群的影响和恢复

• 批准号: 0608603
• 负责人: Robin Overstreet
• 金额: $ 12万
• 依托单位: University of Southern Mississippi
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0608603&HistoricalAwards=false
• 关键词: SGER; Effects; Recovery; Mississipppi; Fish

0608603Overstreet Hurricane Katrina caused devastation not just on land in the northern Gulf of Mexico region but also on sea and at the land-sea margin. Coastal barrier islands were inundated and many were re-shaped in size, lagoons and marshes were flooded, and populations of fishes, shellfish and other marine and coastal organisms presumably were destroyed or affected in various other ways. Dr Overstreet at the Gulf Coast Research Laboratory has been studying the species composition and abundances of coastal fishes and mollusks for many years, and will be working with colleagues and students over the next two years to assess hurricane-related impacts on fish and mollusk diversity in the northern Gulf coastal region and recovery, if any, in these populations. A specific target of inquiry will be the composition and spread of blood-borne parasites (digenean flukes and flatworms) infecting fishes, in particular those which use mollusks as secondary or intermediate hosts during their life-cycle growth and maturation. Presence in juvenile fishes of particular parasites would indicate the continuing presence of the mollusks that serve as intermediate hosts. Surveys for fishes and mollusks, with associated museum-preservation and vouchering of specimens and life-history studies of the parasites in laboratory cultures, will commence this first year, following the Fall 2005 hurricanes, and follow-up surveys in year 2 will permit assessments of population recovery or decline. Students currently associated with Dr Overstreets laboratory will participate in the research, along with undergraduate students recruited from minority-serving Mississippi colleges and high school students recruited from the Mississippi School for Mathematics and Science.

0608603奥斯特里特飓风卡特里娜不仅对墨西哥湾北部地区的陆地造成破坏，而且还对海洋和陆海边缘造成破坏。沿海障壁岛屿被淹没，许多岛屿的大小被重新塑造，泻湖和沼泽被淹没，鱼类、贝类和其他海洋和沿海生物种群可能遭到破坏或以各种其他方式受到影响。墨西哥湾沿岸研究实验室的奥弗斯特里特博士多年来一直在研究沿海鱼类和软体动物的物种组成和丰度，并将在未来两年内与同事和学生合作，评估飓风对墨西哥湾北部沿海地区鱼类和软体动物多样性的影响以及这些种群的恢复（如果有）。调查的具体目标将是感染鱼类的血源性寄生虫（双殖吸虫和扁形虫）的组成和传播，特别是那些在生命周期生长和成熟期间以软体动物作为次要或中间宿主的鱼类。幼鱼中特定寄生虫的存在表明作为中间宿主的软体动物的持续存在。鱼类和软体动物的调查，以及相关的博物馆保存和标本凭证以及实验室培养中寄生虫的生活史研究，将于 2005 年秋季飓风之后的第一年开始，第二年的后续调查将允许评估种群恢复或下降。目前与奥弗斯特里茨博士实验室有联系的学生将参与这项研究，还有从密西西比州少数民族服务学院招募的本科生和从密西西比数学与科学学院招募的高中生。