U.S.-Brazil Dissertation Enhancement: Population Genetic Analysis of the Lemon Shark, Negaprion Brevirostris, at Atol des Rocas and Fernando de Naronha, Brazil

阿什利9908621本美国-巴西学位论文增强研究提案是由芝加哥伊利诺伊大学的凯文·A·费尔德海姆先生提交的，由玛丽·V·阿什利博士赞助。费尔德海姆将与巴西联邦大学的里卡多·罗萨博士为首的一组巴西合作者合作。他们的研究涉及巴西Atol des Rocas和Fernando de Naronha的柠檬鲨鱼Negaprion brevirostris的种群遗传分析。ATOL des Rocas是一个生物保护区；Fernando de Naronha是巴西国家海洋公园。这篇论文的研究是一个更大的、正在进行的项目的一部分，该项目部分由美国研究员迈阿密大学的Samuel Gruber博士领导的美国-巴西项目资助。这项工作的目的是调查在巴西海岸外的Atol des Rocas和Fernando de Narohna发现的柠檬鲨的生活史和交配系统。研究人员将使用两个高分辨率分子DNA标记(微卫星和线粒体DNA)来表征他们将在这两个地点收集的大量成年和幼年柠檬鲨的亲缘关系和亲缘关系。他们将把自己的数据与从巴哈马比米尼附近的另一个种群收集的数据进行比较，以回答有关这种物种交配系统和基本繁殖生物学的问题。增加对该物种的了解将有助于其保护。*

Ashley9908621This US-Brazil dissertation enhancement research proposal was submitted by Mr. Kevin A. Feldheim of the University of Illinois, Chicago, under the sponsorship of Dr. Mary V. Ashley. Mr. Feldheim will work with a group of Brazilian collaborators, led by Dr. Ricardo Rosa of Universidade Federal da Paraiba, Brazil. Their research involves the population genetic analysis of the Lemon shark, Negaprion brevirostris, at Atol des Rocas and Fernando de Naronha, Brazil. Atol des Rocas is a biological reserve; Fernando de Naronha is a Brazilian National Marine Park.This dissertation research is part of a larger, on-going project funded in part by the U.S.-Brazil Program, led by the U.S. researcher, Dr. Samuel Gruber of the University of Miami. The goal of this work is to investigate the life history and mating system of the lemon shark found at Atol des Rocas and Fernando de Narohna off the coast of Brazil. The researchers will use two high resolution molecular DNA markers (microsatellites and mitochondrial DNA) to characterize parentage and relatedness of a large sample of adult and juvenile lemon sharks that they will collect at the two sites. They will compare their data with that collected from another population off Bimini, Bahamas, to answer questions about this species mating system and basic breeding biology. Increased knowledge of this species will aid in its conservation.***