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

Ashley 9908621这个美国-巴西的论文增强研究提案是由Kevin A.在玛丽·V·阿什利博士的赞助下，芝加哥伊利诺斯大学的费尔德海姆。 Feldheim先生将与巴西Paraiba联邦大学的Ricardo Rosa博士领导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。本论文的研究是一个更大的，正在进行的项目的一部分，部分由美国资助-巴西项目，由美国研究员，迈阿密大学的塞缪尔·格鲁伯博士领导。 这项工作的目标是调查生活史和交配系统的柠檬鲨发现在Atol des Rocas和费尔南多德Narohna关闭巴西海岸。研究人员将使用两种高分辨率分子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成年和青少年柠檬鲨的大样本的亲子关系和亲缘关系。 他们将把他们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，以回答有关这个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.***