MRI: Acqusition of Electrofishing and Multi-parameter Water Sampling Instrumentation

威斯康辛州De Pere圣诺伯特学院（SNC）的James R. Hodgson博士获得了一笔赠款，用于资助：1)一艘17英尺长的电渔船，该电渔船配备了能够在硬水和软水系统中进行电鱼的冲击箱，2)一个背包式冲击器，3)三台多参数监测系统YSI 6600探空仪，以及4)一台笔记本电脑。这种设备被认为具有共同的研究重点。此外，电渔具和连续监测湖沼仪器将大大增加我们作为本科教学机构的多功能性。船和背包震动器将使我们能够从我们的实验湖中收集不同种类和大小的鱼。监测鱼类的招募、生长速度和饮食（包括通过食物网追踪13C同位素）对当前研究设计的总体目标至关重要。获取鱼类饮食数据是我们解决系统内初级生产与陆地有机物质在促进湖泊生态系统食物网中的重要性相关问题的生态系统方法的核心。要回答这个问题，顶级食肉动物（如大口黑鲈）在多大程度上依赖湖泊初级生产者或陆地和湿地植物作为碳源，取决于可靠的鱼类收集手段。多参数水监测系统将使我们能够在所有研究湖泊的精细尺度上测量一套湖泊特性。YSI多参数监测器将允许在项目期间同时在所有实验湖泊中使用连续日摄氧量测量来测量整个系统的总初级生产和呼吸。此外，该仪器将为SNC进一步发展其能力提供持续的机会，使其能够利用福克斯河和绿湾湾作为方便的本科生水生实验室（如生态学，湖沼学和环境化学）和独立的学生研究和高级论文。水生研究是生物和环境科学学院的重点之一，随着福克斯河水质的改善，适合大型河流栖息地的采样装置变得越来越重要。

A grant has been awarded to Dr. James R. Hodgson, St. Norbert College (SNC), De Pere Wisconsin that funds: 1) a 17-foot electrofishing boat equipped with shocker box capacities to electrofish in both hardwater and softwater systems, 2) a backpack shocker, 3) three Multi-Parameter Monitoring systems YSI 6600 Sondes, and 4) a lap top computer). This equipment is considered to share a common research focus. Additionally, the electrofishing gear and continuous monitoring limnological instrumentation will greatly increase our versatility as an undergraduate teaching institution.The boat and backpack shocker will allow us to collect fish of different species and sizes from our experimental lakes. Monitoring fish recruitment, growth rate and diet (including tracing 13C isotope though the food web) is essential to the overall goals of the current research design. Obtaining fish diet data is central to our ecosystem approach to resolving questions relative to the importance of within-system primary production versus terrestrial organic matter in fueling lake ecosystem food webs. To answer the question to what degree do top carnivores (e.g. largemouth bass) depend on lake primary producers or on terrestrial and wetland plants as a carbon source depends on reliable means of fish collection. The multi-parameter water monitoring systems will allow us to meter a suite of limnological properties at a fine scale of all our study lakes. The YSI multi-parameter monitors will allow for measurement of whole-system gross primary production and respiration using continuous diel (daily) O2 measurements over the duration of the project in all experimental lakes simultaneously.Additionally, this instrumentation will provide continued opportunities for SNC to further develop its capacity to use the Fox River and the bay of Green Bay as a convenient undergraduate aquatics laboratory (e.g. ecology, limnology and environmental chemistry) and independent student research and senior theses. Aquatic research is one of the emphases of the faculty in biology and environmental science and with the improvement of water quality of the Fox River, sampling gear appropriate for large riverine habitats becomes an ever increasingly high priority.