Zooplankton Capture by Corals: Effects of Water Movement and Prey Escape

珊瑚捕获浮游动物：水运动和猎物逃逸的影响

基本信息

批准号：
9302066
负责人：
Kenneth Sebens
金额：
$ 37.5万
依托单位：
University of Maryland Center for Environmental Sciences
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1993
资助国家：
美国
起止时间：
1993-07-01 至 1997-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9302066&HistoricalAwards=false
关键词：
Zooplankton Capture Corals Effects Water

项目摘要

Information on water flow in coral reef environments has generally been done to quantify mass transport across reefs or to identify important processes generating nutrient flux from reefs. This project will investigate the effects of water flow on several aspects of the feeding biology of corals. Field measurements of feeding rates on four species of corals will be made with prey sampling by an automated pump/sampler and field flume that allows concurrent measurements of water flow and prey availability. Feeding experiments will be manipulated by varying flow rate, prey type, and food availability and will be conducted over several days with different flow conditions. Capture events and prey type, and food availability and will be conducted over several days with different flow conditions. Capture events and prey escape behavior will be filmed using underwater video. Another important aspect of feeding biology in coral reefs is the small scale water flow around corals in the field. This will be accomplished with three self- contained underwater thermistors flowmeters with 2 mm spatial resolution, based on the design of LaBarber and Vogel (1976). The data collected will be used to characterize the general flow regime at the site, providing new information about the flow environment of coral reefs in Jamaica and other sites in the Caribbean.

通常已经完成了有关珊瑚礁环境中水流的信息，以量化跨礁石跨礁石的质量运输或确定从礁石产生营养通量的重要过程。该项目将研究水流对珊瑚进食生物学几个方面的影响。通过自动泵/采样器和场水槽对四种珊瑚的喂养速率进行现场测量，可以同时测量水流和猎物的可用性。喂养实验将通过不同的流速，猎物类型和食物可用性来操纵，并将在几天内在不同的流动条件下进行。捕获事件和猎物类型以及食物的可用性，并将在几天内以不同的流量条件进行。捕获事件和猎物逃生行为将使用水下视频拍摄。珊瑚礁中进食生物学的另一个重要方面是该田间珊瑚周围的小规模水流。根据Labarber and Vogel（1976）的设计，将使用三个具有2 mM空间分辨率的自我含有水下热敏电仪流量计来实现。收集的数据将用于表征该地点的一般流动状态，从而提供有关牙买加珊瑚礁和加勒比海其他地点的珊瑚礁流动环境的新信息。