The Ecology of Temperate Herbivorous Fishes

温带草食性鱼类的生态学

• 批准号: 8900131
• 负责人: Mark Hay
• 金额: $ 24.93万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-15 至 1992-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8900131&HistoricalAwards=false
• 关键词: Ecology; Temperate; Herbivorous; Fishes

It has been found, contrary to prevailing thought, that herbivorous fishes, particularly two species--Diplodus holbrooki and Lagodon rhomboides--are among the most common fishes of coastal and continental shelf habitats throughout the southeastern United States, and their feeding habits can dramatically affect the structure of hard-substrate benthic communities. These fish are also major prey species for commercially important species such as snapper and grouper, and may be a significant pathway of energy transfer from shallow nearshore waters to deeper offshore reefs. Experimental field studies will be conducted to assess 1) the interactions between different herbivorous fishes, the interactions between fishes and other herbivores, and the effects of these interactions on benthic community structure; and 2) the mechanisms that cause dramatic increases in the abundance of unpalatable brown seaweeds in the presence of herbivorous fishes. These data will then be compared with studies already completed on herbivorous fish in tropical communities.

人们发现，与普遍的想法相反， 食草性鱼类，特别是两种--重齿鱼 霍尔布鲁克和菱斑兔牙是最常见的 沿海和大陆架生境的鱼类 美国东南部，他们的饮食习惯， 显著影响硬底质底栖生物的结构 社区. 这些鱼也是主要的猎物物种， 商业上重要的物种，如笛鲷和石斑鱼， 可能是浅层能量转移的重要途径 近岸沃茨到更深的近海珊瑚礁。 试验田 将进行研究以评估1） 不同的草食性鱼类，鱼类之间的相互作用 和其他食草动物，以及这些相互作用对 底栖生物群落结构; 2）导致 令人不快的棕色食物的数量急剧增加 海藻在草食性鱼类的存在。这些数据将 然后与已经完成的关于食草动物的研究进行比较， 热带社区的鱼类。