| 虾池小型底栖动物的数量研究 |
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| 引用本文： | 于子山,张志南.虾池小型底栖动物的数量研究[J].中国海洋大学学报(自然科学版),1994(4). |
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| 作者姓名： | 于子山 张志南 |
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| 基金项目： | 国家自然科学基金,国家教委师资办对留学生择优项目 |
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| 摘 要： | 提出１９８７年５月至１０月在黄岛养虾池对虾生长周期内对小型底栖动物数量逐月调查。指出：小型底栖动物总平均密度为１０９２．４ｉｎｄｓ·１０ｃｍ－２，自由生活海洋线虫和底栖桡足类是主要类群，其总平均密度分别为４６６．９和４５７．９ｉｎｄｓ·１０ｃｍ－２。８９．７％的小型底栖动物分布在沉积物表层２ｃｍ内。结果指明小型底栖动物被对虾捕食，并提出了捕食模式。
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| 关 键 词： | 虾池 小型底栖动物 自由生活海洋线虫 底栖桡足类 捕食模式 |
A STUDY ON THE ABUNDANCE OF MEIOFAUNA IN SHRIMP CULTURE POND |
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| Yu Zishan, Zhang Zhinan.A STUDY ON THE ABUNDANCE OF MEIOFAUNA IN SHRIMP CULTURE POND[J].Periodical of Ocean University of China,1994(4). |
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| Authors: | Yu Zishan Zhang Zhinan |
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| Institution: | College of Marine Life Sciences |
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| Abstract: | An investigation into the ecology of meiofauna in Huangdao shrimp mariculture pond was made in May to October, 1987. The mean density of meiofauna is 1092. 4 inds. 10cm-2. 89. 7% of the total meiofauna is concentrated in 0-2cm layer of the sediment. Free-living marine nematodes and harpacticoids are the dominant groups and their densities are 466. 9 inds. 10cm-2 and 457. 9 inds. 10cm-2. They constitut more than 75% of the total meiofauna(43%, May). According to the difference of density of meiofauna inside and outside the cage, the predation model of shrimp on meiofauna is given: polychaetes and harpacticoids are the main food items for juvenile shrimps and nematodes is the item after polychaetes and harpacticoids. |
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| Keywords: | Shrimp pond meiofauna free-living marine nematodes harpacticoids predation |
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