摘要
实验于１９９５年７月１０日至９月１６日，在烟台市黄海水产集团公司第二养虾场进行。采用围隔生态系实验法，利用４个海水池塘陆基围隔（５ｍ×５ｍ）初步研究了台湾红罗非鱼（Ｏｒｅ－ｏｃｈｒｏｍｉｓｍｏｓｓａｍｂｉｃｕｓ×Ｏ．ｎｉｌｏｔｉｃｕｓ）与菲律宾蛤仔（Ｒｕｄｉｔａｐｅｓｐｈｉｌｉｐｐｉｎａｒｕｍ）施肥混养的效果。结果表明：菲律宾蛤仔的生产力为１．２４ｇ／ｍ２·ｄ，负荷力为３８３０．０ｋｇ／ｈｍ２；罗非鱼的生产力为１．８６ｇ·（ｍ２·ｄ）－１，负荷力为１５８０．８ｋｇ／ｈｍ２。鱼贝对施入氮、磷的利用率分别为１５．０６％和６．８０％，比单养罗非鱼要高；总生产力和总负荷力都明显高于单养罗非鱼。
During July 10￣September 16, 1995, the experiment was carried out at the No. 2 Shrimp Farm, Huanghai Aquatic Product Group Co., Yantai, China. Four land based enclosures (each 5m×5m in size) set in a seawater pond and each equipped with a special water stirrer (90W) were used for the polyculture trials of Taiwan red tilapia (Oreochromis mossambicus×O. niloticus) and short neck clam (Ruditapes philippinarum). The results show that the polyculture of the filter feeding fish and mollusc in the fertilized seawater pond has been proved to be feasible. The productivities of the mollusc and the fish were 1.24g/m 2.d and 1.86g/m 2.d, respectively. The carrying capacities of the fertilized pond for the clams and the tilapias were 3830.0kg/ha and 1580.8kg/ha, respectively. The utilization ratios of nitrogen to phosphorus by fish and molluscs in the fish mollusc polyculture system were 15.06% and 6.80%. Our findings show that the utilization ratio, the total productivity and total carrying capacity in the polyculture system of fish and mollusc are higher than those in fish culture systems.
基金
国家攀登计划B
PD-B6-7-3专题
国家自然科学基金
鲁科计(93)项目
关键词
海水池塘
施肥
混养
滤食性
鱼
贝
seawater pond
fertilization
polyculture
filter feeding fish and mollusc
