海水养虾池浮游动物对浮游植物牧食力的研究  

IN SITU GRAZING CAPACITY OF ZOOPLAKTON GRAZINGON PHYTOPLANKTON IN MARINE SHRIMP PONDS

作　　者：赵文[1] 刘国才[1] 

机构地区：[1]青岛海洋大学

出　　处：《生态学报》1999年第2期217-222,共6页Acta Ecologica Sinica

摘　　要：利用常规显微镜直接计数法评估了海水养虾池浮游动物对浮游藻类的牧食力，测得虾池浮游运行对水柱浮游植物的总滤水率为８０．３８ｍｌ／（Ｌ·ｈ），每个浮游动物的滤水率平均为１１．１３μｌ（ｉｎｄ·ｈ），总牧食率为１０．５０μｇ／（Ｌ·ｈ），即１．２５ｎｇ℃／（ｉｎｄ·ｈ）、浮游动物对水柱原位主要浮游藻类的选食，、以隐菏和舟形藻为最多，其次是扁藻和小环藻，６ｈ内对上述４种藻类的选食率为９２．６８％、７２．A direct counting method was used to estimate in situ grazing capacity of zooplankton grazing on phytoplankton in the marine shrimp ponds located in Haiyiang city,Shandong Province.The results showed that the total clearance rate of zooplanktonic community is 8038ml/(L·h),i.e.1113μl/(ind·h),the total grazing rate is 1050μgC/(L·h),i.e.125ngC/(ind·h).Zooplankters grazed most effectively on phytoflagellates such as Cryptomonas ovata,Navicula sp.,Platymonas cordiformis and Cyclotella sp.ect.On the basis of numbers per liter,the selective feeding rates on them were 9268%,7246%,3622% and 3256%,respectively in 6 hours,and the relevant selection indices were 07331,06717,04345 and 03913.As far as the abundance of the major algal species,3572% of it was grazed by zooplankters in the period of 6 hours.

关 键 词：海水养虾池 浮游动物 浮游植物 牧食率 

分 类 号：S963.21[农业科学—水产养殖]