对虾养殖围隔生态系浮游生物群落有机碳的代谢

• 作 者: 刘国才 李德尚 董双林 陈兆波
• 机 构: 青岛海洋大学水产学院,青岛海洋大学水产学院,青岛海洋大学水产学院,青岛海洋大学水产学院 青岛266003,青岛266003,青岛266003,青岛266003
• 出 处: 生态学杂志
• 发表日期: 2002年05期
• 关键词: 对虾养殖 围隔生态系统 浮游生物群落 有机碳 代谢

Metabolism of organic carbon of plankton community in shrimp cultural enclosure ecosystems was studied from May 30 to August 23,1997 in the shrimp farm of Huanghai Fishery Group corporation.The results indicated that the plankton community respiration rate fluctuated from 0.07 to 2.28mg C·L~ -1·d~ -1 with an average of 0.82±0.42mgC·L~ -1·d~ -1;in which,phytoplankton respiration rate averaged 0.34mgC·L -1·d~ -1,while zooplankton and bacteria respiration rates averaged 0.48 mgC·L~ -1·d~ -1,constituting 41% and 59% of the plankton community respiration rates respectively.Phytoplankton production rates fluctuated from 0.08 to 4.41 mgC·L~ -1·d~ -1 with an average of 1.68±0.80mgC·L~ -1·d~ -1.Its average ratio to plankton community respiration rate was 1∶0.49.The rate of plankton community respiration correlated positively with particular organic carbon concentration,but negatively with dissolved organic carbon concentration and water transparency.About 35% of the total organic carbon income was mineralized through the process of plankton community metabolism during the cultural period.

Metabolism of organic carbon of plankton community in shrimp cultural enclosure ecosystems was studied from May 30 to August 23, 1997 in the shrimp farm of Huanghai Fishery Group corporation. The results indicated that the plankton community respiration rate fluctuated from 0.07 to 2.28 mg C · L ~ -1 · d ~ -1 with an average of 0.82 ± 0.42 mgC · L ~ -1 · d ~ -1; in which, phytoplankton respiration rate averaged 0.34 mgC · L -1 · d ~ -1 while zooplankton and bacteria respiration rates averaged 0.48 mgC · L ~ -1 · d ~ -1, constituting 41% and 59% of the plankton community respiration rates respectively. Phytoplankton production rates fluctuated from 0.08 to 4.41 mgC · L ~ -1 · d ~ -1 with an average of 1.68 ± 0.80 mgC · L ~ -1 · d ~ -1.Its average ratio to plankton community respiration rate was 1: 0.49.The rate of plankton community respiration correlated positively with particular organic carbon concentration, but negatively with dissolved organic carbon concentration and water transparency. About 35% of the total organic carbon income was mineralized through the process of plankton community metabolism during the cultural period.