Suspension aquaculture of filter-feeding bivalves has been developing rapidly in coastal waters in the world, especially in
China. Previous studies have demonstrated that dense populations of filter-feeding bivalves in shallow water can produce a large
amount of faeces and pseudofaeces (biodeposits) that may lead to negative impacts on the benthic environment. To determine
whether the deposit feeder Stichopus (Apostichopus) japonicus Selenka can feed on bivalve biodeposits and whether the sea
cucumber can be co-cultured with bivalves in suspended lantern nets, three experiments were conducted, two in tanks in the
laboratory and one in the field. In a 3-month flow-through experiment, results showed that sea cucumbers grew well with specific
growth rate (SGR) reaching 1.38% d−1, when cultured in the bottom of tanks (10m3 water volume) where scallops were cultured in
suspension in lantern nets. Moreover, results of another laboratory experiment demonstrated that sea cucumbers could survive well
on bivalve biodeposits, with a feeding rate of 1.82±0.13g dry biodeposits ind−1 d−1, absorption efficiency of organic matter in
biodeposits of 17.2%±5.5%, and average SGR of 1.60% d−1. Our longer-term field experiments in two coastal bays (Sishili Bay
and Jiaozhou Bay, northern China) showed that S. japonicus co-cultured with bivalves also grew well at growth rates (0.09–0.31g
wet weight ind−1 d−1) depending on individual size. The results suggest that bivalve lantern nets can provide a good habitat for sea
cucumbers; and the co-culture of bivalve molluscs with sea cucumbers may provide an additional valuable crop with no additional
inputs.
© 2006 Elsevier B.V. All rights reserved.
Keywords: Sea cucumber; Stichopus japonicus; Feeding; Growth; Biodeposit; Bivalve; Lantern net; Co-culture; Sishili Bay; Jiaozhou Bay; China
Suspension aquaculture of filter-feeding bivalves has been developing rapidly in coastal waters in the world, especially inChina. Previous studies have demonstrated that dense populations of filter-feeding bivalves in shallow water can produce a largeamount of faeces and pseudofaeces (biodeposits) that may lead to negative impacts on the benthic environment. To determinewhether the deposit feeder Stichopus (Apostichopus) japonicus Selenka can feed on bivalve biodeposits and whether the seacucumber can be co-cultured with bivalves in suspended lantern nets, three experiments were conducted, two in tanks in thelaboratory and one in the field. In a 3-month flow-through experiment, results showed that sea cucumbers grew well with specificgrowth rate (SGR) reaching 1.38% d−1, when cultured in the bottom of tanks (10m3 water volume) where scallops were cultured insuspension in lantern nets. Moreover, results of another laboratory experiment demonstrated that sea cucumbers could survive wellon bivalve biodeposits, with a feeding rate of 1.82±0.13g dry biodeposits ind−1 d−1, absorption efficiency of organic matter inbiodeposits of 17.2%±5.5%, and average SGR of 1.60% d−1. Our longer-term field experiments in two coastal bays (Sishili Bayand Jiaozhou Bay, northern China) showed that S. japonicus co-cultured with bivalves also grew well at growth rates (0.09–0.31gwet weight ind−1 d−1) depending on individual size. The results suggest that bivalve lantern nets can provide a good habitat for seaแตงกวา และวัฒนธรรมร่วมของมอลลัสกา bivalve กับแตงกวาทะเลอาจมีพืชมีคุณค่าเพิ่มเติมมีเพิ่มเติมปัจจัยการผลิต© 2006 Elsevier b.v สงวนลิขสิทธิ์ทั้งหมดคำสำคัญ: ปลิง Stichopus japonicus อาหาร เจริญเติบโต Biodeposit Bivalve โคมไฟสุทธิ วัฒนธรรมร่วม อ่าว Sishili อ่าว Jiaozhou ประเทศจีน
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