Metabolic Rate Characteristics and Sediment Cleaning Potential of the Tropical Sea Cucumber Holothuria scabra

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

The oxygen consumption rate (OCR) and ammonium excretion rate (AER) of a tropical sea cucumber, Holothuria scabra, were determined in laboratory experiments. OCR and AER exhibited a significant negative correlation to body weight (BW), expressed as a power function of BW: OCR = 0.09 × BW-0.58 (mgO2/g/h, r2=0.89, n=15) and AER = 0.38 × BW-0.19 (μmolN/g/h, r2=0.54, n=15). These values were comparable to those in previous studies on other sea cucumber species. The OCR of shrimp tank sediment was reduced to less than half (4.5 ± 0.3 to 1.0 ± 0.1 mgO2/gdry/h) by the ingestion and excretion process of H. scabra. Acid volatile sulfide (AVS-S) concentration was also decreased to less than half (0.67 to 0.31 mgS/mgdry); despite the low reduction rates of organic carbon and nitrogen contents (0.19 to 0.14 mgC/mgdry and 0.022 to 0.019 mgN/mgdry, respectively). These results suggest that components in the sediment with high oxygen consumption potential were removed by H. scabra. These findings also provide fundamental information with which to evaluate the quantitative role of H. scabra in polyculture with shrimp.

作成者 KODAMA Masashi SUMBING Joemel Gentelizo LEBATA-RAMOS Maria Junemie Hazel WATANABE Satoshi

ammonium excretion


oxygen consumption


shrimp aquaculture

公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 79
終了ページ 84
DOI 10.6090/jarq.49.79
権利 Japan International Research Center for Agricultural Sciences
言語 eng