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Effect of high water temperature on the survival, moulting and food consumption of Penaeus (Marsupenaeus) japonicus (Bate, 1888)

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Hewitt, D.R. and Duncan, P.F. (2001) Effect of high water temperature on the survival, moulting and food consumption of Penaeus (Marsupenaeus) japonicus (Bate, 1888). Aquaculture Research, 32 (4). pp. 305-313. ISSN 1355-557X

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Article Link: https://doi.org/10.1046/j.1365-2109.2001.00560.x


The kuruma shrimp, Penaeus (Marsupenaeus) japonicus (Bate, 1888), is a valuable aquaculture species in Queensland, Australia. The shrimp is supplied live to the Japanese market and must survive emersed transport for up to 36 h. In-transit mortality after harvest from high water temperatures (> 30°C) has been reported by the industry, and a knowledge of the effects of high water temperature may provide important information for producers on grow-out management, timing of production and farm location. Experiments were conducted to determine the effect of high water temperature on survival, moulting and food consumption in P. japonicus. Replicated groups of 15.6 ± 0.2 g shrimp were acclimated and exposed to five temperatures, between 28 and 36°C, for up to 28 days. Mortality was highest at 36°C and equally lowest between 28°C and 32°C. Intermoult period was not significantly different for temperatures between 28 and 32°C (19.8–15.5 days) but was significantly greater above 32°C (27.4 days at 34°C and > 104 days at 36°C). There was evidence of moulting synchrony at 28°C. Mean daily food consumption was highest at 32°C at 2.34% of body weight, but decreased to 1.56% at 28°C and 1.33% at 36°C. Over the range of water temperatures examined, survival, moulting rate and food consumption were highest at 32°C.

Item Type:Article
Subjects:Aquaculture and Fisheries > Fisheries > Fishery for individual species
Live Archive:09 Jan 2024 01:10
Last Modified:09 Jan 2024 01:10

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