Effects of Different Types of Substrates on Growth of Crayfish Cherax destructor (Clark, 1936)
Abstract
This research was to study the effect of different substrates (black earth soil, black Japanese pebble, and no substrate) on weight, length molting and growth rates (body weight) of crayfish C. destructor. Crayfishes used in the experiment had an average weight of 0.29±0.02 g and an average length of 1.87±0.10 cm. Crayfishes were reared in glass aquarium tanks with different substrates at 27º C. The change in weight, length, molting and growth rates (body weight) were measured at the beginning and end of the experiment for eight weeks. It has been found that the growth rates (body weight) of crayfish reared in the tank with black earth soil, black Japanese pebble, and no substrate were 0.047±0.007, 0.054±0.005 and 0.040±0.007 g/day, respectively, which were statistically different (p <0.05). The mean weight changes were 3.02±0.31, 3.47±0.23 and 2.57±0.39 g, respectively, which were statistically different (p <0.05). The mean length changes were 3.64±0.23, 4.62±0.26 และ 2.94±0.60 cm, respectively, which were statistically significantly different (p <0.05) The number of molts was an average of 5.33±0.71, 5.89±0.33 และ 3.78±1.09 times, respectively, with no significant difference between black earth soil and black Japanese pebble but the black Japanese pebble and black earth soil are statistically significant difference with the one that no substrate. Therefore, it is concluded that different substrates affect the change in weight, length molting and growth rate (body weight). The most suitable substrate for rearing crayfish C. destructor is the black Japanese pebble followed by black earth, soil and no substrate. Keywords: substrate, growth, crayfish Cherax destructorReferences
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Law, T. (2020). Plant Aquarium Substrate: Soil, Gravel, and Sand. from https://buceplant.com/blogs/news/planted-aquarium-substrate-soil-gravel-and-sand.
Beatty S., Morgan D. and Gill H. (2005). Role of Life History Strategy in the Colonisation of Western Australian Aquatic Systems by the Introduced Crayfish Cherax destructor (Clark, 1936). Hydrobiologia 549 (1): 219 – 237.
Habashy, M.M. and K. M. Sharshar (2020). On some factors affecting molting and growth rate of the giant freshwater prawn, Macrobrachium rosenbergii (De Man, 1879). Egyptian Journal of Aquatic Biology & Fisheries, 24(2): 163-175.
Jones, C.M. (1990). The Biology and Aquaculture Potential of the Tropical Freshwater Crayfish, Cherax quadricarinatus. Report No. QI90028. Department of Primary Industries, Queensland, Brisbane, Australia. 109 pp.
Karplus I. and Barki A. (2004). Social control of growth in the redclaw crayfish, Cherax quadricarinatus: testing the sensory modalities involved. Aquaculture, 242: 321–333.
Kawai, T., Faulkes, Z. and Scholtz, G. (2016). Freshwater Crayfish: A Global Overview. CRC Press, Taylor & Francis Group, A Science Publishers Book, 512 pp.
Kuypers, MMM; Marchant, HK; Kartal, B (2011). "The Microbial Nitrogen-Cycling Network". Nature Reviews Microbiology. 1 (1): 1–14.
Law, T. (2020). Plant Aquarium Substrate: Soil, Gravel, and Sand. from https://buceplant.com/blogs/news/planted-aquarium-substrate-soil-gravel-and-sand.
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2023-01-04
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