Survival rate and restricted growth of marbled crab (Pachygrapsus marmoratus) in different salinity levels
Abstract
The semi-terrestrial marbled crab (Pachygrapsus marmoratus Fabricius, 1787) is one of the most common species in the intertidal belt of rocky shores of the Mediterranean Sea. This study aimed to understand survival and restricted growth of marbled crab in different salinity levels (0, 5, 15, 25, 35‰) and dry area (D). Crabs were collected from rocky shores by hand in İzmir in January 2018. Specimens (initial mean weights of 0.82±0.01 g and n=180) were randomly distributed to 10-L aquariums with three replicates and they were not fed during the experiment. Results indicated that the survival times of crabs showed significant differences in salinity levels (P<0.001). All the individuals in the dry area and 0‰ salinity level died within the first 2 months. For the other salinity levels, all specific growth rate values decreased at minus on 84th day. Forty percent of crabs in aquariums that represented 15‰ salinity level were survived until the 126th day and the experiment was ended in the 140th day when the mortality of the last crab (0.73 g) occurred. In conclusion, the optimal salinity level for the survival and restricted growth of P. marmoratus was determined as 15‰ and 25‰, respectively. Future surveys would need to investigate the effects of different food types on survival and growth of this potential ornamental crab species of marine aquariums.
Keywords
References
- APPA. (2018). The 2017-2018 APPA National Pet Owners Survey Debut. http://americanpetproducts.org/Uploads/MemServices/GPE2017_NPOS_Seminar.pdf (Access Date: 07.05.2018).
- Arab, A., Kazanjian, G. & Bariche, M. (2015). Biological traits suggest a niche overlap between two grapsid crabs sharing the rocky intertidal of the eastern Mediterranean. Journal of the Marine Biological Association of the United Kingdom, 95(8), 1685-1692. DOI: 10.1017/S0025315415001010
- Aydın, M., Karadurmuş, U. & Tunca, E. (2014). Biological characteristics of Pachygrapsus marmoratus in the southern Black Sea (Turkey). Journal of the Marine Biological Association of the United Kingdom, 94(7), 1441-1449. DOI: 10.1017/S0025315414000253
- Blaszkowski, C. & Moreira, G.S. (1986). Combined effects of temperature and salinity on the survival and duration of larval stages of Pagurus criniticornis (Dana) (Crustacea, Paguridae). Journal of Experimental Marine Biology and Ecology, 103(1-3), 77-86. DOI: 10.1016/0022-0981(86)90133-4
- Bryars, S.R. & Havenhand. J.N. (2006). Effects of constant and varying temperatures on the development of blue swimmer crab (Portunus pelagicus) larvae: laboratory observations and field predictions for temperate coastal waters. Journal of Experimental Marine Biology and Ecology, 329(2), 218-229. DOI: 10.1016/j.jembe.2005.09.004
- Calado, R., Lin J., Rhyne, A.L., Araújo R. & Narciso L. (2003a). Marine ornamental decapods - popular, pricey and poorly studied. Journal of Crustacean Biology, 23, 963-973. DOI: 10.1651/C-2409
- Calado, R., Narciso, L., Morais, S., Rhyne, A. L. & Lin, J. (2003b). A rearing system for the culture of ornamental decapod crustacean larvae. Aquaculture, 218(1-4), 329-339. DOI: 10.1016/S0044-8486(02)00583-5
- Calado, R., Vitorino, A., Dionísio, G. & Dinis, M.T. (2007). A recirculated maturation system for marine ornamental decapods. Aquaculture, 263(1-4), 68-74. DOI: 10.1016/j.aquaculture.2006.10.013
Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Onur Karadal
*
0000-0002-6241-5039
Türkiye
Publication Date
December 15, 2018
Submission Date
May 28, 2018
Acceptance Date
September 6, 2018
Published in Issue
Year 2018 Volume: 35 Number: 4
Cited By
Population Structure and Relative Growth of the Marbled Crab (Pachygrapsus marmoratus) in the Aegean Sea (Turkey)
Thalassas: An International Journal of Marine Sciences
https://doi.org/10.1007/s41208-020-00234-8Growth performance, molting frequency and carapace coloration of marbled crab (Pachygrapsus marmoratus) in different salinity levels
Ege Journal of Fisheries and Aquatic Sciences
https://doi.org/10.12714/egejfas.39.3.08