Investigation on the feasibility of cultivation of fingerling of the roach (Rutilus rutilus caspicus) until marketable size in the earthern pond with brackish and fresh waters

Item Type monograph

Authors Piri, Hossein; Piri, M.; Haghpanah, A.; Hamitabari, A.; Ghorbani, R.; Mazandarani, M.; Shakiba, M.; Iri, Y.; Shafei, A.; Kor, A.; Ahmadi, A.; Jabbari, E.; Yelghi, S.; Sepahdari, A.

Publisher Iranian Fisheries Science Research Institute

Download date 28/09/2021 06:40:28

Link to Item http://hdl.handle.net/1834/39781

: (Rutilus rutilus caspicus)

:

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. 71 . - Ainsworth, A.J.;Bowser, P.R. and Bbeleau,M.H.,1985.Serum cortisol levels in channel catfish, from production ponds. Prog. -Cult., Vol.47, pp.176-181. - Barton,B.A. ; Peter, R.E. and Paulencu, C.R. ,1980.Plasma cortisol levels of fingerling rainbow trout at rest , and subjected to handling,confinement, transport, and stoking. Can.J.fish. Aquat.Sci., Vol. 37, pp.805-811. - Berg, L.S.1949.Freshwater of the USSR and adjacent countries, program for Scientific translation Jeruslem.Vol.3. - Biswas,S.P.1993. Manual of methods in fish biology. laboratory dibrugyrh university dibaarugrach. 43 /...

- Boyd,C.E.,andWalley, W.W.,1975. Total alkalinity and hardness of surface waters in Alabama and Mississippi.Bulletin No.465.Auburn, AL:Aubum University Alabama Agriculture Experiment Station. - Boyd ,C.E., 1979. Water quality in warmwater fish pond . Auburn,AL:Auburn University Alabama Agriculture Experiment. - Conides, A. J., Parpoura, A.R., and Fotis, G. 1997. Study on the effects of salinity on the fry of the euryhaline species gilthead sea bream ( Sparus aurata ). J. Aquac. Trop. 12: 297-303. - Dendrinos, P., and Thorpe, J.P. 1985. Effects of reduced salinity on growth and body composition in the European bass Dicentrarchus labrax . Aquac . 49: 333-358. - Fagerlund, U.H.m.;McBride, J.R. and Stone,E.T.,1981.Stress-related effects of hatchery rearing density on Coho salmon.Trans. Am.Fish.Soc., Vol. 110,pp.644 - 649. - Gatlin, D.M.III; Poe, W.E. ; Wilson, R.P.;Ainsworth, A.j. and Bowser, P.R. , 1986. Effects of stoking density and vitamin C status on vitamin E-adequate and vitamin E-deficient fingerling channel catfish . Aquaculture,Vol.56, pp.187-195. - Guizheri, D. 1993. Effect of fluctuating salinity on growth of larval fish, (translated). Reservoir Fish. 4: 53-55. - Gutt, J. 1985. The growth of juvenile flounders ( Platichthys flesus ) at salinities of 0, 5, 15 and 35ppt. J. Appl. Ichthyol. 1: 17-26. - Huet,M.,1986. Textbook of fish culture , Breeding of Cultivation of fish . Second edition Fishing News Book Ltd.pp.151-163. - Imsland, A.K.,Foss,A., Gunnarsson, S., Berntssen, M., FitzGerald ,R., Wendelaar Bonga, S.E., van Him, E., Naevdal, G., and Stefansson, S.O. 2003. The interaction of temperature and salinity on growth and food conversion in juvenile turbot ( Scophthalmus maximus ). Aquac. 198: 353-367. - Imsland, A.K., Foss, A., and Stefansson, S.O. 2003. Gill Na +, K +-ATPase activity, plasma chloride and osmolality in juvenile turbot ( Scophthalmus maximus) reared at different temperature and salinities. Aquac. 218: 671-683. - Kiabi , B .;Abdoli , A . and Naderi, M. ,1999. Status of the fish fauna in the soth Caspian Basin of Iran. Jornal of Zoology in the Minddle East . Vol . 18 , pp.57-65. - Kilambi, R.V., and Zdinak, A. 1980. Effect of acclimation on the salinity tolerance of grass carp (Ctenopharyngodon idella ). J. Fish Biol, 116: 171-175. - King M.,1997.Fishing Biology Assesment and Management,Fishing News Books,P.497. - Klinger, H.;Delventhal, H.and Hilga, V., 1983.Water quality and stokingdensity as stressors of channel catfifh( Ictalurus punctatus Raf.) Aquaculture.Vol.30,pp.263-272. - Kuliev,Z.M., 1984. Variation of morphometric indices in Caspian vobla, Rutilus rutilus caspicus , Journal of Ichthyology , 24(6) : 139 – 148. - Likongwe, J. S., Stecko, T.D., Stauffer, J. R., and Carline, R.F. 1996. Combined effects of water temperature and salinity on growth and feed utilization of juvenile Nile tilapia ( Oreochromis niloticus ). Aquac. 146: 37-46. - Luz, R.K., martinez-Alvarez, R.M., De Pedro, and Delgado, N., 2008. Growth , Food intake and metabolic adaptations in gold fish ( Carassius auratus ) exposed to different salinities. Aquaculture, 276: 171-178. - Meade,J.W.,1989.Aquaculture Management. New York:van Nostrand Reinhold. - Osse,J.W.M.,andJ.G.M van den Boogaart.1995.Fish larveae,development,allometric growth and the aquatic environment. ICES mar.sci.Symp.201:21-34. - Pickering, A.D. and Stewart, A.,1984.Accllimation of the interregnal tissue of brown trout, Salmo trutta L.,to chronic crowding stress. Journal of Fish Biol., Vol.24,pp.731-740. - Pursley,M.G.and Wotters, W.R.,1989. Water quality affects growth of young redfish.Louisiana Agriculture 32:pp.14-15. - Savenkova,T.P. 1989.Turkmen roach . In: . Ichthyofauna and comercial resources.Nauka Press.Moscow pp. 137-139. - Sawyer , C.N.and McCarty,P.L.,1978.Chemistry for Environmental Engineering.New York:McGraw.Hill. - Stauffer, J.R., Van D.K., and Hocutt, C.H. 1984. Effects of salinity on preferred and lethal temperatures of the blackchin tilapia, Sarotherodon melanotheron . Water Redour. Bull. 20(5): 771-775. - Strubalina.N.K,Cheryavskiy.v.i.1992.Growth of the northern . Rutilus rutilus caspius under contemporary environment Condition Caspian Scientific Research Institute of fisheries Astrakhan. - Tucker,C.S. and Robinson,E.H.,1990. Channel Cat fish Farming Handbook.New York ;van NostrandReinhold. 44/ - Wang, X.;Kim,K.W.;Bai, S.c. ; Hug,M.D. and Cho, B.Y., 2003 . Effect of the dhfferent levels of dietary vitamin C on growth and tissue ascorbic acid changes in parrot fish ( Oplegnathus fasciatus ). Aquaculture, Vol.215,pp.203-211. - Wang, J.Q., Lui, P.H., and Fan, L. 1997. Influence of salinity on food consumption, growth and energy conversion efficiency of common carp ( Cyprinus carpio ) fingerling. Aquac. 148: 115-124. - Wedemeyer, G.A.,1976. Physiological response of juvenile coho salmon ( Oncorhynchus kisutch )and rainbow trout (Salmo gairdneri) to handling and crowding stress in intensive fish culture.Jurnal of Fish . Res. Board Can.,Vol.33,pp.2699-2702. - Whitehead, P.J.P.,1986.FAO species catalogue of the world.FAO, Pome . 216p.

45 /...

Abstract In this study monoculture of roach ( Rurilus rutilus caspicus ) in freshwater and brackish water with 3 stocking densities as 10000, 15000, and 20000 specimens per hectare with 3 replications each carried out from the beginning of May till October 2001. Moreover, in order to, compare cultivation of roach in freshwater with brackish water another density of 10000 specimens per hectare with 3 replication also took place. Fingerlings from the Sijoval cultivation Center were stocked in a pond for wintering and after preparation of rearing ponds in second year were introduced to the pond according to appropriate and calculated stocking density. Fingerlings were fed by concentrated food which is given to white fish for feeding (SFK) up to 30 g in weight of fingerlings. Feeding calculation based on percentage of body weight varied from 5 to 15 % of body weight. Moreover, appetite of fish also considered for feeding the fingerlings. Average weight and length in the first year from hatching time up to the end of rearing period were 5.55±1.58 g and 8.57±1.02 cm. Results indicate that in the second year and in the different stocking density the average weight and length at the end of cultivation period with minimum treatment were 56.68±16.5 g and 16.79±1.21 cm respectively. In maximum stocking density the mean average length was 16.74±1.23 cm and mean average weight was 55.33±16.5. In order to compare cultivation of roach in freshwater with brackish water another stocking density of 10000 specimens per hectare with 3 replications also took place in this study. Fingerlings with average weight of 6.5±1.82 g and average length of 9.5±1.24 cm were introduced to the ponds. At the end of rearing period average final weight was 48.53±9.41 g with average length of 15.15±1.08 cm. Average daily growth in freshwater treatment from the minimum to the maximum stocking density was 0.22, 0.26, and 0.23 respectively. In brackish water replication the average daily growth was 0.22. FCR in the freshwater treatment from the minimum to the maximum stocking density was 4.4, 4.46, and 4.4 respectively and in brackish water it was 3.14. Average condition factor in freshwater was from 2.41 in the second treatment to 2.69 in the first treatment and 2.56 in the third treatment. The average value CF in brackish water was 1.39. Survival rate in the freshwater treatment from the minimum to the maximum stocking density was 85.41, 82.21, and 82.76 % respectively and in brackish water it was 88.73. Key words : Roach ( Rurilus rutilus caspicus ), cultivation, brackish water, freshwater, earthen ponds.

Ministry of Jihad – e – Agriculture AGRICULTURAL RESEARCH, EDUCATION & EXTENTION ORGANIZATION IRANIAN FISHERIES RESEARCH ORGANIZATION – Inland Waters Aquatics Stocks Research Center

Title : Investigation on the feasibility of Cultivation of Fingerling of the Roach (Rutilus rutilus caspicus ) until marketable size in the earthern pond with brakish and fresh waters Apprpved Number: 2-77-12-86082 Author: Hossein Piri Executor : Hossein Piri Collaborator : Piri,M., Haghpanah,A.,Hamitabari,A.,Ghorbani,R.,Mazandarani ,M.,Shakiba,M.,Iri ,Y.,Shafei , A., Kor , A., Ahmadi,A.,Jabbari,E.Yelghi,S., Sepahdari ,A. Advisor(s): - Supervisor: - Location of execution : Gorgan Province Date of Beginning : 2008 Period of execution : 3 Years & 4 Months Publisher : Iranian Fisheries Research Organization Circulation : 20 Date of publishing : 2013

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MINISTRY OF JIHAD - E - AGRICULTURE AGRICULTURAL RESEARCH, EDUCATION & EXTENTION ORGANIZATION IRANIAN FISHERIES RESEARCH ORGANIZATION- Inland Waters Aquatics Stocks Research Center

Title: Investigation on the feasibility of Cultivation of Fingerling of the Roach(Rutilus rutilus caspicus ) until marketable size in the earthern pond with brakish and fresh waters

Executor : Hossein piri

Registration Number 41508