A study on the growth of horse mackerel (Trachurus mediterraneus Aleev, 1956) from Bulgarian waters of the Black Sea using length frequency analysis
Institute of Oceanology, Bulgarian Academy of Sciences, Department of Marine Ecology and Biology, 40 First of May Street, Po. B. 152, 9000 Varna, BULGARIA
Length frequency data of horse mackerel Trachurus mediterraneus ponticus were collected from commercial net catch from Bulgarian Black Sea waters. Sampling covered the fishing season from May to December in 2012. FISAT II software program was used to analyze its length frequency distribution. The corresponding values of asymptotic length L∞ using ELEFAN I ranged from 18.11 and 19.26 cm, K values were 0.51 year-1 and 0.44 year-1 , for males and females, respectively. L∞ estimated by Bhattacharya and Ford-Walford method ranged from 18.90 and 19.11 cm for males and females, respectively. Meanwhile,L∞ by Wetherall and Bertalanffy method shows 18.24 and 18.78 cm for males and females, respectively. The instantaneous rate of total mortality (Z), natural mortality (M) and fishing mortality (F) were estimated and accordingly the exploitation ratio was determined. The Z estimated by length cohort analysis ranged from 1.42 for females and 1.62 for males. The Beverton relative yield per recruit model analysis showed that EMSY, the maximum (Y’/R), was obtained at nearly the same value for females =(0.37) and males (0.38).
Keywords: Population parameters, mortality, exploitation rate, horse mackerel, Black Sea
Aleev Yu, G. (1952) Horse Mackerel of the Black Sea: VNIRO press, 5-16 pp. (in Russian).
Aleev Yu, G. (1957) Horse mackerel (Trachurus) of the Soviet seas. Tr. Sevastopol. Biol. St. 9: 167-212 (in Russian).
Beverton, R. J. H., Holt, S. J. (1966) Manual of methods for fish stock assessment. Tables of yield functions. FAO Fisheries Technical Paper/FAO Document Rome 38 (1): 1-67.
Bhattacharya, C. G. (1967) A simple method of resolution of a distribution into Gaussian components. Biometrics 23: 115-135.
Dobrovolov, I. (1986) Study of population structure of the Black Sea horse mackerel with gene-markers. Report – Anniversary National Conference of Biology 29-31 May; Pleven.
Dobrovolov, I., Dobrovolova, S. (1983) Biochemical polymorphism of the Black Sea and Mediterranean scads. Proceed Institute of Fishery Resources (IFR), Varna, XX: 101-107.
Ford, E. (1933) An account of the herring investigations conducted at Plymouth during the years from 1924-1933. J. Mar. Biol. Assoc. U.K. 19: 305-384.
Garcia, S. M. (1984) A note on environmental aspects of penaeid shrimp biology and dynamics. In: Penaeid shrimp- Their Biology and Dynamics. (eds., J. A. Gulland and B. J. Rothschild), Fishing News Books Ltd, Farnham, UK, pp. 268-271.
Garcia, S. M. (1985) Reproduction, stock assessment models and population parameters in exploited penaeid shrimp populations. In: Second Australian National Prawn Seminar, (eds., P. C. Rothlisberg, B. J. Hill and D. J. Staples), Cleveland, Australia, pp. 139-158.
Garcia, S. M., Le Reste, L. (1981) Life cycles, dynamics, exploitation and management of coastal penaeid shrimp stocks. FAO Fisheries Technical Paper 203: 1-215.
Gayanilo, F. C. Jr., Pauly, D. (1997) The FAO ICLARM Stock Assessment Tools (FISAT) Reference Manual. FAO Computeterized Information Series Fisheries No. 8, 262 pp.
Georgiev, Z. M., Kolarov, P. (1959) Abs. Bulletin of Bulgarian Academy of Sciences.
Georgiev, Z. M., Kolarov, P. (1962) On the migration and distribution of horse mackerel (Trachurus ponticus Aleev) in the western part of Black Sea. Arbeiten des Zentralen Forschungsinstitutes fur Fishzught und Fisherei-Varna, II: 148- 172 (in Bulgarian).
Gulland, J. A. (1971) The Fish Resources of the Ocean. West Byfleet, Fishing News (Books) Ltd., Surrey, England, 255 pp.
Ivanov, L. S., Beverton, R. J. H. (1985) The Fisheries Resources of the Mediterranen. Part two: Black Sea. FAO Studies and Reviews 60: 135 pp.
Michailov, K., Prodanov, K. (2003) Commercial fisheries of small pelagic fishes along the Bulgarian Black Sea coast during 1925-2002. International Conference on the Sustainable Development of the Mediterranean and Black Sea Environment, 4 pp.
Numann, W. (1956) Biologische Untersuchungen uber die Stocker des Bosphorus, des Schwarzen Meeres und der Marmara. Ist. Univ. (B) 4: 1.
Pauly, D. (1980) On the interrelationships between natural mortality, growth parameters, and mean environmental temperature in 175 fish stocks. ICES J. Mar. Sci. 39: 175-192.
Pauly, D. (1984) Length-converted catch curves. A powerful tool for fisheries research in the tropics. ICLARM Fishbyte 2 (1): 17-19.
Pauly, D., Soriano, M. L. (1986) Some practical extensions to Beverton and Holt’s relative yield-per-recruit model. In: The First Asian Fisheries Forum, Asian Fisheries Society, (eds., J. L. Maclean, L. B. Dizon and L. V. Hosillo), Manila, Philippines, pp. 491-496.
Prodanov, K., Mikhailov, K., Daskalov, G., Maxim, K., Chashchin, A., Arkhipov, A., Shlyakhov, V., Ozdamar, E. (1997) General fisheries council for the Mediterranean FAO. Environmental management of fish resources in the Black Sea and their rational exploitation. Studies and Reviews 68: 73-81.
Raykova-Petrova, G., Zivkov, M. (1987) Biological meaning and practical use of the parameters from Bertalanffy equation in fish. Contemporary achievements of the Bulgarian zoology, Institute of Zoology – BAS, 105 (in Bulgarian).
Santic, M., Jardas, I., Pallaoro, A. (2002) Age, growth and mortality rate of horse mackerel Trachurus trachurus (L.) living in the eastern central Adriatic. Periodicum Biologorum 104: 165-173.
Sparre, P., Venema, S. C. (1998) Introduction to tropical Fish Stock Assessment. Manual. FAO Fisheries Technical Paper 306/1, Rev. 2, Rome, pp. 407.
Stoyanov, St., Georgiev, Z., Ivanov, L., Hristov, D., Kolarov, P., Aleksandrova, K., Karapetkova, M. (1963) Fishes in the Black Sea. State Publishing House, Varna, pp. 101.
Şahin, T., Genc, Y., Okur, H. (1997) Investigation of the growth and reproduction of horse mackerel (Trachurus mediterraneus ponticus Aleev) population in Turkish Black Sea coast. Turk. J. Zool. 21: 321-328 (in Turkish).
Tichonov, V. (1955) Material knowledge of the large size type of Black Sea horse mackerel image life.Tr. Az Cherniro. 16: 177-191 (in Russian).
Tserpes G., Tsimenidis, N. (2001) Age, growth and mortality of Serranus cabrilla (Linnaeus, 1785) on the Cretan shelf. Fish. Res. 51: 27-34.
Turan, C. (2004) Stock identification of Mediterranean horse mackerel (Trachurus mediterraneus) using morphometric and meristic characters. ICES J. Mar. Sci. 61 (5): 774-781.
Walford, L. A. (1946) A new graphic method of describing the growth of animals. Biol. Bull. 90: 141-147.
Weatherley, A. H. (1972) Growth and Ecology of Fish Ecology of Fish Populations. Academic Press, London, 293 pp.
Yankova, M., Raykov, V. (2006) Approximate assessment of the horse mackerel natural mortality rate, Trachurus mediterraneus ponticus, Aleev in the Bulgarian Black Sea territorial waters. Secretary Marine I.N.C.D.M. 36: 341- 348.
Yankova, M., Raykov, V., Gerdzhikov, D., Bogomilova, P. (2010) Growth and length-weight relationships of the Horse Mackerel, Trachurus mediterraneus ponticus (Aleev, 1956), in the Bulgarian Black Sea Coast. Turk. J. Zool. 34 (1): 85-92.
Zivkov, M., Trichkova, T., Raikova-Petrova, G. (1999) Biological reasons for unsuitability of growth parameters and indexes for comparing fish growth. Environmental Biology of Fishes 54: 67-76.