Jefry Jack Mamangkey, Syahroma Husni Nasution
| Abstract views: 443 | PDF views: 1459


Lake Towuti is the largest lake in the Malili Complex covering the area of 560 km and 203 m in depth. Butini is an endemic and vulnerable fish species that consumed by the local people and have an important economic value. Various activities occured in the lake was thought to be the cause of decreasing fish populations.The objective of this study was to determine the growth and mortality of butini in Lake Towuti.This research was conducted in Lake Towuti for 12 months from Mei 2006 to April 2007.Fish samples obtained by using long lines with various number of hooks i.e. 8,10,12,14,and 16.Each depth (25, 50, 75, 100, 150, and 200 m) launched one long line unit in three zones (A, B, and C).Growth and fish mortality were calculated based on total length frequency data using FiSAT II software. The results showed that the longest size (46.20 cm) was the male found at a depth of -1,200(t-to)150 m in April in Zone C.The combined Von Bertalanffy’s growth pattern was of L(t)= 46,62 [1 - e ]. While the growth pattern for each male -0,950(t-to) -0,820(t-to) and female was L(t) =46,62 [1 - e ] and L(t)= 46,62 [1 - e ] respectively. The highest total mortality was found in Zone B (5.49 per year) occurred in female fish. The highest natural mortality was observed in Zone B (1.80 per year) occurred in male fish.The highest fishing mortality was recorded in zone B (4.08 per year) and found in female fish. The highest exploitation level was found in zone A (E = 0.76) recorded in female fish.Exploitation level of butini stock in Lake Towuti indicated over-fishing (E=0.56) recorded in Zone A.


Growth, mortality, endemic fish, Glossogobius matanensis, Lake Towuti

Full Text:



Adedolapo A. 2007. Age and growth of the African butter Catfish, Schilbe mystus (Linneaus, 1758) in Asejire and oyan lakes, South-westen Nigeria. Journal of Fisheries and Aquatic Science 2 (2), 110-119.

Allan JD and AS Flecker. 1993. Biodiversity conservation in running waters. Bio Science 43, 32-43. Beverton RHJ and SJ Holt. 1957. On the dynamics of exploited fish populations., Ser. II, Vol. 19, 533. Fish Invest. Min.Agriculture. Fish food. Great Britains

Froese R and D Pauly. Fish base. World Wide Web electronic publication. www. Fish (Download on July 6, 2004).

Jones RJ. 1984. Assessing the effects of changes in exploitation pattern using length composition data. FAO Fish. Technical Paper 256, 118.

King M. 1997. Fisheries Biology, Assessment and management, 341. Fishing News Books. A Division of Blackwell Science Ltd. London.

Kottelat M. 1996. Glossogobius matanensis. In: IUCN 2004. 2004 IUCN Red List of Threatened Species. (Downloaded on December 07, 2004).

Nasution SH. 2006. Pangkilang (Telmatherinidae) ornamental fish: An economic alternative for people around Lake Towuti. Proceedings International Symposium on The Ecology and Limnology of the Malili Lakes. Bogor-Indonesia 20-22 March 2006. Eds, 39-46. PT. INCO Tbk. and Research Center for Limnology, Indonesian Institute of Sciences (LIPI).

Pauly D. 1983a. Some sampel methods for the assessment of tropical fish stock. .. FAO fish Technical Paper 234, 47 Rome.

Pauly D. 1983b. Length-converted catch curve: A powerfull tool for fisheries research in the tropics, 9-13. Part 1.. Fishbyte (ICLARM).

Pauly D. 1984. Fish population dynamics in tropical water. A Manual for usai with Programable calculators, 52. ICLARM. Manila (Philippines).

Ricker WE. 1975. Computation and interpretation of biologycal statistic of fish population. Buletin Fisheries Risearch. Canadian,283.

Salekhova LP. 1979. Centracanthidae fishes of the genus Spicarafrom the Mediterranean and Black Sea, 172. Haykova-Dumka, Kiev.

Spare P and SC Venema. 1998. Introduksi pengkajian stok ikan tropis. Badan pengembangan perikanan. Terjemahan dari Introduction to tropical fish stock assessment. FAO Fish Technical Paper 306 (1), 376.

Sulistiono, A Firmansyah, S Sofiah, M Brojo, R Affandi dan J Mamangkey. 2007. Aspek biologi ikan Butini (Glossogobius matanensis) di Danau Towuti Sulawesi Selatan. Jurnal Penelitian Perikanan Indonesia 14(1),13-22.

Tamsil A. 2000. Studi beberapa karakter reproduksi pemijahan dan kemungkinan pemijahan buatan ikan bungo (Glossogobius aureus) di Danau Tempe dan Sidenreng Sulawesi Selatan. Institut Pertanian Bogor. [Disertasi Program Pascasarjana].

Tsangridis A and N Filippousis. 1988: Lengthbased approach to the estimation of growth and mortality parameters of Spicara smaris(L.) in the Saronikos Gulf, Greece, and remarks on the application of the Beverton and Holt relative yield per recruit model. FAO Fisheries Report. 412, 94–107.

Tsangridis A. and N Filippousis. 1991: Use of length–frequency data in the estimation of growth parameters of three Mediterranean fish species: bogue (Boops boops L.), picarel (Spicara smaris L.) and horse mackerel (Trachurus trachurus L.). Fish. Res. 12, 283-297.

Tsangridis A and N Filippousis. 1992: Growthpattern of picarel Spicara smaris (L.) (Centracanthidae), a protognyous species. Cybium 3, 233-243. Wargasasmita S. 2005. Ancaman invasi ikan asing terhadap keanekaragaman ikan asli. Jurnal Iktiologi Indonesia 5()1, 5-10.

Weber M and De Beaufort. 1922. The Fishes of the Indo Australian Archipelago, 235 Vol. IV. E.J. Brill, Leiden.

Wirjoatmodjo S, Sulistiono, MF Rahardjo, IS Suwelo and RK Hadiyati. 2003. Ecological distribution of endemic fish species in Lakes Poso and Malili Complex, Sulawesi Island, 30. Asean Regional Centre for Biodiversity Conservation and the European Comission.


  • There are currently no refbacks.