Growth and mortality parameters of bigeye tuna, Thunnus obesus, caught off the Brazilian Southeast-southern coast (1977-95)
Keywords:
fish, Thunnus obesus, growth and mortality, fisheries biology, BrazilAbstract
The growth and mortality parameters of bigeye tuna, Thunnus obesus (Lowe, 1839), caught by longliners settled in Santos (SP) and operating off the Brazilian Southeast-southern coast, from 1977 to 1995, were estimated: K = 0.136 and Ly = 295.5 cm, through the identification of the modal classes. The rate of total mortality calculated by the capture curve method of the software ELEFAN II presented more consistent results. The RIKHTER and EFANOV (1976) method, whose result was similar to those of the literature, was used for the calculation of the rate of natural mortality. The state of exploitation of the stock shows overfishing during the 1977-1995 period, but such a conclusion should be seen with caution because the studied area represents just a little part of the whole Atlantic.
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1-553.
CERGOLE, M.C. 1993 Avaliação do estoque da sardinhaverdadeira, Sardinella brasiliensis, da costa sudeste
do Brasil, período 1977 a 1990. São Paulo. 245 p. Tese (Doutorado em Ciências) í Instituto Oceanográfico, USP.
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DIOUF, P.C.T. 1984 Croissance du thon obese (Thunnus obesus) de l’Atlantique d’apres les resultats de marquage. Coll. Vol. Sci. Pap., ICCAT, Madrid,20(1): 180-187.
FAGUNDES, L.; ARFELLI, C. A.; AMORIM, A.F. 2000 Análise da pesca da albacora-bandolim, Thunnus obesus, no
FAGUNDES, ARFELLI, AMORIM litoral sudeste-sul do Brasil (1977-1995). Arq. Ciên. Mar,Fortaleza, 33: 17-25.
GAIKOV, V. Z.; CHUR, V.N.; ZHAROV, V. L.; FEDOSEEV, Y. P. 1980 On age and growth of the Atlantic bigeye
tuna. Coll. Vol. Sci. Pap., ICCAT, Madrid, 9(2): 294-302.
________ e FEDOSEEV, Y.P. 1986 The influence of temperature and biotic factors on vertical distribution of bigeye tuna (Thunnus obesus) in the Atlantic Ocean. Coll. Vol. Sci. Pap., ICCAT,Madrid, 25(1):113-117.
GUAYANILO JR., F. C.; SORIANO, M.; PAULY, D. 1989 A draft guide to the compleat ELEFAN. ICLARM SOFTWARE 2,
70. ICLARM Contr., (435): 1-71.
GULLAND, J.A. 1983 Fish stock assessment. A manual of basic methods. New York. John Wiley, 223 p.
ICCAT 1995 Report of meeting of Standing Committee on Research and Statistics (SCRS). Madrid,November 21-25, 1994. REPORT for biennial period, 1994-95, ICCAT, Madrid, Part I (1994), 2: 5-283,English version.
KUME, S. 1977 Recent status of bigeye tuna in the Atlantic ocean. Coll. Vol. Sci. Pap., ICCAT 6(1):162-167.
________ 1978 Recent status of bigeye tuna in the Atlantic ocean. Coll. Vol. Sci. Pap., ICCAT, Madrid,7(1): 114-119.
________ e MORITA, Y. 1977 On the stock structure of bigeye tuna in the Atlantic ocean. Coll. Vol. Sci. Pap.,ICCAT, Madrid, 6(1): 149-155.
MIYABE, N. 1994 A review of the biology and fisheries for bigeye tuna, Thunnus obesus, in the Pacific Ocean.
Interactions of Pacific Tuna Fisheries. FAO Fish. Tech. Pap., 356/2: 207-243.
MIYAKE, M. 1990 Field Manual for statistics and sampling Atlantic tunas and tuna-like fishes. 3.ed. Madrid: International Commission for the Conservation of Atlantic Tunas. 184 p.
MOLINA, A. D. e SANTANA, J. C. 1986 Estimación de la edad y crecimiento del patudo (Thunnus obesus, Lowe, 1939) capturado en las Islas Canarias. Coll. Vol. Sci. Pap.,ICCAT, Madrid, 25: 130-137.
NOAA 1995 Status of fishery resources off the Southeastern United States for 1993. NOAA - Technical Memorandum, 26p., Feb.
OVCHINNIKOV, V. V. 1971 Swordfishes and billfishes in the Atlantic Ocean. Trad. H. Mills. Jerusalém. Israel Prog.
for Sci. Transl., 77 p. Original russo.
PAULY, D. 1980 On the interrelationships between natural mortality, growth parameters, and mean environmental temperature in 175 fish stocks. J. Cons. Int. Expl. Mer,39(2): 175-192.
PAULY, D. 1983 Some simple methods for the assessment of tropical fish stocks. FAO Fish.Tech.Pap., Rome,
(234): 52 p.
________ 1984a Length-converted catch curves: a powerful tool for fisheries research in the tropics (Part II). ICLARM Fishbyte, 2(1): 17-19.
________ 1984b Length-converted catch curves: a powerful tool for fisheries research in the tropics (Part III). ICLARM Fishbyte, 2(3): 9-10.
PEREIRA, J. 1987 Analyse de l’etat du stock de patudo Atlantique. Coll. Vol. Sci. Pap., ICCAT, Madrid, 26(1):
141-167.
RIKHTER, V. A. e EFANOV, V. N. 1976 On one of the approaches to estimation of natural mortality of fish populations.ICNAF Res. Doc., 76/VI/8:12 p.
SANTOS, E.P. dos 1978 Diní¢mica de populações aplicada í pesca e a piscicultura. São Paulo.HUCITEC-EDUSP, 129 p.
SPARRE, P. e VENEMA, S. C. 1992 Introduction to tropical fish stock assessment. Part 1. Manual. FAO Fish. Tech.
Pap., Rome, (306/1) rev. 1: 376 p.
SSENTENGO, G. W. e LARKIN, P. A. 1973 Some simple methods of estimating mortality rates of exploited fish populations. J. Fish. Res. Board Can., 30:695-698.
ZAVALA-CAMIN, L. A. 1982 Distribución vertical y estacional de túnidos y otras especies pelágicas en el sudeste y sur del Brasil, obtenida por medio de analysis de contenido estomacal. Coll. Vol. Sci. Pap., ICCAT,Madrid, 17(2): 439-443.
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2018-06-28
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