Acessibilidade / Reportar erro

Age, growth and mortality of dog snapper Lutjanus jocu (Bloch & Schneider, 1801) in the northeast coast of Brazil

Abstracts

The age and growth of Lutjanus jocu was assessed through readings of growth marks in sagitta otoliths. From August 1996 to March 2000, fish were sampled (n=3.539) in the northeast portion of the Brazilian Exclusive Economic Zone. Sagitta otoliths were extracted from a sub sample of 216 individuals caught around the oceanic bank Sirius (03°59' s; 35°59' w) and over continental shelf from Ceará (05°03's; 36°02'w) to Bahía States (09°01's; 35°12'w). Opaque bands, presumed to be annual, were observed on whole (n= 210) and sectioned (n= 197) otoliths, showing ages from 0 to 20 and from 0 to 25 years respectively. The von Bertalanffy growth model was fit to length-at-age data resulting in the values of Li= 77.22 cm, K= 0.110 and t0= -3.73. Incremental widths from the first to twentieth opaque band on sectioned otoliths (n = 39) were used on back calculation of length-at-ages and the estimated values were Li= 71,20 cm, K= 0.112 e t0= -4.32. Otolith reading from sections is a reliable technique for aging L. jocu, which presented medium to high longevity and slow growth. Total mortality (Z) estimated by the catch curve was 0.134 corresponding to an annual survival rate of 87.5%. The natural mortality (M) estimated by the Ault et al. (1998) methodology was 0.12 for 25 years of longevity.

Lutjanidae; Age; Growth; Otolith; Back calculation


Idade e crescimento do Lutjanus jocu foi determinada através da leitura de marcas de aposição em otólitos sagittae. 216 indivíduos, capturados no entorno da montanha oceânica Sirius e na plataforma continental do Ceará (05°03's; 36°02'w) até a Bahia (09°01's; 35°12'w) tiveram seus otólitos extraídos. Marcas opacas que provavelmente formam-se anualmente foram observadas em otólitos inteiros (n=210) e em otólitos seccionados (n=197) apresentando peixes com idades entre 0 a 20 e 25 anos respectivamente. O modelo de crescimento de Bertalanffy ajustado por métodos não lineares dos mínimos quadrados aos dados de idade e comprimento resultou em valores de Li= 77,22 cm, K= 0,110 and t0= -3,73. Medidas incrementais da 1ª a 20ª marca opaca em otólitos seccionados (n=39) foram usadas para retrocalcular os comprimentos e as respectivas idades resultando em valores de Li= 71,20 cm, K= 0,112 e t0= -4,32. Leitura de otólitos seccionados de L. jocu é uma técnica confiável para a determinação da idade e crescimento desta espécie, que apresentou longevidade de média a alta com crescimento lento. A taxa de mortalidade total (Z) estimada através da curva de captura foi 0,134 correspondendo a 87,5% de sobrevivência anual. A mortalidade natural (M) calculada pelo método de Ault et al. (1998) foi 0,12 para uma longevidade de 25 anos.

Lutjanidae; Idade; Crescimento; Otólito; Retrocálculo


  • Bannerot, S. P.; Fox, W. W. & Powers, J. E. 1987. Reproductive strategies and management of snappers and groupers in the Gulf of Mexico and Caribbean. In: Polovina J. J. & Ralston, S. eds. Tropical snappers and groupers: biology and fisheries management. Westview Press, Oceans Resources and Marine Policy Series. p.561-604 p.
  • Beamish, R. J. & Fournier D. A. 1981. A method for comparing the precision of a set of age determinations. Can. J. Fish. aquat. Sci., 38:982-983.
  • Beverton, J. H. & Holt S. J. 1957. On the dynamics of exploited fish populations. Fish. Invest. Minis. Agric. Fish. Food (GB) (2 Sea Fish). 19:533p.
  • Buesa, R. J. 1987. Growth rate of tropical demersal fishes. Mar. Ecol. Prog. Ser., 36:191-199.
  • Burton, M. L. 2001. Age, growth and mortality of gray snapper, Lutjanus griseus, from east coast of Florida. Fish. Bull., 99:254-265.
  • Burton, M. L. 2002. Age, growth and mortality of mutton snapper, Lutjanus analis, from east coast of Florida, with a brief discussion of management implications. Fish. Res., 59 (2002) 31-34.
  • Cappo, M.; Eden P.; Newman S. J. & Robertson, S. 2000. A new approach to validation of periodicity and timming of opaque zone formation in the otoliths of eleven species of Lutjanus from Central Great Barrier Reef. Fish. Bull. 98:474-488.
  • Chapman, D. G. & Robson D. S. 1960. The analysis of a catch curve. Biometrics 16:354-368.
  • ESTATPESCA - Boletim Estatístico da Pesca Marítima e Estuarina do Nordeste do Brasil. 2001. Tamandaré, IBAMA-MMA. 21p.
  • Favro, L. D. & Kuo, K. P. 1979. Population genetic study of the effects of selective fishing on the growth rate of trout. J. Fish. Res. Bd. Can., 36:552-561.
  • Ferreira, B. P. & Russ, G. R. 1994. Age validation and estimation of growth rate of the coral trout Plectropomus leopardus (Lacepede, 1802) from Lizard Island, Northern Great Barrier Reef. Fish. Bull. 92:46-47.
  • Fonteles-Filho, A. A. 1969. Estudo preliminar da pesca do pargo, Lutjanus purpureus, Poey, no nordeste brasileiro. Arq. Ciên. Mar, Fortaleza, 9(1):83-88.
  • Fowler, A. J. & Doherty, P. J. 1992. Validation of annual growth increments in otoliths of two species of damself from southern Great Barrier Reef. Aust. J. mar. Freshwat Res., 43:1057-1068.
  • Francis, R. I. C. C. 1990. Back-calculation of fish length: a critical review. J. Fish. Biol., 36, 883-902.
  • Haimovici, M.; Reis E. G. 1989. Determinação da idade e crescimento da castanha Umbrina canosai, (PISCES, SCIENIDAE) do sul do Brasil. Atlântica, Rio Grande, 7: 25-46.
  • Harej, A. & Cowen R. K. 1995. Effect of age, growth rate, and ontogeny on the otholit size-fish size relationship in bluefish, Pomatopomus saltatrix, and implications for back-calculation of size in fish early life history stages. Can. J. Fish. aquat. Sci., 52:1909-1922.
  • Hischcorn, G. & Small, G. J. 1987. Variability in growth parameter estimates from scales of pacific cod based on scale area measurements. In: Summerfelt, R. C. & Hall G. E. eds. Age and growth of fish. Ames. Iwoa State University Press. p. 147-158.
  • Ivo, C. T. C. & Hanson A. J. 1982. Aspectos da biologia e dinâmica populacional do pargo, Lutjanus purpureus Poey, no norte e nordeste brasileiros. Arq. Ciên. Mar., 22(1/2):1-14.
  • Krug, L. C. & Haimovici, M. 1989. Idade e crescimento da enchova, Pomatopomus saltatrix do sul do Brasil. Atlântica, Rio Grande, 11(1):47-61.
  • Manooch III, C. S. 1987. Age and growth of the snappers and groupers. In: Polovina J. J. & Ralston, S. eds. Tropical snappers and groupers: biology and fisheries management. London, Westview Press. p. 329-374.
  • Mulligam, T. J. & Leaman, B. M.1992. Length-at-age analysis. Can you get what you see? Can. J. Fish. aquat. Sci., 49:632-643.
  • Murdock, J. M. & Doherty, P. J. 1997. Caution is required in back-calculating larval growth rates from pre-settlement reef fish collected with light-Traps. In: Lessios, H. A. & Macinyre, I.G. eds. Proc. 8th Intl. Coral Reef Symp., 2:1149-1154.
  • Neilson, J. D. 1992. Sources of error in otolith microstructure examination. In: Stevenson D. K. & Campana, S. E. eds. Otolith microstructure examinationa and analysis. Can. Spec. Publ. Fish. aquat. Sci., 117:115-126.
  • Newmam, S.; Cappo, M. & Williams, D. McB. 2000. Age, growth, mortality rates and corresponding yield estimates using counts of annuli in whole and sectioned otoliths of the tropical snappers Lutjanus erythropterus, L. malabaricus and L. sebae from Central Great Barrier Reef. Fish. Res., 48(2000):1-4.
  • Newman, S.; Cappo, M. & Williams, D. McB. 2000. Age and growth of the stripey, Lutjanus carponotatus (Richardson) and the brown-stripe snapper, L. vitta (Quoy and Gaimard) from Central Great Barrier Reef, Australia. Fish. Res., 48(2000):263-275.
  • Newman, S.; Williams, D. McB. & Russ G. 1996. Age validation, growth and mortality rates of the tropical snappers (Pisces: Lutjanidae) Lutjanus adetii (Castelnau, 1873) and L. quiquelineatus (Bloch 1790) from the Central Great Barrier Reef, Australia. Mar. Freshwat. Res., 47:575-584.
  • Parma, A. M. & Deriso, R. B. 1990. Dynamics of age and size composition in a population subject to size-seletive mortality: effects of phenotypic variability in growth. Can. J. Fish. aquat. Sci., 47:274-289.
  • Patterson III, W. F.; Cowan Jr., J. H.; Wilson C. A. & Shipp, R. L. 2001. Age and growth of red snapper, Lutjanus campechanus, from an artificial reef area off Alabama in the northern Gulf of Mexico. Fish. Bull., 99:617-627.
  • Pozo, E. & Espinoza L. 1982. Estudio de la edad y crescimiento del pargo alto (Lutjanus vivanus) na plataforma suroriental de Cuba. Rev. Cub. Invst. Pesq., 7(2):1-23.
  • Ralston, S. & Williams H. A. 1988. Numerical integration of daily growth increments: An efficient means of aging tropical fishes for stock assessement. Fish. Bull. U.S., 87:1-16.
  • Ricker, W. E. 1975. Computation and interpretation of biological statistics of fish populations. Bull. Fish. Res. Bd. Can., 191-382.
  • Rijnsdorp, A. D. & van Leween P. I., VISSER. 1990. On the validity and precision of back-calculation of growth from otoliths of the plaice, Pleuronectes platessa L. Fish Res., 9(1990):97-117.
  • Rocha-Olivares, A. 1998. Age, growth, mortality, and population characteristics of the pacific red snapper, Lutjanus peru, off the southeast coast of Baja California, Mexico. Fish. Bull., 96:562-574.
  • Rocha-Olivares, A. & Gómez-Muñoz, V. M. 1993. Validacion del uso de otolitos para determinar la edad del huachinango del pacifico Lutjanus peru (Perciforme:Lutjanidae), en la bahia de La Paz y aguas adjacentes, B. C. S., Mexico. Ciênc. Mar., 19(3):321-331.
  • Sadovy, Y. J.; Figuerola, M. & Román, A. 1992. Age and growth of red hind Epinephelus guttatus in Puerto Rico and St. Thomas. Fish. Bull., 90:516-528.
  • Sainsbury, K. J. 1980. Effect of individual variability on the von Bertalanffy growth equation. Can. J. Fish. aquat. Sci., 37:241-247.
  • Silva, O. C. 1970. Estudos das pescarias dos botes à vela da praia do Pina (Recife, Brasil). Trab. Oceangr. UFPE, 9111:305- 316.
  • Smale, M. A. & Taylor W. W.1987. Sources of back-calculation error in estimating growth of lake witefish. In: Summerfelt, R. C. & Hall G. E. eds. Age and growth of fish. Ames, Iwoa State University Press. 189-202.
  • Smedstad, O. M. & Holm, J. C.1996. Validation of back-calculation formulae for cod otoliths. J. Fish. Biol., 49:973-985.
  • Smith, M. K. 1992. Regional diferences in otolith morphology of the deep slope red snapper Etelis carbunculus Can. J. Fish. aquat. Sci., 49:795-804.
  • Valle, S. V.; Garcia-Artega J. P. & Claro R. 1997. Growth parameters of marine fishes in Cuban waters. Naga ICLARM Q., 20(1):34-37.
  • von BERTALANFFY, L. 1938. A quantitative theory of organic growth (Inquirities of growth law II). Human Biol., 10(2):181-213.
  • ZAR, J. H. 1984. Biostatistical analisys. 2nd version. New Jersey, Prentice Hall International, Inc. 718p.

Publication Dates

  • Publication in this collection
    26 Jan 2009
  • Date of issue
    June 2004

History

  • Reviewed
    22 Oct 2003
  • Received
    05 June 2003
  • Accepted
    27 Apr 2004
Universidade de São Paulo, Instituto Oceanográfico Praça do Oceanográfico, 191 , 05508-120 Cidade Universitária, São Paulo - SP - Brasil, Tel.: (55 11) 3091-6501, Fax: (55 11) 3032-3092 - São Paulo - SP - Brazil
E-mail: io@usp.br