Produtividade primária, biomassa e fatores limitantes na área estuarina SW da Baía de Todos os Santos

Paredes, Jorge Falcão; Peixinho, Vera Maria Carvalho; Brito, Ronan Rebouças Caires de

doi:10.1590/S0373-55241980000200057

Resumo

The primary production by C14, standing crop as ratio of particulate carbon/nitrogen and biossay tests concerning to dissolved nitrogen and phosphorus were investigated in the SW estuahne mangrove area of the Bay of Todos os Santos (Brazil) during 10 months. The phytoplankton displaied in this area a mean density of 9x10(5) cells/liter. The primary productivity showed an average range of 9.52 to 10.93 mgC/m³/h, representing the rate about 45 g C/m³ /year or 181 g C/m² /year. Phytoplankton fraction under 35µ at the stations 0 and 1 was responsible for the most C14 uptake. A negative relationship between primary production and limiting nitrogen and phosphorus was verified. February samples exhibited the most drastic situation regarding to N and P, as limiting factors; an opposite situation corresponded Jo June and July. The relationship between particulated carbon and nitrogen showed a concentration area among the ranges of400/1400 mgC/m³/ and 4/28 mgN/m³, The ratios C/N revealed the most of times a short variation.

ARTIGOS

Produtividade primária, biomassa e fatores limitantes na área estuarina SW da Baía de Todos os Santos^* * Trabalho subsidiado pela Financiadora de Estudos e Projetos (FINEP)

Jorge Falcão Paredes; Vera Maria Carvalho Peixinho; Ronan Rebouças Caires de Brito

Instituto de Biologia, Universidade Federal da Bahia, Salvador, BA, Brasil

SYNOPSIS

The primary production by C¹⁴, standing crop as ratio of particulate carbon/nitrogen and biossay tests concerning to dissolved nitrogen and phosphorus were investigated in the SW estuahne mangrove area of the Bay of Todos os Santos (Brazil) during 10 months. The phytoplankton displaied in this area a mean density of 9x10⁵ cells/liter. The primary productivity showed an average range of 9.52 to 10.93 mgC/m³/h, representing the rate about 45 g C/m³ /year or 181 g C/m² /year. Phytoplankton fraction under 35µ at the stations 0 and 1 was responsible for the most C¹⁴ uptake. A negative relationship between primary production and limiting nitrogen and phosphorus was verified. February samples exhibited the most drastic situation regarding to N and P, as limiting factors; an opposite situation corresponded Jo June and July. The relationship between particulated carbon and nitrogen showed a concentration area among the ranges of400/1400 mg^C/m³/ and 4/28 mg^N/m³, The ratios C/N revealed the most of times a short variation.

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Agradecimentos

Os autores desejam expressar seus agradecimentos aos Biólogos Welton Luis da Costa Rocha, Maria do Carmo Soares e Eliana Simas, pela sua valiosa colaboração no trabalho de campo e de laboratório e na confecção de gráficos.

Bibliografia

HALL, A. et al. 1977. The Zambezi River in Moçambique: the physico-chemical status of the Middle and Lower Zambezi prior to the closure of the Cabora Bassa Dam. Freshw. Biol., 7:187-206.
FINENKO, Z. Z. & ZAIKA, V. E. 1973. Particulate organic matter and its role in the productivity of the sea. In: Steele, J. H., ed. Marine food chains. Edinburgh, Oliver & Boyd, v.2, 32-44.
FOGG, G. E. 1975. Primary productivity. In: Riley, J.P. & Skirrow, G., eds. Chemical oceanography. 2 ed. London, Academic Press, v.2, p.385-453.
LORENZEN, C. J. 1967. Determination of chlorophyll and pheo-pigments: spectro-photometric equations. Limnol. Oceanogr., 12:343-346.
MARGALEF, R. 1967; The food web in the pelagic environment. Helgolander wiss. Meeresunters., 15:548-559.
ODUM, E. P. 1971. Fundamentals of ecology. 3 ed. Philadelphia, Saunders, 574p.
ODUM, H. T. & ODUM, E. P. 1955. Trophic structure and productivity of a windward coral reef community on Eniwetok Atoll. Ecol. Monogr., 25:291-320.
PARSONS, T. R. 1975. Particulate organic carbon in the sea. In: Riley, J. P. & Skirrow, G., eds. Chemical oceanography. 2 ed. London, Academic Press, v.2, p.365-383.
PEIXINHO, V. M. C. 1972. Estudos preliminares sobre o fitoplâncton da Baía de Aratu. Dissertação de mestrado. Universidade de São Paulo, Instituto de Biociências.
PEIXINHO, V. M. C; PAREDES, J. F. & SIMAS, E. M. P. Standing crop na area estuanna SW da Baia de Todos os Santos. Boln Inst, oceanogr., S Paulo (no prelo).
PERKINS, E. J. 1974. The biology of estuaries and coastal waters. London, Academic Press, 678p.
PRICE, C. A 1965. A membrane method for determination of total protein in dilute algal suspensions. Analyt. Biochem., 12:213-218.
REYSSAC, L. 1975. Evolution quantitative du phytoplancton de la Baie du Lévrier de septembre à novembre 1973. BulL Mus. natn. Hist, nat, Paris, 3Ş sér., (328), Ecol. genérale, 26:69-79.
SANTOS, J. J. 1973. Estudo preliminar, principalmente do plancton, das águas da Baía de Todos os Santos. Bolm Zool. Biol. mar., n.s., S Paulo, 30:419-447.
STEEMANN-NIELSEN, E. 1975. Marine photosyntesis with special emphasis on the ecological aspects. Elsevier Oceanogr. Ser. Amsterdam, Elsevier, 141p.
STRICKLAND, J. D. H. & PARSONS, T. R. 1972. A practical handbook of seawater analysis. 2 ed. Bull. Fish. Res. Bd Can. 167:1-311.
TEIXEIRA, C. 1973. Preliminary studies of primary production in the Ubatuba region (Lat. 23ş 30'S - Long. 45ş 06'W). Brazil. Bolm Inst, oceanogr., S Paulo, 22:49-58.
TEIXEIRA, C. & TUNDISI, J. 1967 Primary production and phytoplankton in Equatorial waters. Bull. mar. Sci. 17(4):884-891.
TEIXEIRA, C; TUNDISI, J. & SANTORO-Y. J. 1969. Plankton studies in a mangrove environment VI. Primary production, Zooplankton standing-stock and some environmental factors. Int. Revue ges. Hydrobiologie, 54(2):289-297.
TUNDISI, J. 1970. O plancton estuanno. Contrcöes Inst, oceanogr. Univ. S Paulo, sér. Ocean, biol. 19:1-22.
TUNDISI, J. G. 1971. Size distribution of the phytoplankton and its ecological significance in tropical waters. In: Costlow Jr., J. D., ed. Fertility of the sea. New York, Gordon & Breach, vol.2, p,603-612.
ZIMMERMANN, C. 1916. Flora diatomológica do plankton superficial da bahia da cidade do Salvador. An. 5ş Congr. bras. Geogr., 1:448-461.

*

Trabalho subsidiado pela Financiadora de Estudos e Projetos (FINEP)

Datas de Publicação

Publicação nesta coleção
06 Jun 2012
Data do Fascículo
1980

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] HALL, A. et al. 1977. The Zambezi River in Moçambique: the physico-chemical status of the Middle and Lower Zambezi prior to the closure of the Cabora Bassa Dam. Freshw. Biol., 7:187-206.

[2] FINENKO, Z. Z. & ZAIKA, V. E. 1973. Particulate organic matter and its role in the productivity of the sea. In: Steele, J. H., ed. Marine food chains. Edinburgh, Oliver & Boyd, v.2, 32-44.

[3] FOGG, G. E. 1975. Primary productivity. In: Riley, J.P. & Skirrow, G., eds. Chemical oceanography. 2 ed. London, Academic Press, v.2, p.385-453.

[4] LORENZEN, C. J. 1967. Determination of chlorophyll and pheo-pigments: spectro-photometric equations. Limnol. Oceanogr., 12:343-346.

[5] MARGALEF, R. 1967; The food web in the pelagic environment. Helgolander wiss. Meeresunters., 15:548-559.

[6] ODUM, E. P. 1971. Fundamentals of ecology. 3 ed. Philadelphia, Saunders, 574p.

[7] ODUM, H. T. & ODUM, E. P. 1955. Trophic structure and productivity of a windward coral reef community on Eniwetok Atoll. Ecol. Monogr., 25:291-320.

[8] PARSONS, T. R. 1975. Particulate organic carbon in the sea. In: Riley, J. P. & Skirrow, G., eds. Chemical oceanography. 2 ed. London, Academic Press, v.2, p.365-383.

[9] PEIXINHO, V. M. C. 1972. Estudos preliminares sobre o fitoplâncton da Baía de Aratu. Dissertação de mestrado. Universidade de São Paulo, Instituto de Biociências.

[10] PEIXINHO, V. M. C; PAREDES, J. F. & SIMAS, E. M. P. Standing crop na area estuanna SW da Baia de Todos os Santos. Boln Inst, oceanogr., S Paulo (no prelo).

[11] PERKINS, E. J. 1974. The biology of estuaries and coastal waters. London, Academic Press, 678p.

[12] PRICE, C. A 1965. A membrane method for determination of total protein in dilute algal suspensions. Analyt. Biochem., 12:213-218.

[13] REYSSAC, L. 1975. Evolution quantitative du phytoplancton de la Baie du Lévrier de septembre à novembre 1973. BulL Mus. natn. Hist, nat, Paris, 3Ş sér., (328), Ecol. genérale, 26:69-79.

[14] SANTOS, J. J. 1973. Estudo preliminar, principalmente do plancton, das águas da Baía de Todos os Santos. Bolm Zool. Biol. mar., n.s., S Paulo, 30:419-447.

[15] STEEMANN-NIELSEN, E. 1975. Marine photosyntesis with special emphasis on the ecological aspects. Elsevier Oceanogr. Ser. Amsterdam, Elsevier, 141p.

[16] STRICKLAND, J. D. H. & PARSONS, T. R. 1972. A practical handbook of seawater analysis. 2 ed. Bull. Fish. Res. Bd Can. 167:1-311.

[17] TEIXEIRA, C. 1973. Preliminary studies of primary production in the Ubatuba region (Lat. 23ş 30'S - Long. 45ş 06'W). Brazil. Bolm Inst, oceanogr., S Paulo, 22:49-58.

[18] TEIXEIRA, C. & TUNDISI, J. 1967 Primary production and phytoplankton in Equatorial waters. Bull. mar. Sci. 17(4):884-891.

[19] TEIXEIRA, C; TUNDISI, J. & SANTORO-Y. J. 1969. Plankton studies in a mangrove environment VI. Primary production, Zooplankton standing-stock and some environmental factors. Int. Revue ges. Hydrobiologie, 54(2):289-297.

[20] TUNDISI, J. 1970. O plancton estuanno. Contrcöes Inst, oceanogr. Univ. S Paulo, sér. Ocean, biol. 19:1-22.

[21] TUNDISI, J. G. 1971. Size distribution of the phytoplankton and its ecological significance in tropical waters. In: Costlow Jr., J. D., ed. Fertility of the sea. New York, Gordon & Breach, vol.2, p,603-612.

[22] ZIMMERMANN, C. 1916. Flora diatomológica do plankton superficial da bahia da cidade do Salvador. An. 5ş Congr. bras. Geogr., 1:448-461.