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Volume 8, Issue 2 - December 2008

 

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Revista de Gestão Costeira Integrada
Volume 8, Número 2, Dezembro 2008, Páginas 183-201

DOI: 10.5894/rgci148
* Submissão – 14 Setembro 2008; Avaliação – 27 Outubro 2008; Recepção da versão revista – 9 Novembro; Disponibilização on-line: 23 Dezembro 2008

Cultivo de Millepora alcicornis como uma ferramenta para Restauração e Manejo dos Ecossistemas Recifais do Nordeste do Brasil *

Culture of Millepora alcicornis as a tool for restoration and management of reefal ecosystems of Northeast Brazil

Marília D. M. Oliveira 1, 2, Zelinda M. A. N. Leão 2, Ruy K.P. Kikuchi


1 - Autor correspondente: mariliad@ufba.br
2 - Universidade Federal da Bahia, Instituto de Geociências, Centro de Pesquisas em Geofísica e Geologia


RESUMO
Neste trabalho foi avaliado o potencial de cultivo do hidróide calcário Millepora alcicornis, importante construtor dos recifes no Brasil, como uma ferramenta para restaurar áreas recifais degradadas no Nordeste do Brasil. Os fragmentos de M. alcicornis foram produzidos a partir de cinco colônias coletadas na Baía de Todos os Santos, Salvador, Bahia. Esses fragmentos, medindo cerca de 10cm de altura, foram mantidos em condições de cultivo em sistema de aquário, sob o regime de luz 12 horas no claro/12 horas no escuro e ausência de suplemento alimentar durante 15 semanas. Os parâmetros físico-químicos foram controlados e mantidos em níveis adequados para o crescimento de organismos calcificadores com sistema de filtragem, trocas parciais de água do sistema, e adição de cálcio na água. Os fragmentos foram posicionados numa placa de vidro a 15 cm abaixo da superfície da água do aquário para receberam a mesma quantidade de luz. A extensão lateral (expansão) e o crescimento vertical (extensão vertical dos ramos) dos fragmentos foram avaliados semanalmente, através da comparação de fotografias digitais e as medidas de extensão lateral e do crescimento vertical foram quantificadas a cada cinco semanas. O peso (calcificação esquelética) de cada fragmento foi obtido uma vez por semana através da técnica do buoyant weight. O crescimento esquelético dos fragmentos foi comparado entre cada período de cinco semanas, através do teste de Kruskal-Wallis. Os resultados mostram que 100% dos fragmentos mantiveram-se fixados ao suporte durante as 15 semanas, sem qualquer sinal de estresse. Foi observado um aumento gradativo da extensão lateral em 60% dos fragmentos ao final de 15 semanas, quando 50% dos fragmentos atingiram o dobro dos valores de extensão lateral encontrada no final da quinta semana. Foi observado crescimento vertical de até 7mm em alguns dos ramos dos fragmentos ao final de 15 semanas. Não houve diferença significativa ao nível de 5% entre as médias de crescimento esquelético dos fragmentos a cada período de cinco semanas. Isto confirma que a quantidade de carbonato de cálcio incorporada no esqueleto de M. alcicornis que pode formar a estrutura rígida do recife não foi afetada pelas condições de cultivo dos fragmentos no sistema de aquários, principalmente considerando o confinamento e o posicionamento dos fragmentos em relação à iluminação, bem como a disposição dos fragmentos na placa de vidro. Os fragmentos de M. alcicornis a partir de 7g podem ser cultivados com um fotoperíodo de 12 horas por dia. O tempo de utilização de lâmpadas tipo HQI pode ser reduzido e não é preciso adicionar suplemento alimentar ao sistema, o que reduz os gastos com a energia e com a alimentação. Os fragmentos de Millepora podem ser cultivados sem que haja sinal de estresse. Isto indica que existe grande probabilidade de sucesso ao serem reintroduzidos no ecossistema. A fragmentação ou coleta de fragmentos, cultivo dos fragmentos e reintrodução de Millepora é, portanto, uma poderosa ferramenta de manejo e restauração de áreas recifais degradadas na costa Nordeste do Brasil, mas não prescinde de ações que reduzam as causas da degradação ambiental.

Palavras chave: recifes de corais, restauração, Millepora alcicornis

ABSTRACT
This work evaluates the potential for cultivating the calcareous hidroid Millepora alcicornis, which is an important reef builder in Brazil, and its use as a tool to restore degraded reef areas in northeast Brazil. Fragments of M. alcicornis were produced from five colonies collected in Todos os Santos Bay, Salvador, Bahia. These fragments, measuring about 10cm in height, were maintained in an aquarium system in alternating 12 hours light/dark regime periods and in the absence of food supply during 15 weeks. The illumination system was composed of metal halide lamps (HQI) of 150w and color temperature of 10.000k, and two fluorescence tubes (white and blue ones). In aquarium A, fluorescence tubes were 40w and 20.000k and in aquarium B, 15w and 20.000k. The system was controlled by timers, which maintained the fluorescente lights on between 6:00 am and 6:00 pm, and HQI lamps on from 9:00 am to 3:00 pm. Physical-chemical parameters were controlled and maintained at levels appropriate to calcifying organisms with a filtering system, partial water change and addition of calcium to the water. The fragments were put on a glass plate 15cm under water level to receive equal amounts of light. Lateral extension (expansion) and vertical growth (vertical extension of the branches) of the fragments were evaluated weekly, through the comparison of digital photographs and the measurement of lateral extension and vertical growth were quantified every five weeks. The weight (skeletal calcification) of each fragment was obtained once a week using the buoyant weight technique. Skeletal calcification growth values were obtained every five weeks as well. This five weeks growth was calculated as the difference of value obtained in the fifth and first weeks (AC5), the difference of value obtained in the tenth and fifth weeks (AC10) and the difference of value obtained in the fifteenth and tenth weeks (AC15). Each five weeks skeletal growth of the fragments was compared with Kruskal-Wallis test. The results show all fragments remained fixed to the support during the sampling period, without signs of stress. A gradual lateral extension in 60% of the fragments was observed after the fifteen weeks, when 50% of the fragments had doubled the lateral extension measured in the fifth week. A vertical growth of up to 7mm was observed in some branches at the end of the study. There was no significant difference in the skeletal growth of the fragments at each five week period. This confirms that the amount of calcium carbonate incorporated in the skeleton of Millepora alcicornis that can build the reef framework was not affected by the culture conditions of the fragments in the aquarium system, considering the confinement and the position of the fragments relative to light and their disposal on the glass plate. Fragments of M. alcicornis heavier than 7 grams can be cultivated with a photoperiod of 12 hours a day. The time use of HQI lamps may be reduced and it is not necessary to supply food to the system, what reduces costs of energy and food. Fragments of Millepora can be cultured without signs of stress. This indicates a great probability of success if they were reintroduced in the ecosystem. The success of a restoration program with Millepora alcicornis will depend on the stabilization of good conditions of water properties. However its branching form prevents accumulation of sediment on it surface and as they live in shallow and high energy environments, turbidity and sedimentation would not be a limiting factor if the restoration program is developed in such places. Using fragmentation or the collection fragments of Millepora, and their culture and reintroduction is a powerful tool to management and restoration of degraded reefal areas in Northeast Brazil, and in this aspect, the survival potential of different sizes of their fragments must also be tested. Furthermore, the success of restoration programs demand measures that reduce the causes of environmental degradation.

Keywords: coral reefs, restoration, Millepora alcicornis


 

Abramovitch-Gottlib L., Katoshevski, D. & Vago, R. (2002) - A computerized tank system for studying the effect of temperature on calcification of reef organisms. Journal of Biochemical and Biophysical Methods, 50(2-3):245-252. (doi: 10.1016/S0165-022X(01)00236-6).

Atkinson, M.J., Calson, B. & Crow G.L. (1995) - Coral growth in high-nutrient, low-pH seawater: A case study of corals cultured at the Aquarium, Honolulu, Hawaii. Coral Reefs, 14 (4): 215-223.
(doi: 10.1007/BF00334344).

Adey, W.H. & Loveland, K. (1998) - Dynamic Aquaria: Building Living Ecosystems. 2ª ed., 498 p., Academic Press, San Diego, SC, USA. (ISBN-13: 978-0120437924).

Barcelar, A.J.F. (1997) - Aquários Marinhos e de Recifes de Coral. 175 p., Editora Nobel, São Paulo, SP, Brasil. (ISBN: 8521309244).
Barnes, D.J. & Crossland, C.J. (1980) - Diurnal and seasonal variations in the growth of staghorn coral measured by time-lapse photography. Limnology and Oceanography, 25(6):1113-1117. (disponível em http://www.aslo.org/lo/toc/vol_25/issue_6/1113.pdf).

Belém, M.J.C., Rohlfs, C., Pires, D.O., Castro, C.B. & Young, P.S. (1986) - S.O.S. Corais. Ciência Hoje, 5:35-42. Sociedade Brasileira para o Progresso da Ciência, Rio de Janeiro, RJ, Brasil.

Becker L.C. & Mueller E. (2001) - The culture, transplantation and storage of Montastrea faveolata, Acropora cervicornis and Acropora palmata: What we learned so far. Bull. Mar. Sci., 69 (2): 881-886. (disponível em http://www.ingentaconnect.com/content/umrsmas/
bullmar/2001/00000069/00000002/art00050
).

Birkeland, C., Randall, R.H. & Grim, G. (1979) - Three methods of coral transplantation for the purpose of re-establishing a coral community in the thermal effluent area of the Tanquisson Power Plant. Univ. of Guam., Technical Report 60, 24p., University of Guam Marine Laboratory, Guam.

Borneman, E.H. & Lowrie, J. (2001) - Advances in captive husbandry and propagation: an easily utilized reef replenishment means from the private sector? Bulletin of Marine Science, 69(2):897-913. (disponível em http://www.ingentaconnect.com/content/umrsmas/bullmar/
2001/00000069/00000002/art00051
).

Bowden-Kerby, A. (1997) - Coral transplantation in sheltered habitats using unattached fragments and cultured colonies. In: Lessios H.A. & Macintyre, I.G. (eds.) Proceedings of the 8th International Coral Reef Symposium, Vol. 2, p. 2063-2068, University of Panama / Smithsonian Tropical Research Institute, Panama City, Panama.

Carricart-Ganivet, J.P. (2004) - Sea surface temperature and the growth of the West Atlantic reef-building coral Montastrea annularis. Journal of Experimental Marine Biology and Ecology, 302(2):249-260. (doi:10.1016/j.jembe.2003.10.015).

Castro, C.B.; Pires, D.O.; Segal, B.; Maida, M.; Ferreira, B.P. Rostan, G.; Negrão, F.& Lins-de-Barros, M.M. (2006) - Projeto Coral Vivo. In: Ferreira, B.P. e Maida, M. (eds.), Monitoramento dos Recifes de Coral do Brasil – Situação atual e perspectivas, pp. 80-81, MMA, Brasília, DF, Brasil.

Clark, J. R. (1996) - Coastal zone management handbook. 694 p., Lewis Publishers, Boca Raton, FL, USA. (ISBN: 1566700922).

Clark, S. & Edwards A.J. (1995) - Coral transplantation as an aid to reef rehabilitation: evaluation of a case study in the Maldives Islands. Coral Reefs, 14(4):201-213. (doi: 10.1007/s003380050017).

Cesar, H.S.J. (ed.) (2000) - Collected essays on the economics of coral reefs. 243p., CORDIO Publ., Kalmar University, Kalmar, Sweden. (ISBN-13: 978-9197395908).

Cook, C.B., Dodge, R.E. & Smith, S.R. (1994) - Fifty years of impacts on coral reefs in Bermuda. In: Ginsburg, R.N. (Compiler), Proceedings of the Colloquium on Global Aspects of Coral Reefs : health, hazards and history, p.160-166, University of Miami, Miami, Fl, USA. (ISBN: 0932981798).

Delbeek, J. C. & Sprung, J. (1994) - The Reef Aquarium: A Comprehensive Guide to the Identification and Care of Tropical Marine Invertebrates. 544p., Ricordea Publishing, Miami, FL, USA. (ISBN-13: 978-1883693121).

Edwards, A.J. & Clark, S. (1998) - Coral transplantation: A useful management tool or misguided meddling? Marine Pollution Bulletin, 37(8-12): 474-487. (doi: 10.1016/S0025-326X(99)00145-9).

Falkowski, P.G., Jokiel, P.L. & Kinzie III, R.A. (1990) - Irradiance and corals. In: Dubinsky, Z. & Goodall, D.W. (eds.), Ecosystems of World: Coral Reefs, pp.89-107, Elsevier Science. (ISBN-13: 978-0444873927).

Franklin, H., Muhando, C. A. & Lindahl, U. (1998) - Coral culturing and temporal recruitment patterns in Zanzibar, Tanzania. Ambio, 27(8):651-655.

Ferreira, B.P. & Maida, M. (eds.) (2004) - Monitoramento dos Recifes de Coral do Brasil – Situação atual e perspectivas, 116p., MMA – Ministério do Meio Ambiente, Brasília, DF, Brasil. (ISBN: 8587166867) (disponível em http://www.recifescosteiros.org.br/reefcheck/download.php).

Ferrier-Pagès, C., Gattuso, J.P., Dallot, S. & Jaubert J. (2000) - Effect of nutrient enrichment on growth and photosynthesis of the zooxanthellate coral Stylophora pistillata. Coral Reefs, 19(2):103-113. (doi: 10.1007/s003380000078).

Furla, P., Galgani, I., Durand, I. & Allemand D. (2000) - Sources and mechanisms of inorganic carbon transport for coral calcification and photosynthesis. Journal of Experimental Biology, 203(22):3445-3457. (http://jeb.biologists.org/cgi/reprint/203/22/3369).

Garzón- Ferreira, J., Cortés, J., Croquer, A., Guzmán, H., Leão, Z., & Rodríguez-Ramírez A. (2000) - Status of coral reefs in Southern Tropical America: Brazil, Colombia, Costa Rica, Panama and Venezuela. In: Wilkinson, C. (ed.), Status of Coral Reefs of the World: 2000, p.331-348, Australian Institute of Marine Science, Townsville, Australia. ( (ISSN 1447-6185). (disponível em http://www.gcrmn.org/status2000.aspx).

Gattuso, J.P., Allemand, D. & Frankignoulle M. (1999) - Photosynthesis and calcification at cellular, organismal and community levels in coral reefs: A review on interactions and control by carbonate chemistry. American Zoologist, 39:160-183.

Glynn, P. W. (1988). El Niño-Southern Oscillation 1982-1983: Nearshore population, community and ecosystem responses. Annual Review of Ecology and Systematics, 19: 309-345.

Gomes S. (1997) - O Aquário Marinho e as Rochas Vivas. 2ª edição, 255p., Tropicus Publicidade e Propaganda Ltda, Rio de Janeiro, RJ, Brasil.

Grigg, R.W. & Dollar, S.J. (1990) - Natural and anthopogenic disturbance on coral reefs. In: Z. Dubinky (ed.) Ecosystems of Wold Coral Reefs. pp. 439-452, Elsevier, Amsterdam, Oxford, New York, Tokyo. (ISBN 0-444-87392-9).

Guzmán, H.M. (1991) - Restoration of Coral Reefs in Pacific Costal Rica. Conservation Biology, 5(2): 189-195. (doi: 10.1111/j.1523-1739.1991.tb00123.)

Harriot, V.J. & Fisk, D.A. (1988) - Coral transplantation as a reef management option. In: Choat, J.H., Barnes, D., Borowitzka, M.A., Coll, J.C., Davies, P.J., Flood, P., Hatcher, B.G., Hopley, D., Hutchings, P.A., Kinsey, D., Orme, G.R., Pichon, M., Sale, P.F., Sammarco, P., Wallace, C.C., Wilkinson, C., Wolanski E. & Bellwood, O. (eds.) Proceedings of the 6th International Coral Reef Symposium, 2:375-379, Townsville, Australia. (ISBN-13: 978-0731656066)

Heeger, T. & Sotto, F. (2000) - Coral Farming: A Tool for Reef Rehabilitation and Community Ecotourism. 94p., German Ministy of Environment, German Technical Cooperation and the Tropical Ecology Program (GTZ- TÖB), Philippines.

Heeger, T., Cashman, M. & Sotto, F. (1999) - Coral farming as alternative livelihood, sustainable natural resource management and coral reef rehabilitation. In: Proceedings Oceanology International 1999 Pacific rim conference, p. 171-185, Singapura.

Hoegh-Guldberg, O. (1999) - Climate change, coral bleaching and the future of the world’s coral reefs. Marine and Freshwater Research, 50(8):839-866. (doi:10.1071/MF99078).

Hughes, T.P. (1994) - Coral reef degradation: a long-term study of human and natural impacts. In: Ginsburg, R.N. (Compiler), Proceedings of the Colloquium on Global Aspects of Coral Reefs : health, hazards and history, p.208-213, University of Miami, Miami, Fl, USA. (ISBN: 0932981798).

Jokiel, P.J., Maragos, J. E. & Franzisket L. (1978) - Coral growth: buoyant weight technique. In: Stoddart, D.R. & Johannes, R.E. (eds.), Coral Reefs: Research Methods, p. 529-535, UNESCO, Monographs on oceanographic Methodology, Paris, France.

Kaly, U.L. (1995) - Experimental test of the effects of methods of attachment(and handling on the rapid transplantation of corals.(†CRC Reef Research Centre Technical Report No. 1,(†28 p., CRC Reef Research Centre Ltd, Townsville, Austrália. (ISBN: 0642227675).

Kikuchi, R.K.P. (2000) - Evolução dos recifes e das comunidades de corais hermatípicos da plataforma continetal norte do estado da Bahia durante o Holoceno. Dissertação de Doutorado, 152p., Universidade Federal da Bahia, Instituto de Geociências, Salvador, BA, Brasil.

Kinzie III, R.A. & Buddermeier, R.W. (1996) - Reefs happen. Global Change Biology, 2(6):479-494. (doi: 10.1111/j.1365-2486.1996.tb00062.x)

Leão, Z.M.A.N. & Kikuchi, R.K.P. (2000) - The Abrolhos reefs of Brazil. In: Seeliger, U. & Kjerfve, B. (eds.) Coastal Marine Ecosystems of Latin America, pp. 83-96, Springer-Verlag, Ecological Studies 144, Berlin Heidelberg New York. (ISBN-13: 978-3540672289).

Leão, Z.M.A.N., Kikuchi, R.K.P., Maia, M.P. & Lago, R.A.L. (1997) - A catastrophic coral cover decline since 3000 years B.P., Northern Bahia, Brazil. In: Lessios H.A. & Macintyre, I.G. (eds.) Proceedings of the 8th International Coral Reef Symposium, Vol. 2:583-588, University of Panama / Smithsonian Tropical Research Institute, Panama City, Panama.

Lesser, M.P. (2004) - Experimental biology of coral reef ecosystems. Journal of Experimental Marine Biology and Ecology, 300(Special Issue):217-252. (doi: 10.1016/j.jembe.2003.12.027).

Lindahl, U. (1998) - Low-tech rehabilitation of degraded coral reefs through transplantation of staghorn corals. Ambio, 27(8):645-650.

Lough, J.M. & Barnes, D.J. (1992) - Comparisons of skeletal density variations in Porites from the central Great Barrier Reef. Journal of Experimental Marine Biology and Ecology, 155(1):1-25. (doi:10.1016/0022-0981(92)90024-5 )

Lough, J.M. & Barnes, D.J. (1997) - Several centuries of variations in skeletal extension, density and calcification in massive Porites colonies from the Great Barrier Reef: A proxy for seawater temperature and a background of natural variability against which to identify unnatural change. Journal of Experimental Marine Biology and Ecology, 211(1):29-67. (doi: 10.1016/S0022-0981(96)02710-4)

Maida, M.& Ferreira, B.P. (2004) - Os recifes de Coral Brasileiros. In: ESKINAZI-LEÇA, E., Newman S. & Costa M., Oceanografia: um cenário tropical. p.617-240, Editora Bargaço, Recife, PE, Brasil. (ISBN: 8574095826)

Marubini, F.& Thake, B. (1999) - Bicarbonato addition promotes coral growth. Limnology and Oceanography, 44(3):716-720. (disponível em http://www.aslo.org/lo/toc/vol_44/issue_3/0716.pdf)

Maÿal, E. (1986) - Mercado de Corais. S.O.S. corais. Ciência Hoje. 5:43. Sociedade Brasileira para o Progresso da Ciência, Rio de Janeiro, RJ, Brasil.

Muller-Parker, G. & D’Elia, C.F. (1997) - Interactions between corals and their symbiotic algae. In: Birkeland, C. (ed.), Life and death of coral reefs, pp:93-103, Chapman & Hall, London, UK. (ISBN: 0412035413)

Nolasco M.C. (1988) - Construções carbonáticas da costa norte do Estado da Bahia (Salvador a Subaúma). Dissertação de Mestrado, 143p., Instituto de Geociências, Universidade Federal da Bahia, Salvador, BA, Brasil.

Oliveira, M.D.M. (2002) - Avaliação do efeito da luz na calcificação do esqueleto do hidróide calcário Millepora alcicornis Linnaeus, 1758, em experimentos in vitro. Dissertação de Mestrado, 93p., Instituto de Geociências, Universidade Federal da Bahia, Salvador, BA, Brasil.

Oren, U., & Benayahu, Y. (1997) - Transplantation of juvenile corals: a new approach for enhancing colonization of artificial reefs. Marine Biology, 127(3):499-505. (doi: 10.1007/s002270050038).

Pitombo, F., Ratto, C.C. & Belém M.J.C., (1988) - Species diversity and zonation patter of hermatypic corals at two fringing reefs Abrolhos archipelago, Brazil. Proc. of the 6th International Sym, 2: 817-820, Townsville, Austrália.

Pratt, J.R. (1994) - Artificial habitats and ecosystem restoration: Managing for the future. Bulletin of Marine Science., 55(2-3): 268-275.
Precht, W.F. (1998) - The Art and Science of Reef Restoration. Geotimes, 43:16-20.

Rinkevich, B. (2000) - Steps towards the avaluation of coral reef restoration by using small brank fragments. Marine Biology, 136(5): 807-812. (doi: 10.1007/s002270000293).

Reynaud-Vaganay, S., Juillet-Leclerc, A., Jaubert, J., & Gattuso, J.P. (2001) - Effect of light on skeletal delta 13C and delta 18O, and interaction with photosynthesis, respiration and calcification in two zooxanthellate scleractinian corals. Palaeogeography Palaeoclimatology Palaeoecology, 175(1-4):393-404. (doi: 10.1016/S0031-0182(01)00382-0).

Rinkevich, B. (2000) - Steps towards the evaluation of coral reef restoration by using small branch fragments. Marine Biology, 136(5):807-812. (doi: 10.1007/s002270000293).

Rooker, J.R., Dooker, Q.R., Pattengill, C.V. & Holth, G.J. (1997) - Fish assemblages on artificial and natural reefs in the Flower Garden Banks National Marine Santuary, U.S.A. Coral Reefs, 16(2):83-92. (doi: 10.1007/s003380050062).

Scoffin, T.P., Tudhope, A.W., Brown, B.E., Chansang, H. & Cheeney, R.F. (1992) - Patterns and possible environmental controls of skeletogenesis of Porites lutea, South Thailand. Coral Reefs, 11(1):l-l 1. (doi: 10.1007/BF00291929).

Smith, S.V. & Buddermeier R.W. (1992) - Global change and coral reef ecosystems. Annual Review of Ecological Systems, 23:89-118.

Spurgeon, J.P.G. (2000) - Economics of coral reef restoration. In: Cesar, H.S.J. (ed.), Collected essays on the Economics of Coral Reefs. p. 125-136, CORDIO Publ., Kalmar University, Kalmar, Sweden. (ISBN-13: 978-9197395908).

Treeck, P.V. & Schuhmacher, H. (1997) - Initial survival of coral nubbins transplanted by a new coral transplantation technology - Options for reef rehabilitation. Marine Ecology-Progress Series, 150:287-292. (disponível em http://www.int-res.com/articles/meps/150/
m150p287.pdf
)

Quayle, R.G., Elms J.D., Fulbright, D.C., Chen, A.W.Y., Hawkins, J.S., Manns, D.J. & Pellett, J.L. (1978) - US Navy Marine Climatic Atlas of the World, Volume IV – South Atlantic Ocean, 325 p., Naval Weather Service, Washington, DC, USA. (ISBN: B001D7EJS8).

Vago, R., Dubinsky, Z. ,Genin, A., Ben-Zion, M. & Kizner, Z. (1997) - Growth rates of three corals in the Red Sea. Limnology and Oceanography, 42(8):1814-1819. (disponível em http://www.aslo.org/
lo/toc/vol_42/issue_8/1814.pdf
).

Wilkinson, C. (ed.) (2000) - Status of Coral Reefs of the World: 2000, 363 p., Global Coral Reef Monitoring Network Report, Australian Institute of Marine Science, Townsville, Austrália. ((ISSN 1447-6185). (disponível em http://www.gcrmn.org/status2000.aspx).

Wilkinson, C. (ed.) (2002) - Status of Coral Reefs of the World: 2002, Global Coral Reef Monitoring Network Report, Australian Institute of Marine Science, Townsville, Austrália. (ISSN: 1447-6185) (disponível em http://www.gcrmn.org/status2002.aspx).

Wilhemsson, D., Öhman M.C., Ståhl H. & Shlesinger Y. (1998) - Artificial reefs and dive tourism in Eilat, Israel, Ambio, 27(8):764-766.

Yap H.T., Alvarez R.M., Custodio H.M. & Dizon R.M. (1998) - Physiological and ecological aspects of coral transplantation. Journal of Experimental Marine Biology and Ecology, 229(1):69-84. (doi: 10.1016/S0022-0981(98)00041-0).

Yap, H.T., Montebon, A.R.F., von Oertzen, J.A. & Dizon, R.M. (1995) - Experimental manipulations of a solitary coral (Fungia, Scleractinia) with emphasis of the effects of light. Bulletin of Marine Science, 56(1):319-329, Lawrence, KA, USA.

Yates, R. & Carlson, B. (1992) - Corals in aquariums: How to use selective collecting and innovative husbandry to promote reef conservation. Proceedings of 7th International Coral Reef Symposium, 2:1091-1095, Guam.

Zar J.H. (1999) - Biostatistical analysis. 4a edição, 931p., Prentice Hall, Inc., New Jersey, NJ, USA. (ISBN:0-13-081542-X).

 

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