Interactions between hydrology and benthic coverage at Rocas Atoll
DOI :
https://doi.org/10.5914/tropocean.v44i2.8298Mots-clés :
macroalgae, coral reefs, dissolved inorganic nutrients, environment variables.Résumé
Abiotic parameters and benthic coverage were determined in shallow habitats at Rocas Atoll. It was found daily and seasonal variations on seawater characteristics related to tides, pluviometry, daily solar cycle, and organisms’ metabolism. Habitats with high coverage of carbonatic organisms were associated with the alkalinity of seawater, whereas habitats with elevated abundance of turf and macro algae were correlated to dissolved inorganic nutrients. Therefore, it is suggested that the availability of nutrients and
carbonates in seawater are important for the organism’s distribution in the atoll. Only seven corals settled on the plates during the experiment (Porites spp. and Siderastrea spp.). In order to better constrain the causes of the low coral recruitment in the atoll and predicted the effects of climate changes and ocean acidification over this important reef ecosystem, it is necessary to assess, in high resolution (i.e. week to monthly), the environmental variables that overlaps a short-term period.
Références
ALBRIGHT, R., et al. Reversal of ocean acidification enhances net coral reef calcification, Nature, 2016. doi:10.1038/nature17155
ALBRIGHT, R.; LANGDON, C. Ocean acidification impacts multiple early life history processes of the Caribbean coral Porites astreoides. Global Change Biology, 17, 2478–2487, 2011.
ANTHONY K. R. N.; KLEYPAS, J. AND GATTUSO, J-P. Coral reefs modify the carbon chemistry of their seawater – implications for the impacts of ocean acidification. Global Change Biology, 17, 3655–3666, 2011.
APAC- Agencia Pernambucana de Aguas e Clima. Precipitação da Ilha de Fernando de Noronha (2012–2014) http://www.apac.pe.gov.br. Accessed 15 Jun 2016
BAK, R. P. M.; ENGEL, M. S. Distribution, abundance and survival of juvenile hermatypic corals (Scleractinia) and the importance of life history strategies in the parent coral community. Mar. Biol., 54:341-352. 1979
CASTRO, C. B.; AMORIM, L.C.; CALDEIRON, E. N.; SEGAL, B. Cobertura e recrutamento de corais recifais (Cnidaria: Scleractinia e Milleporidae) nos recifes Itacolomis, Brasil. Arquivos do Museu Nacional, Rio de Janeiro, v.64, n.1, p.29-40, 2006.
DICKSON, A. G., SABINE, C. L. & CHRISTIAN, J. R. Guide to Best Practices for Ocean CO2 Measurements. North Pacific Marine Science Organization, 2007.
DUPONT, S.; ORTEGA-MARTINEZ, O.; THORNDYKE, M. Impact of near-future ocean acidification on echinoderms. Ecotoxicology, 19, 449–462. 2010.
FABRICIUS, K.E.; LANGDON, C.; UTHICKE, S. et al. Losers and winners in coral reefs acclimatized to elevated carbon dioxide concentrations. Nature Climate Change, 1, 1–5. 2011
FABRICIUS, K.E.; METZNER, J. Scleractinian walls of mouths: Predation on coral larvae by corals. Coral Reefs 23:245-248. 2004
FEITOSA, F. A. N.; PASSAVANTE, J. Z. O. Produtividade fitoplanctônica e hidrologia do Atol das Rocas (Brasil). In: CHELLAPPA, N. T.; CHELLAPA, S.; PASSAVANTE, J. Z. O. (Eds.) Ecologia aquática tropical. Natal: ServGraf, 2004, p.143-156.
FERREIRA BP, COSTA MBSF, COXEY MS, GASPAR ALB, VELEDA D, ARAUJO M. The effects of sea surface temperature anomalies on oceanic coral reef systems in the southwestern tropical Atlantic. Coral Reefs 32, 441–454. 2012. doi:10.1007/s00338-012-0992-y
FONSECA AC, VILLACA R, KNOPPERS B. Reef Flat Community Structure of Atol das Rocas, Northeast Brazil and Southwest Atlantic. Journal of Marine Biology 2012:1–10. 2012. http://dx.doi.org/10.1155/2012/179128
GHERARDI D. F. M.; BOSENCE, D. W. J. Composition and community structure of the coralline algal reefs from Atol das Rocas, South Atlantic, Brazil. Coral Reefs, v.19, p.205-219, 2001.
GHERARDI, D. F. M.; BOSENCE D. W. J. Modeling of the ecological succession of encrusting organisms in recent coralline-algal frameworks from Atol das Rocas, Brazil. Palaios, v.4, p.145-158, 1999.
GRASSHOFF, K.; EHRHARDT, M.; KREMLING, K. Methods of seawater analysis. 3rd edition. Weinheim: Verlag Chemie, 1983. 419p
HOEGH-GULDBERG, O.; MUMBY, P.J.; HOOTEN, A J.; STENECK, R.S.; GREENFIELD, P.; GOMEZ, E.; HARVELL, C.D.; SALE, P.F.; EDWARDS, A J.; CALDEIRA, K.; KNOWLTON, N.; EAKIN, C.M.; IGLESIAS-PRIETO, R.; MUTHIGA, N.; BRADBURY, R.H.; DUBI, A; HATZIOLOS, M.E. Coral reefs under rapid climate change and ocean acidification. Science 318, 1737–42. 2007. doi:10.1126/science.1152509
HOFLICH O. Climate of the South Atlantic Ocean. In: Van Loon H (Ed), Climates of the oceans. Elsevier, Amsterdam, p. 1-192. 1984.
IGLESIAS-RODRIGUEZ M. D., FABRICIUS K. E.; MCELHANY P., Ecological effects of ocean acidification. In Solan M. & Whiteley N. (Eds), Stressors in the marine environment, Oxford University Press, pp. 195-212. 2016.
JALES M. C. Influência das condições oceanográficas sobre a estrutura da comunidade fitoplanctônica no Atol das Rocas, Atlântico Sul Equatorial, Brasil. Tese (Doutorado) Universidade Federal de Pernambuco, CTG, PPGO. 97f. 2015
JALES M. C., FEITOSA, F. A. N., KOENING, M. L., FLORES MONTES, M. J., ARAÚJO FILHO, M. C; ARAÚJO, R. Phytoplankton biomass dynamics and environmental variables around the Rocas Atoll Biological Reserve, South Atlantic. Brazilian Journal of Oceanography, no prelo, 2015.
KIKUCHI, R. K. P.; LEÃO, Z. M. A. N. Rocas (Southwestern Equatorial Atlantic, Brazil): an atoll built primarily by coralline algae. In: 8th INTERNATIONAL CORAL REEF SYMPOSIUM, 1997, Panamá. Proceedings International Society for Reef Studies. Panamá, 1997, p.731-736.
KROEKER KJ, KORDAS RL, CRIM R, HENDRIKS IE, RAMAJO L, SINGH GS, DUARTE, CM, GATTUSO J-P. Impacts of ocean acidification on marine organisms: quantifying sensitivities and interaction with warming. Global Change Biology. 19, 1884–1896. 2013. doi:10.1111/gcb.12179
LONGO GO, MORAIS RA, MARTINS CDL, MENDES TC, AUED AW, CÂNDIDO DV, et al. 2015 Between-Habitat Variation of Benthic Cover, Reef Fish Assemblage and Feeding Pressure on the Benthos at the Only Atoll in South Atlantic: Rocas Atoll, NE Brazil. PLoS ONE 10(6): e0127176. doi:10.1371/journal.pone.0127176
MAIDA, M.; FERREIRA, B.P. Estudo preliminar sobre o assentamento de corais em um recife na baia de Tamandaré – PE. Boletim Técnico Científico do CEPENE, Tamandaré, 3(1):23-36. 1995
MELZNER, F.; STANGE, P.; TRUBENBACH, K. et al. Food supply and seawater pCO2 impact calcification and internal shell dissolution in the blue mussel Mytilus edulis. PLoS ONE, 6, e24223. 2011.
PEREIRA NS, MANSO VAV, SILVA AMC, SILVA MB. Mapeamento Geomorfologico e Morfodinâmica do Atol das Rocas, Atlântico Sul. Revista de Gestão Costeira Integrada. 10 (3): 331- 345, 2010.
PEREIRA, N. S.; MANSO, V. A. V.; MACEDO, R. J. A.; DIAS, J. M. A.; SILVA, A. M. C. Detrital carbonate sedimentation of the Rocas Atoll, South Atlantic. Anais da Academia Brasileira de Ciências, v.85, n.1, p.57-52. 2013.
PINHEIRO, B.R.; PEREIRA, N. S.; AGOSTINHO, P. G. F.; FLORES MONTES, M. J. Population dynamics of Siderastrea stellata Verril, 1868 from Rocas Atoll, RN: implications for predicted climate change impacts at the only South Atlantic atoll. Anais da Academia Brasileira de Ciências, no prelo, 2016.
ROUNDS, S.A., Alkalinity and acid neutralizing capacity (version 4.0),in National field manual for the collection of water-quality data, Wilde, F.D. and Radtke, D.B., eds., U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9, Chapter A6, Section 6.6, 45 p. 2012.
(http://water.usgs.gov/owq/FieldManual/Chapter6/section6.6/.) RUIZ- ZÁRATE, M.A.; ARIAS- GONZÁLES, J.E. Spatial study of juvenile corals in the Northern region of the Mesoamerican Barrier Reef System (MBRS). Coral Reefs. 23: 584-594 2004.
SAMMARCO, P.W. Coral recruitment across the central Great Barrier Reef: a preliminary report. Aust. Mar. Sci. Bull. (abstracts).83: 26.1983.
SAMMARCO, P.W.; Andrews, J.C. Localized dispersal and recruitment in Great Barrier Reef corals: the Helix experiment. Science. NY. 239:1422-1424. 1988
SHAW, E.C., MCNEIL, B.I., TILBROOK, B.D., Impacts of ocean acidification in naturally variable coral reef flat ecosystems. Journal of Geophysical Research. 2012. doi:10.1029/2011JC007655
STRICKLAND, J. D. H.; PARSONS, T. R. A practical handbook of sea water analysis. Bulletin of Fisheries Research, v.167, p.1-311, 1972.
VILLAS-BOAS, A. B.; FIGUEIREDO, M. A. O; VILLACA,R. C. Colonization and growth of crustose coralline algae (Corallinales, Rhodophyta) on the Rocas Atoll. Brazilian Journal Of Oceanography, 53(3/4):147-156, 2005.
ZEEBE RE. 2012. History of seawater carbonate chemistry, atmospheric CO2, and ocean acidification. Annu. Rev. Earth Planet. Sci. 40 40, 141–165
