, Volume 216, Issue 1, pp 221–228 | Cite as

Abundance and distribution of hydroids in a mangrove ecosystem at Twin Cays, Belize, Central America

  • Dale R. Calder
Proceedings IV. Ecology Hydroids


Qualitative and quantitative collecting was undertaken in 1987 to determine the species composition, abundance, and distribution of hydroids in a mangrove system at Twin Cays, Belize. Of 49 species identified, the 5 most frequent were Ventromma halecioides, Nemalecium sp., Clytia hemisphaerica, Dynamena crisioides and Halopteris diaphana. Line-transect census data and qualitative observations showed that the hydroid fauna was sparse in sheltered, still-water areas of the mangal, but relatively abundant and diverse in areas exposed to waves and/or tidal currents. Species composition and relative abundance varied with depth at stations in exposed locations and in tidal creeks and channels. Although Turritopsoides brehmeri is known only from Twin Cays at present, it seems improbable that any of the species is restricted to mangrove ecosystems.

Key words

hydroids mangroves marine ecology benthos zonation Belize Caribbean Sea 


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  1. Boero, F., 1984. The ecology of marine hydroids and effects of environmental factors: a review. Pubbl. Staz. zool. Napoli I, Mar. Ecol. 5: 93–118.Google Scholar
  2. Boesch, D. F., 1977. Application of numerical classification in ecological investigations of water pollution. U.S. Environmental Protection Agency, Ecol. Res. Ser. EPA-600/3-77-033, 115 pp.Google Scholar
  3. Calder, D. R., 1976. The zonation of hydroids along salinity gradients in South Carolina estuaries. In G. O. Mackie (ed.), Coelenterate ecology and behavior. Plenum Press, N.Y.: 165–174.Google Scholar
  4. Calder, D. R., 1988a. Shallow-water hydroids of Bermuda: the Athecatae. R. Ontario Mus. Life Sci. Contrib. 148: 1–107.Google Scholar
  5. Calder, D. R., 1988b. Turritopsoides brehmeri, a new genus and species of athecate hydroid from Belize (Hydrozoa: Clavidae). Proc. biol. Soc. Wash. 101: 229–233.Google Scholar
  6. Calder, D. R., in press. Shallow-water hydroids of Bermuda: the Thecatae, exclusive of Plumularioidea. R. Ontario Mus. Life Sci. Contrib.Google Scholar
  7. Chapman, V. J. (ed.), 1977. Ecosystems of the world. 1. Wet coastal ecosystems. Elsevier Scientific Publishing Company, N.Y., 428 pp.Google Scholar
  8. Cornelius, P. F. S., 1982. Hydroids and medusae of the family Campanulariidae recorded from the eastern North Atlantic, with a world synopsis of genera. Bull. Br. Mus. nat. Hist. (Zool.) 42: 37–148.Google Scholar
  9. Florez Gonzalez, L., 1983. Inventario preliminar de la fauna hydroide de la Bahía de Cartagena y areas adyacentes. Boln Mus. Mar, Bogota 11: 112–140.Google Scholar
  10. Gili, J.-M., J. Murillo & J. Ros, 1989. The distribution pattern of benthic cnidarians in the western Mediterranean. Scient. Mar. 53: 19–35.Google Scholar
  11. Gravier, N., 1970. Etude des hydraires épiphytes des phanérogames marines de la région de Tuléar (sud-ouest de Madagascar). Recl Trav. Stn mar. Endoume, Fasc. Hors Sér. Suppl. 10: 111–161.Google Scholar
  12. Leloup, E., 1935. Hydraires calyptoblastiques des Indes Occidentales. Mém. Mus. r. Hist. nat. Belg. (Sér.2) 2: 1–73.Google Scholar
  13. Loya, Y., 1978. Plotless and transect methods. In D. R. Stoddart & R. E. Johannes (eds), Coral reefs: research methods. UNESCO Monogr. oceanogr. Methodol. 5: 197–217.Google Scholar
  14. Lugo, A. E. & S. C. Snedaker, 1974. The ecology of mangroves. A. Rev. Ecol. Syst. 5: 39–64.Google Scholar
  15. Macnae, W., 1968. A general account of the fauna and flora of mangrove swamps and forests in the Indo-west-Pacific region. Adv. mar. Biol. 6: 73–270.Google Scholar
  16. Mattox, N. T., 1949. Studies on the biology of the edible oyster, Ostrea rhizophorae Guilding, in Puerto Rico. Ecol. Monogr. 19: 339–356.Google Scholar
  17. Mattox, N. T. & S. Crowell, 1951. A new commensal hydroid in the mantle cavity of an oyster. Biol. Bull. 101: 162–170.Google Scholar
  18. Millard, N. A. H. & J. Bouillon, 1973. Hydroids from the Seychelles (Coelenterata). Annls Mus. r. Afr. cent. (Sci. zool.) 206: 1–106.Google Scholar
  19. Por, F. D. & I. Dor (eds), 1984. Hydrobiology of the mangal. The ecosystem of the mangrove forests. Dr W. Junk, The Hague, 260 pp.Google Scholar
  20. Rützler, K., 1969. The mangrove community, aspects of its structure, faunistics and ecology. Mem. Simp. Intern. Lagunas Costeras, UNAM-UNESCO, D.F.: 515–536.Google Scholar
  21. Rützler, K. & C. Feller, 1987. Mangrove swamp communities. Oceanus 30: 16–24.Google Scholar
  22. Seed, R. & R. J. O'Connor, 1981. Community organization in marine algal epifaunas. A. Rev. Ecol. Syst. 12: 49–74.Google Scholar
  23. Spracklin, B. W., 1982. Hydroidea (Cnidaria: Hydrozoa) from Carrie Bow Cay, Belize. In K. Rützler & I. G. Macintyre (eds), The Atlantic barrier reef ecosystem at Carrie Bow Cay, Belize, I. Structure and communities. Smithson. Contr. mar. Sci. 12: 239–251.Google Scholar
  24. Vervoort, W., 1968. Report on a collection of Hydroida from the Caribbean region, including an annotated checklist of Caribbean hydroids. Zool. Verb., Leiden 92: 1–124.Google Scholar
  25. Wedler, E., 1975. Ökologische Untersuchungen an Hydroiden des Felslitorals von Santa Marta (Kolumbien). Helgoländer wiss. Meeresunters. 27: 324–363.Google Scholar
  26. Wedler, E. & R. Larson, 1986. Athecate hydroids from Puerto Rico and the Virgin Islands. Stud. neotrop. Fauna Envir. 21: 69–101.Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Dale R. Calder
    • 1
    • 2
  1. 1.Department of Invertebrate ZoologyRoyal Ontario MuseumTorontoCanada
  2. 2.Department of ZoologyUniversity of TorontoTorontoCanada

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