Zool. Wefer, G., 1980. Sci. J. exp. Nutrient dynamics of Halimeda tuna on Conch Reef: possible influence of internal tides? Rijksuniversiteit Groningen founded in 1614 - top 100 university. Bavestrello et al., 2000), ascidians (e.g. Häder, D. P., M. Porst, H. Herrmann, J. Schäfer& R. Santas, 1996. Each individual thallus (frond) consists of a single cell forming a tube with multiple cell nuclei. Growth, survivorship, recruitment, and reproduction of Halimeda tuna, a dominant green alga in many reef systems of the Florida Keys, were monitored at a shallow back reef ( 4 - 7m) and deep reef slope ( 15 - 22 m) on Conch Reef. Coral Reefs 6: 227- 236. Pulsed delivery of subthermocline water to Conch Reef (Florida Keys) by internal tidal bores. Seasonality of growth and production of a deep-water population of Halimeda tuna (Chlorophyceae, Caulerpales) in the North-western Mediterranean. Some species in the order Bryopsidales (Chlorophyta) are very successful at this type of propagation, although all members of this siphonous order are unicellular and multinucleate (for review, see Vroom and Smith, 2001). Biol. Mshigeni, 1978, Kilar and McLachlan, 1986, Santelices and Varela, 1994, Trowbridge, 1998, Smith and Walters, 1999, Beach and Walters, 2000, Ceccherelli and Piazzi, 2001). Espèce : Halimeda tuna (J.Ellis & Solander) J.V.Lamouroux 1816, FR monnaie de poséidon, GB sea cactus alga Embranchement : Chlorophyta Classe : Ulvophyceae Ordre : Bryopsidales Famille : Halimedaceae Cette algue verte est légèrement calcifiée. Effects of nutrients versus herbivores on reef algae: a new method for manipulating nutrients on coral reefs. This may have arisen from variability in light and nutrient availability. Changes in the coral reefs of San Blas, Caribbean Panama: 1983- 1990. The length of these fragments ranged from 0.7 to 15.7 cm, but > 75% of the collected fragments were < 6 cm. Back to Search. Biol. mar. Sort by Lm Country Locality tm: Lm (cm) Length (cm) Age range (y) tm (y) Sex of fish Country Locality; Search for more references on maturity: Scirus. Production rates vary latitudinally because of differences in abiotic and biotic drivers, but the different methods used to estimate CaCO3 production rate may also explain some of the wide variation among estimates. In 14-week field trials, one-third or fewer fragments of any species survived at 7 m, potentially because fragments were covered by large amounts of sediment. J. Motta, 1999. We examined fragment accumulation and retention using artificial seagrass units (ASUs) mimicking seagrasses with long (20 cm) leaves (Posidonia/Zostera) and short (5 cm) leaves (Halophila spp.). Stress-strain behavior of sur-ficial carbonate sediments from Key West, Florida, U.S.A. Mar. India 14: 328- 334. Pollut. Nonetheless, the abundance and viability of fragments of C. filiformis available to attach suggest that asexual fragmentation is a successful reproductive strategy in this seaweed. Littler, M. M., D. S. Littler, S. M. Blair& J. N. Norris, 1985. Borowitzka, M. A.&A. Oecologia 118: 471- 482. Ecol. Guarded parking with wide surveillance 24 hours, with car valet available every day. 6). These species can also propagate asexually through clonal fragmentation. Borowitzka, M. A.&A. Comparative resource use by juvenile parrotfishes in the Florida Keys. Coral Reefs 6: 123- 130. The macroalgal species, Halimeda tuna, Halimeda opuntia, and Dictyota sp., are modular and clonal organisms that have the capability for morphological plasticity and asexual reproduction through fragmentation. Seventeen species of Halimeda have been grown in the laboratory in an open-circuit seawater cascade during a 6 year period. Alternatively, fragmentation may be the result of exogenous processes, such as predation (e.g. Het komt voornamelijk voor in warme zeeën. A Halimeda tuna nevű növényfajt, a Földközi-tengerben talált példányok alapján írták le. Halimeda bioherms along an open seaway: Miskito Channel, Nicaraguan Rise, SW Caribbean Sea. This is a preview of subscription content, log in to check access. Clifton, K. E.&L. J. exp. Sluiten. The performance of SPREAD was tested through sensitivity analysis and comparison with independent field data from four study sites in the Florida Reef Tract. 6. Gametangial clusters of Halimeda vary in size, shape, and position on the segment. Georesources Geotechnol. Ecol. Litter, M. M.&D. Fragments of H. opuntia and H. goreaui were more robust, and survival and rhizoid production were positively correlated with size in short-term trials. Menu en zoeken; Contact; My University; Student Portal Fragments may be created endogenously, as part of an organism's life history (e.g. Copin-Montegut, 1988. To better understand fragmentation, and ultimately recruitment of L. poiteaui, we examined fragment: 1) accumulation rates, 2) variability, 3) dispersal distances, and 4) attachment rates. Cladistics of the Bryopsidales: a preliminary analysis. Palaeoclimat. M. Abel, 1988a. 53-60, Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, Volume 241, 2020, Article 110625, Marine Environmental Research, Volume 160, 2020, Article 105045, Optics Communications, Volume 285, Issue 23, 2012, pp. Rijksuniversiteit Groningen founded in 1614 - top 100 university. Rao, V. P., M. Veerayya, R. R. Nair, P. A. Dupeuble& M. Lamboy, 1994. Host-plant specialization by a non-herbivorous amphipod: advantages for the amphipod and costs for the seaweed. 34: 351- 360. Studies have shown that with a good nutrition base they can actually double in growth in about 2-4 weeks. J. Phycol. N. Norris, 1988. Fragments that are produced as an integral part of an organism's life history are predicted to have high survivorship, whereas fragments produced by biotic or abiotic factors may or may not be able to survive and grow clonally. The calcareous reef alga Halimeda (Chlorophyta, Bryopsidales): a cretaceous genus that diversified in the Cenozoic. Calcification in the green alga Halimeda IV. The distribution and species composition of Halimeda meadows throughout the Great Barrier Reef province. Multer, H. G., 1988. Here we examine how this fragment pool interacts with real and artificial habitat structure in estuarine environments. Littler, M. M., D. S. Littler, S. M. Blair& J. N. Norris, 1986. Meinesz, A., 1972. Coral Reefs 6: 187- 193. Halimeda are green algae from the phylum Chlorophyta and are classified in the order Bryopsidales along with Caulerpa. In the latter case, it may advantageous for these organisms to develop mechanisms that promote survivorship of fragments. 116: 25- 44. Copyright © 2002 Elsevier Science B.V. All rights reserved. 166: 89- 100. Vroom, P.S., Smith, C.M., Coyer, J.A. Overall, a range of 4.7–9.4 fragments of Halimeda m−2 day−1 were found on Conch Reef; most fragments were generated by H. goreaui. Limnol. Szmant, A.M.&A. Disturbance and recovery of a deep-water Caribbean seagrass bed. et al. Growing Halimeda. The challenge of siphonous green algae. U.S. Geological Survey, St Petersburg, FL. Learn more about Institutional subscriptions. Highsmith, 1980, Tunnicliffe, 1981, Santelices and Varela, 1994, Walters and Smith, 1994, Wulff, 1995, Kramarsky-Winter et al., 1997).

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