Journal of EXPERIMENTAL MARINE BIOLOGY Journal of Experimental Marine Biology and Ecology AND ECOLOGY 251 (2000) 279-280 www.elsevier.nl/locate/jembe Contents of Volume 251 Research articles U. Bamstedt, M.B. Martinussen (Norway) Estimating digestion rate and the problem of individual variability, exemplified by a scyphozoan jellyfish J.P. Manderson, B.A. Phelan, A.W. Stoner, J. Hilbert (USA) Predator—prey relations between age-1| + summer flounder (Paralichthys dentatus, Linnaeus) and age-0 winter flounder (Pseudopleuronectes americanus, Walbaum): predator diets, prey selection, and effects of sediments and macrophytes D. Lirman (USA) Fragmentation in the branching coral Acropora palmata (Lamarck): growth, survivor- ship, and reproduction of colonies and fragments K.M. Berntsson, P.R. Jonsson, M. Lejhall, P. Gatenholm (Sweden) Analysis of behavioural rejection of micro-textured surfaces and implications for recruitment by the barnacle Balanus improvisus H. Hummel, R.H. Bogaards, G. Bachelet, F. Caron, J.C. Sola, C. Amiard-Triquet (Netherlands, France, Spain) The respiratory performance and survival of the bivalve Macoma balthica (L.) at the southern limit of its distribution area: a translocation experiment L.L. Koh, N.K.C. Goh, L.M. Chou, Y.W. Tan (Singapore) Chemical and physical defenses of Singapore gorgonians (Octocorallia: Gorgonacea) A.H. Baird, T.P. Hughes (Australia) Competitive dominance by tabular corals: an experimental analysis of recruitment and survival of understorey assemblages Book Reviews Dynamic Aquaria: Building Living Ecosystems The Biology of Mangroves Announcement Contents of Volume 251 / J. Exp. Mar. Biol. Ecol. 251 (2000) 279-280 Research articles E.G.L. Koh, H. Sweatman (Australia) Chemical wartare among scleractinians: bioactive natural products from Tubastraea faulkneri Wells kill larvae of potential competitors T.S. Bianchi, B. Johansson, R. Elmgren (USA, Sweden) Breakdown of phytoplankton pigments in Baltic sediments: effects of anoxia and loss of deposit-feeding macrofauna B.L. Bayne (Australia) Relations between variable rates of growth, metabolic costs and growth efficiencies in individual Sydney rock oysters (Saccostrea commercialis) K.B. Brokordt, J.H. Himmelman, H.E. Guderley (Canada) Effect of reproduction on escape responses and muscle metabolic capacities in the scallop Chlamys islandica Muller 1776 D.T. Dy, H.T. Yap (Philippines) Ammonium and phosphate excretion in three common echinoderms from Philippine coral reefs U. Bamstedt (Norway) A new method to estimate respiration rate of biological material based on the reduction of tetrazolium violet K. Anger, G. Charmantier (Germany, France) Ontogeny of osmoregulation and salinity tolerance in a mangrove crab, Sesarma curacaoense (Decapoda: Grapsidae) Book Review Beaches and Dunes of Developed Coasts Author Index of Volume 251] Contents of Volume 251