Hydrobiologia The International Journal on Limnology and Marine Sciences Contents Volume 385 Distribution and biomass of microphytes measured by benthic chlorophyll a in a tropical lagoon (New Caledonia, South Pacific) by C. Garrigue Moina mukhamedievi n. sp. (Crustacea, Cladocera) from ricefields of Uzbekistan (central Asia) by ILM. Mirabdullayev Distribution of introduced Japanese macroalgae Undaria pinnatifida, Sargassum muticum (Phaeophyta) and Antithamnion Pectinatum (Rhodophyta) in the Lagoon of Venice by D. Curiel, G. Bellemo, M. Marzocchi, M. Scattolin & G. Parisi Effects of ultraviolet radiation on primary productivity in a high altitude tropical lake by R.A. Kinzie III, A.T. Banaszak & M.P. Lesser Effect of sediment quality on benthic macroinvertebrate communities in streams in the north of France by F. Grumiaux, A. Leprétre & N. Dhainaut-Courtois The pattern of recovery of disturbed microbial communities inhabiting hard substrates by A.I. Railkin Analysis of macrobenthic community structure in relation to different environmental sources of contamination in two littoral ecosystems from the Gulfo f Cadiz (SW Spain) by T.A. Del Valls, M. Conradi, E. Garcia-Adiego, J.M. Forja & A. GOmez-Parra Dissolved DNA produced through a prey—predator relationship in a species-defined aquatic microcosm by Z. Kawabata, N. Ishii, M. Nasu & M.-G. Min The Philodinavidae (Rotifera Bdelloidea): a special family by C. Ricci & G. Melone Larval development of the back-keeled mullet Liza carinata by W.A. Ismail, K. Al-Abdul-Elah & F. Al-Yamani Comparative morphology of the feeding basket of five species of Euphausia (Crustacea, Euphausiacea) in the western North Pacific, with some ecological considerations by H.-L. Suh & S.-D. Choi 107-112 Short-term variations in the abundance and cell volume of bacterioplankton in an artificial tropical lake by L.B. Jugnia, R.D. Tadonléké, T. Sime-Ngando, S.M. Foto & N. Kemka 113-119 Long-term changes of macroalgal vegetation in the Skagerrak area by G. Johansson, B.K. Eriksson, M. Pedersén & P. Snoeijs Influence of substrate and deployment time on fish assemblages on an artificial reef at For- mentera Island (Balearic Islands, western Mediterranean) by J. Coll, J. Moranta, O. Reflones, A. Garcia-Rubies & I. Moreno Deformities in larval Prodiamesa olivacea (Meigen, 1818) (Diptera, Chironomidae) and their use as bioindicators of toxic sediment stress a a Fe a RI noo evs bint eint So kw i wes Sandee nncaseness 153-162 Effects of copper on periphyton communities assessed in situ using chemical-diffusing sub- strates by ME. Armegard, FV. McCormack & 3. Cattina, 38... ..... 6 once ceccvccnnnnneinacer n s 163-170 Thiol pools and glutathione redox ratios as possible indicators of copper toxicity in the green macroalgae Enteromorpha spp. from the Scheldt Estuary (SW Netherlands, Belgium) and Thermaikos Gulf (Greece, N Aegean Sea) by J.W. Rijstenbil, S. Haritonidis, P. Malea, M. Seferlis & J.A. Wijnholds 171-181 Blooms of tunicates Oikopleura spp. and Dolioletta gegenbauri in the Seto Inland Sea, Japan, during summer by Y. Nakamura 183-192 Population growth and production of Habrotrocha rosa Donner (Rotifera: Bdelloidea) and its contribution to the nutrient supply of its host, the northern pitcher plant, Sarracenia purpurea L. (Sarraceniaceae) by L.A. Bledzki & A.M. Ellison 193-200 Dissolved oxygen and thermal regimes of a Ugandan crater lake by L.J. Chapman, C.A. Chapman, T.L. Crisman & F.G. Nordlie 201-211 Books received Book reviews Author index