Hyarobiologia The International Journal on Limnology and Marine Sciences Volume 474, 15 April 2002 A review of selected South- and East Asian Tanytarsus v.d. Wulp (Diptera: Chironom- idae) Torbjorn Ekrem Records of Orthoclad species from the Darjeeling—Sikkim Himalayas of India (Diptera: Chironomidae), with notes on their ecology Niladri Hazra, Goutam K. Saha, Prasanta K. Chaudhuri Nutrient availability in the sediment and the reciprocal effects between the native seagrass Cymodocea nodosa and the introduced rhizophytic alga Caulerpa taxifolia Giulia Ceccherelli, Nicola Sechi A low-cost procedure for automatic seafloor mapping, with particular reference to coral reef conservation in developing nations Trond-Iinge Kvernevik, Mohd Zambri Mohd Akhir, Jill Studholme Indigenous microflora and opportunistic pathogens of the freshwater zebra mussel, Dreissena polymorpha Ji-Dong Gu, Ralph Mitchell Seasonal water quality of shallow and eutrophic Lake Pamvotis, Greece: implications for restoration José R. Romero, Iphigenia Kagalou, Jorg Imberger, Dimitra Hela, Melina Kotti, Aristides Bartzokas, Triantafyllos Albanis, Nicholaos Evmirides, Spiros Karkabounas, Joannis Papa- giannis, Amalia Bithava Spatial and temporal niche overlap of two mayfly species (Ephemeroptera): the role of substratum roughness and body size Giuseppe Crosa, Andrea Buffagni 107-115 Rainfall, phycocyanin, and N:P ratios related to cyanobacterial blooms in a Korean large reservoir 117-124 Chi-Yong Ahn, An-Sik Chung, Hee-Mock Oh Field experiments on colonization and movements of stream invertebrates in an Apennine river (Visone, NW Italy) Stefano Fenoglio, Paolo Agosta, Tiziano Bo, Marco Cucco 125-130 RAPD analysis in the Neotropical fish Brycon lundii: genetic diversity and its implica- tions for the conservation of the species Adriane Pinto Wasko, Pedro Manoel Galetti Jr. 131-137 A new species of Hemicyclops (Copepoda, Poecilostomatoida) from burrows of the mud shrimp Upogebia major in an estuarine mud-flat in Tokyo Bay, Japan Hiroshi Itoh, Shuhei Nishida 139-146 iV The corophiid amphipods of Tauranga Harbour, New Zealand: evidence of an Australian crustacean invader Mark I. Stevens, lan D. Hogg, M. Ann Chapman 147-154 The genus Haplocyclops Kiefer, 1952 (Copepoda, Cyclopoida, Cyclopidae): Redescrip- tion of the type-species, H. gudrunae, and its congeners Frank Fiers 155-169 The relation between habitus and habitat structure as evidenced by a new species of Glochinema (Nematoda, Epsilonematidae) from the plateau of the Great Meteor Seamount Gunnar Gad 171-182 Effect of salinity on competition between the rotifers Brachionus rotundiformis Tschugunoff and Hexarthra jenkinae (De Beauchamp) (Rotifera) S.S.S. Sarma, Bertin Elguea-Sanchez, S. Nandini 183-188 Molluscan diversity in tidal marshes along the Scheldt estuary (The Netherlands, Belgium) L. Bruyndoncx, K. Jordaens, T. Ysebaert, P. Meire, T. Backeljau 189-196 Carbon, nitrogen and phosphorus dynamics in creek water of a Southeast Asian mangrove forest Erik Kristensen, Pinsak Suraswadi 197-211 Macrobenthic community structure before, during, and after implementation of the Clean Water Act in the Neches River estuary (Texas) Richard C. Harrel, Shawn T. Smith 213-222 Instar-specific head and body lengths of Hyalella (Amphipoda): criteria for starting and endpoints in experimental studies A. T. Kokkotis, J. D. McLaughlin 223-227 Effects of dredge material placement on benthic macroinvertebrates of the Illinois River Todd M. Koel, Kip E. Stevenson 229-238 Habitat characteristics and macroinvertebrate assemblages in boreal forest streams: relations to catchment silvicultural activities Petri Liljaniemi, Kari-Matti Vuori, Boris Ilyashuk, Hannu Luotonen 239-251 Placobdelloides stellapapillosa sp. n. (Glossiphoniidae) found feeding on crocodiles and turtles Fredric R. Govedich, Bonnie A. Bain, Ronald W. Davies 253-256 Author index 257 Electronic journals at ine Contact your librarian for more information