Hydrobiologia The International Journal on Limnology and Marine Sciences Volume 495, 15 March 2003 Flora and water chemistry in a relictic mire complex: the Sierra Segundera mire area (Zamora, NW Spain) Jesus Munoz, Juan J. Aldasoro, Ana Negro, Caridad de Hoyos, José C. Vega Influence of gizzard shad on phytoplankton size and primary productivity in mesocosms and earthen ponds in the southeastern U.S. David L. Watson, David R. Bayne, Dennis R. DeVries, J. Williams Sources of organic carbon in mangrove sediments: variability and possible ecological implications S. Bouillon, F. Dahdouh-Guebas, A.V.V.S. Rao, N. Koedam, F. Dehairs Shell growth of the golden mussel, Limnoperna fortunei (Dunker, 1857) (Mytilidae), in the Rio de fa Plata, Argentina M. E. Marofas, G. A. Darrigran, E. D. Sendra, G. Breckon Response of a shallow boreal lake to recent nutrient enrichment — implications for diatom-based phosphorus reconstructions Tommi Kauppila, Samu E. Valpola Zebra mussels (Dreissena polymorpha) limit food for larval fish (Pimephales promelas) in turbulent systems: a bioenergetics analysis L. A. Bartsch, W. B. Richardson, M. B. Sandheinrich Habitat selection in rock pool corixids: the effect of local density on dispersal V. Imari Pajunen, Irmeli Pajunen Cyanobacterial toxicity and migration in a mesotrophic lake in western Washington, USA Bernadette R. Johnston, Jean M. Jacoby The zooplankton crustacean of the temporary waterbodies of the Oasis of Palo (Rome, central Italy) Graziella Mura, Benedetta Brecciaroli A comparative analysis of the phytoplankton from six pampean lotic systems (Buenos Aires, Argentina) Liliana Marcela Mercado 103-117 Marine hyadesiid mites from Gough Island David J. Marshall, Steven L. Chown 119-126 The life-cycle of the sponge Ephydatia fluviatilis (L.) living on the reed Phragmites australis in an artificially regulated lake Elda Gaino, Manuela Rebora, Carla Corallini, Tisza Lancioni 127-142 1V Community structure and spatial variability of marine nematodes in tropical Australian pioneer seagrass meadows R. Fisher, M.J. Sheaves 143-158 Seasonal comparisons of leaf processing rates in two Mediterranean rivers with different nutrient availability Margarita Menéndez, Oliver Hernandez, Francisco A. Comin 159-169 Composition and richness of macrophyte communities in small Danish streams — influence of environmental factors and weed cutting Annette Baattrup-Pedersen, Soren E. Larsen, Tenna Riis 171-179 Early determination of perch and pikeperch recruitment in the northern Baltic Sea Jakob Kjellman, Jyrki Lappalainen, Lauri Urho, Richard Hudd 181-191 Didymosphenia geminata in running waters of southern Poland — symptoms of change in water quality? Barbara Kawecka, Jacek Sanecki 193-201 Elevated atmospheric CO; alters leaf litter quality for stream ecosystems: an in situ leaf decomposition study Nancy C. Tuchman, Kirk A. Wahtera, Robert G. Wetzel, James A. Teeri 203-211 EKlecltronuic wjourenalsr atd nlinne€ Contact your librarian for more information