Frontmatter -- Contents -- Author Index -- Subject Index -- Taxonomical Index -- Illustrated Key to the Filamentous Higher Marine Fungi -- Obituary -- Fungal Colonization of Submerged Bruguiera cylindrica and Rhizophora apiculata Wood -- Phycochemical Studies on Colpomenia sinuosa (Scytosiphonales, Phaeophyta) -- The Structure and Reproduction of a New Species Helminthocladia nizamuddinii (Nemaliales — Rhodophyta) from the Coast of Pakistan -- Cyst-theca Relationships in Scrippsiella (Dinophyceae) and Related Orthoperidinioid Genera -- Phycochemical Studies on Gracilaria foliifera (Gigartinales, Rhodophyta) -- Vertical Migration of a Flagellate-dominated Bloom in a Shallow South African Estuary -- Ultrastructure of a Marine Dinoflagellate, Peridinium quinquecorne Abé (Peridiniales) from South Africa with Particular Reference to its Chrysophyte Endosymbiont -- New Records of Benthic Marine Algae from Easter Island -- Cytophotometric Estimation of Inter- and Intraspecific Nuclear DNA Content Variation in Gracilaria and Gracilariopsis (Gracilariales, Rhodophyta) -- Life History of Gymnogongrus furcellatus (C. Ag.) J. Ag. (Rhodophyta, Phyllophoraceae) from Chile -- Antithamnion algeriensis nov. sp. (Ceramiaceae, Rhodophyta) from Algeria (Mediterranean Sea) -- The Effect of Light and Ammonium on Growth, Epiphytes and Chemical Constituents of Gracilaria conferta in Outdoor Cultures -- Scrippsiella spinifera sp. nov. (Pyrrhophyta): A New Dinoflagellate from the Northern Adriatic Sea -- The Vegetative Thallus of Pterocladia capillacea (Gelidiales, Rhodophyta) I. An Ultrastructural and Cytochemical Study -- The Vegetative Thallus of Pterocladia capillacea (Gelidiales, Rhodophyta) II. Pit Connections -- A Preliminary List of Marine Algae from the Banc dArguin (Mauritania) -- Distribution and Thickness Patterns in Subtidal Encrusting Algae from Washington -- Screening of Brazilian Marine Algae for Hemagglutinins -- Phycochemical Studies on Dermonema abbottiae (Nemaliales — Rhodophyta) -- The Marine Algae of Mar Piccolo, Taranto (Southern-Italy): A Re-assessment -- Histochemical and Electron Microscope Studies of Ascospore Ontogeny in Three Marine Fungi with Cleistothecia: Amylocarpus encephaloides Currey, Dryosphaera navigans Koch et Jones and Eiona tunicata Kohlm -- Trace Metal Content in Some Seaweeds from the Northern Adriatic -- The Nutritional Eco-physiology of Chaetomorpha linum and Ulva rigida in Peel Inlet, Western Australia -- A Rapid and Inexpensive Method for Surface Sterilisation of Ecklonia radiata (Phaeophyta) for Tissue Culture -- A Seasonal Study of the Seagrass Ruppia maritima L. in Tampa Bay, Florida. Organic Constitutents and Tolerances to Salinity and Temperature -- Fungi and Their Biomass in Detritus of the Seagrass Thalassia hemprichii (Ehrenberg) Ascherson -- Seasonal and Geographical Variations in the Antimicrobial Activity of Seaweeds from the Mangalore Coast of India -- Decomposition of Rhizophora mangle, Avicennia schaueriana and Laguncularia racemosa Leaves in a Mangrove of Paranagua Bay (Southeastern Brazil) -- Seasonality of Growth and Production of a Deep-water Population of Halimeda tuna (Chlorophyceae, Caulerpales) in the North-western Mediterranean -- Ecology of Chondrus crispus Stackhouse on the Northern Coast of Spain II. Reproduction -- Helicascus kanaloanus, Helicascus nypae sp. nov. and Salsuginea ramicola gen. et sp. nov. from Intertidal Mangrove Wood -- Particulate Organic Carbon, Nitrogen and Phosphorus Content in Roots, Rhizomes and Differently Aged Leaves of Zostera noltii Hornem. in Oosterschelde Estuary (Southwestern Netherlands) -- The Transport of 3-Phosphoglycerate in Isolated Chloroplasts of the Green Seaweed Bryopsis corticulans Setch -- Lissodinium Matzenauer, emend., Based upon the Rediscovery of L. schilleri Matz., Another Member of the Family Podolampadaceae Lindemann (Dinophyceae) -- Effects of Nutrient Enrichment on Microalgal Community Composition in a Coastal Shallow-water Sweiterlesen