Twelfth International Seaweed Symposium : proceedings of the Twelfth International Seaweed Symposium : held in Sao Paulo, Brazil, July 27-August 1, 1986

Proceedings of the Twelfth International Seaweed Symposium, held in São Paulo, Brazil, July 27-August, 1986. Front Matter....Pages I-XXVIII Opening addresses....Pages 1-3 The main seaweed foods in Japan....Pages 5-29 Utilization of seaweed hydrocolloids in the food industry....Pages 31-47 Using genetic markers in phycological research....Pages 49-56 Progress in the genetics and breeding of economic seaweeds in China....Pages 57-61 Molecular genetic analysis of variation in Costaria costata (Turner) Saunders....Pages 63-67 The mass cultivation of Spirulina platensis in Brazil....Pages 69-70 On the economics of Spirulina production in Chile with details on drag-board mixing in shallow ponds....Pages 71-74 Strain selection of Spirulina suitable for mass production....Pages 75-77 Recent research on Spirulina in Italy....Pages 79-82 A pond for edible Spirulina production and its hydraulic studies....Pages 83-89 Experiments on Spirulina culture on waste-effluent media and at the pilot plant....Pages 91-93 Spirulina , real aid to development....Pages 95-97 The mass culture of Dunaliella salina for β-carotene: from pilot plant to production plant....Pages 99-105 Competition between Dunaliella species at high salinity....Pages 107-116 The challenge confronting industrial microagriculture: high photosynthetic efficiency in large-scale reactors....Pages 117-121 Enzymatic removal of the cell walls from zygotes of Fucus distichus (L.) Powell (Phaeophyta)....Pages 123-129 Calluses and callus-like growth in seaweeds: Induction and culture....Pages 131-138 Structures and functions of the polysaccharides from the cell wall of Gracilaria verrucosa (Rhodophyceae, Gigartinales)....Pages 139-146 Tissue and cell culture of New Zealand Pterocladia and Porphyra species....Pages 147-154 Workshop on algal polysaccharides....Pages 189-191 Molecular markers for marine algal polysaccharides....Pages 155-160 Carrageenan analysis of tissue cultures and whole plants of Agardhiella subulata ....Pages 161-166 Macroalgal commercialization in the Orient....Pages 167-172 Useful European seaweeds: past hopes and present cultivation....Pages 173-181 Macroalgal commercialization in the United States....Pages 183-188 Taxonomy of some North Atlantic Dictyota species (Phaeophyta)....Pages 193-197 Patterns of apical structure in the genera Gelidium and Pterocladia (Gelidiaceae, Rhodophyta)....Pages 199-203 Morphogenesis of the frond of Gracilaria verrucosa (Huds.) Papenfuss: the differentiation of vegetative and sexual areas....Pages 205-206 Analytical pyrolysis as a taxonomic tool in Gracilaria (Rhodophyta: Gigartinales)....Pages 207-211 Indications of species status from total protein signatures in Callithamnion (Ceramiaceae)....Pages 213-220 Is the frequency of apomeiosis in the Rhodophyta a genetic character?....Pages 221-222 Endophytic algae of Irish moss ( Chondrus crispus Stackh.)....Pages 223-228 Growth responses of two Laminaria saccharina populations to environmental variation....Pages 229-232 Effects of epifauna on algal growth and quality of the agar produced by Gracilaria verrucosa (Hudson) Papenfuss....Pages 233-237 Gracilaria verrucosa in Golfo Nuevo, Chubut, Argentina. Biological parameters and environmental factors....Pages 239-244 Presence and development of populations of the introduced brown alga Sargassum muticum in the southwest Netherlands....Pages 245-255 Distribution and use of some economically important seaweeds in Iceland....Pages 257-260 Observations on the deep-water flora of Bermuda....Pages 261-266 Community metabolism on rocky-shore assemblages in a mesocosm: A. Fluctuations in production, respiration, chlorophyll a content and C:N ratios of grazed and non-grazed assemblages....Pages 267-275 Effects of diesel oil and subsequent recovery of commercial benthic algae....Pages 277-284 Uses of seaweeds as biomonitors of zinc levels in Cork Harbour, Ireland....Pages 285-290 New developments in the seaweed industry of New Zealand....Pages 291-293 Production of Chilean Gracilaria : problems and perspectives....Pages 295-299 The collection, utilization and potential farming of red seaweeds in Namibia....Pages 301-305 Management of a Gracilaria natural bed in Lenga, Chile: A case study....Pages 307-311 Biological bases for management of Iridaea laminarioides Bory in southern Chile....Pages 313-328 A harvesting strategy for Iridaea laminarioides in central Chile....Pages 329-333 Use of projection matrix models in the assessment of harvesting strategies for Sargassum ....Pages 335-339 Fishing and catch characteristics of an eastern Canadian Irish moss ( Chondrus crispus Stackh.) dragraker....Pages 341-347 Growth and production in wild and cultured stocks of Chondrus crispus ....Pages 349-354 Culture of Eucheuma cottonii and Eucheuma spinosum in Indonesia....Pages 355-358 Farming of Eucheuma in the south Pacific islands of Fiji....Pages 359-362 Seaweed culture in Rio Grande do Norte, Brazil....Pages 363-367 Culture of Gracilaria sp. in outdoor tanks: productivity....Pages 369-373 Growth of Gracilaria sp. in the laboratory....Pages 375-379 Preliminary experiments on the cultivation of the brown alga Laminaria (Phaeophyta) Lamouroux in Brazil....Pages 381-385 An economic appraisal for the onshore cultivation of Laminaria spp....Pages 387-398 Growth rates in culture of several species of Sargassum from Florida, USA....Pages 399-404 Microorganisms as digestors of seaweed cell walls....Pages 405-409 Effects of PCBs and hydrazine on life processes in microscopic stages of selected brown seaweeds....Pages 411-415 Use of Cystoseira and Sargassum embryonic sporophytes for testing toxicity effects....Pages 417-423 Acute toxicity of nonpersistent oils on Porphyra and Monostroma ....Pages 425-429 Nitrogen metabolism in Gracilaria secundata Harv....Pages 431-441 The efficacy of dissolved inorganic nitrogen for quality in cultivated laver....Pages 443-446 Critical light conditions for young Ecklonia cava and Eisenia bicyclis with reference to photosynthesis....Pages 447-455 Studies on the distribution and metabolism of D-rhodoic acid in algae....Pages 457-461 Antibiotic activity of lipid-soluble extracts from Caribbean marine algae....Pages 463-469 Fatty acids as antimicrobial substances in brown algae....Pages 471-475 Preliminary information on the ascorbic acid content in some Adriatic seaweeds....Pages 477-481 Biological activity in Macrocystis pyrifera from Argentina: sodium alginate, fucoidan and laminaran. I. Antitumor, cytotoxicity and humoral immune response....Pages 483-489 Biological activity in Macrocystis pyrifera from Argentina: sodium alginate, fucoidan and laminaran. II. Genotoxicity....Pages 491-496 Biological activity in Macrocystis pyrifera from Argentina: sodium alginate, fucoidan and laminaran. III. Antiviral activity....Pages 497-500 Seasonal fluctuations of growth rate and chemical composition of Gracilaria cf. conferta in outdoor culture in Israel....Pages 501-507 Studies of the yield of agar, gel strength and quality of agar of Gracilaria edulis (Gmel.) Silva from Brazil....Pages 509-512 Protein and amino acids analysis during alimentary-agar extraction from Gelidium sesquipedale ....Pages 513-522 The chemical substitution of the agar-type polysaccharide from Gracilaria secundata f. pseudoflagellifera (Rhodophyta)....Pages 523-529 Polysaccharides from nuclear phases of Iridaea ciliata and I. membranacea ....Pages 531-534 Seasonal study of carrageenan structures from female gametophytes of Chondrus crispus Stackhouse (Rhodophyta)....Pages 535-539 Characteristics of alginate from Laminaria digitata cultivated in a high-phosphate environment....Pages 541-549 Extraction of alginic acid from a Brazilian brown alga, Laminaria brasiliensis ....Pages 551-555 Isolation and characterization of hydrogenase from Spirulina platensis ....Pages 557-561 Purification and some properties of L -amino acid oxidase from Amphiroa crassissima Yendo....Pages 563-569 Genetic analysis of Klebsiella pneumoniae alginate lyase by transposon Tn 10 mutagenesis....Pages 571-575 Back Matter....Pages 577-590