Table Of Content

Contents Committees of the Fourteenth International Seaweed Symposium Warning to Laminaria, by Ralph Lewin Acknowledgements Marinalg International Awards Student Paper Awards List of participants Addresses B. Santelices, President, International Seaweed Association J. Y. Floc’h, Chairman, National Organizing Committee, XIVth International Seaweed Symposium J.C. Bodere, President Université de Bretagne Occidentale 1. Plenary lectures Environmental and internal control of seasonal growth in seaweed by K. Lining Present and future needs for algae and algal products by A. Jensen Importance of basic research in applied phycology 2. Taxonomy and general biology Intraspecific sterility barrier confirms that introduction of Sphaerotrichia divaricata (Phaeophyceae, Chordariales) into the Mediterranean was from Japan by A. F. Peters, H. Kawai and I. Novaczek Virus infections in three marine brown algae: Feldmannia irregularis, F. simplex, and Ectocarpus siliculosus by D. G. Miller and K. Frenzer Gelidiaceae (Rhodophyta) in Bahia de Banderas, Western Pacific, México by E. Serviere-Zaragoza, D. Rodriguez-Vargas and J. Gonzalez-Gonzalez Preliminary comments on a redescription of Pseudolithophyllum fuegianum and Titanoderma con- spectum (Rhodophyta, Corallinales) in Tierra del Fuego, Argentina by M. L. Mendoza and S. Molina Mass distribution in the fronds of Macrocystis pyrifera from New Zealand and California by M. A. Nyman, M. T. Brown, M. Neushul, B. W. W. Harger and J. A. Keogh An examination of the population genetics of Laminaria and other brown algae in the Laminariales using starch gel electrophoresis by C. D. Neefus, B. P. Alien, H. P. Baldwin, A. C. Mathieson, R. T. Eckert, C. Yarish and M. A. Miller Numerical taxonomy of some taxa of the genus Fucus in the Iberian Peninsula by I. Pérez-Ruzafa, T. Gallardo and R. Gémez-Cancio vi Morphological and taxonomic studies on some little-known species of Gracilaria (Gracilariales: Rhodophyta) from Venezuela. 1. G. damaecornis by E. K. Ganesan Vegetative and reproductive morphology of Herpochondria corallinae (Martens) Falkenberg and H. elegans (Okamura) Itono (Ceramiaceae, Rhodophyta) from Korea by Y.-S. Keum and I. K. Lee New perspectives in the taxonomy of the Gigartinaceae (Gigartinales, Rhodophyta) by M. H. Hommersand, M. D. Guiry, S. Fredericq and G. L. Leister Vertical distribution of coralline algae in the rocky intertidal of northern Chile Ic rar is ed R EN aac g vata tC RS ENE RG RE NON 6 6 CARES NY HOSS ES Oe’ Differences in response between haploid and diploid isomorphic phases of Gracilaria verrucosa (Rhodophyta: Gigartinales) exposed to artificial environmental conditions by C. Destombe, J. Godin, M. Nocher, S. Richerd and M. Valero Differential reattachment capacity of isomorphic life history phases of Gelidium sesquipedale by J. A. Juanes and A. Puente Morphogenetic effects of daylength in Schottera nicaeensis by C. Perrone and G. P. Felicini The systematics of Porphyra: character evolution in closely related species by S.C. Lindstrom and K. M. Cole Assessment of allozyme variation among New Zealand populations of Gracilaria chilensis (Gracilariales, Rhodophyta) using starch-gel electrophoresis by S. Intasuwan, M. E. Gordon, C. H. Daugherty and G. C. Lindsay Microtubule organization in the apical cell of Sphacelaria (Phaeophyceae) and its related proto- plast by A. M. Rusig, H. Le Guyader and G. Ducreux 3. Ecology Allocation of blade surface to reproduction in Laminaria longicruris of Long Island Sound (USA) by M.S. Van Patten and C. Yarish A methodology for parameter estimation in seaweed productivity modelling by P. Duarte and J. G. Ferreira Population studies on a South African carrageenophyte: Jridaea capensis (Gigartinaceae, Rhodo- phyta) by J. J. Bolton and M. A. P. Joska Characterization of tidal pool algae in the Mexican tropical Pacific coast by H. Leén, D. Fragoso, D. Leon, C. Candelaria, E. Serviere and J. Gonzalez-Gonzalez . Size distribution, growth and production of Sargassum thunbergii in an intertidal zone of Padori, west coast of Korea by C.-H. Koh, Y. Kim and S.-G. Kang Population studies of Laminaria hyperborea from its northern range of distribution in Norway by K. Sjotun, S. Fredriksen, T. E. Lein, J. Rueness and K. Sivertsen Life history and reproductive potential of the agarophyte Gelidium robustum in California by R. A. Melo and M. Neushul A comparison between two populations of Lessonia trabeculata (Phaeophyta: Laminariales) mi- croscopic stages by M. E. Edding, E. Fonck, P. Orrego, M. Venegas and J. Macchiavello Changes and degradation of seaweed stands in the northern Adriatic by I. M. Munda Resource biology of Pterocladia capillacea (Gelidiales, Rhodophyta) populations in Brazil by E. C. Oliveira and F. A. S. Berchez 4. Resources ‘Hard’ data for matrix modelling of Laminaria digitata (Laminariales, Phaeophyta) populations by A. R. O. Chapman Plucking or cutting Gelidium sesquipedale? A demographic simulation of harvest impact using a population projection matrix model by R. Santos History of kelp beds (Macrocystis) in Orange and San Diego Counties, California by W. J. North, D. E. James and L. G. Jones The role of herbivores in the collapse of the Gracilaria resource at Saldanha Bay, South Africa by R. J. Anderson, G. J. Levitt, D.W . Keats and R. H. Simons Recent changes in the seaweed community of western Prince Edward Island: Implications for the seaweed industry by G. J. Sharp, C. Tétu, R. Semple, D. Jones Spatial distribution and quantification of Fucus species and Ascophyllum nodosum beds in intertidal zones using spot imagery by B. Guillaumont, L. Callens and P. Dion Evaluation of remote sensing techniques for monitoring giant kelp populations by L. E. Deysher Limiting factors in optimizing seaweed yield in Chile by J. A. Vasquez and R. Westermeier Changes in the population structure of Ascophyllum nedosum (L.) Le Jolis due to mechanical . harvesting by P. O. Ang, G. J. Sharp and R. E. Semple 5. Cultivation, tissue culture Exudates from Gracilaria chilensis stimulate settlement of epiphytic ulvoids by B. Santelices and D. Varela Recent status of Gracilaria cultivation in Taiwan by T. Ajisaka and Y.-M. Chiang Some aspects of the growth of Gracilaria tenuistipitata in pond culture by C. Wu, R. Li, G. Lin, Z. Wen, L. Dong, J. Zhang and X. Huang Interaction mechanisms between Gracilaria chilensis (Rhodophyta) and epiphytes by A. H. Buschmann and P. Gomez Farming Eucheuma in Zanzibar, Tanzania by T. Lirasan and P. Twide Environmental variation and large-scale Gracilaria production by A. Pizarro and B. Santelices Aspects of the farming and processing of Kappaphycus and Eucheuma in Indonesia by D. M. Luxton A Eucheuma (Solieriaceae, Rhodophyta) cultivation test on the south-west coast of Madagascar by J. Mollion and J.-P. Braud Vili Clonal propagation of Eucheuma denticulatum and Kappaphycus alvarezii for Philippine seaweed farms by C.J. Dawes, G. C. Trono Jr. and A. O. Lluisma Regeneration from callus of Undaria pinnatifida (Harvey) Suringar (Laminariales, Phaeophyta) by Y. Kawashima and H. Tokuda Gracilaria conferta and its epiphytes: (2) Interrelationship between the red seaweed and Ulva cf. lactuca by E. Svirski, S. Beer and M. Friedlander Life cycle of Porphyra vietnamensis Tanaka and Pham-Hoang Ho from Thailand by K. Lewmanomont and O. Chittpoolkusol Apical callus formation in Solieria filiformis (Gigartinales, Rhodophyta) cultured in tanks by D. R. Robledo and G. Garcia-Reina Development of callus-like structures and plant regeneration in thallus segments of Grateloupia filiformis Kiitzing (Rhodophyta) by N.S. Yokoya, S. M. P. B. Guimardes and W. Handro Culture of Hypnea musciformis (Rhodophyta, Gigartinales) on artificial substrates attached to linear ropes by F. A. S. Berchez, R. T. L. Pereira and N. F. Kamiya Protoplasts of Gelidium robustum (Rhodophyta) by D. A. Coury, T. Naganuma, M. Polne-Fuller and A. Gibor Regeneration of whole plants from Gracilaria asiatica Chang et Xia protoplasts (Gracilariaceae, Rhodophyta) by X.-H. Yan and S.-J. Wang 6. Physiology Cell-cell-recognition during fertilization in Ectocarpus siliculosus (Phaeophyceae) by C. E. Schmid Physiological comparison between gametophytes and tetrasporophytes of Gelidium canariensis (Gelidiaceae: Rhodophyta) by P. A. Sosa, M. Jiménez del Rio and G. Garcia-Reina The use of acetic acid as a source of carbon by cultured Chondrus crispus (Gigartinales, Rhodo- phyta) Stackhouse by M. A. Amat and J.-P. Braud The effect of water flow on photosynthetic processes of the alga Ulva lactuca L. by E. W. Koch A comparative analysis of wild and laboratory grown Laminaria abyssalis (Phaeophyta) using modulated fluorescence by M.A. Rodrigues, Y. Yoneshigue-Valentin and C. P. Dos Santos Light quality effects on subsequent dark '*CO,-fixation in Fucus serratus by G. Tremblin, P. Jolivet and A. Coudret Response of Audouinella saviana (Meneghini) Woelkerling (Nemaliales, Rhodophyta) cultures to monochromatic light by L. Talarico and A. Cortese The pattern of cell wall adhesive formation by Fucus Zygotes by V. Vreeland, E. Grotkopp, S. Espinosa, D. Quiroz, W. M. Laetsch and J. West Effect of relative water motion on photosynthetic rate of the red alga Gracilaria conferta by Y. Gonen, E. Kimmel and M. Friedlander Enhanced development and differentiation of protoplasts and spores of green and red seaweeds by a Pterocladia agar from New Zealand by M. Polne-Fuller, H. Amano, T. Fujimura, Y. K. Hong, D. A. Coury, I. Sousa-Pinto and A. Gibor 7. Chemical composition A further fractionation of agarose by K. B. Guiseley, F. H. Kirkpatrick, R. B. Provonchee, M. M. Dumais and S. Nochumson Determination of alginate composition by a simple enzymatic assay by K. Ostgaard Phospholipase A, inhibitors from marine algae by A. M.S. Mayer, V. J. Paul, W. Fenical, J. N. Norris, M. S. de Carvalho and R. S. Jacobs Influence of mineralisation methods on the determination of the mineral content of the brown seaweed Undaria pinnatifida by atomic absorption spectrophotometry by J. Fleurence and C. Le Coeur Natural occurrence of denatured phycoerythrin during Porphyra cultivation by H. Amano and H. Noda Seasonal variation in the physical properties of agar and biomass of Gracilaria sp. (chorda type) from Tosa Bay, southern Japan by A. Chirapart and M. Ohno The use of diterpenoids as chemotaxonomic markers in the genus Cystoseira by R. Valls, L. Piovetti and A. Praud Kinetics and specificity of alginate lyases by B. Larsen, K. Hogen and K. Ostgaard Gel strength of Ca-limited alginate gels made in situ by K. I. Draget, M. K. Simensen, E. Onsgyen and O. Smidsrod High performance liquid chromatography of biliprotein from Bangia atropurpurea ‘Conchocelis’ by H.-N. Chou and J.-M. Jeng Mannuronan C-5 Epimerase activity in protoplasts of Laminaria digitata by R. S. Hagen Rodde, K. Ostgaard and B. A. Larsen Using elasticity/temperature relationships to characterise gelling carrageenans by A. Parker Marine algal lectins: new developments by D. J. Rogers and K. Hori Stable isotope labelling method for studies of saccharide metabolism in Agardhiella subulata by Y. Wu and M. R. Gretz Carrageenan yield and properties of Eucheuma uncinatum (Seth. & Gard.) Daw. cultured under natural conditions by J. A. Zertuche-Gonzalez, I. Pacheco-Ruiz and I. Soria-Mercado Annual variations of the biochemical composition of Gelidium latifolium (Greville) Thuret et Bornet by A. Mouradi-Givernaud, T. Givernaud, H. Morvan and J. Cosson xX The yield, physical and chemical properties of agar gel from Gracilaria species (Gracilariales, Rhodophyta) of the Kenya coast by H. A. Oyieke Incorporation of '*C-radioactivity into lipid classes at different maturity of Laminaria japonica Aresch. cultured under natural and partially controlled conditions by M. Honya, Y. Kashiwabara and K. Nisizawa Seasonal changes in the chemical and gelling characteristics of agar from Gracilaria verrucosa collected in Turkey by M. Yenigil Effect of dark treatment on the starch degradation and agar quality of cultivated Gracilariopsis lemaneiformis (Rhodophyta, Gracilariales) from Venezuela by R. E. Rincones 8. Chemical structure A new chemical tool for characterization and partial depolymerization of red algal galactans by A. I. Usov The chemical structure of the polysaccharide from Dasyclonium incisum by I. J. Miller, R. Falshaw and R. H. Furneaux Biologically active oxylipins from seaweeds by W. H. Gerwick, P. J. Proteau, D. G. Nagle, M. L. Wise, Z. D. Jiang, M. W. Bernart and M. Hamberg Molecular cut-off values of dialysis membranes for alginate and kappa-carrageenan oligosaccha- rides by S. H. Knutsen, S. T. Moe, B. Larsen and H. Grasdalen Purification and properties of tauropine dehydrogenase from a red alga, Rhodoglossum japonicum by M. Sato, M. Takeuchi, N. Kanno, E.Nagahisa and Y. Sato 9. Molecular biology Quanhtification and characterization of nuclear genomes in commercial red seaweeds: Gracilari- ales and Gelidiales by D. F. Kapraun, J. A. Dutcher and D. W. Freshwater Revision of the kelp family Alariaceae and the taxonomic affinities of Lessoniopsis Reinke (Lam- inariales, Phaeophyta) by G. W. Saunders and L. D. Druehl Phylogeny of the northeast Pacific brown algal (Phaeophycean) orders as inferred from 18S rRNA gene sequences by I. H. Tan and L. D. Druehl Subject index Chemical components index Taxonomic index Author index