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Synopsis of Biological Data on Knobbed Wrack Ascophyllum

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Synopsis of Biological Data on Knobbed Wrack Ascophyllum FA',.. 1isheries ..ynopsis No. 38 Rev. i FIRM/S38 Rev. i (Distribution restriced) SAST -Knobbed wrack - 7,80(01)006,01 SYNOPSIS OF BICOGICAL DATA OL KNOBBED WRAC Aseophyllum dosuir (',¡neus) Le Jc Ped by E. Baardseth FOOD AND AGÑICULTURE ORGANIZATION OF THE UNITED NATIONS F'O ROME, 1970 DOCUMENTS OF THE FISHERY DOCUMENTS DE LA DIVISION DES DOCUMENTOS DE LA DIRECCION RESOURCES DIVISION OF FAO DE- RESSOURCES HALIEUTIQUES DU DE- DE RECURSOS PESQUEROS DEL DE- PARTMENT OF FISHERIES PARTEMENT DES P1CHES DE LA FAO PARTAMENTO DE PESCA DE LA FAO Documents whicharenotofficial Des documents qui ne figurent pas Esta Subdirección publica varias se- FAO publications are issued in several parmi les publications officielles de la ries de documentos que no pueden series.They aregivenarestricted FAO sont publiés dans diverses séries. considerarse como publicacionesofi- distribution and thisfact should be Ils font seulement l'objet d'une distri- ciales de la FAO. Todos ellos tienen indicatedifthey are cited. Most of butionrestreinte, aussi convient-il de distribución limitada, öircunstancia que them are prepared as working papers le préciser lorsque ces documents sont debe indicarse en el caso de ser ci- formeetings,orare summariesof cités, Il s'agit le plus souvent de docu- tados. La mayoría de los títulos que information for use of member govern- ments de travailpréparés pour des figuran en dichas series son documen- ments, organizations, andspecialists réLinions, ou de résumés d'information tos de trabajo preparados para reunio- concerned. àl'intentiondes gouvernements des nes o resúmenes de información des- pays membres, ainsi que des organisa- tinados a los estados miembros, orga- tionsetspécialistesintéressés. Ces nizaciones y especialistas interesados. séries sont les suivantes: FAO Fisheries Report FIR IR (No.) FAO Fisheries Circular FIR IC (No.) FAO Fisheries Synopsis FIR IS (No.) Special groups of synopses are iden- Des catégories spéciales de synop- Grupos especiales de sinopsis se dis- tified by symbols followed by classi- ses sont identifiées à l'aide de symbo- tinguen con las siglas siguientes, se- ficationnumbers based on indexed les suivis des chiffres de classification guidas por números de clasificación code of "Current Bibliography": basés sur le code d'indexation de la que se basan en las claves de los « Current Bibliography »: índices de la « Current Bibliography ». SAST Data concerning certain species SAST Données sur certaines espèces SAST Datos relativos a ciertas espe- and fish stocks. et populations de poissons. cies y poblaciones. MAST Informationonmethodsand MAST Renseignements sur des mé- MAST Sinopsis sobre métodos y ma- subjects. thodes et des sujets. terias. OT Oceanographic data. OT Données océanographiques. OT Sinopsis sobre oceanografía. IT Limnological data. IT Données limnologiques. IT Sinopsis sobre limnología. and et y CART Information concerning fisheries CART Renseignements sur les pêche- CART Información sobre los recursos and resources of certain coun- ries et les ressources de cer- acuáticosvivos de algunos tries and regions (FID/S). tains pays et régions (FID/S). países y regiones (F1D/S). FAO Fisheries Technical Paper FIR IT (No.) Special groups of Technical Papers Des catégories spéciales de docu- Grupos especiales de documentos are identified by: ments techniques sontidentifiéesà técnicos se identifican por las siglas l'aide des symboles suivants: siguientes: RE Indexedlistsofexpertsand RE Listesindexéesd'expertset RE Listas índices de expertos y de institutionsdrawn from Regis- institutions tirées des registres instituciones tomadas de los re- ters maintained by the Fishery tenus à jour par la Division des gistros que se llevan en la Di- Resources Division. ressources halieutiques. rección de Recursos Pesqueros. CB Lists of periodicals,special CB Listes de périodiques, des sec- CB Listas de periódicos, secciones sections of 'Current Bibliogra- tions spéciales de la« Current especiales de la« Current Bi- phy for Aquatic Sciences and Bibliography for Aquatic Scien- bliography for Aquatic Sciences Fisheries," special bibliogra- ces and Fisheries », des biblio- and Fisheries », bibliografías es- phiesand papers concerning graphiesparticulièresetdes peciales y trabajos relativos a documentation problems. articles surlesproblèmes de los problemas de documenta- documentation. ción. MFS Provisionaleditionsof"FAO MFS Editions provisoires des « Ma- MFS Ediciones provisionales de los Manuals in Fisheries Science." nuels FAO de science halieuti- «Manuales de la FAO de Cien- que ». cias Pesqueras ». Some documents also have another Certains documents portent parfois Algunos documentos tienen también identification, if, for example, they have d'autres numéros d'identification, par otra identificación si, por ejemplo, son been contributed to a meeting for which exemple, s'ilsont été préparés pour contribuciones a una reunión cuyos do- papers have been numbered according une réunion dont les documents ont été cumentos han sido marcados con arre- to another system. marqués à l'aide d'un autre système. glo a otros sistemas. FAO Fisheries SynOpsis No. 38 Rev. i FIRN/S8 Rev. i (Distribution restricted) SÄST - Knobbed wrack - T,aOoi)O06.oi SYNoPSIS OP BIOLOGICAL DATA ON <NOBBED WRACK Asoophyllum nodosum (Linnaeus) Le Jolis Prepared by E. BAARDSETH University of Bergen Biological Station Espegrend Bi omet erdal en Norway FOOD MD AGRICUL1URE ORGANIZATION OF THE UNITED NATIONS Rome, December1970 ii PREPARATION OF THIS SYNOPSIS A revision of the provisional version issued in August 1968, following the revised Outline for the Preparation of Synopses of Data on Species of Algae and their Utilization adopted in March 1970. The preparation of the synopsis was promoted in view of the considerable importance of the species as a source or raw material for alginates. The provisional version was presented at the VI International Seaweed Symposium, Santiago de Compostela, 9-13 September 1968. The author compiled the information available from the relevant literature and included also un- published results obtained at the Norwegian Institute of Seaweed Research.Valuable unpublished data has also been communicated to him by scientists from various countries. Thus, the author wishes to ackrLow- ledge -the information from Curator R,K,S. Lee (Canada), Dr. S. Lund (Denmark), Dr. J.T. Koster (Nether- lands), Dr. A.D. Zinova (U.S.S.R.), Dr, H.P. Wilce (U.S.A.), Dr. C. MacFarlane (Canada), Dr. J. Seoane- Gamba (Spain), Dr. O. Suridene and Mr. J.P. 1asen (Norway), He also wishes to thank his colleagues at the Norwegian Institute of Seaweed Research for the communication of unpublished results, and for cor- rection of the manuscript. The present version of this synopsis has been edited by the Marine Biology and Environmental Branch of the FAO Department of Fisheries. Distribution "Current Bibliography" enty FAO Department of Fisheries Baardseth, E. (1970) l7-6M427 FAO Regional Fisheries Officers FAO Fish,Synops,, (38):pag,var, Regional Fisheries Councils andCommissions Synopsis of biological data on knobbed Selector SM Author wrack Ascophyllum nodosum (Linnaeus) Le Jolis ANW. ANE. Fucaceae - biological synopsis. Taxonomy and morphology. Geographical and ecological distribution, Metabolism - nutrition, growth. Life cycle - reproduction, phenology, Population - structure, density, mortality, biomasa, Harvesting - techniques, seasons, yields. Protection and management. Utilization - food, fodder, manure, industrial products. Selected bibliography. FIRÌ538 Rev, 1 Knobbed wrack iii CONTEN PS Page i IDIGNTITY 1:1 1.1. Nomenclature 1.11 Valid scientific nane 1,12Nomenclatural synonyms 1.13Vernacular names 1,2 Taxonomy 1.21 Affinities, diagnosis i 1.22 Sub-species i 1.23 Genetic data 5 1.3Morphology and. anatomy 5 1.31 External morphology 5 1.32 Anatony and. cytology 9 2 DISTRIBUTION, ECOLOGY ANDMETABOLISM 2:1 2i Total area 2.2 Localvertical and. horizontal distribution 2.3 Effects of ecological determinante i 2.4 Nutrition and. growth 3 2.41 Assimilation 4 2.42 Respiration * 2.43 Nutrition * 2.44Growth 4 3 LIFE HISTORY 3:1 3.1 Life cycle i 3.11 Alternation of generations 3.12Nuclear phases * 3.2 uction i 3.3Phenology 1 3.31 Seasonal variation in external appearance and morphology 1 3.32Seasonal variation in total fresh and dry weight 3,33Seasonal variation in other characteristics 1 4 POPULATION 4:1 4.1 Structure 4.11Age composition i 4.121oight or size composition 2 4.13 Sex Composition 3 iv FIRM/S38 Rev. 1 Knobbed wrack Pe 4.2 Density 3 4.21 Average density of defined areas 3 4.22Variation in density with ecological and accidental factors 4 4.3Mortality morbidity 5 4.4Total quantities 5 4.5 Accompanying species 5 5 HRVESTING 5:1 5.1 Equipment and method of haryestin 5,2 Harvesting seasons 5.3 Harvest ing areas and de,fla 5,4Re'rowth on harvested areas 5.5 Total annual yields 6 PROCTION A2D MMTA1EMT 6.1 Official regulations 6.2 Control of physical features * 6.3Control of chemical features * 6.31 Water pollution * 6.32Artificial fertilization * 6.4Control of biological features * 6.41 Control of predation and competition * 6.42Population manipulations * 6.5 Artificial culture * 7 CHEMICAL COMPOSITION 7:1 7.1 Water content 1 7.2Inorganicconstituents 2 - Ash content 2 Major mineral components 2 Trace elements 3 Halogens 4 - Nitrate 4 73 constituents 4 7.31 Carbohydrates 4 -Sulphated. polysaccharides 5 Laminaran 6 Mannitol 6 Other Carbohydrates 6 FIRM/S38 Rev. i Knobbed wrack 7.32Protein and. amino acids 6 7.33 'at 6 7.34Pigments 6 7035 Other
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