{"refrec":{"BRefID":10617,"RR":"Graham, H.W.; Edwards, R.L. (1962). The world biomass of marine fishes, in: Heen, E. et al.Fish in nutrition. pp. 3-8","BEntID":10617,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":", in: Heen, E. et al.Fish in nutrition. pp. 3-8","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Graham, H.W.; Edwards, R.L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Graham, H.W.; Edwards, R.L.","Englishabstract":"Many people believe that the 300 million cubic miles of salt water in the oceans have a comparably vast potential as a source of protein food. Under present conditions, however, there is a definite limit to this protein potential, at least in so far as marine fish are concerned. The most productive fishing areas are various grounds on Continental Shelves, especially in the northern hemisphere and in areas of the oceans where phytoplankton production is relatively high. Many of these areas are probably approaching peak production now. A computation of potential world harvest, based on the catch of fish per unit area on representative productive Continental Shelf areas, yields an estimated annual harvest potential of 55 million metric tons. Using the estimated net primary production in all oceans as another basis for computation, it is estimated that approximately 115 million metric tons of marine fish are potentially available for harvest annually. However, a large portion of this production is too thinly scattered to be economically fished at this time. It is shown that a relation exists between fish catch and benthic biomass. Inasmuch as the benthic biomass decreases very rapidly with depth, one cannot expect any substantial population of fishes on the bottom beyond the Continental Shelves. There appears to be no reason to suggest that, under present conditions and with present fishing techniques, the annual harvest of marine fishes can be more than doubled or, at the very most, tripled. It is estimated that a reasonable expectation might be about 60 million mettic tons annually.","AbstractOtherLang":"Beaucoup de personnes croient que les 300 millions de milles cubiques d'eau salée des océans représentent un potentiel relativement vaste comme source d'aliments protéiques. Sous les conditions actuelles, cependant, il existe une limite définie à ce potentiel protéique, au moins en ce qui concerne les poissons marins. Les zones de pêche les plus productives sont des fonds divers sur les plateaux continentaux, spécialement dans l'hémisphère nord et dans les régions océaniques où la production de phytoplankton est relativement haute. Un calcul de la récolte potentielle mondiale, basée sur la quantité pêchée par unité de surface sur les zones de production représentatives du plateau continental, permet d'estimer à 55 millions de tonnes métriques le potentiel annuel de récolte. En prenant comme autre base d'appréciation la production primaire nette estimée de tous les Océans, on arrive à chiffrer à 115 millions environ de tonnes la quantité de poisson disponible en puissance pour être récoltée chaque année. Cependant, une large part de cette production est trop clairsemée pour être pêchée d'une maniere économique durant cette période. Il est démontré qu'une relation existe entre la capture du poisson et la biomasse benthique. Etant donné que la biomasse benthique décroit très rapidement avec la profondeur, on ne peut s'attendre à trouver une population substantielle de poissons sur le fond au delà des plateaux continentaux. Il semble ainsi qu'il n'y ait pas de raison de penser que, sous les conditions actuelles et avec les présentes techniques de pêche, la récolte annuelle de poissons marins puisse être plus que doublée, voire triplée. On peut estimer les possibilités raisonnables à 60 millions environ de tonnes métriques par an.","BibLvlCode":"AM","StandardTitle":"The world biomass of marine fishes","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1962,"MonPub":null,"DateUpdate":"2021-01-05","DateCreate":"2001-06-05","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":10617,"PubliDate":1962,"Pagination":"3-8","XtraPublOfAnaID":null,"ISBN":null,"Volume":null,"Issue":null,"BRefMon":10616,"BRefMonRR":"Heen, E.; Kreuzer, R. (1962). Fish in nutrition. Fishing News (Books): London. XXIII, 447 pp.","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":null,"SerRR":null,"StandardTitleSer":null,"ISSN":null,"AbbrevSer":null,"StandardTitleMon":"Fish in nutrition","StartPage":3,"Pages":6,"ToPubliDate":null,"BRefBibLvlCode":"M","SerNotes":null,"AutString":"Heen, E.; Kreuzer, R."},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Graham","Firstname":"Herbert","Initials":"H.W.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":10617,"AutID":9437,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Edwards","Firstname":"R. Lawrence","Initials":"R.L.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":10617,"AutID":14886,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":356874,"LibID":36,"BRefID":10617,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"356874","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"
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