{"refrec":{"BRefID":241188,"RR":"<b>Fock, H.O.</b> (2014). Estimating historical trawling effort in the German Bight from 1924 to 1938. <i>Fish. Res. 154</i>: 26-37. <a href=\"http://dx.doi.org/10.1016/j.fishres.2014.02.001\" target=\"_blank\">http://dx.doi.org/10.1016/j.fishres.2014.02.001</a>","BEntID":232885,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Fish. Res. 154</i>: 26-37. <a href=\"http://dx.doi.org/10.1016/j.fishres.2014.02.001\" target=\"_blank\">http://dx.doi.org/10.1016/j.fishres.2014.02.001</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Fock, H.O.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Fock, H.O.","Englishabstract":"Based on historical landings and landings-per-unit-effort data, fishing effort was estimated in the period of 1924–1938 in a study area representing the German exclusive economic zone (EEZ) in the North Sea. Three main trawling fisheries were identified, i.e. the international flatfish fisheries comprising the effort of steam trawlers and motor cutters, the German shrimp fisheries and the industrial inshore fisheries. Except for shrimp trawling, which was performed by beam trawling with one beam per vessel, all historical trawling effort was identified as otter board trawling. The trawling effort increased from 1,131,000 to 1,232,000 h in 1924 to 3,170,000 to 3,836,000 h in 1937 and declined in 1938. The main fishery effort was contributed by the German shrimp fisheries, accounting for a maximum of 2,140,000 h in 1937. In comparison, in 2006, approximately 540,000 h were spent fishing in the trawl fisheries of the study area, comprising effort from small (=221 kW) to large beam trawlers (>221 kW), shrimp fisheries and otter board trawling. The bulk of the historical effort was concentrated at water depths of 5–20 m. With the implementation of combustion engines and new gear technology, the period of 1924–1938 marked a new era for marine fishing when virtually all space became accessible and, in particular, the trawling of inshore areas increased.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Estimating historical trawling effort in the German Bight from 1924 to 1938","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-13 01:31:21.509999","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"VMS; North Sea; Historical change; Fishing effort; Haddock; Plaice","OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2014-09-08","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000336117000004","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.fishres.2014.02.001"},"refs":null,"anarec":{"AnaID":241188,"PubliDate":2014,"Pagination":"26-37","XtraPublOfAnaID":null,"ISBN":null,"Volume":"154","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45227,"SerRR":"Fisheries Research. Elsevier: Amsterdam.  ISSN 0165-7836; e-ISSN 1872-6763","StandardTitleSer":"Fisheries Research","ISSN":"0165-7836","AbbrevSer":"Fish. Res.","StandardTitleMon":null,"StartPage":26,"Pages":12,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Fock","Firstname":null,"Initials":"H.O.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":232885,"AutID":36812,"OrderNr":1,"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":263996,"LibID":36,"BRefID":241188,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"263996","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":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Elsevier","City":"Amsterdam"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"20th century","ThestID":102008,"Acronym":"TRT","ThesTermPath":"20th century"},{"ThesaurusTerm":"ANE, France, North Sea","ThestID":187877,"Acronym":"GEOT_NOMR","ThesTermPath":"ANE, France, North Sea"},{"ThesaurusTerm":"ANE, Germany, German Bight","ThestID":182046,"Acronym":"ASFA_GEOT","ThesTermPath":"ANE, Germany, German Bight"},{"ThesaurusTerm":"Flatfish fisheries","ThestID":3305,"Acronym":"ASFA","ThesTermPath":"Fisheries > Finfish fisheries > Flatfish fisheries"},{"ThesaurusTerm":"Shrimp fisheries","ThestID":7634,"Acronym":"ASFA","ThesTermPath":"Fisheries > Shellfish fisheries > Crustacean fisheries > Shrimp fisheries"},{"ThesaurusTerm":"Trawlers","ThestID":8741,"Acronym":"ASFA","ThesTermPath":"Fishing vessels > Trawlers"},{"ThesaurusTerm":"Landings","ThestID":146885,"Acronym":"CAB","ThesTermPath":"Forestry > Forestry practices > Logging > Landings"}],"thestermsASFA":[{"ThesaurusTerm":"20th century"},{"ThesaurusTerm":"ANE, France, North Sea"},{"ThesaurusTerm":"ANE, Germany, German Bight"},{"ThesaurusTerm":"Flatfish fisheries"},{"ThesaurusTerm":"Landings"},{"ThesaurusTerm":"Shrimp fisheries"},{"ThesaurusTerm":"Trawlers"}],"taxtermsASFA":[{"TaxTerm":"Melanogrammus aeglefinus"},{"TaxTerm":"Pleuronectes platessa"}],"geotermsASFA":[{"GeoTerm":"German Bight"}],"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":{"545":{"SpName":"Historische zeevisserij","SpColID":545,"ParSpColID":null,"TopParID":null,"ShortName":"Hist. Zeevisserij","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"Hist. Zeevisserij"},"792":{"SpName":"Historische zeevisserij in de Noordzee","SpColID":792,"ParSpColID":545,"TopParID":545,"ShortName":"Hist. Zeevisserij in de Noordzee","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":545,"SpColPath":"Hist. Zeevisserij/Hist. Zeevisserij in de Noordzee"},"548":{"SpName":"Historische zeevisserij: Literatuur","SpColID":548,"ParSpColID":545,"TopParID":545,"ShortName":"Hist. Zeevisserij: Literatuur","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":545,"SpColPath":"Hist. Zeevisserij/Hist. Zeevisserij: Literatuur"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":232885,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"http://dx.doi.org/10.1016/j.fishres.2014.02.001","externalID":"10.1016/j.fishres.2014.02.001","URLTypeCode":"DOI","URLID":35482,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":[{"ThesaurusTerm":"20th century","ThestID":102008,"Acronym":"TRT","ThesTypID":3,"ThesType":"Transportation Research Thesaurus"},{"ThesaurusTerm":"ANE, France, North Sea","ThestID":187877,"Acronym":"GEOT_NOMR","ThesTypID":35,"ThesType":"Geoterms no link Marine Regions"},{"ThesaurusTerm":"ANE, Germany, German Bight","ThestID":182046,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Flatfish fisheries","ThestID":3305,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Landings","ThestID":146885,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Shrimp fisheries","ThestID":7634,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Trawlers","ThestID":8741,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Melanogrammus aeglefinus [Haddock]","AphiaID":126437,"TaxtID":34468},{"TaxTerm":"Pleuronectes platessa [Plaice]","AphiaID":127143,"TaxtID":25138}],"geoterms":[{"GeoTerm":"German Bight","GeoObjectID":3427,"GeotID":328}],"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"20th century","DutchTerm":"20ste eeuw","ThestID":102008,"Acronym":"TRT","ThesTypID":3,"ThesType":"Transportation Research Thesaurus"},{"ThesaurusTerm":"ANE, France, North Sea","DutchTerm":null,"ThestID":187877,"Acronym":"GEOT_NOMR","ThesTypID":35,"ThesType":"Geoterms no link Marine Regions"},{"ThesaurusTerm":"ANE, Germany, German Bight","DutchTerm":null,"ThestID":182046,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Flatfish fisheries","DutchTerm":"Platvis-visserij","ThestID":3305,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Landings","DutchTerm":null,"ThestID":146885,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Shrimp fisheries","DutchTerm":"Garnaalvisserij","ThestID":7634,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Trawlers","DutchTerm":null,"ThestID":8741,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Melanogrammus aeglefinus","DutchTerm":"Schelvis","AphiaID":126437,"TaxtID":34468},{"TaxTerm":"Pleuronectes platessa","DutchTerm":"Pladijs","AphiaID":127143,"TaxtID":25138}],"geotermsFRIS":[{"GeoTerm":"German Bight","DutchTerm":null}],"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Roelofs, Marleen, M.","newSesDate":{"date":"2014-09-08 09:05:14.560000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Lyssens, Liesbeth, L.","updSesDate":{"date":"2018-02-13 19:34:46.407000","timezone_type":3,"timezone":"Europe/Brussels"}}}