{"refrec":{"BRefID":7926,"RR":"<b>Polk, P.</b> (1962). Bijdrage tot de kennis der mariene fauna van de Belgische kust (III). Waarnemingen aangaande het voorkomen, de voortplanting, de settling en de groei van <i>Crepidula fornicata</i> (L.). <i>Ann. Soc. R. Zool. Bel. 92(1)</i>: 47-80","BEntID":7926,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Ann. Soc. R. Zool. Bel. 92(1)</i>: 47-80","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Polk, P.","OrigTitleTranslFlag":1,"Authorstringtrunc":"Polk, P.","Englishabstract":"1. For the first time, <i>Crepidula fornicata</i> was observed in Belgium on 28-9-1911; in 1959, it became an oyster pest. 2. It was first introduced into Belgium with seed oysters from Great Britain. Later on, with seed oysters from the Netherlands. 3. Probably, the geographical spreading is caused by the adult animals attached to oysters. Larval propagation is responsible for local extension. 4. In the sluice-dock at Ostend, larvae occur from the middle of May till the end of November; they swim freely for a period of about 12 days. The first massive emission of larvae is observed during May and June, a second one in September. 5. The larvae settle preferentially at a depth of 65 cm. 6. Maximum settling takes place in May. It then decreases till October. 7. After two months, the animals already form chains consisting on an average of 4 specimens. 8. Maximum growth takes place from May until the end of August. After a lapse of five months, a length of 24.1 mm was recorded. 9. Only those individuals which settled in May and June persist in relatively large numbers. 10. Four-month o1d <i>Crepidula</i> were found incubating eggs. The number of eggs averaged 1,500.","AbstractOtherLang":"1. In België werden de eerste <i>Crepidula's</i> waargenomen op 28-9-1911. In 1959 vormden zij een oesterpest. 2. De eerste <i>Crepidula’s</i> in België zijn ingevoerd met zaaioesters uit Engeland. Later met zaaioesters uit Nederland. 3. De verspreiding gebeurt waarschijnlijk door de verspreiding van volwassen exemplaren, vastgehecht op oesters. Larvale verspreiding is verantwoordelijk voor plaatselijke uitbreiding. 4. In Oostende worden de larven aangetroffen van half mei tot einde november en zwemmen de larven rond gedurende een periode van ongeveer twaalf dagen. Het grootste aantal larven wordt waargenomen in mei en juni. Een tweede bloeiperiode is merkbaar in september. 5. Bij de vasthechting werd een Voorkeur gevonden voor een diepte van min of meer 65 cm onder het wateroppervlak. 6. De sterkste vasthechting gebeurt in mei en vermindert tot in Oktober. 7. Na twee maanden vormden de dieren reeds kettingen bestaande uit gemiddeld 4 individuen. 8. De sterkste groei gebeurt van mei tot einde augustus. Op 5 maanden tijd werd een lengte bereikt van 24,1 mm. 9. Enkel deze individuen die zich vastgehecht hebben in mei en juni worden later in grote aantallen teruggevonden. 10. Bij 4 maanden oude <i>Crepidula's</i> werden legsels teruggevonden. Het aantal eieren bedroeg gemiddeld 1.500 exemplaren.","BibLvlCode":"AS","StandardTitle":"Bijdrage tot de kennis der mariene fauna van de Belgische kust (III). Waarnemingen aangaande het voorkomen, de voortplanting, de settling en de groei van <i>Crepidula fornicata</i> (L.)","OrigTitleLangCode":"nl","OrigTitleLangCodeExtended":"dut","OrigTitleLangID":41,"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":"2014-03-27","DateCreate":"2001-04-24","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":7926,"PubliDate":1962,"Pagination":"47-80","XtraPublOfAnaID":null,"ISBN":null,"Volume":"92","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45105,"SerRR":"Annales de la Société Royale Zoologique de Belgique = Annalen van de Koninklijke Belgische Vereniging voor Dierkunde. Société Royale Zoologique de Belgique: Bruxelles.  ISSN 0771-5528","StandardTitleSer":"Annales de la Société Royale Zoologique de Belgique = Annalen van de Koninklijke Belgische Vereniging voor Dierkunde","ISSN":"0771-5528","AbbrevSer":"Ann. Soc. R. Zool. Bel.","StandardTitleMon":null,"StartPage":47,"Pages":34,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Polk","Firstname":"Philip","Initials":"P.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":7926,"AutID":4045,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":10,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":256254,"LibID":36,"BRefID":7926,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"256254","RFID":null,"PaidValue":null,"Medium":"Server","Description":"VLIZ Open Access","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open access","URL":null,"ClassifID":53,"Classification":"Open access","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":null,"InternalReq":0,"LoggedInReq":0,"Disclaimer":null,"DutchDisclaimer":null,"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":"Société Royale Zoologique de Belgique","City":"Bruxelles"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Introduced species","ThestID":4428,"Acronym":"ASFA","ThesTermPath":"Taxa > Species > Introduced species"}],"thestermsASFA":[{"ThesaurusTerm":"Introduced species"}],"taxtermsASFA":[{"TaxTerm":"Crepidula fornicata (Linnaeus, 1758)"}],"geotermsASFA":[{"GeoTerm":"Sluice Dock"}],"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"},"396":{"SpName":"VLIZ Bibliographies","SpColID":396,"ParSpColID":null,"TopParID":null,"ShortName":"vliz:biblio","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"vliz:biblio"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":7926,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":7926,"AbstractFlag":0,"LangID":41,"LangCode":"nl","Lang":"Dutch","DutchTerm":"Nederlands","LangCodeExtended":"dut"},{"BEntID":7926,"AbstractFlag":1,"LangID":41,"LangCode":"nl","Lang":"Dutch","DutchTerm":"Nederlands","LangCodeExtended":"dut"}],"urls":null,"thesterms":[{"ThesaurusTerm":"Introduced species","ThestID":4428,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Crepidula fornicata (Linnaeus, 1758)","AphiaID":138963,"TaxtID":17622}],"geoterms":[{"GeoTerm":"Sluice Dock","GeoObjectID":5477,"GeotID":6362}],"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"Introduced species","DutchTerm":"Geïntroduceerde soorten","ThestID":4428,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Crepidula fornicata (Linnaeus, 1758)","DutchTerm":null,"AphiaID":138963,"TaxtID":17622}],"geotermsFRIS":[{"GeoTerm":"Sluice Dock","DutchTerm":"Spuikom"}],"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Haspeslagh, Jan, J.","newSesDate":{"date":"2001-04-24 13:56:52.103000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Haspeslagh, Jan, J.","updSesDate":{"date":"2014-03-27 08:39:37.740000","timezone_type":3,"timezone":"Europe/Brussels"}}}