{"refrec":{"BRefID":33246,"RR":"<b>Lango-Reynoso, F.; Chávez-Villalba, J.; Cochard, J.C.; Le Pennec, M.</b> (2000). Oocyte size, a means to evaluate the gametogenic development of the Pacific oyster, <i>Crassostrea gigas</i> (Thunberg). <i>Aquaculture 190</i>: 183-199. <a href=\"https://dx.doi.org/10.1016/S0044-8486(00)00392-6\" target=\"_blank\">https://dx.doi.org/10.1016/S0044-8486(00)00392-6</a>","BEntID":33246,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquaculture 190</i>: 183-199. <a href=\"https://dx.doi.org/10.1016/S0044-8486(00)00392-6\" target=\"_blank\">https://dx.doi.org/10.1016/S0044-8486(00)00392-6</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lango-Reynoso, F.; Chávez-Villalba, J.; Cochard, J.C.; Le Pennec, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lango-Reynoso, F. <i>et al.</i>","Englishabstract":"This study reports on the results of 38,100 measurements of the oocyte diameters of the Pacific oyster, <i>Crassostrea gigas</i>, in three populations living along the French Atlantic shoreline. The analysis of oocytes' diameters and histological examinations of the gonads indicated that <i>C. gigas</i> individuals collected in 1996, 1997 and 1998 in the Bay of Brest (Anse du Roz and Pointe du Château) and Marennes-Oléron showed a clearly defined pattern of seasonal gametogenic development. Comparisons between reproductive stages, sites and years did not reveal significant differences in oocyte diameter (*P>0.05). Considerations from qualitative and quantitative characteristics of this species allowed us to propose a reproductive scale based on oocyte diameter and consisting of four stages: (1) \"Early gametogenesis\" with an oocyte diameter mean of 8.47±4.6  m, (2) \"Growing stage\" with a diameter mean of 21.4±8.4  m, (3) \"Mature stage\" with a mean of 36±4.4  m and (4) \"Degenerating stage\" with 46±7.3  m in mean diameter. This scale was generated from a modal distribution analysis (interactive program for fitting mixtures of distributions) and microscopic descriptions of gonad characteristics. The use of this scale for reproductive studies in <i>C. gigas</i> is discussed.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Oocyte size, a means to evaluate the gametogenic development of the Pacific oyster, <i>Crassostrea gigas</i> (Thunberg)","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":2000,"MonPub":null,"DateUpdate":"2003-03-18","DateCreate":"2003-03-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000089021900014","VABBcode":null,"OpenAcc":1,"DOI":"10.1016/S0044-8486(00)00392-6"},"refs":null,"anarec":{"AnaID":33246,"PubliDate":2000,"Pagination":"183-199","XtraPublOfAnaID":null,"ISBN":null,"Volume":"190","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42190,"SerRR":"Aquaculture. 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