{"refrec":{"BRefID":135161,"RR":"<b>Coombs, S.H.</b> (1981). A density-gradient column for determining the specific gravity of fish eggs, with particular reference to eggs of the mackerel <i>Scomber scombrus</i>. <i>Mar. Biol. (Berl.) 63(1)</i>: 101-106. <a href=\"https://dx.doi.org/10.1007/BF00394667\" target=\"_blank\">https://dx.doi.org/10.1007/BF00394667</a>","BEntID":129061,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Mar. Biol. (Berl.) 63(1)</i>: 101-106. <a href=\"https://dx.doi.org/10.1007/BF00394667\" target=\"_blank\">https://dx.doi.org/10.1007/BF00394667</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Coombs, S.H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Coombs, S.H.","Englishabstract":"A new method is described for determining the specific gravity of fish eggs. The technique requires the preparation of a stable column of a continuously graded solution of sea-water salts such that a specimen introduced into the column settles at a level of known specific gravity, where it is in hydrostatic equilibrium with the fluid in the column. The method allows the simultaneous measurement of specific gravity of a number of specimens continuously throughout development and is suitable for use aboard a vessel at sea. Differences of specific gravity may be resolved to a precision of better than 4x10<sup>-5</sup>; as an example of use of the method, the specific gravity of eggs of the mackerel <i>Scomber scombrus</i> L. declined during development within the range 1.0205 to 1.0245; unfertilized eggs displayed a continuous increase of specific gravity.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"A density-gradient column for determining the specific gravity of fish eggs, with particular reference to eggs of the mackerel <i>Scomber scombrus</i>","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-29 01:30:59.872784","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1981,"MonPub":null,"DateUpdate":"2009-05-08","DateCreate":"2009-05-08","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1981LY21600011","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/BF00394667"},"refs":null,"anarec":{"AnaID":135161,"PubliDate":1981,"Pagination":"101-106","XtraPublOfAnaID":null,"ISBN":null,"Volume":"63","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43352,"SerRR":"Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin.  ISSN 0025-3162; e-ISSN 1432-1793","StandardTitleSer":"Marine Biology: International Journal on Life in Oceans and Coastal Waters","ISSN":"0025-3162","AbbrevSer":"Mar. Biol. 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