{"refrec":{"BRefID":138635,"RR":"<b>Calabrese, A.; Davis, H.C.</b> (1970). Tolerances and requirements of embryos and larvae of bivalve molluscs. <i>Helgol. Wiss. Meeresunters. 20</i>: 553-564","BEntID":132314,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Helgol. Wiss. Meeresunters. 20</i>: 553-564","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Calabrese, A.; Davis, H.C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Calabrese, A.; Davis, H.C.","Englishabstract":"1. Techniques are discussed for obtaining bivalve embryos and larvae throughout the year by inducing gonad development in adults during winter and spring and retarding spawning until late fall and early winter.2. Development of routine methods for rearing larvae is described and data are presented on the food, temperature, salinity, and pH requirements and on the effect of different combinations of these factors on survival and growth of larvae of several species of bivalves.3. Some general conclusions are given on the effects of suspended materials, various pollutants, and toxicants on embryos and larvae.4. Progress in the study of genetics of bivalves is reported.","AbstractOtherLang":"Es werden Verfahren diskutiert, die es gestatten, Embryonen und Larven von Muscheln das ganze Jahr hindurch zu gewinnen. Diese basieren auf der Auslösung der Gonadenentwicklung geschlechtsreifer Muscheln im Winter und Frühjahr und der ausschließenden Verzögerung der Keimzellenentleerung bis zum Herbst und Frühwinter. Die Aufzucht von Larven, wie sie im Routineverfahren möglich ist, wird beschrieben. Nahrungs-, Temperatur-, Salinitäts- und pH-Ansprüche sowie die Wirkung verschiedener Faktorenkombinationen auf Überlebensrate und Wachstum der Larven einiger Arten werden dargestellt. Ferner wird über Toxizitätsstudien an Larven und über Fortschritte hinsichtlich des Studiums der Genetik der Bivalvia berichtet.","BibLvlCode":"AS","StandardTitle":"Tolerances and requirements of embryos and larvae of bivalve molluscs","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":1970,"MonPub":null,"DateUpdate":"2014-07-22","DateCreate":"2009-06-29","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1970G516300047","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":138635,"PubliDate":1970,"Pagination":"553-564","XtraPublOfAnaID":null,"ISBN":null,"Volume":"20","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":64660,"SerRR":"Helgoländer Wissenschaftliche Meeresuntersuchungen. 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