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Lūgzu palīdziet man noskaidrot, kāds dzīves ilgums ir gliemjiem, piemēram, bezzobei,lielajam dīķgliemezim,lielvāciņu gliemezim, parka vīngliemezim,raibajam vīngliemezim. Paldies
27, 2006, 11:20Juris
:-:

    Jūsu nosauktajiem gliemjiem dzīves ilgums mērāms variākos gados. Parka vīngliemezis dzīvo vidēji 12 gadus, bet var sasniegt mūža ilgumu līdz 30 gadiem.
    Kopumā Jūsu minētajām sugām mūža ilgums ir saistīts ar apstākļiem, kādos sugas dzīvo. Ja apstākļi labi un nav draudu gliemju dzīvībai, tad šīs sugas dzīvo samērā ilgi.
    23, 2007, 12:46Arturs

    Sveicināti!
    Es gribētu uzzināt, cik ilgi dzīvo vīngliemeži un austeres, un kāds sastāvs ir gliemežu čaulai?
    Paldies.
    10, 2010, 13:31Arvīds

    Dažādi, bet visbiežāk šitā:
    čaulai ārpusē krāsainā org. viela - konhiolīns.
    Iekšpusē parasti perlamutrs = Ca karbonāts.
    Starp tiem nereti visbiezākais - Ca karbonāts kalcīta veidā.
    12, 2010, 20:17TAs

    Plakanās jeb īstā austeres (Ostrea edulis) var sasniegt 15 līdz 20 gadu vecumu, bet parasti tas ir ap 6 gadiem.
    (http://www.arkive.org/native-oyster/ostrea-edulis/info.html
    http://www.issg.org/database/species/ecology.asp?si=798&fr=1&sts=&lang=EN)

    Lielā austere (Crassostrea gigas) varot sasniegt 30 gadu vecumu. Tirdzniecībai piemērotu svaru austeres sasniedz 18 līdz 30 mēnešu laikā.
    (http://en.wikipedia.org/wiki/Crassostrea_gigas
    http://ec.europa.eu/fisheries/cfp/aquaculture_processing/aquaculture/oyster_lv.htm)

    13, 2010, 8:39Zirneklītis

    Kāpēc vispār jāinteresējas par dzīves ilgumu, ja mēs labi zinām, ka dzīve vienalga nebūs bezgalīga - tā ir ierobežota dzīva organisma atrašanās šajā pasaulē. Jebkuram dzīvam organismam svarīgāk būtu zināt, kāpēc tas atrodas šeit un ko darīs, kad dzīve beigsies?
    P.S. Un, kad var sasniegt tirdzniecībai atbilstošu svaru - tad nu gan ir tiešām svarīgi.
    15, 2010, 18:38Filosofs
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