00511nam a2200205Ia 4500008004100000041001200041082001000053082001100063100002000074100001100094245004900105260001300154260003900167260000900206300001500215365002500230650002200255650001200277650001600289150909s9999    xx            000 0 und d  aEnglish  a574.5  bDEC/BI  aDecoursey P J    eAuthor  aBiological rhythms in the marine environment  aColumbia  bUniversity Of South Carolina Press  c1976  a283  Pages  aRs.56.60              aCircadian rhythms  aEcology  aTidal clock