The effect of copper on the embryonic development and hatching of Sepia officinalis L.
The influence of copper on embryonic development and hatching of Sepia offinalis was investigated. Copper exerts a profound effect on both hatching stage and time-to-hatching. At high copper concentrations (50-200 ppb Cu2+), the embryos hatch earlier than the controls but have a lower survival potential. No external morphological malformations were found. Whereas copper does not accumulate in the embryo or in the vitellus, it is absorbed by the envelope and/or the chorion.
Paulij
W P
WP
Zoology Department I, Catholic University, Toernooiveld, Nijmegen, The Netherlands.
Zurburg
W
W
Denucé
J M
JM
van Hannen
E J
EJ
D000818:Animals; D003300:Copper / Q000633:toxicity*; D004625:Embryo, Nonmammalian / Q000187:drug effects / Q000502:physiology; D008974:Mollusca / Q000196:embryology / Q000502:physiology*
D003300:Copper