Open AccessDevelopmental anomalies in ide (Leuciscus idus L.) larvae caused by copper and cadmium
Author(s) -
Katarzyna Ługowska,
Elżbieta Kondera
Publication year - 2020
Publication title -
roczniki naukowe polskiego towarzystwa zootechnicznego
Language(s) - English
Resource type - Journals
eISSN - 2719-3934
pISSN - 1733-7305
DOI - 10.5604/01.3001.0014.3996
Subject(s) - cadmium , yolk sac , hatching , larva , embryogenesis , zoology , copper , embryo , biology , anatomy , bioindicator , chemistry , andrology , yolk , toxicology , ecology , fishery , medicine , organic chemistry
Ide embryos were incubated in 0.1 mg dm 3 of Cu or Cd or in clean tap water (control). Both metals significantly decreased swelling of eggs. They reduced the rate of embryonic development and the hatching rate. Six types of body malformations were found in newly hatched larvae: spine curvature, C-shaped body, head deformation, yolk sac deformation, heart oedema, and reduced body length. Only the first two types of deformations were observed in the control, while more severe malformations were found following Cu and Cd exposure. Copper exerted a detrimental effect mainly during embryogenesis (egg swelling and rate of development), while the toxic effects of cadmium were more significant in newly hatched larvae. Larval body deformities may be used as a bioindicator of water pollution with heavy metals.