IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Hormesis-stimulation of colony growth in Campanularia flexuosa (hydrozoa) by copper, cadmium and other toxicants
Stebbing, A.R.D. (1981). Hormesis-stimulation of colony growth in Campanularia flexuosa (hydrozoa) by copper, cadmium and other toxicants. Aquat. Toxicol. 1(3-4): 227-238
In: Aquatic Toxicology. Elsevier Science: Tokyo; New York; London; Amsterdam. ISSN 0166-445X, more
Peer reviewed article  

Available in  Author 

Keywords
    Cadmium; Copper; Growth; Hormesis; Metals; Hydroida [WoRMS]; Marine

Author  Top 
  • Stebbing, A.R.D.

Abstract
    It is shown experimentally that subinhibitory concentrations of a number of toxic, or other agents that are typically inhibitory (copper, cadmium, tributyl tin fluoride, reduced salinity), may stimulate the growth of colonies of the hydroid Campanularia flexuosa, exhibiting a phenomenon known as hormesis. It is suggested that the stimulation of growth is not due to the specific properties of the different toxicants, but to an adaptive response of the hydroid to the inhibitory effect that they have in common. Growth is regulated by a control mechanism and it is proposed that the increased growth is a consequence of overcorrections to low levels of an inhibitory challenge. Examination of the toxicological literature shows that hormesis is a more common occurrence that is generally supposed, and it is suggested that the explanation given here might apply in other cases of hormesis.

All data in IMIS is subject to the VLIZ privacy policy Top | Author