Kinetics of the development of imposex in transplanted adult dogwhelks, Nucella lapillus

Authors
Citation
Im. Davies, Kinetics of the development of imposex in transplanted adult dogwhelks, Nucella lapillus, ENVIR POLLU, 107(3), 2000, pp. 445-449
Citations number
18
Categorie Soggetti
Environment/Ecology
Journal title
ENVIRONMENTAL POLLUTION
ISSN journal
02697491 → ACNP
Volume
107
Issue
3
Year of publication
2000
Pages
445 - 449
Database
ISI
SICI code
0269-7491(2000)107:3<445:KOTDOI>2.0.ZU;2-R
Abstract
The degree of imposer in dogwhelks, Nucella lapillus (L.), is normally desc ribed in terms of a series of vas deferens development stages. The progress ion of adult female dogwhelks through vas deferens stages 0-5 in response t o exposure to tributyltin at 2-128 ng/l has been modelled on the basis of f irst-order kinetics. Modelling indicated that the half-lives of stages 0, 1 and 2 were from 1-8 weeks and that the half-life of stage 3 was approximat ely twice as long. The hall-life of stage 4 was 90-120 weeks. Half-lives de creased with increasing exposure concentration. The implications of these d ata for field surveys and transplantation experiments are discussed. Transp lanted dogwhelks will not rapidly attain equilibrium with environmental con ditions. Experiments will require careful control of exposure period, and p referable supporting chemical data. Crown Copyright (C) 2000 Published by E lsevier Science Ltd. All rights reserved.