PRELIMINARY EVALUATION OF THE EFFECTS OF LONG-TERM PERIODIC SUBLETHALEXPOSURE TO HYDROGEN-SULFIDE ON THE HEALTH OF ATLANTIC SALMON (SALMO-SALAR L)

Authors
BLACK KD EZZI IA KIEMER MCB WALLACE AJ
Citation
Kd. Black et al., PRELIMINARY EVALUATION OF THE EFFECTS OF LONG-TERM PERIODIC SUBLETHALEXPOSURE TO HYDROGEN-SULFIDE ON THE HEALTH OF ATLANTIC SALMON (SALMO-SALAR L), Journal of applied ichthyology, 10(4), 1994, pp. 362-367
Citations number
14
Categorie Soggetti
Fisheries,"Marine & Freshwater Biology
Journal title
Journal of applied ichthyology → ACNP
ISSN journal
01758659
Volume
10
Issue
4
Year of publication
1994
Pages
362 - 367
Database
ISI
SICI code
0175-8659(1994)10:4<362:PEOTEO>2.0.ZU;2-D
Abstract
Atlantic salmon smelts (Salmo salar L) were exposed to periodic (6 hou rly) sub-lethal levels of hydrogen sulphide over 20 weeks. Histologica l examination of gill tissues showed that after an initial period (6 w eeks), during which the condition of the gills deteriorated, there was a gradual recovery. By the end of the experiment (20 weeks) gill tiss ues appeared normal. Fish growth was not significantly affected except during the period of maximum gill damage (6-8 weeks) when there was a small but significant decrease In growth rate with respect to the con trol group.