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

Kenny Black, Ivan Ezzi, M C B Kiemer, A J Wallace

Research output: Contribution to journalArticle

Abstract

Atlantic salmon smelts (Salmo salar L) were exposed to periodic (6 hourly) sub-lethal levels of hydrogen sulphide over 20 weeks. Histological examination of gill tissues showed that after an initial period (6 weeks), during which the condition of the gills deteriorated, there was a gradual recovery. By the end of the experiment (20 weeks) gill tissues 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 control group.
Original languageEnglish
Pages (from-to)362-367
Number of pages6
JournalJ APPL ICHTHYOL
Volume10
Issue number4
Publication statusPublished - 1994

Keywords

  • ALUMINUM
  • TROUT SALVELINUS-FONTINALIS
  • Marine & Freshwater Biology
  • Fisheries
  • ACCLIMATION
  • TIME COURSE

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