RADIOACTIVE STRONTIUM (SR-85) IN MARKING NEWLY-HATCHED PIKE AND SUCCESS OF STOCKING

Authors
VUORINEN PJ NYBERG K LEHTONEN H
Citation
Pj. Vuorinen et al., RADIOACTIVE STRONTIUM (SR-85) IN MARKING NEWLY-HATCHED PIKE AND SUCCESS OF STOCKING, Journal of Fish Biology, 52(2), 1998, pp. 268-280
Citations number
29
Categorie Soggetti
Marine & Freshwater Biology
Journal title
Journal of Fish Biology → ACNP
ISSN journal
00221112
Volume
52
Issue
2
Year of publication
1998
Pages
268 - 280
Database
ISI
SICI code
0022-1112(1998)52:2<268:RS(IMN>2.0.ZU;2-I
Abstract
Immersion of newly hatched pike fry in an aqueous solution of 1.85 MBq ml(-1) Sr-85 did not affect their growth or survival over 3 weeks. Ca nnibal pike fry retained only 1.2-3.3% of the Sr-85 from their labelle d prey. Newly hatched Sr-85-marked fry stocked into two lakes in 3 yea rs were distinguishable from wild fish 4-6 weeks later. Stocked and wi ld fry grew equally well, and stocked pike survived best where density of wild pike was highest. There was no evidence of increase in densit y as a result of stocking. (C) 1998 The Fisheries Society of the Briti sh Isles.