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The strontium content of roe collected from spawning brown trout Salmo trutta L. reflects recent otolith microchemistry
Author(s) -
Waite E. M.,
Closs G. P.,
Kim J.,
Barry B.,
Markwitz A.,
Fitzpatrick R.
Publication year - 2008
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2008.01842.x
Subject(s) - salmo , brown trout , otolith , biology , fish migration , fishery , strontium , estuary , habitat , trout , salmonidae , fish <actinopterygii> , ecology , physics , nuclear physics
The relationship between the strontium content of the outer layers of otoliths (an indication of recent marine, estuarine or riverine habitat use) and the strontium content of roe in ripe female brown trout Salmo trutta was examined in fish collected from the Pomahaka River and the lower reaches of the Clutha River, South Island, New Zealand. A close relationship was found between the strontium content of roe and the outer layers of otoliths. This finding suggests that spawned eggs collected from redds could potentially be used to track the extent of upstream spawning migrations by anadromous brown trout.