TY - JOUR
T1 - Seawater acclimation of diploid and triploid brook charr (Salvelinus fontinalis), diploid Arctic charr (Salvelinus alpinus), and their diploid and triploid hybrids
AU - Dumas, S.
AU - Audet, C.
AU - Blanc, J. M.
AU - De La Noüe, J.
PY - 1995/2
Y1 - 1995/2
N2 - Seawater acclimation of diploid (FF) and triploid (F2F) brook charr Salvelinus fontinalis, diploid (AA) Arctic charr Salvelinus alpinus, and diploid (FA) and triploid (F2A) hybrids between female brook charr and male Arctic charr was investigated. Triploidization of brook charr and the hybrid did not have any effect on the acclimation. Seawater acclimation of the hybrid was achieved during the experimental period and was comparable to that observed in brook charr. Acclimation could not be ascertained in Arctic charr since the level of cortisol, a stress indicator, was still high at the end of the experiment. No relationship between either length or condition factors and plasma osmolality was observed. Elevated plasma cortisol concentrations in Arctic charr and in diploid or triploid hybrids, both in fresh water and sea water, indicate more favourable rearing conditions for brook charr.
AB - Seawater acclimation of diploid (FF) and triploid (F2F) brook charr Salvelinus fontinalis, diploid (AA) Arctic charr Salvelinus alpinus, and diploid (FA) and triploid (F2A) hybrids between female brook charr and male Arctic charr was investigated. Triploidization of brook charr and the hybrid did not have any effect on the acclimation. Seawater acclimation of the hybrid was achieved during the experimental period and was comparable to that observed in brook charr. Acclimation could not be ascertained in Arctic charr since the level of cortisol, a stress indicator, was still high at the end of the experiment. No relationship between either length or condition factors and plasma osmolality was observed. Elevated plasma cortisol concentrations in Arctic charr and in diploid or triploid hybrids, both in fresh water and sea water, indicate more favourable rearing conditions for brook charr.
KW - Salvelinus alpinus
KW - Salvelinus fontinalis
KW - charr
KW - hybridization
KW - seawater acclimation
KW - triploidization
UR - http://www.scopus.com/inward/record.url?scp=0029107982&partnerID=8YFLogxK
U2 - 10.1111/j.1095-8649.1995.tb05971.x
DO - 10.1111/j.1095-8649.1995.tb05971.x
M3 - Artículo
SN - 0022-1112
VL - 46
SP - 302
EP - 316
JO - Journal of Fish Biology
JF - Journal of Fish Biology
IS - 2
ER -