Blue-sac disease in Lake Ontario lake trout
Journal of Great Lakes Research
By: J. Symula, J. Meade, J.C. Skea, L. Cummings, J.R. Colquhoun, H.J. Dean, and J. Miccoli
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Abstract
Egg lots from individual females of Seneca strain lake trout (Salvelinus namaycush), captured from Lake Ontario and incubated at 7°–9°C, showed a very high incidence of blue-sac disease and associated mortality. Losses were shown to be female dependent. Some of the eggs were found to be infected by a myxobacterium (Cytophaga sp.) that may have been transmitted to the fry through the egg and/or sperm. This myxobacterial infection may have been related to the blue-sac disease observed in some egg lots. Incubation at 1.7°–3.0° C significantly reduced the incidence of blue-sac disease and mortality in the replicated egg lots.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Blue-sac disease in Lake Ontario lake trout |
| Series title | Journal of Great Lakes Research |
| DOI | 10.1016/S0380-1330(90)71397-4 |
| Volume | 16 |
| Issue | 1 |
| Year Published | 1990 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Leetown Science Center |
| Description | 12 p. |
| First page | 41 |
| Last page | 52 |