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Volume 8, Number 1, January 2002

Perspective

Shipping and the Spread of Infectious Salmon Anemia in Scottish Aquaculture

Alexander G. Murray,*† Ronald J. Smith,* and Ronald M. Stagg*
*Fisheries Research Services Marine Laboratory, Aberdeen, United Kingdom; and †University of Aberdeen, Aberdeen, United Kingdom

Figure 3. Infection status of areas versus number of well-boat visits. Infection status is 0 for no infection, 1 for suspected infection, and 2 for confirmed infection. Skye and Shetland, infected by fish transferred from Loch Nevis, are shown as large hollow squares, while the unconfirmed infection at Loch Broom is shown as a large triangle-filled square. Loch Creran is shown as a cross and is excluded to prevent double counting of harvest transport voyages. Regression is 0.012 x visits, r2 = 0.66, p = 0.000004.

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Figure 3. Infection status of areas versus number of well-boat visits. Infection status is 0 for no infection, 1 for suspected infection, and 2 for confirmed infection. Skye and Shetland, infected by fish transferred from Loch Nevis, are shown as large hollow squares, while the unconfirmed infection at Loch Broom is shown as a large triangle-filled square. Loch Creran is shown as a cross and is excluded to prevent double counting of harvest transport voyages. Regression is 0.012 x visits, r2 = 0.66, p = 0.000004.
 


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