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Herring Tagging and Movements - View maps      Previous page

  • 1,594,493 herring were tagged and released between 1936 and 1991.
  • 42,770 of those tags (2.7%) were returned to the Pacific Biological Station, Nanaimo, British Columbia.

- See belly and anchor tag Technical Report #2280.

  • A coded-wire tag (CWT) program was conducted between 1999 and 2006.
  • 1,364,729 herring were tagged with CWT's and released between 1999 and 2004 (0.64% detected).

- See annual reports of CWT releases and recoveries.

Tag type:
Release years:

*Belly Tags 1936-1967

**Anchor Tags 1979-1991

***Coded Wire Tags 1999-2004

Total tags released

1,022,871 (71,385 USA tags)

571,622

1,364,729

Total tags recovered

37,329 (8 in USA)

5,441 (10 in USA)

8,759***

Total tags recovered with regional precision or better

29,112

5,335

8,759***

Total tags recovered with statistical area precision or better

12,819

5,048

8,759***

Total tags recovered with statistical area precision or better and tags at liberty > 0.8 year
(max ~ 5 yrs).

5,113

469

6,012***

Recovery years:

1936-1968

1979-1992

1999-2006

* Tag recoveries recorded only to the nearest fishing season.
** Tag recoveries recorded to the nearest day (location precision).
*** Tag recoveries recorded by examining a portion of total catch.
Some recoveries mixed between statistical areas (e.g. SA 14 & 17).

Perspective 1:   Where did they go?

  • The locations of all tag releases between 1936 and 1991, respective recoveries and straight line connectors were plotted on maps by release year using Systat and assembled into videos using Formula Graphics.

.....Select a Tag Recovery Map


Perspective 2:   Where did they come from?

  • The origins of all tagged herring recovered between 1936 and 1992 that were at liberty for at least one year were plotted on a series of maps for each recovery region (six in BC), statistical area (29 in BC) or location (several hundred in BC).
  • The degrees of straying between regions and migration fidelity within regions are shown on these maps.   Examine the rationale and basis for regional stock assessments in British Columbia.

.....Select a Tag Origin Map


Herring Tagging Studies

Herring coded-wire tag

Figure 1.   Internal 'coded wire' tags inserted from 1999 to 2004.    <<< Previous page

Herring anchor tag

Figure 2.   Plastic, external 'anchor' tags inserted from 1979 to 1991.    <<< Previous page

Herring belly tag

Figure 3.   Metallic, internal 'belly' tags inserted from 1936 to 1967.    <<< Previous page

This page is dedicated to the efforts of former, pelagic fish researchers that worked at the Pacific Biological Station for several years between 1930 and 2000.   That we may see "further than most".

J.L. Hart, W.R. Whittaker, A.L. Tester, J.L. McHugh, R.V. Boughton, J.C. Stevenson, J.H. Glover, R.G. McMynn, G.C. Pike, D.M. Furk, J.A. Lanigan, J.H. Larkman, K.A. Herlinveaux, A.G. Paul, A.E. Lazareff, R.R. Gardner, J.A. Saker, R.D. Thicke, W.E. Ricker, J.A. Bond, M. Bakich, K.J. Jackson, F. Nagasaki, W.P. Neave, G.T. Taylor, D. Pozar, O. Morgan, W.E. Barraclough, B. Wildman, A. Rigby, E.W. Stolzenberg, J.S. Rees, D.N. Outram, S.L. Kerr, R.S. Isaacson, R.D. Humphreys, F. Winters, K. Stubbington, M. Hamer, D.F. Alderdice, F.P.J. Velsen, J.R. Brett, A. Solmie, R. Kennedy, M.F. Burke, A.S. Hourston, C.E. Turner, F.H.C. Taylor, L.W. Barner, C.W. Haegele, D.C. Miller, D.M. Ware, M. Stocker, L. Hopwo, R.W. Tanasichuk, K. Cooke, J.F. Schweigert, V. Haist, L. Hamer and D.E. Hay.

Fisheries Management affiliates: L.A. Webb, R.D. Humphreys, R.W. Armstrong and D.D. Chalmers.

Staff list and PBS history         Herring migratory behaviour and life history variations