Year of
estimate |
|
Herring biomass,
natural mortality (103 mt) |
1991
|
|
90.183
|
1992
|
|
138.911
|
1993
|
|
205.015
|
1994
|
|
228.705
|
1995
|
|
396.884
|
1996
|
|
521.719
|
1997
|
|
672.555
|