Total marine fisheries extractions by country in the Baltic Sea

Catch ( t x 10 5 )
Catch (t x 10 5 )
Total marine fisheries extractions by country in the Baltic Sea: 1950-present, Rossing, Booth and Zeller 175
added approximately 35% to landings
reported by ICES between 1950 and 2007
(Figure 6). The majority of our additions
of IUU occurred after 1990 (Figure 6),
when Poland was no longer part of the
former eastern bloc, and became subject
to the policies of the EU and a market
economy. During this time (1990-2007),
our additions of IUU added almost 2
million tonnes to reported landings
(Figure 6). Prior to 1990, our
reconstruction accounted for an additional
541,000 t over the period from 1950 to
1989. During this period (1950-1989), our
IUU estimates were mainly comprised of
discards as well as adjustments to missing
reported landings between 1950 and 1954
for all species.
Considering previously reported landings
and our additional estimates of IUU, each
component comprised the following
proportion of our total catch
reconstruction (1950-2007): reported data
from ICES landings statistics, 74%;
adjustments, 3.5%; unreported landings,
17.3%; discards, 5.1%, and recreational
catches, 0.05% (Figure 7; Table 14). Thus,
unreported landings and discards were
the most significant additions of IUU to
reported landings. As mentioned above,
cod was found to have the highest
unreported
landings and
discards (1950-
2007). Flatfishes
were found to have
the most significant
rate of discarding
since the 1990s, and
greatest volume of
discards in the most
recent decade
(2000-2007). In general, reported landings peaked in the 1970s with about 1.7 million tonnes (Table 14),
while our total catch reconstruction peaked in the 1990s with approximately 2.3 million tonnes (Table 14).
The majority of this difference was made up by unreported landings (Figure 7), which totaled
approximately 1.65 million tonnes between 1990 and 2007 (Figure 7; Table 14).
Overall, cod was the
dominant catch throughout
the study period, totaling
approximately 3,800,000 t
between 1950 and 2007
(Table 15). Herring and
sprat were close seconds
with totals of approximately
2.9 and 2.2 million tonnes
respectively (Table 15).
Flatfishes and ‗others‘
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1950 1960 1970 1980 1990 2000
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Total reconstructed catch
Discards
Unreported
ICES landings + Adjustments
ICES
Year
Figure 6. Total reconstructed catch (t) of cod, herring, sprat,
flatfishes and ‗others‘ contrasted with officially reported data
from ICES landings statistics (1950-2007).
0.0
1950 1960 1970 1980 1990 2000
Year
Figure 7. Total reconstructed catch for Poland by component
from 1950-2007.
Table 14. Total reconstructed catches (t) for cod, herring, sprat, flatfishes, salmon, and
‗others‘ in Poland, by IUU component (1950-2007).
Component
1950- 1960- 1970- 1980- 1990- 2000-
1959 1969 1979 1989 1999 2007
ICES landings 347,138 956,728 1,737,539 1,715,477 1,242,845 1,075,836
Adjustments 320,181 0 -3,089 5,217 3,966 1,810
Unreported landings 0 0 0 0 932,989 715,764
Discards 26,530 40,282 76,690 74,995 133,219 137,771
Recreational 0 0 0 37 532 3,942
Table 15. Total reconstructed catches (t) for cod, herring, sprat, flatfishes, salmon,
and ‗others‘ in Poland (1950-2007).
Common
name
1950-
1959
1960-
1969
1970-
1979
1980-
1989
1990-
1999
2000-
2007
Cod 489,685 510,991 631,723 741,443 826,218 562,161
Herring 121,698 272,266 606,024 747,755 694,887 466,845
Sprat 47,337 144,701 434,867 200,380 641,316 743,617
Flatfishes 10,992 27,996 45,001 38,823 100,193 119,364
Salmon 1,694 2,007 907 2,222 3,504 1,973
'Others' 22,443 39,049 92,619 65,105 47,433 41,164