Total marine fisheries extractions by country in the Baltic Sea

Catch ( t x 10 5 )
Catch ( t x 10 3 )
Total marine fisheries extractions by country in the Baltic Sea: 1950-present, Rossing, Booth and Zeller 49
In the 1990s and 2000s, the species composition of discards changed significantly (Figure 4). During this
time, discards of sprat increased from a total of about 5,300 t in the 1980s, to a total of about 74,500 t in
the 1990s (Table 15). Cod was second to sprat with a total of approximately 44,000 t of discards in the
1990s, closely followed by discard totals of herring, flatfishes, ‗others,‘ and salmon (Table 15).
Overall, discards of cod comprised
approximately 53% of all discards, and
flatfishes approximately 16% of the
discards of all species for the period
1950-2007. Herring (10.7%), sprat
(10.9%), salmon (0.8%) and ‗others‘
(9.3%) were all minor contributors to
discards (1950-2007).
Recreational catches
Recreational catches were estimated for
cod, herring, flatfishes and ‗others‘, but
not for sprat and salmon. From 1950-
2007, recreational catches of cod,
herring, flatfishes and ‗others‘ totaled
approximately 321,600 t (Figure 5).
These estimates added
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
1950 1960 1970 1980 1990 2000
Year
Figure 5. Total recreational catches (t) by taxa for Denmark (1950-
2007).
approximately 6% to the total Table 16. Total recreational catch (t) by decade for cod, herring, sprat,
officially reported landings by flatfishes, salmon and ‗others‘ for Denmark.
ICES for these species (1950- Common 1950- 1960- 1970- 1980- 1990- 2000-
2007). Cod made up the name 1959 1969 1979 1989 1999 2007
majority of recreational catches Cod 23,835 25,228 26,621 28,014 29,323 23,687
(1950-2007). Recreational cod Herring 9,322 9,581 9,839 10,097 10,340 8,310
catches peaked in the 1990s Flatfishes 4,741 4,827 4,913 4,999 5,080 4,075
with a total of about 29,000 t ‘Others’ 11,727 12,536 13,346 14,156 14,917 12,068
(Table 16); however, decadal
totals were fairly consistent, ranging between 23,687 t and 29,323 t (1950-2007; Table 16).
Recreational catches of ‗others‘ included garfish (Belone belone), sea trout (Salmo trutta trutta), northern
pike (Esox lucius) and a group of miscellaneous finfishes. Decadal totals of ‗others‘ remained very
consistent over the period of study (1950-2007), peaking during the 1990s (Table 16), and averaged
approximately 13,000 t∙decade -1 (1950-2007). Herring and flatfishes had less significant contributions to
the overall recreational catch (Figure 5), with averages of approximately 9,600 t and 4,800 t respectively.
Cod
Herring
Flatfish
Others
Total reconstructed catch
Our catch reconstruction from 1950 to
2007 for all species totaled an
approximately 9.6 million t, and
included reported landings from ICES
landings statistics, our adjustments to
those landings, unreported landings,
discards, and recreational catches
from 1950 to 2007 (Figure 6). Of this,
our additions of IUU (adjustments,
unreported, discards and recreational)
totaled approximately 2.8 million t,
which added approx. 41% to landings
officially reported by ICES (Figure 7;
Appendix Table A1).
Considering our estimates of IUU as
proportions of our total catch
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Unreported
Discards
Recreational
ICES + Adjustments
1950 1960 1970 1980 1990 2000
Year
Figure 6. Total reconstruction (t) for Denmark (1950-2007)
including data from ‗ICES landings statistics‘ and all aspects of
IUU: i) adjustments added to reported landings; ii) unreported
landings; iii) discards; and iv) recreational catches.