Fróðskaparrit - 31.12.2000, Page 89

NØRINGIN HJA TOSKINUM A LANDGRUNNINUM:
GÝTINGARØKI, EGGSPJAÐING OG FØÐIN HJA LARVUNUM
93
North
West East
Fig. 3. Length distribution ofmature cod in February - March 1995 and 1999.
Mynd 3. Longdarspjaðing av búnum toski í februar-mars 1995-1999.
Table 2. Mean length (cm) and standard deviation
of mature cod during the spawning season in 1995
and 1999 in three main regions (Fig. 3) on the
Faroe Shelf. The cod were caught between 24
February and 21 March in 1995, and 26 February
and 20 March in 1999.
Talva 2. Miðallongdir (cm) og standardfrávik á
búnum toski í gýtingartíðini í 1995 og 1999 í
teimum trimum økjunum, sum víst eru á mynd 3.
Toskurin varð fingin í tíðarskeiðunum 24. februar-
21. mars 1995 og 26. februar-20. mars 1999.
Mean length (cm) St. dev. Number examined
1995
North 71.8 10.5 4,926
West 69.7 10.7 1,257
East 60.2 7.2 915
1999
North 65.0 8.5 2,344
West 63.9 7.5 2,447
East 62.8 9.8 182
Hydrography in April 1995 and 1999
In mid-April 1995, the temperature on the
shelf and slope was around 6.5°C. It
ranged between 5.9°C and 7.2°C, with the
lowest temperature at the shallowest sta-
tions and the highest temperature offshore,
to the west of the Faroes. In late April
1999, the temperature hovered mostly at
7.0°C, ranging between 6.4 and 7.8°C. As
a result of precipitation and shallow bottom
depths, the shelf water has a slightly lower
salinity than the surrounding oceanic water.
An approximate position of the tidal front
can be determined by this variance in the
salinity gradient. The station grid covered
a larger part of the shelf in 1999 than in
1995 and, therefore, the information about