Fróðskaparrit - 01.01.2006, Blaðsíða 135

STAKIR SJÓBJØLGAR (TUNICATA, ASCIDIACEA
OG SORBERACEA) VIÐ FØROYAR
133
Gear Stations Solitaiy ascidians records
Biofar 1 Biofar 2 Biofar 1 Biofar 2
No. % No. %
Anclior drcdge (heavy) - 1 - - none 0
Bottom trawl (Alfredo) 3 - none 0 - -
Bottom trawl (shrimp) 29 - 3 10.3 - -
‘Sneli’ sledge 164 13 18 11.0 2 15.4
Grab 211 3 2 0.9 none 0
Hand sampling - 52 - - none 0
Meiofauna dredge 17 - ? ? -
Ockelmann-sledge - 6 - - 1 16.7
Scallop dredge 21 - 7 33.3 - -
Rothlisberg-Pearcy sledge 75 - 19 25.3 - -
Scuba dive (hand plucked) - 436 - - 75 17.2
Scuba dive (photo) - 6 - - none 0
Triangular dredge (heavy) 212 44 45 21.2 none 0
Triangular dredge (medium) 1 86 none 0 49 57.0
Triangular dredge (light) 11 - 4 36.4 - -
Underwater camera 29 - ? ? - -
van Veen grab 4 2 none 0 none 0
Total 777 649 98 12.6 127 19.6
Ttible I. Number of stations, gear used, and number of solitary ascidian records in the BIOFAR programme.
Thus, there is a time lag of sixty years be-
tween the BIOFAR programme and any for-
IT>er record of ascidians in the Faroese area.
The BIOFAR sampling was accomplished
the years 1987-2000 and the cruises were
carried out by the research vessels “Mag-
nus Heinason” (Faroes), “Hákon Mosby”
(Norway), and “Valdivia” (Germany).
Above, I have emphasized the ascidian
records throughout the history of marine bi-
°'ogical investigations of tbe Faroe Islands.
h°r a general overview, I refer the reader to
Tendal and Bruntse (2001) and Sparck
(1928).
The BIOFAR programme
After 60 years without any Faroese marine
biological investigation, a need to bring up
to date the old knowledge and fill out the
grey areas was appropriate.
The sampling was performed in two
stages. BIOFAR I focused beyond the 100
meter depth curve and lasted from 16 July
1987, until 11 May 1993. Afterthe comple-