Fróðskaparrit - 01.01.2006, Page 147

STAK.1R SJÓBJØLGAR (TUNICATA, ASCIDIACEA
OG SORBERACEA) VIÐ FØROYAR
145
Figure 15. Styela atlantica attached to the coral
Lophelia pertusa (from Liitzen, 1967).
BlOFAR stations (number of individuals in parentheses):
604(1); 1664(1).
HIOFAR area: Western slope of Sandoy Bank (of coast
on the plateau east of the islands (61 “50 'N ;05°53' W))
(Fig. 27).
BlOFAR depth range: 15 and 260 m.
BlOFAR temperaturc: Estimatcd to 7.3 °C.
BlOFAR water mass: AW (Westerberg, 1990); EIW
(Hansen and Østerhus, 2000).
North Atlantic/Nordic Seas distribution: Hjeltefjord ncar
Bergen in Norway; Skagerak; northem North Amer-
ica (Millar, 1966).
General distribution: It is a strictly boreal species, oc-
curring in all four northern borcal zoogeographic re-
gions, i.e., it is amphi Atlantic and amphi Pacific.
General depth range: From 15 m (present study) to 750
m (Millar, 1966).
Remarks: S. atlantica is a rare species and the BIOFAR
records are the first within the Faroese EEZ. Because
of its rarity, it might liave a larger distribution area
than known at present; apparent absence from the
Arctic could, e.g., result from low sampling effort.
Styelu coriacea (Alder and Hancock, 1848)
Gooddescription: Hartmeyer, 1923:220-234; VanName,
1945; Millar, 1966: 65, fig. 41.
Frevious records: Danish mail-ship 1878?: Sandavágur
9-36 m (identification by Steenstrup. Identified by
Figure 16. Styela coriacea (from Liitzen, 1967).
Traustedt (1880) as S. rustica) (Hartmeyer, 1923).
“Diana” 1884?í Trongisvágur (identification by
Fjeldstrup in 1887, (Hartmeyer, 1923)). Sampled
1897 or earlier: Skálaijørður 7-18 m (identification
by H. Jónsson in 1897) (Hartmeyer, 1923). “Diana "
1898?: Vágsfjørður identified by H. Jónsson 1898
(Hartmeyer, 1923). “Thor” 1899:BetweenSlongand
Eystnes 180 m, identified by Th. Mortensen (Hart-
meyer, 1912). “MichaelSars” 1902: WyvilleThom-
son Ridge 426 m (60”23'N;8°55'W), east of Munk-
agrunninum 290 m (61°10'N;5°46'W) (Bjerkan,
1905). “Margrethe”or “Thor” 1913?: Trongisvágur
0-4 m (identification by Strubberg in 1913) (Hart-
meyer, 1923). “Dana" 1927: Vestmannasund 45 m;
Ørðavík; Trongisvágur, between Pladen and Tjal-
davíkshólm, about 20 m. "Hvidbjørnen ”1931?: East
of Nólsoy 75 m (62°2'N;6°29'W); east of Sandoy
Bank 229 m (61l,46'N;5°05'W) (Thompson, 1931).
BIOFAR stations (numberofindividuals in parentheses):
156(2); 486(1); 589(2); 1022(2); 1543(2); 1605(2);
1612(10); 1615(6); 1620(1); 1628(1); 1659(10);
1663(1); 1664(29); 1665(5).
BIOFAR area: Scattered coastal and off shore records
on the plateau east of the islands; one record from
thc Bill Bailey Bank (Fig. 17).
BIOFAR depth range: 5-272 m.
BIOFAR temperatures: Estimated range 7.0 to 8.4 °C.
BIOFAR water mass: AW.
North Atlantic/Nordic Seas distribution: Svalbard; coast
of Norway; Kattegat; Sound; Belt Sea; Baltic to Bom-
holm; North Sea; northern coast of France; coasts of
Grcat Britain; coasts of Ircland; Shctland; Faroes; Ice-
land; coasts of Greenland; northern North America
(Millar, 1966).
General distribution: S. coriacea is widely distributed in