Náttúrufræðingurinn - 1985, Side 33

sjávarhættir 2. - Menningarsjóður,
Reykjavík: 516 bls.
Pitcher, K.W. & D.C. McAllister. 1981.
Movements and Haul-out Behaviour of
Radio-tagged Harbor Seals Phoca vitu-
lina. - Canadian Field Naturalist 95,3:
292-297.
Schneider, D.C. & P.M. Payne. 1983. Fac-
tors affecting haul-out of harbor seals
at a site in southeastern Massachusetts.
— J.Mamm. 64,3: 518—520.
Sjávarföll við ísland. 1980. - Sjómælingar
fslands.
Sjávarföl! við ísland. 1981. — Sjómælingar
íslands.
Slater, L.M. & H. Markowitz. 1983.
Spring population trends in Poca vitu-
lina richardi in two central California
coastal areas. — Calif. Fish and Game
69,4: 217-226.
Sólmundur T. Einarsson. 1978. Selarann-
sóknir og selveiðar. - Náttúrufræðing-
urinn 48,3-4: 129-140.
Sullivan R.M. 1980. Seasonal occurence
and haul-out use in pinnipeds along
Humbolt county, California. — J.
Mamm. 61,4: 754—760.
Summers, C.F., P.J. Warner, R.G.W.
Nairn, M.G. Curry & J. Flynn. 1980.
An assessment of the status of the
common seal Phoca vitulina vitulina in
Ireland. - Biol. Conserv. 17: 115-123.
Summers, C.F. & M.D. Mountford. 1975.
Counting the Common Seal. - Nature
253: 670-671.
SUMMARY
Haul-out behaviour of
common seal
(Phoca vitulina L.)
on selected hauling-out sites
at the coast of Iceland
by
Erlingur Hauksson
Icelandic Fisheries Laboratories
Skúlagata 4
Reykjavík
Haul-out behaviour of common seals
(Phoca vitulina) was observed on seven
sites at the coast (Figs, 6 and 7). The
number of seals seen on land was highly
influenced by the tides (Table 1 and Fig.
8). Highest numbers of animals on land
were seen during and just after the low
tide. These results are discussed in relation
to aerial censuses of common seal. Correc-
tion factors are estimated for aerial counts,
taking into consideration the proportion
hauling-out in relation to the time of low
tide (Table 4).
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