Náttúrufræðingurinn - 1998, Blaðsíða 104

og Ijóst að ýtrustu varúðar þarf að gæta ef
kemur til lagningar nýrra vega á svæðinu
eða ef breikka þarf núverandi Keflavíkur-
veg.
HEIMILDIR
Agnar Ingólfsson 1975. Lífríki fjörunnar. Rit
Landverndar 4. Votlendi. Bls. 61-99.
Agnar Ingólfsson 1977. Distribution and habitat
preferences of some intertidal amphipods in
Iceland. Acta Naturalia Islandica 25.
Agnar Ingólfsson 1992. The origin of the rocky
shore fauna of Iceland and the Canadian
Maritimes. Journal of Biogeography 19. 705-
712.
Agnar Ingólfsson 1994. Species assemblages in
saltmarsh ponds in western Iceland in relation
to environmental variables. Estuarine, Coastal
and Shelf Science 38. 235-248.
Agnar Ingolfsson, Bergthor Johannsson &
Hördur Kristinsson 1989. Zonation of plants
in a fresh-water tidal environment. Scientia
Marina 53. 343-347.
Brynjólfur Eyjólfsson, Gísli Einarsson, Guð-
mundur Harðarsson, íris Hvanndal, Hlynur
Sigurgíslason & Þórey Ingimundardóttir 1997.
Samanburður á fjölbreytileika fánu Brunn-
tjarnar og Lóna. Handrit. 15 bls.
Gísli MárGíslason 1981. Distribution and habi-
tat preferences of Icelandic Trichoptera. Proc.
of the 3rd Int. Symp. on Trichoptera. Series
Entomologica 20. 99-109.
Haukur Jóhannesson & Sigmundur Einarsson
1998. Hraun í nágrenni Straumsvíkur. Nátt-
úrufræðingurinn 67 (3-4).
Jóhannes Sturlaugsson, Ingi Rúnar Jónsson,
Stefán Eiríkur Stefánsson & Sigurður Guð-
jónsson 1998. Dvergbleikja á mótum fersk-
vatns og sjávar. Náttúrufræðingurinn 67 (3-
4).
SUMMARY
ThE BIOTA OF PONDS NEAR STRAUMSVÍK,
SOUTHWESTERN lCELAND
An account is given of the biota of some ponds
showing tidal fluctuations near Straumsvfk,
southwestern Iceland. Some of the ponds show
the unique combination of pronounced tidal fluc-
tuations on one hand and fresh water without
any admixture of salts from the sea on the other.
The clear zonation of plants on lava blocks at
one of these ponds is described and compared
and contrasted with zonation ol' algae as seen on
the seashore. All of the plant species found in
the intertidal ol'this pond also occur under other
more normal conditions, as is to be expected due
to the young age of the pond, being no more than
5-7 thousand years old. Some ponds in the area
show some admixture of seawater and are then
inhabited by such brackish water species as the
amphipod Gammarus duebeni. Much remains
to be known about the biota of these very inter-
esting ponds at Straumsvík.
PÓSTFANG HÖFUNDAR/AuTHOR's ADDRESS
Agnar Ingólfsson
Líffræðistofnun Háskólans
Grensásvegi 12
IS-108Reykjavík
Netfang höfundar/E-mail
agnaring@rhi.hi.is
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