Fróðskaparrit - 01.01.2004, Side 280

278 THE gametogenic cycle and spawning in mytilus edulis in the faroe islands
Mytilus edulis populations may adapt
to develop gonads and spawn at differ-
ent temperatures at different locations but
there can also be a local variation and even
year to year variations within a population
(Lowe et al., 1982). The present study un-
derlines that generalizations about pattern
of the gametogenic cycle and spawning in
populations in the North Atlantic are diffi-
cult.
Acknowledgements
We thank Halldóra Skarpheðinsdóttir and Elena Guijarro
Garcia at the Marine Research Institute in Reykjavík for
their assistance in the laboratory.
References
Barkati, S. 1990. Reproduction of the mussel Mytilus
edulis L. from Lindáspollen, western Norway.
Oebalia I6(N.S.): 1-14.
Bayne, B.L. 1975. Reproduction in bivalve molluscs
under environmental stress. In: Vernberg, F.J. (ed.).
Physiologiqal ecology ofestuarine organisms. Univ.
S.C. Press, Columbia: 259-277.
Brousseau, D.J. 1983. Aspects of reproduction of the
blue mussel, Mytilus edulis (Pelecypoda: Mytilida)
in Long Islands Sound. Fishery Bulletin 81: 733-
739.
Chipperfield, P.N.J. 1953. Observations on the breeding
and settlement of Mytilus edulis L. in British waters.
Journal oftlie Marine Biological Association ofthe
U.K. 32: 449-476.
Emmett, B., Thompson, K. and Popham, J.D. 1987.
The reproductive and energy storage cycles of two
populations of Mytilus edulis (Linne) from British
Columbia. Journal ofShellfish Research 6: 29-36.
Gaard, E. 1986. En undersøgelse af mulighederne for at
dyrke blámuslinger pá reb, udsat i en færøsk fjord.
MSc thesis at the Odense University, Denmark. July
1986. 156 pp.
Gaard, E. 2000. Seasonal abundance and development of
Calanus finmarchicus in relation to phytoplankton
and hydrography on the Faroe Shelf. ICES Joumal
of Marine Science 57: 1605-1611.
Gabbott, P.A. 1983. Development of seasonal metabolic
activities in marine molluscs. In: Hochachka, P.W.
(ed.). The Mollusca. Volume 2. Environmental and
Biochemical Physiology. Academic Press, N.Y.:
165-217.
Gray, A.P., Seed, R. and Richardson, C.A. 1997.
Reproduction and growth of Mytilus edulis chilensins
from the Falkland Islands. Scientia Marina 61: 39-
48.
Hines, A.H. 1979. Effects of thermal discharge on
reproductive cycles in Mytilus edulis and Mytilus
californianus (Mollusca, Bivalvia). Fishery Bulletin
77: 498-503.
Kautsky, N. 1982. Quantitative studies on gonad cycle,
fecundity, reproductiv'e output and recruitment in a
Baltic Mytilus edulis population. Marine Biology
68: 143-160.
Kinne, O. 1970. Temperature. In: Kinne, O. (ed.).
Marine ecology, Volume I, John Wiley and Sons,
N.Y.: 321-616.’
Lowe, D.M., Moore, M.M. and Bayne, B.L. 1982.
Aspects of gametogenesis in the marine mussel
Mytilus edulis L. Journal of the Marine Biological
Association of the U.K. 62: 133-145.
Newell, R.I.E., Hilbish, T.J., Koehn, R.K. and Newell,
C. J. 1982. Temporal variation in the reproductive
cycle of Mytilus edulis L. from localities on the east
coast of the United States. Biological Bulletin 162:
299-310.
Pieters, H., Kluytmans, J.H., Zurberg, W. and Zandee,
D. I. 1979. The influence of seasonal changes on
energy metabolism in Mytilus edulis (L.). I. Growth
rate and biochemical composition in relation to
environmental parameters and spawning. In: Naylor,
E. and Hartnoll, R.H. (eds). Cyclic phenomena in
marine plants and animals. New York: Pergamon
Press: 285-293.
Reis-Henriques, M.A. and Coimbra, J. 1990. Variations
in the levels of progesterone in Mytilus edulis
during the annual reproductive cycle. Comparative
Biochemistry and Physiology 94: 343-348.
Seed, R. 1969. The ecology of Mytilus edulis L. on
exposed rocky shores. I. Breeding and settlement.
Oecologia (Berl.) 3: 277-316.
Seed, R. 1976. Ecology. In: Bayne, B.L. (ed.). Marine
mussels: Their ecology and physiology, Cambridge
University Press, Cambridge: 13-65.
Seed, R. and Suchanek, T.H. 1992. Population and
community ecology of Mytilus. In: Gosling, E. (ed.).
The mussel Mytilus: Ecology, physiology, genetics
and culture, Elsevier, Amsterdam 1992: 94-108.
Sprung, M. 1983. Reproduction and fecundity of the
mussel Mytilus edulis at Helgoland (North Sea).