Ársrit Fiskifélags Íslands - 01.01.1933, Page 73

RESUME
This paper is the second report made by the Fiskifélag ís-
3ands on the investigations on fish, and these investigations were
decided upon by the Fishers’ Council of 1930. On Jan. lst 1931
I undertook my post as scientific adviser to the Association. My
work has for the most part consisted in research on cod and
herring. The cod-investigations are to a great extent a continuat-
ion of such investigations as were conducted here during the
years 1928—30 by the Kommissionen for Danmarks Fiskeri- og
Havundersogelser, under Prof. Schmidt, but Dr. Taaning has writ-
ten about the results of these investigations in: Á. Vedel Taaning:
Fluctuations in the Stock of the Cod in Icelandic Waters, Medd.
fra Komm. for Danmarks Fiskeri- og Havunders., Serie: Fiskeri,
Bd. IX, Nr. 3, Köbenhavn 1931. I have myself written about the
result of the investigations on fish by the Fiskifélag íslands for
the year 1931, in Skýrsla Fiskifélags Islands 1930—31, Reykjavík
1931, pp. 37—82. The herring-investigations though in part a con-
tinuation of the Danish investigations (cf. P. Jespersen: On the
Food of the Herring in Icelandic Waters, Medd. for Komm. for
Danmarks Fiskeri- og Havunders., Serie: Plankton, Bd. II, Nr. 3,
Köbenhavn 1932), are with regard to measurements and age-
determination of herring, quite independent.
I. The Cod-investigations. The material for determining
the age of cod was gathered in the following places: Vestmanna
Islands, South-Iceland, Keflavík and Reykjavík, South-West Ice-
land, Bolungarvik, North-West Iceland, Siglufjörður, North Ice-
land, Norðfjörður in East Iceland, and Hornafjörður in South-East
Iceland. Further material was gathered on the trawler »SkaIla-
grímur«, and the patrol boat »Þór«. The age of 5,508 fish was
determined through their otoliths, but altogether measurements were
taken of 34,564 fish. Table 1 shows how much of this material
was gathered in each place of investigation, and Table 2 how the
material was divided between the months. Each fish taken was