Contributions to Canadian Biology and Fisheries

Journal Information
ISSN : 0366-5348
Published by: Canadian Science Publishing (10.1139)
Total articles ≅ 354
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J. R. Dymond
Contributions to Canadian Biology and Fisheries, Volume 8, pp 1-12; https://doi.org/10.1139/f33-001

Abstract:
Specimens of Coregonus clupeaformis, Prosopium quadrilaterale and Leucichthys artedi from Hudson and James bays are quite similar to specimens of the same species from the Great Lakes; Prosopium shows the most divergence.Coregonus does not grow as large in salt water as in fresh water lakes of the same latitude; its rate of growth is more rapid than that of whitefish in lake Nipigon, but slower than in lake Ontario; spawning fish are usually at least seven years old.For the first two or three years Leucichthys grows more slowly, but later more rapidly than in lake Ontario or Saginaw bay, lake Michigan; it also reaches a larger size than is usual in the Great Lakes; sexual maturity is probably not attained until at least the fourth year.
Hugh P. Bell, Constance Macfarlane
Contributions to Canadian Biology and Fisheries, Volume 8, pp 63-69; https://doi.org/10.1139/f33-003

Abstract:
Sixty-eight collections of marine algae made during the summers of 1927 to 1930 inclusive gave only one hundred and seventy one identifications, comprising forty species, none peculiar to this region alone. The distribution and appearance of the plants indicate that the algal association of Hudson bay is estuarial and arctic.
E. Kuitunen-Ekbaum
Contributions to Canadian Biology and Fisheries, Volume 8, pp 71-75; https://doi.org/10.1139/f33-004

Abstract:
A new dracunculoid nematode, occurring in the sockeye salmon, Oncorhynchus nerka, of British Columbia.
E. Kuitunen-Ekbaum
Contributions to Canadian Biology and Fisheries, Volume 8, pp 99-101; https://doi.org/10.1139/f33-007

Abstract:
Feeding cysts from Citharichthys to Squalus gave tapeworms considered as G. squall.
J. V. V. Nicholls
Contributions to Canadian Biology and Fisheries, Volume 8, pp 137-143; https://doi.org/10.1139/f33-011

Abstract:
Strips of gastric muscle preserved at 0 °C., 5 °C., 10 °C., 15 °C., 20 °C., which had to be obtained under three vastly different conditions, had the same survival time. Thus at 0 °C. the survival time was 324 hours, at 5 °C. 132 hours, at 10 °C. 50 hours, at 15 °C. 38 hours, at 20 °C. 30 hours. Q10 between 20 °C. and 10 °C. equals 1.66, between 15 °C. and 5 °C. equals 3.47, and between 10 °C. and 0 °C. equals 6.48.
J. V. V. Nicholls
Contributions to Canadian Biology and Fisheries, Volume 8, pp 145-160; https://doi.org/10.1139/f33-012

Abstract:
A rise of temperature increases the rate of the spontaneous contraction of the spiral intestine and valve, rectum and colon. At any one temperature the upper end of the spiral intestine has the same rate of contraction as the lower end, whereas the upper end of the spiral valve has a higher rate than the lower end. The rectum and colon have no rapid rhythm, but give a single spasmodic contraction every half hour or so.Adrenaline, pilocarpine and acetylcholine stimulate all the above parts, though the effect of pilocarpine on the spiral valve is very indefinite. Atropine has no effect on normal contractions, but counteracts the effect of acetylcholine and pilocarpine.
W. M. Tattersall
Contributions to Canadian Biology and Fisheries, Volume 8, pp 181-205; https://doi.org/10.1139/f33-015

Abstract:
An account of a collection of Euphausiacea and Mysidacea made in the waters of British Columbia by Miss A. A. Berkeley and Mr. G. H. Wailes, with summary of all previous records, so that the paper represents a complete account of the western Canadian species of these two groups of Crustacea, with a full list of references to the literature of west American species. Five species are described and figured as new to science, viz.: Pseudomma berkeleyi, Neomysis sculpta, Neomysis pseudomacropsis, Neomysis columbiae and Proneomysis wailesi.
Armine Alley
Contributions to Canadian Biology and Fisheries, Volume 8, pp 227-236; https://doi.org/10.1139/f33-017

Abstract:
Gastric juice from an Armour pouch in a dog was collected after feeding by fistula with haddock, cod, mackerel and lobster. The first three proved to be as strong a stimulus as, and lobster a stronger stimulus than, beef for mucin, pepsin, acid and volume of secretion. All remain as long in the stomach as beef, and mackerel longer. The high fat content of the mackerel seems to decrease the pepsin, diminish the volume in the first hour, and prolong the retention of food.
B. E. Bailey
Contributions to Canadian Biology and Fisheries, Volume 8, pp 265-274; https://doi.org/10.1139/f33-021

Abstract:
The vitamin A content of liver oils of five species of salmon in the genus Oncorhynchus has been determined. The richest samples contained 40 times, and the poorest twice as much vitamin A per gram as a sample of cod liver oil stated to contain 500 A.D.M.A. units per gram. Potencies of samples were in descending order: Skeena spring, Vancouver spring and sockeye, coho, pink and chum salmon. Oil content of the livers averaged 5 per cent and percentage of liver in the fish 2 per cent. The melting point, unsaponifiable matter and iodine value of the oils have been determined.
Norman E. Gibbons
Contributions to Canadian Biology and Fisheries, Volume 8, pp 275-290; https://doi.org/10.1139/f33-022

Abstract:
A study was made of the slime and faeces of 43 fish, representing 11 marine species taken at Halifax, N.S., St. Andrews, N.B., and Woods Hole, Mass. Eighty species and varieties of bacteria were isolated, 22 from slime only, 14 from faeces only, and 44 from both slime and faeces. These have been identified as far as possible. In some cases, particularly in the genera Achromobacter and Flavobacteria, new groupings are suggested. Members of the genera Achromobacter, Micrococcus, Flavobacterium, Pseudomonas, Bacillus, Eberthella and Proteus were represented, with the first two the most prominent. This study would indicate that the flora of the slime and faeces of marine fish is quite similar.
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