Ocean Migration and Distribution of Fin-Marked Coho Salmon

1966 ◽  
Vol 23 (7) ◽  
pp. 1043-1061 ◽  
Author(s):  
George H. Allen
Keyword(s):  
Pacific Ocean ◽  
Coho Salmon ◽  
Puget Sound ◽  
Commercial Fisheries ◽  
Pronounced Difference ◽  
The Pacific ◽  
The Pacific Ocean

Migration, distribution, and movement of five groups of fin-marked coho salmon of the 1950 brood planted into Puget Sound, Washington, in 1952, were followed during 1952 and 1953 by a study of 847 recoveries of marked salmon taken in sport and commercial fisheries in the Pacific Ocean, Puget Sound, and closely adjoining regions.Differences in migration, distribution, and movements of the five groups of salmon were correlated with the time, place, and method of planting.The most pronounced difference in behavior was shown by salmon receiving an extra 2 months of rearing in the hatchery as compared with other groups. This group was marked by removal of the dorsal and right ventral fins. A lag in average time of migration to points in the ocean and a tendency to migrate lesser distances while in the ocean characterized the behavior of these fish. This lag in time of migration as indicated by patterns of recovery of marked salmon from sport and commercial fisheries was confirmed by an actual lag in time of return to the point of release.In migrating from off the coast of Washington to Puget Sound, the salmon moved at an estimated rate of 5–7 nautical miles per day.

Mitochondrial and microsatellite DNA analyses of harbour seal population structure in the northeast Pacific Ocean

1999 ◽  
Vol 77 (6) ◽  
pp. 930-943 ◽  
Author(s):  
Theresa M Burg ◽  
Andrew W Trites ◽  
Michael J Smith
Keyword(s):  
British Columbia ◽  
Population Structure ◽  
Pacific Ocean ◽  
Nuclear Dna ◽  
Puget Sound ◽  
Mitochondrial Control Region ◽  
Single Individual ◽  
The Pacific ◽  
Harbour Seals ◽  
The Pacific Ocean

The genetic diversity and population structure of harbour seals (Phoca vitulina richardsi) along the coasts of British Columbia and parts of Alaska were investigated using both mitochondrial DNA (mtDNA) and nuclear DNA. A 475-bp fragment of the mitochondrial control region was amplified and sequenced from 128 animals. Sixty variable sites defined 72 mtDNA haplotypes with pairwise nucleotide differences as high as 5%. Fifty-eight haplotypes were represented by a single individual, and shared haplotypes were generally restricted to a small geographic range. Phylogenetic reconstruction revealed two distinct populations comprising (i) southern British Columbia and (ii) northern British Columbia - southeast Alaska. Furthermore, the order of the clades suggests that the Pacific Ocean was colonized at least twice, 670 000 and 380 000 years ago. Haplotypes from the first invasion are restricted to a small number of seals around southern Vancouver Island. Analyses of five polymorphic microsatellite loci showed significant differences between the populations of southern British Columbia and northern British Columbia - Alaska. Migration rates for males based on microsatellite data (3-22 seals/generation) were higher than those obtained for females from mtDNA data (0.3 females/generation). Combining all the DNA data collected to date suggests that there are at least three populations of harbour seals in the Pacific composed of seals from (i) Japan, Russia, Alaska, and northern British Columbia, (ii) southern British Columbia and Puget Sound, Washington, and (iii) the outer coasts of Washington, Oregon, and California. The data do not support the existence of two subspecies of harbour seals in the Pacific Ocean.

scholarly journals A Rare Northern Pacific Item

1927 ◽  
Vol 1 (6) ◽  
pp. 6-7
Keyword(s):  
Pacific Ocean ◽  
Lake Superior ◽  
Puget Sound ◽  
Public Library ◽  
Partial Report ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Northern Pacific ◽  
Made In

A Northern Pacific item of great rarity and value will be added to the Library files when the business collection of the Boston Public Library comes into the keeping of the Business Library. This pamphlet, a “Partial report… of a reconnoissance made in the summer of 1869, between Lake Superior and the Pacific Ocean, by Thos. Hawley Canfield, general agent of the company, accompanied with notes on Puget Sound by Samuel Wilkeson, Esq., the historian of the expedition,” recently changed hands for $150 at an auction.

On the Pacific Ocean regime shift

2001 ◽  
Vol 28 (19) ◽  
pp. 3721-3724
Author(s):  
Cathy Stephens
Keyword(s):  
Pacific Ocean ◽  
Regime Shift ◽  
The Pacific ◽  
The Pacific Ocean
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