Population structure of copper rockfish (Sebastes caurinus) reflects postglacial colonization and contemporary patterns of larval dispersal

2002 ◽  
Vol 59 (8) ◽  
pp. 1374-1384 ◽  
Author(s):  
Vincent P Buonaccorsi ◽  
Carol A Kimbrell ◽  
Eric A Lynn ◽  
Russell D Vetter
Keyword(s):  
Puget Sound ◽  
Geographic Distance ◽  
Allelic Diversity ◽  
Population Subdivision ◽  
Rocky Reef ◽  
Inland Waterways ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Juvenile Stages ◽  
Sebastes Caurinus

The copper rockfish (Sebastes caurinus) is a benthic, nonmigratory, rocky reef species with pelagic larval and juvenile stages lasting several months. Adults are commonly distributed in temperate coastal waters of the Pacific Ocean from British Columbia to southern California, including the inland waterways of Puget Sound, Washington, a semi-enclosed fjord system of known postglacial origin. Here, we report the distribution of genetic variation at six microsatellite DNA loci from six locations throughout the species' range. Among four coastal samples, significant population subdivision was detected (FST = 0.007), and a significant correlation between genetic and geographic distance was observed. Divergence was large and significant between Puget Sound proper and coastal samples (FST = 0.087). A sample taken only 100 km north of Puget Sound (the Canadian Gulf Islands) was also highly divergent from Puget Sound and coastal samples and was genetically intermediate between the two. The Puget Sound sample also displayed significantly lower allelic diversity and a more substantial presence of private alleles. The patterns of genetic divergence and diversity are most consistent with a historical colonization followed by limited oceanographic exchange among geographically proximate locations.

“An Outlet to the Western Sea”: Puget Sound, Terraqueous Mobility, and Northern Pacific Railroad’s Pursuit of Trade with Asia, 1864–1892

2020 ◽  
Vol 51 (4) ◽  
pp. 439-458
Author(s):  
Sean Fraga
Keyword(s):  
North American ◽  
American West ◽  
Puget Sound ◽  
North American West ◽  
The North ◽  
The Pacific ◽  
Aqueous Environments ◽  
Physical Infrastructure ◽  
The Pacific Ocean ◽  
Northern Pacific

Abstract The Northern Pacific Railroad saw Puget Sound harbors as environments uniquely suited to connect the North American interior with the Pacific Ocean and enable U.S. trade with East Asia. But in building the physical infrastructure to link transcontinental trains with transpacific ships, Northern Pacific significantly altered Commencement Bay’s shoreline and displaced Puyallups from their traditional territory. The articles uses a terraqueous perspective, emphasizing movement between terrestrial and aqueous environments, to demonstrate how U.S. pursuit of transpacific trade shaped the North American West.

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.

Genetic estimates of dispersal ability in the leucaena psyllid predator Curinus coeruleus (Coleoptera: Coccinellidae): implications for biological control

1996 ◽  
Vol 86 (4) ◽  
pp. 355-361 ◽  
Author(s):  
Peter A. Follett ◽  
George K. Roderick
Keyword(s):  
Biological Control ◽  
Gene Flow ◽  
Pacific Islands ◽  
Isolation By Distance ◽  
Geographic Distance ◽  
Population Subdivision ◽  
Dispersal Ability ◽  
The Pacific ◽  
The Individual ◽  
Curinus Coeruleus

AbstractThe leucaena psyllid, Heteropsylla cubana Crawford, can devastate plantings of Leucaena leucocephala (Leguminosae), an economically important tree species in the Pacific Islands, Southeast Asia, Australia, India, Africa, and elsewhere. The predatory beetle, Curinus coeruleus Mulsant (Coleoptera: Coccinellidae), has been introduced into many of these areas from Hawaii for biological control of the psyllid. In this study, collections of C. coeruleus were made from 11 populations on four islands in the Hawaiian archipelago to determine population structure and estimate levels of gene flow. Over all populations, a measure of population subdivision, θ was 0.095, and the estimate of Nem, the average migration rate, was 2.4. θ values for the individual islands were 0.02, 0.12, 0.24 and 0.05 for Kauai, Hawaii, Maui, and Oahu, respectively. Estimated levels of gene flow between populations were not correlated with geographic distance, therefore isolation by distance does not appear to be an important process structuring C. coeruleus populations. Gene flow estimates can be used to characterize dispersal capabilities in insects or other organisms released for biological control. In this case, the inferior dispersal ability of C. coeruleus likely limits its rapid widespread establishment during release programmes.

Diverse and changing use of the Salish Sea by Pacific salmon, trout, and char

2021 ◽  
Author(s):  
Thomas P. Quinn ◽  
James P. Losee
Keyword(s):  
Pacific Salmon ◽  
Puget Sound ◽  
Downstream Migration ◽  
Habitat Alteration ◽  
Salish Sea ◽  
Migration Patterns ◽  
Migration Timing ◽  
The Past ◽  
The Pacific ◽  
The Pacific Ocean

Each year, juveniles of eight salmonid species enter the Salish Sea - the inland marine waters between northwestern Washington, USA and British Columbia, Canada. These species vary in the proportions remaining there and migrating to feed in the Pacific Ocean. Such differential migration affects their growth rates, and exposure to habitat alteration, predators, fisheries, and contaminants. We review these diverse migration patterns and present data from Puget Sound illustrating the variation in downstream migration timing, residency in the Salish Sea, and upriver return timing. Recreational catch records indicate that proportionally fewer remain in the Salish Sea than in past decades for several species, and the declines began after peaks in the late 1970s – early 1980s. These declines resist easy explanation because the factors controlling residency are poorly understood, and the Salish Sea has changed over the past decades. Regardless of the cause, the diversity of migration patterns is important to the ecology of the salmon and trout species, and to the humans and other members of the Salish Sea community with which they interact.

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.

scholarly journals Biodiversity and Emerging Biogeography of the Neutrophilic Iron-Oxidizing Zetaproteobacteria

2011 ◽  
Vol 77 (15) ◽  
pp. 5445-5457 ◽  
Author(s):  
Sean M. McAllister ◽  
Richard E. Davis ◽  
Joyce M. McBeth ◽  
Bradley M. Tebo ◽  
David Emerson ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Geographic Distance ◽  
Environmental Parameters ◽  
Small Subunit ◽  
Rrna Gene ◽  
Ssu Rrna ◽  
Content Type ◽  
Ssu Rrna Gene ◽  
The Pacific ◽  
The Pacific Ocean

ABSTRACTMembers of the neutrophilic iron-oxidizing candidate classZetaproteobacteriahave predominantly been found at sites of microbially mediated iron oxidation in marine environments around the Pacific Ocean. Eighty-four full-length (>1,400-bp) and 48 partial-lengthZetaproteobacteriasmall-subunit (SSU) rRNA gene sequences from five novel clone libraries, one novelZetaproteobacteriaisolate, and the GenBank database were analyzed to assess the biodiversity of this burgeoning class of theProteobacteriaand to investigate its biogeography between three major sampling regions in the Pacific Ocean: Loihi Seamount, the Southern Mariana Trough, and the Tonga Arc. Sequences were grouped into operational taxonomic units (OTUs) on the basis of a 97% minimum similarity. Of the 28 OTUs detected, 13 were found to be endemic to one of the three main sampling regions and 2 were ubiquitous throughout the Pacific Ocean. Additionally, two deeply rooted OTUs that potentially dominate communities of iron oxidizers originating in the deep subsurface were identified. Spatial autocorrelation analysis and analysis of molecular variance (AMOVA) showed that geographic distance played a significant role in the distribution ofZetaproteobacteriabiodiversity, whereas environmental parameters, such as temperature, pH, or total Fe concentration, did not have a significant effect. These results, detected using the coarse resolution of the SSU rRNA gene, indicate that theZetaproteobacteriahave a strong biogeographic signal.

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.

Journal of Captain Cook's Last Voyage to the Pacific Ocean, onDiscovery

2014 ◽  
Author(s):  
John Rickman
Keyword(s):  
Pacific Ocean ◽  
The Pacific ◽  
The Pacific Ocean

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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