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Book Rearing of the Native Oyster Larvae  Ostrea Lurida Carp   in Concrete and Wooden Tanks Under Controlled Conditions

Download or read book Rearing of the Native Oyster Larvae Ostrea Lurida Carp in Concrete and Wooden Tanks Under Controlled Conditions written by Nick Pasquale and published by . This book was released on 1953 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Oceanography of the Nearshore Coastal Waters of the Pacific Northwest Relating to Possible Pollution

Download or read book Oceanography of the Nearshore Coastal Waters of the Pacific Northwest Relating to Possible Pollution written by Oregon State University and published by . This book was released on 1971 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Theses and Dissertations  1943 1959

Download or read book Theses and Dissertations 1943 1959 written by Rodney K. Waldron and published by . This book was released on 1960 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Species Profiles

Download or read book Species Profiles written by David Couch and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Summary of Knowledge of the Central and Northern California Coastal Zone and Offshore Areas  Master bibliography

Download or read book A Summary of Knowledge of the Central and Northern California Coastal Zone and Offshore Areas Master bibliography written by Winzler and Kelly Consulting Engineers and published by . This book was released on 1977 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliographic Series

Download or read book Bibliographic Series written by and published by . This book was released on 1957 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliographic Series

Download or read book Bibliographic Series written by Oregon. Library. Forest Research Laboratory and published by . This book was released on 1960 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Identification of Optimal Broodstock for Pacific Northwest Oysters

Download or read book Identification of Optimal Broodstock for Pacific Northwest Oysters written by David A. Stick and published by . This book was released on 2012 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Pacific Northwest is well known for its shellfish farming. Historically, commercial harvests were dominated by the native Olympia oyster, Ostrea lurida, but over-exploitation, habitat degradation, and competition and predation by non-native species has drastically depleted their densities and extirpated many local populations. As a result, shellfish aquaculture production has shifted to the introduced Pacific oyster, Crassostrea gigas. An underlying objective of this dissertation is the use of molecular genetics to improve our ability to accurately identifying optimal oyster broodstock for either restoration of Olympia oysters or farming of Pacific oysters. The ecological benefits provided by oysters as well as the Olympia oyster's historical significance, has motivated numerous restoration/supplementation efforts but these efforts are proceeding without a clear understanding of the genetic structure among extant populations, which could be substantial as a consequence of limited dispersal, local adaptation and/or anthropogenic impacts. To facilitate this understanding, we isolated and characterized 19 polymorphic microsatellites and used 8 of these to study the genetic structure of 2,712 individuals collected from 25 remnant Olympia oyster populations between the northern tip of Vancouver Island BC and Elkhorn Slough CA. Gene flow among geographically separated extant Olympia oyster populations is surprisingly limited for a marine invertebrate species whose free-swimming larvae are capable of planktonic dispersal as long as favorable water conditions exist. We found a significant correlation between geographic and genetic distances supporting the premise that coastal populations are isolated by distance. Genetic structure among remnant populations was not limited to broad geographic regions but was also present at sub-regional scales in both Puget Sound WA and San Francisco Bay CA. Until it can be determined whether genetically differentiated O. lurida populations are locally adapted, restoration projects and resource managers should be cautious of random mixing or transplantation of stocks where gene flow is restricted. As we transition from our Olympia oyster population analysis to our Pacific oyster quantitative analysis, we recognize that traditional quantitative trait locus (QTL) mapping strategies use crosses among inbred lines to create segregating populations. Unfortunately, even low levels of inbreeding in the Pacific oyster (Crassostrea gigas) can substantially depress economically important quantitative traits such as yield and survival, potentially complicating subsequent QTL analyses. To circumvent this problem, we constructed an integrated linkage map for Pacific oysters, consisting of 65 microsatellite (18 of which were previously unmapped) and 212 AFLP markers using a full-sib cross between phenotypically differentiated outbred families. We identified 10 linkage groups (LG1-LG10) spanning 710.48 cM, with an average genomic coverage of 91.39% and an average distance between markers of 2.62 cM. Average marker saturation was 27.7 per linkage group, ranging between 19 (LG9) and 36 markers (LG3). Using this map we identified 12 quantitative trait loci (QTLs) and 5 potential QTLs in the F1 outcross population of 236 full-sib Pacific oysters for four growth-related morphometric measures, including individual wet live weight, shell length, shell width and shell depth measured at four post-fertilization time points: plant-out (average age of 140 days), first year interim (average age of 358 days), second year interim (average age of 644 days) and harvest (average age of 950 days). Mapped QTLs and potential QTLs accounted for an average of 11.2% of the total phenotypic variation and ranged between 2.1 and 33.1%. Although QTL or potential QTL were mapped to all Pacific oyster linkage groups with the exception of LG2, LG8 and LG9, three groups (LG4, LG10 and LG5) were associated with three or more QTL or potential QTL. We conclude that alleles accounting for a significant proportion of the total phenotypic variation for morphometric measures that influence harvest yield remain segregating within the broodstock of West Coast Pacific oyster selective breeding programs.

Book FAO Fish Culture Bulletin

Download or read book FAO Fish Culture Bulletin written by and published by . This book was released on 1968 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fish and Game Code

Download or read book Fish and Game Code written by California and published by . This book was released on 1915 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Biological Problems in Water Pollution

Download or read book Biological Problems in Water Pollution written by and published by . This book was released on 1965 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Exotic Fishes and Other Aquatic Organisms Introduced Into North America

Download or read book Exotic Fishes and Other Aquatic Organisms Introduced Into North America written by Ernest Albert Lachner and published by . This book was released on 1970 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: