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Hatchery Chum Salmon Contribution To Southern Southeast Alaska Commercial Net Fisheries 2011 2015
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Book Synopsis Hatchery Chum Salmon Contribution to Southern Southeast Alaska Commercial Net Fisheries, 2011-2015 by : Malika T. Brunette
Download or read book Hatchery Chum Salmon Contribution to Southern Southeast Alaska Commercial Net Fisheries, 2011-2015 written by Malika T. Brunette and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Southeast Alaska commercial chum salmon harvest increased dramatically over the past 3 decades, primarily due to hatchery production. Hatchery-reared chum salmon accounted for an average 73% of the total common property chum salmon harvest from 2001 to 2010 and 86% from 2011 to 2015. Methods used by hatchery operators to estimate contributions to mixed stock fisheries vary and have not all been described in published reports; likewise, detailed harvest information useful for managing mixed stock fisheries, such as weekly contributions by area, are not readily available. Southern Southeast Regional Aquaculture Association otolith-marks 100% of their chum salmon releases and conducts a comprehensive commercial fisheries sampling program to estimate contributions to regional harvests. Our goal was to document the abundance and distribution of hatchery summer and fall chum salmon, as well as unmarked fish, in the southern Southeast Alaska mixed stock fisheries. From 2011 to 2015, hatchery chum salmon averaged 68% (approximately 908,000 fish) of the overall chum salmon harvest in the District 101–104 and 107 purse seine fisheries combined, and 80% (approximately 457,000 fish) of the District 101, 106, and 108 drift gillnet fisheries combined. Hatchery summer chum salmon harvests in most net fisheries peaked in statistical weeks 27–31 (late June through July). Hatchery fall chum salmon harvests were greatest in District 101 and 106 fisheries and typically peaked in statistical weeks 35–38 (late August to mid-September). Peak harvests of unmarked chum salmon occurred at similar times to marked fish in most cases, indicating that wild and hatchery stocks shared similar run timing in southern Southeast Alaska fisheries.
Book Synopsis Hatchery Chum Salmon Contribution to Southern Southeast Alaska Commercial Net Fisheries, 2006-2010 by : Malika T. Brunette
Download or read book Hatchery Chum Salmon Contribution to Southern Southeast Alaska Commercial Net Fisheries, 2006-2010 written by Malika T. Brunette and published by . This book was released on 2013 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hatchery Chum Salmon Straying in Southeast Alaska, 2011 by : Andrew W. Piston
Download or read book Hatchery Chum Salmon Straying in Southeast Alaska, 2011 written by Andrew W. Piston and published by . This book was released on 2012 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chum Salmon Resources of Alaska from Bristol Bay to Point Hope by : Chester R. Mattson
Download or read book Chum Salmon Resources of Alaska from Bristol Bay to Point Hope written by Chester R. Mattson and published by . This book was released on 1962 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the Whitman Lake Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Whitman Lake Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2016 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program?s consistency with statewide policies, and recommendations to address any deficiencies found. Management plans and permits were examined to determine whether they were current, consistent with each other, and accurately described hatchery operations. This report reviews the Whitman Lake Salmon Hatchery operated by the Southern Southeast Regional Aquaculture Association (SSRAA), a private nonprofit corporation. The facility is located in Ketchikan, Alaska, and currently rears chum salmon Oncorhynchus keta, coho salmon O. kisutch, and Chinook salmon O. tshawytscha. The facility was constructed by SSRAA in 1979. The original broodstock for chum, coho and Chinook salmon were from area stocks. Juvenile salmon are released from the hatchery and release sites in Southern Southeast Alaska. Some projects were not properly permitted in earlier years, and recommendations for clarification of outstanding issues are included in this report. The basic management plan for the hatchery should be updated with a description of current permit conditions and operations.
Book Synopsis An Evaluation of the Burnett Inlet Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Burnett Inlet Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2017 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program's consistency with statewide policies, and recommendations to address any deficiencies found. Management plans and permits were examined to determine whether they were current, consistent with each other, and accurately described hatchery operations.This report reviews the Burnett Inlet Salmon Hatchery, located about 25 miles south of Wrangell. The hatchery is operated by the Southern Southeast Regional Aquaculture Association, a private nonprofit corporation. The facility currently rears chum salmon Oncorhynchus keta and coho salmon O. kisutch. The original broodstock for chum and coho were from area stocks from systems on Prince of Wales Island and systems near Ketchikan. Juvenile salmon are released from the hatchery and release sites in southern Southeast Alaska. The basic management plan for the hatchery should be updated with a description of current permit conditions and operations.
Book Synopsis An Evaluation of the Port Armstrong Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Port Armstrong Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2015 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program's consistency with statewide policies, and recommendations to address any deficiencies found. Management plans and permits were examined to determine whether they were current, consistent with each other, and accurately described hatchery operations. This report reviews the Port Armstrong salmon hatchery located in lower Chatham Strait in southeast Alaska. The hatchery was constructed in the early 1980's by owner Armstrong Keta, Incorporated, a non-profit corporation. The hatchery produces pink salmon Oncorhynchus gorbuscha, chum salmon O. keta, coho salmon O. kisutch and Chinook salmon O. tshawytscha primarily for commercial harvest. All releases to date are from the hatchery. All chum and pink salmon incubated at Port Armstrong Hatchery are thermal otolith-marked. A portion of the coho and Chinook salmon releases are marked with coded wire tags and adipose finclips. Chinook and coho salmon are sampled in the commercial and sport fisheries to assess hatchery contribution. A pilot project is underway to sample pink and chum salmon in the commercial fisheries to estimate contribution to the fisheries by Port Armstrong Hatchery. Spawning escapement goals for naturally spawning salmon stocks in systems near the hatchery and release sites have been met in most years of hatchery returns. The basic management plan for the hatchery should be updated with a description of current permit conditions and operations. Sampling in the common property fisheries for pink and chum salmon produced by Port Armstrong Hatchery will provide more accurate estimates of hatchery contribution than earlier estimates based on historical catch records.
Book Synopsis An Evaluation of the Sawmill Creek Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Sawmill Creek Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2015 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program's consistency with statewide policies, and recommendations to address any deficiencies found. This report reviews the Sawmill Creek salmon hatchery (SCH) located in Sitka, Alaska. The hatchery was constructed in 2002-2003 by the Northern Southeast Regional Aquaculture Association, a regional private nonprofit aquaculture association. The hatchery serves as a satellite facility to Medvejie Creek Hatchery (MCH). Broodstock is collected at MCH and eggs transferred to SCH for incubation and hatching. Some fry are released at MCH for broodstock returns. Other releases are offsite. SCH is permitted to produce coho salmon Oncorhynchus kisutch and chum salmon O. keta primarily for commercial harvest. Coho salmon releases are permitted from MCH and Deep Inlet. Chum salmon releases are permitted from Crawfish Inlet. A portion of the coho salmon releases are marked with coded wire tags and adipose finclip. All salmon incubated at SCH are thermal otolith marked. Coho and chum salmon are sampled in the commercial fisheries to assess contribution. Three area streams are monitored for straying. The basic management plan for the hatchery should be updated to reflect current hatchery operations. Language in the Phase III Southeast Alaska Comprehensive Salmon regarding hatchery operations in wilderness areas of the Tongass National Forest should be revisited by the Regional Planning Team for clarification to current federal law. Straying assessment methodology in Salmon Lake and Sawmill Creek should be reexamined to provide more meaningful data to achieve monitoring objectives.
Book Synopsis Straying, Stress, and Potential for Reproductive Interactions Between Hatchery-produced and Wild Chum Salmon (Oncorhynchus Keta) in Southeast Alaska by : Casey John McConnell
Download or read book Straying, Stress, and Potential for Reproductive Interactions Between Hatchery-produced and Wild Chum Salmon (Oncorhynchus Keta) in Southeast Alaska written by Casey John McConnell and published by . This book was released on 2017 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 1.5 billion juvenile hatchery-produced Pacific salmon (Oncorhynchus spp.) are currently released each year into Alaskan waters with goals of enhancing important fisheries and minimizing detrimental impacts on wild stocks. As the abundance of hatchery-produced salmon has increased, so have concerns about hatchery-origin strays entering wild systems and interactions with wild individuals on the spawning grounds. The influx of non-native strays and their associated fitness-related traits can reduce the resilience and productivity of recipient wild stocks, and is likely to be most deleterious when disparities in population sizes and heritable phenotypic characteristics between wild and hatchery fish exist. Thus, understanding the ecological and life-history mechanisms that regulate gene flow between hatchery and wild populations is crucial for conservation and management strategies in areas where hatchery enhancement is common. Currently, the ecology of strays on the spawning grounds and proximate physiological factors associated with straying (e.g., stress) are not well known. In this thesis I examine, 1) differences and similarities in several fitness-related phenotypic traits between naturally produced (presumably wild local individuals) and stray hatchery-produced chum salmon (Oncorhynchus keta) that died on the spawning grounds of Sawmill Creek, a small watershed near Juneau, Alaska, and 2) physiological differences in cortisol concentrations and the frequency of crystalline (vaterite) structure of otoliths between straying and correctly homing salmon. Hatchery-strays comprised 51.4% of the adult chum salmon that returned to Sawmill Creek during the 2015 spawning season. Hatchery males and females returned approximately seven days later, were consistently smaller (10% for males, 6% for females) in length, and younger on average than their naturally-produced counterparts. Additionally, hatchery-produced females lived fewer days on the spawning grounds during the spawning season, and retained a higher proportion of their eggs than did naturally produced females. To explore the potential role of stress on straying, I compared cortisol samples and frequency of vaterite formation in otoliths among groups of hatchery-produced fish that homed to the hatchery, hatchery-produced fish that strayed to Sawmill Creek, and naturally produced chum salmon that presumably homed to Sawmill Creek. No significant differences in cortisol concentration were found among any groups, though differences between the sexes were detected. Males of all groups had significantly lower cortisol concentrations than did females. No differences in frequency of vaterite occurrence were found between hatchery-stray and hatchery-home groups, though both hatchery groups were higher than naturally produced groups, which is consistent with findings of other studies. Thermal marking while at the hatchery during early development was not associated with vaterite formation, and no difference in frequency of vaterite formation was observed among groups of varying mark intensities. Overall, these results revealed there was ample opportunity for reproductive interactions between stray hatchery-produced and naturally produced chum salmon in Sawmill Creek during the 2015 spawning season, and consistent differences in phenotypic traits suggests the potential for gene flow to alter population-level phenotypic variation. However, despite the potential for gene flow, these results also reveal potential barriers to introgression and indicate that at least some of the presumed locally adapted traits of the natural stock remain intact. It remains unknown what the characteristics of the wild stock were prior to regional hatchery production and the extent to which the traits of this population are reflections of genetic differences between the hatchery and wild groups or phenotypic plasticity. To the extent these results are generalizable, observed differences in fitness-related traits between naturally produced and stray hatchery-produced fish may underlie the reduced reproductive success often reported in the literature. There were no differences in cortisol concentrations and frequency of vaterite occurrence between hatchery chum salmon that strayed and those that homed correctly, and the frequency of vaterite occurrence of hatchery chum salmon did not change as thermal mark intensity increased, which suggests that thermal marking may not directly alter homing ability of adults or development of juveniles, at least via otolith formation. Despite not having an effect on straying, the consistent findings of higher frequency of vaterite occurrence in hatchery-produced fish compared to naturally produced counterparts highlight the need for future work to uncover the causal underlying mechanisms and implications of vaterite on survival of the 1.5 billion salmon released each year in Alaskan waters.
Book Synopsis The Length, Age, and Sex Ratio of Chum Salmon in the Alaska Peninsula, Kodiak Island, and Prince William Sound Areas of Alaska by : Fredrik V. Thorsteinson
Download or read book The Length, Age, and Sex Ratio of Chum Salmon in the Alaska Peninsula, Kodiak Island, and Prince William Sound Areas of Alaska written by Fredrik V. Thorsteinson and published by . This book was released on 1963 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the Snettisham Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Snettisham Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2014 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program’s consistency with statewide policies, and recommendations to address any deficiencies found. Management plans and permits were examined to determine whether they were current, consistent with each other, and accurately described hatchery operations. This report reviews the Snettisham Salmon Hatchery located in Speel Arm of Port Snettisham about 30 air miles south of Juneau in Southeast Alaska. The hatchery was constructed in 1979 by the State of Alaska and remains under state ownership. The hatchery initially produced chum salmon Oncorhynchus keta for commercial harvest, and coho salmon O. kisutch and Chinook salmon O. tshawytscha for sport and commercial harvest. Steelhead O. mykiss and Dolly Varden Salvelinus malma eggs were also incubated at the facility. The hatchery was converted to sockeye salmon production in 1988. Hatchery operations were transferred to Douglas Island Pink and Chum Incorporated, a private nonprofit corporation, in 1996. The sockeye salmon hatchery broodstock were derived from Speel Lake, a water body located near the hatchery. The facility releases smolt from the hatchery, from sites in Speel Arm, and from Sweetheart Lake in Port Snettisham. The hatchery also serves as a central incubation facility for several projects that involve collecting eggs from Canadian Lakes in the Taku and Stikine River drainages, incubating the eggs until hatching at Snettisham Hatchery, and releasing fry back to their natal lakes or to nearby lakes in systems with barriers that make the lakes inaccessible to returning adult sockeye salmon.
Book Synopsis Chum Salmon Stock Status and Escapement Goals in Southeast Alaska by : Steven C. Heinl
Download or read book Chum Salmon Stock Status and Escapement Goals in Southeast Alaska written by Steven C. Heinl and published by . This book was released on 2003 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chum Salmon Stock Status and Escapement Goals in Southeast Alaska Through 2019 by : Andrew W. Piston
Download or read book Chum Salmon Stock Status and Escapement Goals in Southeast Alaska Through 2019 written by Andrew W. Piston and published by . This book was released on 2020 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Southeast Alaska, chum salmon (Oncorhynchus keta) spawn in more than 1,200 streams. The Alaska Department of Fish and Game maintains a standardized survey program to index spawning chum salmon abundance at 87 summer-run and seven fall-run streams. Lower-bound sustainable escapement goals are established for summer-run stocks comprising aggregates of index streams over three broad subregions (Southern Southeast, Northern Southeast Inside, and Northern Southeast Outside), and sustainable escapement goal ranges are established for five fall-run stocks that support directed fisheries (Cholmondeley Sound, Port Camden, Security Bay, Excursion River, and Chilkat River). Summer-run chum salmon escapement goals were met in all of the past five years in the Southern Southeast Subregion, four of the past five years in the Northern Southeast Inside Subregion, and three of the past five years in the Northern Southeast Outside Subregion. Escapement goals were met for the five fall-run stocks 83% of the time over the past five years. No Southeast Alaska stocks of chum salmon currently meet the criteria for stocks of concern as defined by the State of Alaska’s Policy for the Management of Sustainable Salmon Fisheries (5 AAC 39.222). We reviewed chum salmon escapement goals and recommend no changes at this time. The annual common property harvest of chum salmon in Southeast Alaska averaged 7.7 million fish per year since 2010; hatchery-produced fish accounted for an average 86% of that harvest. Increased straying of hatchery chum salmon into streams in the Northern Southeast Outside Subregion from a new release site at Crawfish Inlet has complicated the assessment of wild chum salmon in that subregion and additional sampling is needed to determine the variation and geographic extent of straying from the new release site.
Download or read book Alaska's Fisheries Resources written by and published by . This book was released on 1965 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hatchery Chum Salmon Straying Studies in Southeast Alaska, 2008-2010 by : Andrew W. Piston
Download or read book Hatchery Chum Salmon Straying Studies in Southeast Alaska, 2008-2010 written by Andrew W. Piston and published by . This book was released on 2012 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of the Port St. Nicholas Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Port St. Nicholas Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2016 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program's consistency with statewide policies, and recommendations to address any deficiencies found. Management plans and permits were examined to determine whether they were current, consistent with each other, and accurately described hatchery operations. This report reviews the Port St. Nicholas salmon hatchery located in Craig, Alaska. The hatchery was constructed in 2005 by the Prince of Wales Hatchery Association, a private nonprofit aquaculture association. The hatchery serves as a central incubation site for release of Chinook salmon Oncorhynchus tshawytscha into Port St. Nicholas and Coffman Cove on Prince of Wales Island. The hatchery is also permitted to release chum salmon O. keta from Port Asumcion on Baker Island but has yet to do so. No broodstock is collected from Port St. Nicholas salmon hatchery returns. Eggs will be received in perpetuity from approved facilities in the region. A portion of the Chinook salmon releases are marked with coded wire tags and an adipose fin clip. Chum salmon will be thermal otolith marked. Chinook salmon are sampled in the commercial and sport fisheries to assess hatchery contribution. Streams near the release sites are monitored for Chinook salmon straying. Since the hatchery permit was issued in 2004, the basic management plan for the hatchery should be updated with the hatchery permit amendments made since then, including the Coffman Cove Chinook salmon program and the chum salmon program.
Book Synopsis An Evaluation of the Sheep Creek Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices by : Mark E. Stopha
Download or read book An Evaluation of the Sheep Creek Salmon Hatchery for Consistency with Statewide Policies and Prescribed Management Practices written by Mark E. Stopha and published by . This book was released on 2014 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon hatchery program in Alaska is governed by policies, plans, and regulations that emphasize protection of wild salmon stocks. A rotational series of hatchery evaluations will examine each hatchery for consistency with those policies and prescribed management practices. The evaluation includes a review of hatchery management plans and permits, an assessment of each hatchery program?s consistency with statewide policies, and recommendations to address any deficiencies found. Management plans and permits were examined to determine whether they were current, consistent with each other, and accurately described hatchery operations. This report reviews the Sheep Creek Salmon Hatchery (SCH) operated by the Douglas Island Pink and Chum Incorporated (DIPAC), a private nonprofit corporation. The facility is located in Gastineau Channel on the Juneau waterfront in Southeast Alaska. SCH was constructed by DIPAC in 1980 and is currently permitted to rear coho salmon Oncorhynchus kisutch, and pink salmon Oncorhynchus gorbusha.The original broodstock for chum, pink, and coho salmon were from several area stocks. Juvenile salmon hatched at SCH were released from the hatchery and several release sites near Juneau. Chinook salmon smolts incubated and reared at other Southeast Alaska hatcheries were released from SCH saltwater netpens. Hatchery operations were largely discontinued beginning in 1997. There is no egg incubation at the site today, but chum salmon incubated at Macaulay Salmon Hatchery (MSH) are reared and released from saltwater netpens at Sheep Creek. Chum salmon capacity at SCH was transferred to MSH in 2001. The current capacity for coho salmon at SCH is 150,000 eggs. The permitted capacity for pink salmon is uncertain from review of hatchery permitting documents. The basic management plan for SCH should be updated to reflect the current status of the hatchery and to clarify the current permitted pink salmon egg capacity.
