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The Design And Analysis Of Salmonid Tagging Studies In The Columbia Basin Volume Ii Estimating Salmonid Survival With Combined Pit Cwt Tagging
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Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin. Volume II: Estimating Salmonid Survival with Combined PIT-CWT Tagging by :
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin. Volume II: Estimating Salmonid Survival with Combined PIT-CWT Tagging written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Passive Integrated Transponder (PIT) tags and Coded Wire Tags (CWTs) in combination can provide information about salmonid survival that single tag releases may not. The release and recapture protocol affects which survival and recapture rates can be estimated and the precision of the estimates. For the particular case of Columbia river salmonids tagged with both PIT tags and CWTs, three different release and recapture protocols were evaluated. This report addresses the need to study the fate of salmon smolt in-river and their subsequent return as adults. Double-tagging procedures are investigated where PIT-tags would be used to provide in-river survival data during smolt outmigrations and coded-wire tags (CWT) used to provide adult return information. This report provides statistical models for the analysis of the joint data as well as recommendations on optimal tagging studies. Study costs and stress on smolt can be reduced by only PIT-tagging a subset of all the fish coded-wire-tagged, while retaining the information content and sampling precision.
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin by : Ken Newman
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin written by Ken Newman and published by . This book was released on 1997 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report "addresses measure 5.0F.5 of the 1994 NPPC Fish and Wildlife Program with emphasis on improved design and analysis capabilities related to the conduct of salmonid tagging studies in the Columbia River Basin. Double-tagging procedures are investigated where PIT-tags would be used to provide in-river survival data during smolt outmigrations and coded-wire tags (CWT) used to provide adult return information. This report provides statistical models for the analysis of joint data as well as reoommendations on optimal tagging studies."
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin by :
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin written by and published by . This book was released on 1997 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment designs to estimate the effect of transportation on survival and return rates of Columbia River system salmonids are discussed along with statistical modeling techniques. Besides transportation, river flow and dam spill are necessary components in the design and analysis otherwise questions as to the effects of reservoir drawdowns and increased dam spill may never be satisfactorily answered. Four criteria for comparing different experiment designs are: (1) feasibility, (2) clarity of results, (3) scope of inference, and (4) time to learn. In this report, alternative designs for conducting experimental manipulations of smolt tagging studies to study effects of river operations such as flow levels, spill fractions, and transporting outmigrating salmonids around dams in the Columbia River system are presented. The principles of study design discussed in this report have broad implications for the many studies proposed to investigate both smolt and adult survival relationships. The concepts are illustrated for the case of the design and analysis of smolt transportation experiments. The merits of proposed transportation studies should be measured relative to these principles of proper statistical design and analysis.
Book Synopsis Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume VII ; Monte-Carlo Comparison of Confidence Interval Procedures for Estimating Survival in a Release-Recapture Study, with Applications to Snake River Salmonids, 1996 Technical Report by :
Download or read book Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume VII ; Monte-Carlo Comparison of Confidence Interval Procedures for Estimating Survival in a Release-Recapture Study, with Applications to Snake River Salmonids, 1996 Technical Report written by and published by . This book was released on 1996 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project 89-107, Epidemiological Survival Methods, was developed to provide statistical guidance on the design and analysis of PIT-tag survival studies to the Northwest fisheries community.
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin ; Volume XII ; A Multinomial Model for Estimating Ocean Survival from Salmonid Coded Wire-Tag Data by :
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin ; Volume XII ; A Multinomial Model for Estimating Ocean Survival from Salmonid Coded Wire-Tag Data written by and published by . This book was released on 1999 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to illustrate the development of a stochastic model using coded wire-tag (CWT) release and age-at-return data, in order to regress first year ocean survival probabilities against coastal ocean conditions and climate covariates.
Book Synopsis Design and Analysis of Salmonid Tagging Studies in the Columbia Basin. Volume III, Experiment Designs and Statistical Models to Estimate the Effect of Transportation on Survival of Columbia River System Salmonids by :
Download or read book Design and Analysis of Salmonid Tagging Studies in the Columbia Basin. Volume III, Experiment Designs and Statistical Models to Estimate the Effect of Transportation on Survival of Columbia River System Salmonids written by and published by . This book was released on 1997 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment designs to estimate the effect of transportation on survival and return rates of Columbia River system salmonids are discussed along with statistical modeling techniques. Besides transportation, river flow and dam spill are necessary components in the design and analysis, otherwise questions as to the effects of reservoir drawdowns and increased dam spill may never be satisfactorily answered. Four criteria for comparing different experiment designs are: (1) feasibility; (2) clarity of results; (3) scope of inference; and (4) time to learn. A controlled experiment with treatments that are a combination of transport status (transported or left in-river), river flow level, and dam spill level should provide the clearest results of transport effect. The potential for bias due to interactions between year effects and the treatments is minimized by running as many treatments as possible within a single outmigration year. Relatedly, the most rapid learning will occur if several different treatments are implemented at randomly chosen time periods within thesame outmigration season. If the range of flow and dam manipulation includes scenarios of interest to managers, the scope of inference should be satisfactory. On the other hand these designs may be the least feasible; trying to manage the river system under a sequence of deliberately chosen flow regimes within a single season, for example, may be quite impractical. At the other end of the spectrum are designs that simply have two treatment combinations, transportation and being left in-river, and the influence of flow and spill are controlled for, if possible, in after-the-fact statistical analysis. Because of possible confounding influences of flow and spill on the transportation effect, these designs could yield the most ambiguous results and require the most years of experimentation to learn. If flows and spill are not manipulated in a planned, well defined, and impartial manner the scope and quality of inference may not be satisfactory. On the other hand, these designs are the simplest to implement. Implementation issues are: (1) The nature of flow and spill level manipulations will need clear definition, either in absolute terms, cfs, or relative terms, such as spilling 10% of the water. (2) Relatedly, system wide implementation of flow and spill levels will provide simpler interpretation of results than will mixing spill rates, for instance, between dams. Transporting fish from just one location will also simplify interpretation. (3) Tagging of experimental fish should be done well upstream of the dams with random assignment to transport or in-river groups done later, near the dams, to minimize biases from delayed tagging mortality. (4) Tagging with PIT tags and CWTs in combination will provide evidence of any potential homing problems. (5) High PIT tag retention rates are important to minimizing potential analysis problems (thus on-going research to improve retention is vital). (6) Approximate sample sizes to achieve a desired level of precision can be calculated fairly easily using formulas provided in the report.
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin; Volume X; Instructional Guide to Using Program Capthist to Create Surph Files for Survival Analysis Using Ptagis Data Files by :
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin; Volume X; Instructional Guide to Using Program Capthist to Create Surph Files for Survival Analysis Using Ptagis Data Files written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Project 89-107, Epidemiological Survival Methods, was developed to provide statistical guidance on the design and analysis of PIT-tag survival studies to the Northwest fisheries community.
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin by :
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin written by and published by . This book was released on 2001 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of oceanographic conditions, as well as effects of release-timing and release-size, on first ocean-year survival of subyearling fall chinook salmon were investigated by analyzing CWT release and recovery data from Oregon and Washington coastal hatcheries. Age-class strength was estimated using a multinomial probability likelihood which estimated first-year survival as a proportional hazards regression against ocean and release covariates. Weight-at-release and release-month were found to significantly effect first year survival (p 0.05) and ocean effects were therefore estimated after adjusting for weight-at-release. Negative survival trend was modeled for sea surface temperature (SST) during 11 months of the year over the study period (1970-1992). Statistically significant negative survival trends (p 0.05) were found for SST during April, June, November and December. Strong pairwise correlations (r 0.6) between SST in April/June, April/November and April/December suggest the significant relationships were due to one underlying process. At higher latitudes (45{sup o} and 48{sup o}N), summer upwelling (June-August) showed positive survival trend with survival and fall (September-November) downwelling showed positive trend with survival, indicating early fall transition improved survival. At 45{sup o} and 48{sup o}, during spring, alternating survival trends with upwelling were observed between March and May, with negative trend occurring in March and May, and positive trend with survival occurring in April. In January, two distinct scenarios of improved survival were linked to upwelling conditions, indicated by (1) a significant linear model effect (p
Book Synopsis Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XV ; Appraisal of the Relationship Between Tag Detection Efficiency at Bonneville Dam and the Precision of In-River Survival Estimates of Returning PIT-Tagged Chinook Salmon, 2000 Technical Report by :
Download or read book Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XV ; Appraisal of the Relationship Between Tag Detection Efficiency at Bonneville Dam and the Precision of In-River Survival Estimates of Returning PIT-Tagged Chinook Salmon, 2000 Technical Report written by and published by . This book was released on 2000 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the advent of the installation of a PIT-tag interrogation system in the Cascades Island fish ladder at Bonneville Dam, this report provides guidance on the anticipated precision of in-river survival estimates for returning adult salmonids, between Bonneville and Lower Granite dams, for various levels of system-wide adult detection probability at Bonneville Dam. Precision was characterized by the standard error of the survival estimates and the coefficient of variation of the survival estimates. The anticipated precision of in-river survival estimates for returning adult salmonids was directly proportional to the number of PIT-tagged smolts released and to the system-wide adult detection efficiency at Bonneville Dam, as well as to the in-river juvenile survival above Lower Granite Dam. Moreover, for a given release size and system-wide adult detection efficiency at Bonneville Dam, higher estuarine and marine survival rates also produced more precise survival estimates. With a system-wide detection probability of P{sub BA} = 1 at Bonneville Dam, the anticipated CVs for in-river survival estimate ranged between 9.4 and 20% with release sizes of 10,000 smolts. Moreover, if the system-wide adult detection efficiency at Bonneville Dam is less than maximum (i.e., P{sub BA}
Book Synopsis Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XVI ; Alternative Designs for Future Adult PIT-Tag Detection Studies, 2000 Technical Report by :
Download or read book Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XVI ; Alternative Designs for Future Adult PIT-Tag Detection Studies, 2000 Technical Report written by and published by . This book was released on 2000 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the advent of the installation of a PIT-tag interrogation system in the Cascades Island fish ladder at Bonneville Dam (BON), and other CRB dams, this overview describes in general terms what can and cannot be estimated under seven different scenarios of adult PIT-tag detection capabilities in the CRB. Moreover, this overview attempted to identify minimal adult PIT-tag detection configurations required by the ten threatened Columbia River Basin (CRB) chinook and steelhead ESUs. A minimal adult PIT-tag detection configuration will require the installation of adult PIT-tag detection facilities at Bonneville Dam and another dam above BON. Thus, the Snake River spring/summer and fall chinook salmon, and the Snake River steelhead will require a minimum of three dams with adult PIT-tag detection capabilities to guarantee estimates of ''ocean survival'' and at least of one independent, in-river returning adult survival (e.g., adult PIT-tag detection facilities at BON and LGR dams and at any other intermediary dam such as IHR). The Upper Columbia River spring chinook salmon and steelhead will also require a minimum of three dams with adult PIT-tag detection capabilities: BON and two other dams on the BON-WEL reach. The current CRB dam system configuration and BPA's and COE's commitment to install adult PIT-tag detectors only in major CRB projects will not allow the estimation of an ''ocean survival'' and of any in-river adult survival for the Lower Columbia River chinook salmon and steelhead. The Middle Columbia River steelhead ESU will require a minimum of two dams with adult PIT-tag detection capabilities: BON and another upstream dam on the BON-McN reach. Finally, in spite of their importance in terms of releases, PIT-tag survival studies for the Upper Willamette chinook and Upper Willamette steelhead ESUs cannot be perform with the current CRB dam system configuration and PIT-tag detection capabilities.
Book Synopsis Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XIII ; Appraisal of System-Wide Survival Estimation of Snake River Yearling Chinook Salmon Released in 1997 and 1988, Using PIT-Tags Recovered from Caspian Tern and Double-Crested Cormorant Breeding Colonies on Rice Island, 1997-1998 Technical Report by :
Download or read book Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XIII ; Appraisal of System-Wide Survival Estimation of Snake River Yearling Chinook Salmon Released in 1997 and 1988, Using PIT-Tags Recovered from Caspian Tern and Double-Crested Cormorant Breeding Colonies on Rice Island, 1997-1998 Technical Report written by and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: PIT-tags recovered from tern and cormorant breeding colonies at Rice Island and observations from the interrogation systems at John Day and Bonneville Dams were incorporated into survival analyses. Whether the estimates for the upper reaches of the system, between Lower Granite and McNary Dams were as expected (with weighted averages S{sub LGR-LGS} = 0.996, S{sub LGS-LMN} = 0.837, and S{sub LMN-McN} = 0.941), those for the lower reaches, between John Day and Bonneville Dams, appeared positively biased with survival estimates typically greater than 1. Their weighted averages were S{sub McN-JDA} = 0.707 and S{sub JDA-BON} = 1.792 for 1997 releases. For the 1998 releases, they were S{sub McN-JDA} = 0.795 and S{sub JDA-BON} = 1.312. If the estimates for the lower reaches were biased, the estimates for the whole project would also be biased (S{sub LGR-BON} = 0.819). We determined that bias could have arisen if the terns and cormorants of Rice Island fished for salmon yearlings in waters of the BON-Rice reach at low rates (M{sub BON-Rice} (less-than or equal to) 0.2), and the rates of tag-deposition and tag-detection were low (R{sub D} x R{sub R} (less-than or equal to) 0.4). Moreover, unknown levels of uncensored post-detection mortality and scavenging of previously dead salmon yearlings may have also added to the bias.
Download or read book SPLM/SPLA Documentation written by and published by . This book was released on 1992 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XIV ; Appraisal of the Relationship Between Tag Detection Efficiency at Bonneville Dam and the Precision in Estuarine and Marine Survival Estimates on Returning PIT Tagged Chinook Salmon, 2000 Technical Report by :
Download or read book Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XIV ; Appraisal of the Relationship Between Tag Detection Efficiency at Bonneville Dam and the Precision in Estuarine and Marine Survival Estimates on Returning PIT Tagged Chinook Salmon, 2000 Technical Report written by and published by . This book was released on 2000 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the advent of the installation of a PIT-tag interrogation system in the Cascades Island fish ladder at Bonneville Dam, this report provides guidance on the anticipated precision of salmonid estuarine and marine survival estimates, for various levels of system-wide adult detection probability at Bonneville Dam. Precision was characterized by the standard error of the survival estimates and the coefficient of variation of the survival estimates. The anticipated precision of salmonid estuarine and marine survival estimates was directly proportional to the number of PIT-tagged smolts released and to the system-wide adult detection efficiency at Bonneville Dam, as well as to the in-river juvenile survival above Lower Granite Dam. Moreover, for a given release size and system-wide adult detection efficiency, higher estuarine and marine survivals did also produce more precise survival estimates. With a system-wide detection probability of P{sub BA} = 1 at Bonneville Dam, the anticipated CVs for the estuarine and marine survival ranged between 41 and 88% with release sizes of 10,000 smolts. Only with the 55,000 smolts being released from sites close to Lower Granite Dam and under high estuarine and marine survival, could CVs of 20% be attained with system detection efficiencies of less than perfect detection (i.e., P{sub BA}
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin. Volume 7: Monte-Carlo Comparison of Confidence Interval Procedures for Estimating Survival in a Release-recapture Study, with Applications to Snake River Salmonids by :
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin. Volume 7: Monte-Carlo Comparison of Confidence Interval Procedures for Estimating Survival in a Release-recapture Study, with Applications to Snake River Salmonids written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Confidence intervals for survival probabilities between hydroelectric facilities of migrating juvenile salmonids can be computed from the output of the SURPH software developed at the Center for Quantitative Science at the University of Washington. These intervals have been constructed using the estimate of the survival probability, its associated standard error, and assuming the estimate is normally distributed. In order to test the validity and performance of this procedure, two additional confidence interval procedures for estimating survival probabilities were tested and compared using simulated mark-recapture data. Intervals were constructed using normal probability theory, using a percentile-based empirical bootstrap algorithm, and using the profile likelihood concept. Performance of each method was assessed for a variety of initial conditions (release sizes, survival probabilities, detection probabilities). These initial conditions were chosen to encompass the range of parameter values seen in the 1993 and 1994 Snake River juvenile salmonid survival studies. The comparisons among the three estimation methods included average interval width, interval symmetry, and interval coverage.
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin by : John Raymond Skalski
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin written by John Raymond Skalski and published by . This book was released on 1998 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin by : Alan B. Lowther
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin written by Alan B. Lowther and published by . This book was released on 1997 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report describes the extension of release-recapture theory to the analysis of fall subyearling chinook salmon with a new model that includes not only spring survival but also the probabilities of smolt residualizing and surviving over winter."--Preface, p.ii.
Book Synopsis The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin by : Ken Newman
Download or read book The Design and Analysis of Salmonid Tagging Studies in the Columbia Basin written by Ken Newman and published by . This book was released on 1997 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
