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Movement Growth And Survival Of Juvenile Coho Salmon And Trout In The East Twin River Washington
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Book Synopsis Movement, Growth, and Survival of Juvenile Coho Salmon and Trout in the East Twin River, Washington by : Todd R. Bennett
Download or read book Movement, Growth, and Survival of Juvenile Coho Salmon and Trout in the East Twin River, Washington written by Todd R. Bennett and published by . This book was released on 2006 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Juvenile Coho Salmon Movement, Growth and Survival in a Coastal Basin of Southern Oregon by : Adam D. Weybright
Download or read book Juvenile Coho Salmon Movement, Growth and Survival in a Coastal Basin of Southern Oregon written by Adam D. Weybright and published by . This book was released on 2011 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Juvenile salmonids display highly variable spatial and temporal movement patterns that are influenced by density dependent (e.g., competition, predation) and density independent (e.g., genetics, stream discharge, physical habitat conditions) factors. The effects of these factors differ with fish life history stage, but will ultimately affect how salmonids utilize freshwater nursery habitats and influence their size at smolting. Although juvenile coho salmon (Oncorhynchus kisutch) (Walbaum 1792) movement patterns and their relationships with body mass have been previously examined, the temporal scale considered in most studies has been within individual seasonal periods. In this study, we monitored the movement of PIT tagged juvenile coho salmon throughout the period of freshwater residence in an entire southern Oregon coastal basin to identify the prevalent sedentary and mobile strategies these fish may adopt and to examine possible relationships between those strategies and fish body mass, growth and survival. Specific objectives include: 1) to describe juvenile coho salmon movement strategies and patterns during the freshwater residence period; 2) to determine the relative proportions of juvenile coho salmon that exhibit each movement strategy; 3) to establish whether juvenile coho salmon body mass and growth rates are related with a set of habitat variables recorded during this study; 4) to determine whether coho salmon body mass or growth rates are related to movement strategy; and 5) to evaluate whether winter survival of juvenile coho salmon is associated with movement strategy. Results revealed seasonally and spatially variable movement. More than half of coho salmon tracked throughout the period of freshwater residence exhibited movement behavior that differed between summer and winter seasons. Within seasonal periods, coho salmon in tidally affected reaches exhibited greater prevalence of mobile behavior relative to those in riverine reaches. Regression analysis indicated coho biomass density, habitat unit structural complexity and size at tagging were important in predicting summer growth of coho salmon. Juvenile coho salmon that were mobile during summer were either larger or no different in body mass in early summer relative to fish that exhibited sedentary behavior. Similarly, no consistent differences were observed between sedentary and mobile coho salmon in regards to summer growth. Coho salmon that were sedentary in summer and winter experienced higher apparent winter survival than mobile fish in each season, though the reach in which an individual resided at the start of winter appeared to also affect survival. Coho salmon residing in the tide gate reservoir reach and mainstem headwater reaches experienced greatest apparent winter survival. These results indicate that juvenile coho salmon movement within a stream basin is spatially and temporally variable and that mobility does not necessarily indicate inferior competitive ability. In a broader context, variable movement patterns reflect the capacity for plastic behavior in salmonids and this research demonstrates the importance of maintaining seasonally diverse freshwater and estuarine nursery habitats for juvenile fish.
Book Synopsis Evaluation of Movement and Survival of Juvenile Steelhead (Oncorhynchus Mykiss) and Coho Salmon (Oncorhynchus Kisutch) in the Klickitat River, Washington, 2018-2019 by : Scott D. Evans
Download or read book Evaluation of Movement and Survival of Juvenile Steelhead (Oncorhynchus Mykiss) and Coho Salmon (Oncorhynchus Kisutch) in the Klickitat River, Washington, 2018-2019 written by Scott D. Evans and published by . This book was released on 2021 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Logging on Growth of Juvenile Coho Salmon by : Paul M. Iwanaga
Download or read book Effects of Logging on Growth of Juvenile Coho Salmon written by Paul M. Iwanaga and published by . This book was released on 1973 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Growth, Retention, and Movement of Juvenile Coho Salmon in Natural and Constructed Habitats of the Mid-Klamath River by : Shari K. Witmore
Download or read book Seasonal Growth, Retention, and Movement of Juvenile Coho Salmon in Natural and Constructed Habitats of the Mid-Klamath River written by Shari K. Witmore and published by . This book was released on 2014 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Retention rate was positively correlated with average maximum depth; however the summer retention rate of juvenile salmon at the sites was not correlated with salmon growth at the sites. I observed three seasonal movement patterns of juvenile coho salmon: spring redistribution of fry; fall redistribution associated with initial high flows, and outmigration of smolts during the following spring. A diurnal movement pattern was also detected at the mouths of Tom Martin Creek and Caltrans Pond in which juvenile coho salmon left the study site in the evening and returned in the early morning. This exploratory study showed that not only do juvenile coho salmon in the mid-Klamath display several different migratory patterns; choosing different types of off-channel habitats to rear, but the growth and retention rates of those fish depend on complex and site specific characteristics rather than type of habitat.
Book Synopsis Growth and Survival of Juvenile Coho Salmon Introduced Into Floras Lake, Oregon by : Gary A. Hostick
Download or read book Growth and Survival of Juvenile Coho Salmon Introduced Into Floras Lake, Oregon written by Gary A. Hostick and published by . This book was released on 1973 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Survival and Movement of Juvenile Coho Salmon (Oncorhynchus Kisutch) in the Shasta River, California by : Christopher C. Adams
Download or read book Survival and Movement of Juvenile Coho Salmon (Oncorhynchus Kisutch) in the Shasta River, California written by Christopher C. Adams and published by . This book was released on 2013 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: I developed a multi-state mark-recapture model to estimate apparent survival, movement, and detection probabilities among four segments of the Shasta River during the first spring, summer, winter, and age-1 smolt outmigration periods. Apparent survival estimates in different segments of the Shasta River ranged from 0.42 to 0.74 over the summer and from 0.52 to 1.00 over the winter. The estimated apparent survival probability for age-1 smolts migrating from the upper Shasta River to the Klamath River was 0.77. Findings in this study may be used to guide restoration efforts for coho salmon in the Shasta River by focusing them on locations that are not meeting fish needs or during seasonal periods of low survival.
Book Synopsis Effects of Introduced Fishes on Wild Juvenile Coho Salmon Using Three Shallow Western Washington Lakes by :
Download or read book Effects of Introduced Fishes on Wild Juvenile Coho Salmon Using Three Shallow Western Washington Lakes written by and published by . This book was released on 2004 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Basin-scale Variation in the Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon by : Dalton J. Hance
Download or read book Basin-scale Variation in the Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon written by Dalton J. Hance and published by . This book was released on 2013 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall movement for juvenile coho salmon between mainstem and tributary streams during the fall of 2002, 2003, 2004, and 2005. Juvenile coho salmon were tagged with a passive integrated transponder (PIT) and could be detected at five stationary detection sites, two located in perennial tributaries, two in intermittent tributaries, and one in the upper mainstem of the West Fork Smith River, Oregon. For each detection site, I compare the likelihood of detection during the fall by juvenile coho salmon from tagging locations over a multi-kilometer range of distances in each direction away from the tributary confluence. I developed logistic regression models with data from each detection site to estimate: 1) the relative likelihood of immigration into a tributary as compared to emigration out of the tributary, and 2) the relative likelihood of immigration into a tributary from the mainstem downstream of the tributary confluence as compared to immigration from the mainstem upstream of the confluence. For each pair of directions at each detection site, I also compare the change in the likelihood of detection with increasing distance for each direction. Overall, at the two upper-river detection sites, juvenile coho salmon were more likely to emigrate than to immigrate. At the remaining detection sites, juvenile coho salmon were no more likely to emigrate than immigrate. Of these detection sites, fish that immigrated into the mid-river perennial stream were more likely to come from the mainstem downstream of the confluence, whereas fish that immigrated into the two lower-river intermittent tributaries were more likely to come from the mainstem upstream of the confluence. Fall movement of juvenile coho salmon between tributary and mainstem habitat can occur over relatively long distances. This case study demonstrates variation among tributaries in the overall likelihood of emigration and immigration and in the source of immigrants from the mainstem, which may be related to spatial context that combines the physical characteristics and network position of tributary streams. The demonstrated variation in fall movement that connects summer and winter habitat within a stream network is a first step in exploring how complexity in movement interacts with the spatial arrangement and quality of seasonal habitats. More research on the causes of variation in the expression of fall movement will improve our understanding of how the spatial arrangement of habitat within a stream network influences the survival of juvenile coho salmon over the whole freshwater life cycle.
Book Synopsis A Landscape Approach to Determining and Predicting Juvenile Coho Salmon (Oncorhynchus Kisutch) Movement Timing and Growth Patterns Prior to Ocean Entry by :
Download or read book A Landscape Approach to Determining and Predicting Juvenile Coho Salmon (Oncorhynchus Kisutch) Movement Timing and Growth Patterns Prior to Ocean Entry written by and published by . This book was released on 2016 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coho salmon (Oncorhynchus kisutch) rely on unique habitats during the winter season, which may dictate how much individuals may growth and when migration from freshwater rearing habitat to the ocean occurs. Here I analyze movement timing and growth patterns for coho salmon through a field-based study and a literature review. For the field portion, I examined hatchery-stocked juvenile coho salmon across four stream basins in the Russian River watershed, California to determine the relative importance of climate, landscape, and fish size metrics in predicting movement and growth patterns over a winter rearing and spring smolt outmigration time period (December 2014-June 2015). I observed three unique movement strategies: winter parr movement, spring smolt movement, and inter-tributary movement. Movement was predicted in relation to daily temperature and precipitation, followed by in-stream and upslope basin conditions in random forest modeling. Specifically, fish that moved later were associated with basins that contained higher productivity and low-gradient floodplain habitats, while fish that moved earlier came from streams that lacked invertebrate prey and had limited low-gradient rearing habitat. Fish size and timing of movement were the primary predictors of growth, with relatively larger fish in the spring growing faster than fish that were relatively smaller prior to winter. These relationships suggest that hatchery-release fish are still highly influenced by environmental conditions once released, especially in terms of initial seasonal movement, and that watershed conditions should be considered when utilizing hatchery-rearing programs to supplement wild fish populations. In North America, coho salmon populations are distributed from Alaska through California, and may exhibit unique movement and growth patterns in relationship to population-scale vulnerability (Endangered Species Act listing), basin area, and availability and types of rearing habitat. For the second part of my thesis, I conducted a literature review to assess what factors are commonly considered in predicting movement and growth patterns for these fish, as well as the types (season and life stage) and number of movement strategies reported. Eighteen studies were summarized, of which sixteen identified unique movement strategies, ranging from one to four. Despite a wide range of basin areas and latitudes, winter parr and spring smolt movements were commonly observed, with authors primarily relating these behaviors to in-stream habitat and fish size metrics. Additionally, growth was linked positively and primarily with off-channel winter rearing, which may outweigh the importance of fish size in predicting growth when high quality rearing habitats are available during the winter season. Recognizing movement timing diversity and its drivers can help recover threatened coho salmon populations. More widely distributed populations may have unique phenotypic expressions based on localized genetic and environmental interactions, increasing diversity and overall stability across the population, a concept known as the portfolio effect. Understanding fish-habitat relationships can aid recovery efforts by providing a framework of climatic and watershed conditions that support unique behaviors, even in already severely limited populations.
Book Synopsis Movement of Juvenile Coho Salmon in Western Washington Streams by : Charles Joseph DeBlois
Download or read book Movement of Juvenile Coho Salmon in Western Washington Streams written by Charles Joseph DeBlois and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Utilization, Density, and Growth of Steelhead Trout, Coho Salmon, and Pacific Giant Salamander in Relation to Habitat Types in a Small Coastal Redwood Stream by : Michael Roy Lau
Download or read book Habitat Utilization, Density, and Growth of Steelhead Trout, Coho Salmon, and Pacific Giant Salamander in Relation to Habitat Types in a Small Coastal Redwood Stream written by Michael Roy Lau and published by . This book was released on 1994 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Overwinter Survival and Movement of Juvenile Coho Salmon (Oncorhynchus Kisutch) in Relation to Large Woody Debris and Low-velocity Habitat in Northern California Streams by : John D. Deibner-Hanson
Download or read book Overwinter Survival and Movement of Juvenile Coho Salmon (Oncorhynchus Kisutch) in Relation to Large Woody Debris and Low-velocity Habitat in Northern California Streams written by John D. Deibner-Hanson and published by . This book was released on 2019 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some studies suggest that Coho Salmon populations are limited by overwinter survival as a result of insufficient winter habitat. While many small-scale projects aim to define reach and basin-level habitat requirements for Coho Salmon, large-scale studies that assess multiple independent populations remain few. For my research, I quantified large woody debris (LWD) by volume and low-velocity rearing habitat (LVH) as percent area in three coastal watersheds of similar size in northern California to untangle the relationships between Coho Salmon overwinter survival, emigration timing and specific winter habitats. I used mark-recapture techniques with PIT tags to formulate Cormack-Jolly-Seber models for each of three years (2013-2015) to (1) estimate apparent overwinter survival of juvenile Coho Salmon populations, (2) determine to what extent outmigration timing varies among basins, and (3) evaluate the relationships between reach-specific survival, movement and winter habitat. LWD volume ranged from 47.8 to 109.9 cubic meters per kilometer among stream reaches while LVH area spanned from 9.3% to 23.6% of total stream area per reach. Effects of LWD on apparent overwinter survival and early emigration were absent during all three years of the study. Effects of LVH were not observed during 2013 and 2014. In 2015, LVH correlated positively with apparent overwinter survival and negatively with emigration. Larger Coho Salmon had higher apparent overwinter survival rates than small fish, whereas smaller fish had greater emigrations rates before spring. Mean apparent overwinter survival varied by basin from 0.052 to 0.567 but basins maintained consistency across years. Early emigration rates ranged even further by basin (0.023-0.773). Variation in both apparent overwinter survival and early emigration was much greater among basins than within basins. A lot remains to be learned regarding how habitat affects the migratory behavior of Coho Salmon in California and these results suggest the effects may vary significantly by stream. The drastic life history differences observed in neighboring Coho Salmon populations demonstrate the plasticity in a species once thought to be relatively inflexible. Moving forward, incorporating multi-basin approaches should be considered when evaluating freshwater survival and movement to inform large-scale restoration and conservation.
Book Synopsis Overwinter Survival and Redistribution of Juvenile Coho Salmon, Oncorhynchus Kisutch, in Prairie Creek, California by : Tancy R. Moore
Download or read book Overwinter Survival and Redistribution of Juvenile Coho Salmon, Oncorhynchus Kisutch, in Prairie Creek, California written by Tancy R. Moore and published by . This book was released on 2014 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the summer of 2012, juvenile coho salmon (Oncorhynchus kisutch) in Prairie Creek, California and its tributaries were marked using PIT tags to monitor winter redistribution and estimate overwinter growth and survival. Since a substantial number of juvenile coho salmon in the Prairie Creek watershed may rear in freshwater for two years, a scale sample analysis was also conducted to determine what proportion of the 2012 population was exhibiting a two-year freshwater residency. The Cormack-Jolly-Seber model and Program MARK were used to examine how rearing location, size at tagging, habitat unit depth, and volume of large woody debris affected overwinter survival. I found that 98.6% of juveniles in 2012 were age 0, and apparent overwinter survival was 39.4%. On average, juveniles experienced a 0.13% increase in length per day and 0.35% increase in weight per day, with the smallest fish experiencing the highest growth rates. Fish that were larger in fall and tagged closer to the confluence of Prairie Creek had higher apparent overwinter survival, but habitat depth and quantity of large woody debris did not appear to impact survival probability. Large juveniles appeared to have low survival near the confluence of Prairie Creek; however, the model could not distinguish deaths from emigration, meaning the high mortality rate for large juveniles near the mouth may actually reflect a pattern of early emigration from the study area. Since juveniles that migrate to sea prior to spring trapping are typically treated as mortalities, these results have important implications for the way managers estimate freshwater survival for coho salmon.
Book Synopsis Passage Survival of Juvenile Steelhead, Coho Salmon, and Chinook Salmon in Lake Scanewa and at Cowlitz Falls Dam, Cowlitz River, Washington, 2010-16 by : Theresa L. Liedtke
Download or read book Passage Survival of Juvenile Steelhead, Coho Salmon, and Chinook Salmon in Lake Scanewa and at Cowlitz Falls Dam, Cowlitz River, Washington, 2010-16 written by Theresa L. Liedtke and published by . This book was released on 2018 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summer Movement and Growth of Individually Marked Juvenile Salmonids in Western Washington Streams by : Thomas Harlan Kahler
Download or read book Summer Movement and Growth of Individually Marked Juvenile Salmonids in Western Washington Streams written by Thomas Harlan Kahler and published by . This book was released on 1999 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Available Habitat for Salmon and Steelhead Trout in the Lower Puyalup, White, and Carbon Rivers in Western Washington by : S. S. Embrey
Download or read book Available Habitat for Salmon and Steelhead Trout in the Lower Puyalup, White, and Carbon Rivers in Western Washington written by S. S. Embrey and published by . This book was released on 1991 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
