scholarly journals Validating timing of salmon smolt runs obtained by telemetry studies

2021 ◽  
Author(s):  
Magnus Hulbak ◽  
Erlend M. Hanssen ◽  
Robert J. Lennox ◽  
Anne Gro Vea Salvanes ◽  
Bjørn Barlaup ◽  
...  
Keyword(s):  
Salmon Smolt

scholarly journals EVALUATION OF A DIVERSION FACILITY DURING DOWNSTREAM MIGRATION OF MASU SALMON SMOLT AT THE PIRIKA DAM, HOKKAIDO, JAPAN

2015 ◽  
Vol 71 (4) ◽  
pp. I_943-I_948
Author(s):  
Kazufumi HAYASHIDA ◽  
Hisaya NII ◽  
Kazuyoshi WATANABE ◽  
Toshiyuki MIYAZAKI ◽  
Hiroshi UEDA
Keyword(s):  
Masu Salmon ◽  
Downstream Migration ◽  
Salmon Smolt

Less anxious salmon smolt become easy prey during downstream migration

2019 ◽  
Vol 687 ◽  
pp. 488-493 ◽  
Author(s):  
Jonatan Klaminder ◽  
Micael Jonsson ◽  
Johan Leander ◽  
Johan Fahlman ◽  
Tomas Brodin ◽  
...  
Keyword(s):  
Downstream Migration ◽  
Salmon Smolt

Mark-recapture models

1984 ◽  
Vol 16 (1) ◽  
pp. 24-24
Author(s):  
P. D. M. Macdonald
Keyword(s):  
British Columbia ◽  
Biological System ◽  
Probabilistic Model ◽  
General Model ◽  
Mark Recapture ◽  
Salmon Smolt

The interpretation of mark-recapture data depends on a probabilistic model for the biological system. The assumptions of the general model must be verified against what is known about the particular system. This talk considers the application of markrecapture methods to the estimation of salmon smolt migrations from Babine Lake, British Columbia.

scholarly journals Field evaluation of a visual barrier to discourage gull nesting

2001 ◽  
Vol 7 (2) ◽  
pp. 143 ◽  
Author(s):  
P. A. Pochop ◽  
J. L. Cummings ◽  
R. M. Engeman
Keyword(s):  
Columbia River ◽  
Field Evaluation ◽  
Management Technique ◽  
Nesting Habitat ◽  
Control Zone ◽  
Larus Delawarensis ◽  
Polypropylene Fabric ◽  
Benton County ◽  
Bird Management ◽  
Salmon Smolt

Expanding gull populations along the Columbia River have been implicated in depredations to threatened and endangered migrating salmon smolt. We tested a visual barrier made of woven black polypropylene fabric to discourage gull nesting. The barrier was installed on Upper Nelson Island, Benton County, Washington, in parallel rows spaced 5 m apart. Gulls used 87% of the 7.9 ha island as nesting habitat and we estimated >21 000 gull nests, 80% Ring-billed Gull Larus delawarensis and 20% California Gull L. califomicus nests. The zone with fencing had 84% fewer nests than the control zone. Silt fencing showed potential as a nonlethal bird management technique.

The “n−3 LC-PUFA sparing effect” of modified dietary n−3 LC-PUFA content and DHA to EPA ratio in Atlantic salmon smolt

Aquaculture ◽  
2012 ◽  
Vol 356-357 ◽  
pp. 135-140 ◽  
Author(s):  
Basseer M. Codabaccus ◽  
Chris G. Carter ◽  
Andrew R. Bridle ◽  
Peter D. Nichols
Keyword(s):  
Atlantic Salmon ◽  
Pufa Content ◽  
Sparing Effect ◽  
Salmon Smolt

scholarly journals Bayesian arrival model for Atlantic salmon smolt counts powered by environmental covariates and expert knowledge

2020 ◽  
Vol 77 (3) ◽  
pp. 462-474
Author(s):  
Henni Pulkkinen ◽  
Panu Orell ◽  
Jaakko Erkinaro ◽  
Samu Mäntyniemi
Keyword(s):  
Atlantic Salmon ◽  
Expert Knowledge ◽  
Predictive Performance ◽  
Monitoring Site ◽  
Model Framework ◽  
Environmental Covariates ◽  
Video Footage ◽  
Monitoring Survey ◽  
Salmon Smolt ◽  
Good Predictive Performance

Annual run size and timing of Atlantic salmon (Salmo salar) smolt migration was estimated using Bayesian model framework and data from 6 years of a video monitoring survey. The model has a modular structure. It separates subprocesses of departing, traveling, and observing, of which the first two together define the arrival distribution. The subprocesses utilize biological background and expert knowledge about the migratory behavior of smolts and about the probability to observe them from the video footage under varying environmental conditions. Daily mean temperature and discharge were used as environmental covariates. The model framework does not require assuming a simple distributional shape for the arrival dynamics and thus also allows for multimodal arrival distributions. Results indicate that 20%–43% of smolts passed the Utsjoki monitoring site unobserved during the years of study. Predictive studies were made to estimate daily run size in cases with missing counts either at the beginning or in the middle of the run, indicating good predictive performance.

scholarly journals Consumption of Atlantic Salmon Smolt by Striped Bass: A Review of the Predator–Prey Encounter and Implications for the Design of Effective Sampling Strategies

Fishes ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 50
Author(s):  
Andrews ◽  
Hirtle ◽  
Linnansaari ◽  
Curry
Keyword(s):  
Atlantic Salmon ◽  
Striped Bass ◽  
Species Interactions ◽  
Morone Saxatilis ◽  
Sampling Strategies ◽  
Native Range ◽  
Spawning Period ◽  
Predator Prey ◽  
Salmon Smolt ◽  
Future Management

The native striped bass (Morone saxatilis) population of the Miramichi River, New Brunswick is undergoing an unprecedented recovery while Atlantic salmon (Salmo salar) numbers within that system continue to decline. Atlantic salmon smolt depart from the Miramichi system during the striped bass spawning period and it is hypothesized that elevated striped bass abundances will increase encounter rates and predation on smolts. We summarize all available striped bass diet studies occurring within the native range of Atlantic salmon and present a review of the feeding behavior and diet preferences of striped bass before, during, and after their spawning period. The key studies vary in methodologies and interpretability. We present a standardized approach for assessing striped bass predation threats and smolt vulnerability and thus an improved understanding of the species interactions to guide future management in the Miramichi River.

THE BIO-ECONOMIC IMPACT OF IMPROVING FISH WELFARE USING DEMAND FEEDERS IN SCOTTISH ATLANTIC SALMON SMOLT PRODUCTION

2012 ◽  
Vol 16 (4) ◽  
pp. 384-398 ◽  
Author(s):  
Lyndsey A. E. Stewart ◽  
Sunil Kadri ◽  
Chris Noble ◽  
Markus Kankainen ◽  
Jari Setälä ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Economic Impact ◽  
Fish Welfare ◽  
Salmon Smolt

Growth, osmoregulation and sexual maturation of underyearling Atlantic salmon smolt Salmo salar L. exposed to different intensities of continuous light in sea cages

1999 ◽  
Vol 30 (7) ◽  
pp. 491-499 ◽  
Author(s):  
F. Oppedal ◽  
G. L. Taranger ◽  
J-E. Juell ◽  
T. Hansen
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Sexual Maturation ◽  
Continuous Light ◽  
Salmon Smolt
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