The effects of environmental factors on the migratory movement patterns of Sacramento River yearling late-fall run Chinook salmon (Oncorhynchus tshawytscha)

Michel, C.; Ammann, Arnold J.; Chapman, Eric D.; Sandstrom, Philip T.; Fish, Heidi; Thomas, Michael J.; Singer, Gabriel P.; Lindley, Steven T.; Klimley, A. Peter; MacFarlane, R. Bruce

doi:10.1007/s10641-012-9990-8

Cited by 46 publications

(45 citation statements)

References 27 publications

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“…Acoustic tag technology for basin-scale studies has become the standard for assessing movement and survival of fish, particularly in salmonids (Perry et al, 2010;Michel et al, 2013). However, these studies are often expensive and do not reveal the mechanisms or locations of mortality.…”

Section: Discussionmentioning

confidence: 99%

“…Traditionally, juvenile Chinook salmon survival within this delta has been estimated by using acoustic tagging data or coded-wire tag recoveries from mid-water trawls (Brandes and McLain, 2001;Newman and Rice, 2002;Buchanan et al, 2013;Michel et al, 2013;Pyper et al, 2013;Newman, 2003;Newman 1 cause most survival data come from acoustic tagging studies, it is essential to improve our understanding of the underlying cause of mortality events (i.e. predation, environmental, or other) from these types of instruments.…”

mentioning

confidence: 99%

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Development of underwater recorders to quantify predation of juvenile Chinook salmon (Oncorhynchus tshawytscha) in a river environment

Demetras¹,

Huff²,

Michel³

et al. 2016

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Abstract-Recent acoustic tagging of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the southern portion of California's Sacramento-San Joaquin Delta has revealed extremely low survival rates (<1%), possibly due to predation by piscivorous fishes. We evaluated predation as a cause of low survival by designing and testing freely floating GPSenabled predation-event recorders (PERs) baited with juvenile Chinook salmon. We estimated predation rates and identified predation locations within a 1-kilometer reach of the Lower San Joaquin River. We modeled the relationship between time to predation and environmental variables with a Cox proportional hazards analysis that accounts for censored data. Our results indicated that an increase of 1 m/s in water velocity elevated the minute-by-minute hazard of predation by a factor of 9.6. Similarly, each increase in median depth decreased the predation hazard by a factor of 0.5. The mean relative predation rate in the study area was 15.3% over 9 sampling events between March and May 2014. Waterproof video cameras attached to a subset (48 of 216) of PERs successfully identified predator species 25% of the time. Our GPS-enabled PERs proved to be an inexpensive and reliable tool, which quantified predation, identified predation locations, and provided complementary information for acoustic telemetry and predator diet studies.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Development of underwater recorders to quantify predation of juvenile Chinook salmon (Oncorhynchus tshawytscha) in a river environment

Demetras¹,

Huff²,

Michel³

et al. 2016

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“…3,4 The tags transmit a unique acoustic signal to a network of receivers (hydrophones) at a selected pulse rate interval (PRI). The receivers detect these signals and extract the arrival time and identification code from the acoustic waveform.…”

Section: Acoustic Telemetrymentioning

confidence: 99%

A small long-life acoustic transmitter for studying the behavior of aquatic animals

Deng

et al. 2016

Review of Scientific Instruments

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Acoustic telemetry is an important tool for studying the behavior of aquatic animals and assessing the environmental impact of structures such as hydropower facilities. However, the physical size, signal intensity, and service life of off-the-shelf transmitters are presently insufficient for monitoring certain species. In this study, we developed a small, long-life acoustic transmitter with an approximate length of 24.2 mm, diameter of 5.0 mm, and dry weight of 0.72 g. The transmitter generates a coded acoustic signal at 416.7 kHz with a selectable source level between 159 and 163 dB relative to 1 µPa at 1 m, allowing a theoretical detection range of up to 500 m. The expected operational lifetime is 1 yr at a pulse rate interval of 15 s. The new technology makes long-term acoustic telemetry studies of small fish possible, and is being deployed for a long-term tracking of juvenile sturgeon. C 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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“…This, in turn, provides fishery research and management with insight and tools to improve preservation and recovery of imperiled stocks. Michel et al (2013) determined the annual rate of movement of late-fall run Chinook salmon yearling smolts carrying acoustic tags as they passed an array of tag-detecting monitors deployed in the California's Sacramento River and San Francisco Estuary for 3 years. The migration rates varied from 89.1 km/day in the upper river between river km 518 and 486 to 15.3 km/day within the Sacramento-San Joaquin Delta.…”

Section: Movement and Migratory Patternsmentioning

confidence: 99%

A summary of the use of electronic tagging to provide insights into salmon migration and survival

et al. 2012

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The effects of environmental factors on the migratory movement patterns of Sacramento River yearling late-fall run Chinook salmon (Oncorhynchus tshawytscha)

Cited by 46 publications

References 27 publications

Development of underwater recorders to quantify predation of juvenile Chinook salmon (Oncorhynchus tshawytscha) in a river environment

Development of underwater recorders to quantify predation of juvenile Chinook salmon (Oncorhynchus tshawytscha) in a river environment

A small long-life acoustic transmitter for studying the behavior of aquatic animals

A summary of the use of electronic tagging to provide insights into salmon migration and survival

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