Survival and drifting patterns of grass carp eggs and larvae in response to interactions with flow and sediment in a laboratory flume

Dates

Publication Date: 2018-11-19
Start Date: 2017-05-01
End Date: 2017-07-11

Citation

Prada, A.F., George, A.E., Stahlschmidt, B.H., Chapman, D.C., and Tinoco, R.O., 2018, Survival and drifting patterns of grass carp eggs and larvae in response to interactions with flow and sediment in a laboratory flume: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZCMK0J.

Summary

A series of laboratory experiments were conducted to better understand the behavior of grass carp eggs and larvae in moving water in order to develop and implement new strategies for control and prediction of their dispersal and drift at early life stages. Settling velocity and density of a representative sample of eggs were estimated, and three trials of flume experiments with different flow conditions were conducted with live eggs in a temperature-controlled setting with a mobile sediment bed. In these trials, egg and larval stages were continuously analyzed over periods of 80 hours; and eggs and larvae interactions with the flow and sediment bed were monitored and characterized qualitatively and quantitatively. Survival rates were [...]

Summary

A series of laboratory experiments were conducted to better understand the behavior of grass carp eggs and larvae in moving water in order to develop and implement new strategies for control and prediction of their dispersal and drift at early life stages. Settling velocity and density of a representative sample of eggs were estimated, and three trials of flume experiments with different flow conditions were conducted with live eggs in a temperature-controlled setting with a mobile sediment bed. In these trials, egg and larval stages were continuously analyzed over periods of 80 hours; and eggs and larvae interactions with the flow and sediment bed were monitored and characterized qualitatively and quantitatively. Survival rates were quantified after each trial, highlighting physical causes for increased mortality. Detailed flow analysis was correlated to the observed drifting and swimming behavior of eggs and larvae, to estimate distributions across the water depth, as well as traveling and swimming speeds. Evidence of the influence of mean and turbulent flow in the suspension and transport of eggs are reported, and swimming patterns of larvae at different developmental stages are described. These findings support the development of new strategies for monitoring the spread of eggs and larvae in rivers, and provide new inputs to predict conditions favorable for spawning and hatching, allowing for mitigation measures at early life stages, which are critical to control their dispersal.

Contacts

Point of Contact :: Amy E George
Originator :: Andres F. Prada, Amy E George, Benjamin H Stahlschmidt, Duane C Chapman, Rafael O. Tinoco
Metadata Contact :: CERC Data Managers
Publisher :: U.S. Geological Survey
Distributor :: U.S. Geological Survey - ScienceBase
USGS Mission Area :: Ecosystems
SDC Data Owner :: Columbia Environmental Research Center

Attached Files

Click on title to download individual files attached to this item.

Flow Conditions.txt		5.06 KB	text/plain
Hrzt Travel Speeds.txt		1.24 KB	text/plain
Settling Column.txt		2.36 KB	text/plain
Survival.txt		126 Bytes	text/plain
Swim Angles.txt		6.22 KB	text/plain
Trajectories.txt		6.58 KB	text/plain
Vert Travel Speeds.txt		836 Bytes	text/plain
Vertical Distributions.txt		395.21 KB	text/plain
Metadata-Survival and drifting patterns of grass carp eggs and larvae i.xml Original FGDC Metadata	View	48.76 KB	application/fgdc+xml

Purpose

To support FluEgg model and make explicit behavior of eggs and larvae within moving water.

Survival and drifting patterns of grass carp eggs and larvae in response to interactions with flow and sediment in a laboratory flume

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