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

ABSTRACT: A series of laboratory experiments was 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

SUBMITTER: Prada AF 

PROVIDER: S-EPMC6300213 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature