Fish behaviour in responce to a midwater trawl footrope in temperate reservoirs

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F15%3A00443148" target="_blank" >RIV/60077344:_____/15:00443148 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.fishres.2015.06.025" target="_blank" >http://dx.doi.org/10.1016/j.fishres.2015.06.025</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fishres.2015.06.025" target="_blank" >10.1016/j.fishres.2015.06.025</a>

Result language

angličtina

Original language name

Fish behaviour in responce to a midwater trawl footrope in temperate reservoirs

Original language description

This study addresses fish behaviour at the mouth of a midwater trawl in two temperate reservoirs. Fish distribution and behaviour were monitored using a SIMRAD EK60 (38 kHz) split-beam echosounder with the transducer deployed at the water surface, attached to the surface trawl headrope. We were able to describe day and night patterns of vertical distribution of fish in the reservoirs, describe fish behaviour near the footrope (i.e. vertical swimming velocity, fish tortuosity, vertical direction of swimming), and find the proportion of fish performing avoidance reactions. Significant differences were found between day and night distributions and behaviours. In total, only 35 of the 1514 acoustically recorded fish performed apparent avoidance behaviour.Twenty-seven avoidance reactions were observed in the day (6.3-% of total fish) while eight were observed at night (0.7-% of total fish). Fish were more active in the daytime, while tending to stay still in the water column with no observ

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

—

Project

<a href="/en/project/EE2.3.20.0204" target="_blank" >EE2.3.20.0204: Centre for Ecological Potential of Fish Communities in Reservoirs and Lakes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fisheries Research

ISSN

0165-7836

e-ISSN

—

Volume of the periodical

172

Issue of the periodical within the volume

December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

105-113

UT code for WoS article

000362138700013

EID of the result in the Scopus database

2-s2.0-84937916402