Improved trawling setup for sampling pelagic juvenile fish communities in small inland bodies of water

0494876 - BC 2019 RIV PL eng J - Journal Article
Jůza, Tomáš - Sajdlová, Zuzana - Čech, Martin - Draštík, Vladislav - Kočvara, Luboš - Tušer, Michal - Kubečka, Jan
Improved trawling setup for sampling pelagic juvenile fish communities in small inland bodies of water.
Acta Ichthyologica et Piscatoria. Roč. 48, č. 1 (2018), s. 105-108. ISSN 0137-1592. E-ISSN 1734-1515
R&D Projects: GA MŠMT(CZ) EF16_025/0007417
Institutional support: RVO:60077344
Keywords : catch efficiency * size * fixed-frame trawl * manipulation boat * two-boat setup
OECD category: Ecology
Impact factor: 0.667, year: 2018

Trawling juveniles is an effective method to estimate 0+ fish assemblages in inland bodies of water. Trawlers are usually moved between bodies of water by ground transport, which restricts the size, weight and type of the equipment able to be transported, and as such do not always come equipped with machinery for trawl operation. Having to lift the trawl onto the deck of the trawler after each tow also makes small-scale juvenile trawling time-consuming and personnel intensive and deep water trawling is especially hard work. This study introduces a new two-boat setup for continuous trawling that enables faster and easier operation of the trawl, even in deep water layers, and more accurate distance and depth measurements.
Permanent Link: http://hdl.handle.net/11104/0288123