Using vertical distribution to separate fish from crustaceans in a mixed species trawl fishery

Authors: 

Karlsen, J.D., Krag, L.A., Herrmann, B., Lund, H.S.

Year: 

2019

Journal/Publisher Name: 

Canadian Journal of Fisheries and Aquatic Sciences

Publisher Address: 

Volume (Issue #): 

76(10)

Page #s: 

1781-1794

Contact information: 

Tel.: +45 35 88 32 52; Fax: +45 35 88 32 52; e-mail address: jka@aqua.dtu.dk
Summary: 

The study tested the use of a horizontally divided codend with small square mesh (40mm) and a simple frame to stimulate fish to swim into the upper compartment of a separator trawl. The majority of fish were separated successfully from Nephrops norvegicus, but fish preference for both trawl compartments was uniform. Additionally, separation efficiency was lower for small roundfish and flatfish.