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Nephrops trawl discard reduction using activating selection grids

Objective

The overall objective of the project is to develop a semi-rigid grid system to reduce the by-catch of fish and immature Nephrops (Nephrops norvegicus) from Nephrops trawl fisheries. The Northern North sea, Southern North sea, and the Aegean sea will be targeted. Species and size selection will be employed to reduce discard levels.

Key Objectives.

1. To develop a primary grid system to separate fish from Nephrops.

2. To develop a secondary grid system to release immature Nephrops.

3. To conduct fishing trials with a view to confirming discard reduction.

4. To inform industry and receive advice from industry about the commercial viability of the research

INTRODUCTION

The fishery, whilst having a high economic value, suffers from a large by-catch of undersize commercial fish species and other organisms. This can be up to half the live caught, comprising of a mix of un-wanted fish and under size Nephrops which can be as much as 60% by number for Nephrops discards. The reason for this high level of discarding is attributable the smaller mesh sizes permitted in Nephrops trawls as compared to white fish trawls. These fisheries can occur on the same grounds and a white fish by-catch limits often applies to Nephrops trawl fisheries.

Coordinator

UNIVERSITY OF NEWCASTLE UPON TYNE
Address
Cullercoats
NE30 4PZ North Shields
United Kingdom

Participants (4)

Fisheries Research Services
United Kingdom
Address
Victoria Road
AB11 9DB Aberdeen
MINISTERIE VAN MIDDENSTAND EN LANDBOUW
Belgium
Address
Ankerstraat 1
Oostende
NATIONAL AGRICULTURAL RESEARCH FOUNDATION
Greece
Address
Nea Peramos
Kavala
University of Lincolnshire and Humberside
United Kingdom
Address
61 Bargate
DN34 5AA Grimsby