Small and medium-sized trawl gear in which the mouth is made of a rigid structure and the codend is meshed or consists of a metal grid.
This towed fishing gear, on foot or by boat, acts on the bottom of the sea and aims to catch bivalve molluscs. The gear consists of a net bag and its opening is connected to a rigid structure of varying shape and size equipped, at the bottom, with a panel with or without teeth that revolves the bottom. The bivalves are trapped in a sack or sieve that allows water, sand and mud to escape.
There may be a wooden handle linked to the dredger, longer or shorter depending on whether it is dragging on foot or from a vessel. In shallow water, the cable is short and the fisherman can be fitted with a belt to assist him in trawling.
In the case of a hook from a vessel:
- Maximum width of the mouth: 1,5 m in the north western zone and 1 m in the remaining zones;
- Maximum length of comb´s teeth: 55 mm for Solen marginatus and razor shells; 15 cm. Minimum gap between teeth: 15 mm.
In the case of hand hook, the maximum width of the mouth may not exceed 60 cm and the maximum height of the mouth may not exceed 50 cm. The maximum length of the comb teeth is 15 cm and there should be a minimum tooth gap of 15 mm.
In the case of the hook used from boat the authorized, the mesh size permitted varies depending on species, with a minimum of 30 mm for shell, white clam and striped Venus. .
In the case of hand hook the minimum mesh size is 25 mm.
It is intended for the capture of bivalves.
Area of action
It operates near the coast, usually at depths below 50 m. It is permitted from a minimum depth of 2,5 meters and may not, cumulatively, operate less than 300 meters from the shoreline in concessioned beach areas during the bathing season.
Defined 3 areas of operation (North West, South West and South), the licensed vessels may not operate outside the areas covered by the Registration Captaincy.
No more than two hooks can be used at the same time.
No fishing between 1st May and 15th June. During this period fishing with hand hooks is authorized and only 5 kg of shell can be caught each day.
There are other catch restrictions and permissible maximums per day, varying depending on operating zones.
Ordinance No. 66/2017 of 13th February introduces the twelfth amendment of the Regulation on Trawl Fishing and creates the Monitoring Committee for Hook Fishing.
The general rules on trawl fishing provide for the possibility of establishing specific measures for hook fishing in different areas. So:
North West Zone
Ordinance No. 629/2009 of 8th June 2009 establishes rules applicable to fishing in the North Western Zone, as amended by Ordinance No. 170/2011 of 27th April, as amended by Ordinance No. 170-A/2014 of 27th August and by Ordinance No. 66/2017 of 13th February.
Order No. 9/DG/2020 of April 30, establishes, for biological reasons, for the year 2020, the following interdiction periods:
- North of the parallel that passes through the northern limit of the Captaincy of Aveiro (40 ° 56.0 N) - from 1 to 31 May
- South of the parallel that passes through the northern limit of the Captaincy of Aveiro (40 ° 56.0 N) - from 1 to 30 June.
South West Zone
Ordinance No. 775/2009 of 21st July establishes rules applicable to fishing in the South West.
- From Nazaré (ZPB - L4) to Lagoa de Albufeira (ZPB - L5b) - from 1 to 20 May
- From Lagoa de Albufeira to Sines (ZPB - L6) - from May 21 to June 10.
Ordinance No. 171/2011 of 27th April establishes restrictions on fishing with hooks in the South Zone, as amended by Ordinance No. 170-A/2014 of 27th August and Ordinance No. 66/2017 of 13th February.
Order No. 9/DG/2020 of 30 April, establishes, exceptionally, for biological reasons, that for the year 2020 there will be no period of prohibition on fishing with hooks.