Bubble Net System to Catch Fish

Matosinhos, 17th June 2011

Global View Over Fisheries

Major Problems

- Increased in global demand and fish comsumption

- Lack of resources

- Marine resources lack of knowledge

- Lack of selective gears

Solutions

- Global aquaculture development

- Environmental responsibility

- Management and administration of resources responsibility

- Sector technological innovation

Bubble Net Feeding

Purse Seine

Bubble Net

State of the Art

Bubble net aerial view Collector detail

Bubble wall Bubble wall

Punctures detail

Purse Sein vs Bubble Net

Variables Purse Sein Bubble net

Cost Cost

Fishing Gear High High

Fishing Gear Maintenance

Very Common Uncommon

Fishing Gear Average Length

4 Years 12 Years

Labor High Moderate

Bycatch Considerable Reduced

Ghost Fishing Considerable Absent

Fuel High Moderate

Fish Quality Moderate High

Discards High Reduced/Absent

Purse Sein vs Bubble Net

Socioeconomics

Costs

Fish quality

Labor conditions

Resource sustainability

Purse Sein vs Bubble Net

Environmental

Bycatch

Ghost fishing

Resource sustainability

“We can not control the wind but we can control the sails.” Popular saying

ESCOLA SUPERIOR DE TURISMO E TECNOLOGIA DO MAR - Campus 4

Santuário Nossa Sr.ª dos Remédios, 2520 - 641 Peniche – PORTUGAL

Tel.:(+ 351) 262 783 607 | Fax.:(+ 351) 262 783 088 E-mail: bubblenet@hotmail.com