System to catch fish
Global View Over Fisheries Major Problems - Increased in global demand and fish consumption - 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 Humpback whales migrate to Alaska in Spring-Summer and practice an unusual group feeding behaviour in which a group of whales work together to capture large school of herring. A whale dives and the bubbles are released in a cascade around the school of fish, to keep them from escaping.
The school of fish are kept together and upwards. Once the fish are in the surface the whales lunge their enormous mouths wide open and swallows as many fish as they can.
State of Art
Bubble net aerial view
Collector detail
Bubble wall Bubble wall
Punctures detail
Purse Seine Purse seine gears have some serious problems which are intended to be solve
Hard handwork labour Handling excess
Physical stress caused by nets High number of rejections
Purse Sein vs Bubble Net 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
Variables
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, E-mail: bubblenet@hotmail.com 2520 - 641 Peniche – PORTUGAL www.wix.com/bubblenet/promar Tel.:(+ 351) 262 783 607 | Fax.:(+ 351) 262 783 088