bubble net project
DESCRIPTION
System to Catch Fish PresentationTRANSCRIPT
SystemSystemSystemSystem to�to�to�to�catchcatchcatchcatch fishfishfishfish
Global�Global�Global�Global�ViewViewViewView OverOverOverOver FisheriesFisheriesFisheriesFisheries
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
BubbleBubbleBubbleBubble Net�Net�Net�Net�FeedingFeedingFeedingFeeding
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.
StateStateStateState ofofofof ArtArtArtArt
Bubble net aerial view Collector detail
Bubble wallBubble wall
Punctures detail
PursePursePursePurse SeineSeineSeineSeine
Purse seine gears have some serious problems which are intended to be solve
Physical stress caused by nets
High number of rejections
Hard handwork labour
Handling excess
PursePursePursePurse SeinSeinSeinSein vs�vs�vs�vs�BubbleBubbleBubbleBubble NetNetNetNet
Reduced/AbsentHighDiscards
HighModerateFish Quality
ModerateHighFuel
AbsentConsiderableGhost Fishing
ReducedConsiderableBycatch
ModerateHighLabor
12 Years4 YearsFishing Gear
Average Length
UncommonVery CommonFishing Gear
Maintenance
HighHighFishing Gear
CostCost
Bubble netPurse SeinVariables
PursePursePursePurse SeinSeinSeinSein vs�vs�vs�vs�BubbleBubbleBubbleBubble NetNetNetNet
Socioeconomics
Costs
Fish quality
Labor conditions
Resource sustainability
PursePursePursePurse SeinSeinSeinSein vs�vs�vs�vs�BubbleBubbleBubbleBubble NetNetNetNet
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: [email protected]
www.wix.com/bubblenet/promar