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Titel
Shrimp Fishery in the Wadden Sea
Bridging the Gap between Science and a small
scale shrimp fishery in the Wadden Sea of the
German Bight
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Overview

• Shrimp Fishery

• Stakeholder

Shrimp Fishery in the Wadden Sea

• Experience in cooperation

• Case study

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Crangon crangon
Crangon crangon L.

(GB) Brown Shrimp or Common Shrimp (GER)
Nordseekrabbe or Garnele (NL) Garnaal (F) Creve
tte grise (DK) Hestereje or Sandhest
Shrimp Fishery in the Wadden Sea
Distribution from Norway up to the coast of
Morroco and in the Mediterranean
Habitat shallow coastal waters (up to 30 m),
sand or muddy sand, marine or slightly
brackish.
Migration in early spring NS WS in late
autumn WS NS
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Shrimp Fishery
Target species Brown shrimp (no quota) (by
catch sole plaice)

Fishing season Early spring till late autumn
(after night fall)
Fishing gear Beam trawl (8/10m) with rolls
towed on outriggers, one trawl on each side.
Shrimp Fishery in the Wadden Sea
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Shrimp Fishery Preparation/handling
1. Transfer the catch into the funnel

2. Sieving/sorting the catch from by-catch and
smaller individuals
3. Boiling the shrimps for a few minutes
4. Second sorting and keep in a cool place
5. Landing of the catch in the harbour
Shrimp Fishery in the Wadden Sea
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Shrimp Fishery Preparation/handling
the shrimps are treated with preserving agent

carried by truck to Morroco
shelled in factories gt 2000 employees.
a few days later
Shrimp Fishery in the Wadden Sea
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Shrimp Fishery Area/Fishing grounds
Shrimp Fishery in the Wadden Sea
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Shrimp Fishery
Total number of ships in the North Sea appr. 550
boats (2007)
Percentage of the landings in North Sea Fisheries
Shrimp Fishery in the Wadden Sea
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Shrimp Industry Developments Landings
Shrimp Fishery in the Wadden Sea
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Stakeholders
Fisher/Stakeholders

• Uwe Abken Daniel Ahrens, Neuharlingersiel (LS)

Shrimp Fishery in the Wadden Sea

• Dirk Dell Missier
• Hallig Hoge (SH)

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Stakeholder Neuharlingersiel
Polaris NEU 230 Owner Uwe Abken,
Neuharlingersiel Length 18.0
m Wide 4.5 m Draft 1.5 m Engine 221 kw
or 300hp Build 1982 Beam trawls 9.8 m Main
Catch Area Wadden Sea Area and coastal waters of
the East Frisian Islands, North Sea
Shrimp Fishery in the Wadden Sea
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Stakeholder Hallig Hooge
De Liekedeeler, HOO1(Hooge 01) Owner Dirk
dell Missier Length 16.50 m Wide 4.75
m Draft 2.0 m Engine 188 kw or
256 hp Build 1980 Beam trawls 9.0
m Main Catch Area Wadden Sea area and coastal
waters of the North Frisian Islands incl.
Danish coast by appr. 20 m, North Sea
Shrimp Fishery in the Wadden Sea
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Stakeholder Area/National Park
Shrimp Fishery in the Wadden Sea
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Wadden Sea National Park
Nominated to UNESCO World Heritage Site
Protected by law
The Wadden Sea is an area where people
live work and recreate
Shrimp Fishery in the Wadden Sea
in a sustainable way
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Wadden Sea The Wadden Sea is of great importance
as

• A central stopping place for migrating birds, a
  breeding
• and moulting ground for many bird species
• A nursery ground for North Sea fish (plaice)
• A recreation area for hundreds of thousends of
• holidaymakers
• A home for the people living and working here
  for centuries
• (like oure stakeholder)

Shrimp Fishery in the Wadden Sea
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Collaboration Experience
Action
Achievment
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• Introduce GAP1 in a fishery magazine for
  collaboration

• one fisher was interested

• Translate the flyer in German language

• no response!

Shrimp Fishery in the Wadden Sea
-/

• Contact to possible projekt partners,
• e.g. MSC and CENTOS Center for
• Sustainability and Economics
• Management

• Participation at the Slow fisch
• fair in Bremen

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Collaboration Experience
Action
Achievment

• interesting discussions with
• fishermen and other in the fishery
• businness involved persons

• attendance on fishery meetings

Shrimp Fishery in the Wadden Sea

• directly contact
• visit fishermen at the harbours and try to
  accompany when they are fishing

• gain new insights, gain new perspektives,
  learn a lot about shrimp fishery, about the
  problems they have, participate at theire
  knowledge

make new friends
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Case study Brainstorming
Windfarms
Electric beam trawl
High oilprice in the first half of 2008
MPA
Price decline of the shrimps in the second half
of the year
The forthcoming MSC certification
Shrimp Fishery in the Wadden Sea
Winter fishery
Trivial things
Serious problems
High by-catch rates in summer
Climate change
Fishery policy
Daily work is under permanent investigation of
NGOs
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Case study Observed aspects
Climate Change
Increasing numbers of foreign species
Mass occurence of non comercial species
Shrimp Fishery in the Wadden Sea
Extension of the catch season
Decrease of resident species
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Case study Questions
Fishers want to get more information about
Effects of climate change on the Wadden Sea
Will there be new target species?
Shrimp Fishery in the Wadden Sea
How will an expected rise of the water
temperature affect the shrimp stock?
How will it affect diversity?
How can the shrimp fishery respond?
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Case study
ASPECTS OF THE INSHORE AND WADDEN SEA BROWN
SHRIMP FISHERY, WITH A FOCUS ON THE EFFECTS OF
CLIMATE CHANGE
Shrimp Fishery in the Wadden Sea
The Wadden Sea and its residents are facing a
great challenge
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Thank You

Shrimp Fishery in the Wadden Sea
Melanie Bergmann Kai Wätjen Alfred Wegener
Institute for Polar and Marine Research