PLASTIC SOUP - WUR
Transcript of PLASTIC SOUP - WUR
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Martin HeubeckMick MellorEric MeekKeith FaircloughDan TurnerMark GranthamStuart NewsonJane GollanNicole Girard Gilles le GuillouChristine BlaizeEric StienenWouter CourtensMarc vd WalleKees CamphuysenAndré MeijboomDavid FleetNils GuseStefan GartheJohn PedersenHelle SchulzPoul Lindhard HansenPer-Joel AnderssonKare Olav OlsenBergur OlsenJohannes DanielsenJens-Kjeld JensenMaria Dam
PLASTIC SOUP Complexity and Certainty
A seabird view on marine debrisJan van Franeker
and the‘Save the North Sea’Fulmar study group
The Netherlands Ministry of Infrastructure and the
Environment
marine litter = problem
DAMAGE economical
DAMAGE ecological
Northern Fulmar – Fulmarus glacialis
Lesser Black-backed Gull
Northern Fulmar
• numerous, widely distributed, beached birds available• consumes all sorts of litter • feeds exclusively at sea• retains litter in stomach• integrates pollution levels over its oceanic foraging range
Fulmars are
fools ….but because
of that they may be
…
a convenient ‘tool’ for monitoring:
NetherlandsFulmar-Litter
monitoring1982 – 20…
‘North Sea’Fulmar Study
2002-20....
Litter types in Fulmar stomachs
industrialplastic
userplastic
non plasticrubbish
pollutantschemical ?
Average mass ± se of plastics in stomachs of fulmars in the Netherlands (running 5-year arithmetic average for all ages, all plastics)
2007-2011 95% incidence 35 particles/stomach 0.33 gram/stomach
Average mass ± se of industrial and user plastics in stomachs of fulmars in the Netherlands (running 5-year arithmetic average for all ages)
EcoQO on marine litter (plastic) in the North Sea
Quality elementbeached Northern Fulmars
Objective (‘target’):the proportion of Fulmars with more than 0.1g of plastic in the stomach must be less than 10%(all regions, for at least 5 years)
EcoQO Compliance or Performance =the percentage of birds in a sample that have 0.1 g or more plastic mass in the stomach
OSPAR EcoQOs - Ecological Quality Objectives
EcoQO performance Netherlands 1982-2011
North Sea Regional Pattern (EcoQO performance 2005-2009)
The pattern indicates major local pollution sources (rather than ‘background’ from e.g.
Gulf Stream)
The southern area, in particular Channel, is most heavily polluted: ± twice level of that in Scottish Islands.
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Clean Beach Texel 20 April 2005 – Origin (119 items; 15 nationalities)
NETHERLANDS42%
United Kingdom
14%
Germany12 %
France8%
Lituania1%
USA-CanadaTaiwan
Countries of origin
international origin, but dominated by
litter from own region
Clean Beach Texel(20 april 2005):
30 tons of litter removedmain origin shipping and fisheries
(± 1 ton each km)
Canadian Arctic data from Mallory et al. (2006; 2008), Provencher et al 2009 & pers. inf. authors
North Atlantic comparison
“member states shall take the necessary measures to achieve or maintain good environmental status in the marine environment by 2020 at the latest
Litter descriptor:“ properties and quantities of marine litter do not cause harm to the coastal and marine environment”
Indicators for litter descriptor: Trends in quantities on beach, in water and microplastics and in ‘impact of litter on marine life *
* = measured by ingestion by animals as in Fulmar example
European MSFD 2008(Marine Strategy Framework Directive):
in regions where fulmar sampling is not possible other options for bio-monitoring have to be explored
Photo: G.Mauger, Groupe d'Étude des Cétacés du Cotentin - GECCmammals ? turtles ? fishes ? Other birds ?
European Marine Strategy Framework Directive :
North Sea 2007-2011 95% plastic incidence;
0.33 gram per bird Harm ?
Harm ?
HARM?
Fulmar wreck 2004:highly unusual sex & age
compositionserious deficiencies in down
plumage illogical reproductive decisions
Suggesting a disturbed endocrine hormonal system !
Hormonal disruptions are a known effect of the types of contaminants accumulated by fulmars through food and/or plastic ingestion
From Honolulu 2011 5IMDC presentation: Chemicals in marine plastics and risks: a mass mortality incident among fulmars in 2004 showed many characters of hormonal disturbance,
potentially related to plastic ingestion
Foto: Johan Kroll
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Fledglings(n=28)
1st year(n=42)
2nd year(n=21)
immature(n=55)
adult(n=253)
mas
s of p
lasti
c(g
ram
±se
)
Age related differences found in Fulmars from the Faroe Islands (period 2005-2009; n=371) Harm ?
RATE OF BREAKDOWN AND GUT PASSAGE OF PLASTIC IN DIGESTIVE SYSTEMS OF PETRELS ESTIMATED AT 75 % OF AVERAGE STOMAGE CONTENT PER MONTH
‘processed’ = reduced to mm size and below uptake of breakdown products in gut excretion as microplastics, partially in other habitats
Annually, in the North Sea ± 2 million Fulmars
reshape and relocate:
630 million pieces6 ton of plastic
HARM ?
Salko de Wolf, EcoMare
Effects on all marine life and ultimately man are
extremely complex and uncertain !!
G.Mauger, - GECC
Priority Actions
REDUCE – REUSE – RECYCLE Make deposit & return systems legally required: high deposit fees
for ALL products containing plastic must be standard.
Forbid the production of so-called degradable or compostable packaging for both fossil- or bio-sourced
Make strong legislation on toxicity of compounds used in plastic production (also of non-food plastics)
Let plastic be plastic! Create value on plastic ‘waste’
Use common sense in addition to scientific evidence
IMARES
Thank you for
listening !