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![Page 1: Work Package 3 Identifying and quantifying the main driving forces of ecosystem changes influencing the aquaculture sector and developing the appropriate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e5e5503460f94b576e5/html5/thumbnails/1.jpg)
Work Package 3
Identifying and quantifying the main driving forces of ecosystem changes influencing the aquaculture sector
and developing the appropriate environmental indicators
ECASA meeting, Florence 8-9/5/2006
University of Crete
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objective 1
to identify and quantitatively assess the role and the relative importance of the different forcing factors: (aquaculture, fisheries, pollution, eutrophication, habitat destruction etc.) and environmental variations affecting the water quality in aquaculture zones and the major ecosystem services provided
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step 1what are the major issues of concern in the marine environment ?
identification of major issues: partners contribution
major issues in different countries/areas experience bibliographic documentation other information sources
literature search EEA reports GOOS reports GESAMP reports
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Global issues of environmental concern in the marine environment
destruction / alteration of habitats
overfishing
sewage and chemical effects on human health and the environment
coastal development
eutrophication / HABs
hydrological and sediment flows changes
global warming
step 1what are the major issues of concern in the marine environment ?
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step 1regional perspectives
Vulnerable areas and systems and the sources of their problem
Coral reefs: eutrophication, sediments, overfishing, destructive fishing,
reef mining, aquarium and curio trade, diseases
Wetlands: reclamation and development, including landfills
Seagrass beds: siltation, coastal development, eutrophication, physical
disturbance
Coastal lagoons: reclamation, pollution
Mangroves: excessive exploitation, clearing for reclamation, development
and aquaculture
Shorelines: development, modification of habitats, erosion
Watersheds: deforestation, soil erosion, pollution, loss of habitats
Estuaries: reduced water flows, siltation, pollution
Small islands: changes in sea level, waste management, pollution
Continental shelves: pollution, fishing, dredging, navigation
Semi-enclosed seas: pollution, coastal development, fishing
Source: GESAMP 2001, A Sea of Trouble
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European seas and their major problems (Source: EEA 2005a)
Baltic Sea: eutrophication / HABS, overfishing, invasive species
Barents Sea: overfishing, pollution from shipping, military activities and
oil extraction
North Sea: food web damages, chemical pollution, coastal development
Celtic-Biscay Shelf Sea: overfishing, habitat destruction, oil drilling
Iberian Coast Sea: hydrological cycles alteration
Mediterranean Sea: coastal erosion, eutrophication hot spots / HABs,
invasive species, fisheries by-catches
Black Sea: overfishing, habitat destruction
step 1regional perspectives
Source: EEA, 2005. The European environment — State and outlook
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step 2driving forces in marine ecosystems: their role and relative importance
Source:
COOP – GOOS, 2003
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interactions: the HOTO tableinteractions: the HOTO table
Source: GOOS, 2001. The Final Design Plan for the HOTO Module of GOOS.Source: GOOS, 2001. The Final Design Plan for the HOTO Module of GOOS.
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HOTO tableinteractionsHOTO tableinteractions
strength1:Strong2:Moderate3:Low
strength1:Strong2:Moderate3:Low
1: pathogens strongly affect Aquaculture
1: wastes strongly affect nutrients
DirectionDirection
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modified HOTO-Table
step 2driving forces in marine ecosystems: their role and relative importance
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ranking of activities with regard to aquaculture
step 2driving forces in marine ecosystems: their role and relative importance
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objective 2
to suggest the best methods for obtaining reference levels and associated indicators useful to monitor the impact of anthropogenic factors on aquaculture
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step 1 the impact of anthropogenic factors on aquaculture
ranking of activities with regard to aquaculture
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step 2estimating reference levels (example)
1.aquaculture is affected by dissolved O2
2.what are the thresholds? (literature review)
3.how often are these thresholds reached in aquaculture?
4.what is the contribution of other uses to this situation?
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municipal wastes industrial wastes agroforestry etc
the research and the quantification of the above is a subject of an IP
step 2estimating reference levels (example)
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step 3identifying risks of anthropogenic impacts on aquaculture
human activities & aquaculture
Shellfish Finfish
Agroforestry 2 2 4,44
Airport effluent 5 5 11,11
Aquaculture 1 1 2,22
Dredging 3 3 6,67
HABs 4 4 8 17,78
Industrial wastes 3 3 6,67
Maritimes 1 3 4 8,89
Municipal wastes 3 3 6 13,33
Salt extraction 3 3 6,67
Storms 1 1 2 4,44
Temperature 3 1 4 8,89
Theft 4 4 8,89
Other 3 1 4 8,89TOTAL 29 16 45 100
(%)
AQUACULTURE TYPE
RISKS Total
Risk assessment for aquaculture in Algavre, Portugal, based on the experience of local farmers.
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step 4recorded risks of anthropogenic impacts on aquaculture
2001 2002 2003 2004 2005 Total %Disease 51 71 62 48 2 234 55.5%Storms 19 14 14 15 14 76 18.0%Predator attack 9 11 13 6 39 9.2%Hatcheries death 11 13 7 7 1 39 9.2%Transportation 6 5 4 1 1 17 4.0%test 4 4 0.9%Storms - equipment 1 1 1 3 0.7%Thermal inversion 3 3 0.7%Unidentified 1 1 2 0.5%Hatcheries low O2 1 1 2 0.5%Illegal actions 1 1 2 0.5%Equipment 1 1 0.2%Total 103 116 104 80 19 422 100.0%
2001 2002 2003 2004 2005 Total %Disease 51 71 62 48 2 234 55.5%Storms 19 14 14 15 14 76 18.0%Predator attack 9 11 13 6 39 9.2%Hatcheries death 11 13 7 7 1 39 9.2%Transportation 6 5 4 1 1 17 4.0%test 4 4 0.9%Storms - equipment 1 1 1 3 0.7%Thermal inversion 3 3 0.7%Unidentified 1 1 2 0.5%Hatcheries low O2 1 1 2 0.5%Illegal actions 1 1 2 0.5%Equipment 1 1 0.2%Total 103 116 104 80 19 422 100.0%
2001 2002 2003 2004 2005 Total %Disease 51 71 62 48 2 234 55.5%Storms 19 14 14 15 14 76 18.0%Predator attack 9 11 13 6 39 9.2%Hatcheries death 11 13 7 7 1 39 9.2%Transportation 6 5 4 1 1 17 4.0%test 4 4 0.9%Storms - equipment 1 1 1 3 0.7%Thermal inversion 3 3 0.7%Unidentified 1 1 2 0.5%Hatcheries low O2 1 1 2 0.5%Illegal actions 1 1 2 0.5%Equipment 1 1 0.2%Total 103 116 104 80 19 422 100.0%
2001 2002 2003 2004 2005 Total %Disease 51 71 62 48 2 234 55.5%Storms 19 14 14 15 14 76 18.0%Predator attack 9 11 13 6 39 9.2%Hatcheries death 11 13 7 7 1 39 9.2%Transportation 6 5 4 1 1 17 4.0%test 4 4 0.9%Storms - equipment 1 1 1 3 0.7%Thermal inversion 3 3 0.7%Unidentified 1 1 2 0.5%Hatcheries low O2 1 1 2 0.5%Illegal actions 1 1 2 0.5%Equipment 1 1 0.2%Total 103 116 104 80 19 422 100.0%
Greece
aquaculture losses (number of cases/events)
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Spain
aquaculture losses (number of cases/events)
step 4recorded risks of anthropogenic impacts on aquaculture
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objective 3
to identify indicators of incompatibilities between uses and/or minimal distances required to avoid conflicts over environmental issues
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PAP/RAC, 1996
objective 3site selection
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objective 3indicators of incompatibilities
Intensive ExtensiveSPATIAL RESOURCES land reclaiming (-) land use (-) land reclaiming (-) coastal land (-) coastal land (-) spawning areas (-)
shipping traffic (-) land reclaiming (-) harbors (-) nurseries (-)millitary zones (-) sailing, bathing (-) artificial reefs (-)dredging (-) fishing (-) fishing zones (-)
historical sites (-)
QUALITY OF ENVIRONMENT pollutants (-) sewage (-) sewage (-)ballast water (-) organic matter (-) antifoulling paints (-) fertilizers (-) nutrients (+) disease transmission (-)warmed water (+) bacteria & viruses(-) pesticides (-) organic matter (+) genetic escape (-)
nutrients (-) organic matter (-) freshwater management (+/-)suspended solids (-)freshwater management (-)
ECONOMY infrastructure (+) market (+) attractio of investment (+/-) infrastructure (+) infrastructure (+) attractio of investment (+)attractio of investment (+/-) infrastructure (+) seasonal employment (+/-) market (+)
local market (+) infrastructure (+)infrastructure (+) fish meal for aquafeeds (+)
SOCIAL RESOURCES living habitats (-) eco tourism (+) internal competition (-)seascape (-) education (+)wildlife (-)
REGULATIONS areas around (-) minicipality (-) protected area (-) sanctuaries for fisheries (+/-)harbours reserved (-) policy (+/-) wild fauna & flora (-)military zones (-) environmental standards (+)
FISHERIESAGRICULTURE
ACTIVITY INDUSTRY & HARBOUR URBANIZATION TOURISM & RECREATION
(+) in favour of aquaculture(-) negative effect on aquaculture PAP/RAC, 1996
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objective 3indicators of incompatibilities
incompatibilities between aquaculture and other usesShellfish Finfish
SPATIAL RESOURCES already established activity (-) already established activity (-) already established activity (-)nurseries (-)artificial reefs (-)fishing zones (-)
QUALITY OF ENVIRONMENT pathogens (-) pathogens (-) pathogens (-)biodiversity (-) waste (-) bioedeposition (-)bioedeposition (-) food faeces (-) anoxia (-)anoxia (-) treatments (-)genetic (-) genetic (-)
carrying capacity wetlands (-) integrated aquaculture systems (+)under (+) underground seawater (-)above (-) holding capacity
under (+)above (-)
ECONOMY market (+)
SOCIAL RESOURCES internal competition (-)education (+)
REGULATIONS licensing or leasing system (+)monitoring (+)
INTERNAL RELATIONSHIPSFINFISH/SHELLFISH REATIONSHIPS
WATER QUANTITY & DYNAMICS
ACTIVITY
(+) in favour of aquaculture(-) negative effect on aquaculture PAP/RAC, 1996
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ICES CM, 1998
objective 3indicators of incompatibilities
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objective 4
to assess indicators of the interactions between aquaculture and other major uses of the coastal zone (fisheries, tourism & recreation, shipping etc)
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objective 4, indicators
synthesis of all data
sources of pressures
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weather-storms frequency of storms, wave-height, fetch openness
disease and parasites production by other farms,water quality issues
predator attack colonies of birds, colonies of seals, nesting beaches
for sea turtles, frequency of dolphins and tunas in the area
source of pressure indicator
WP3 list of indicators
objective 4, indicators
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pollution distance from land based sources
distance from waste discharge points
distance from harbours distance from rivers
distance from major naval routes
other issues distance from fishing grounds distance from touristic facilities distance from houses
source of pressure indicator
WP3 list of indicators
objective 4, indicators
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to identify potential ways for measuring the additional cost caused by external environmental change
objective 5
David Whitmarsh will obtain the synthesis of the available data and will analyse the
associated costs on externalities
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problems – gaps
little quantification of effects/risks
ranking is used instead
problem of scale of effects and relevance to aquaculture zones