Responses of estuaries to natural and ... - University of Hull

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SPM (g m -3 ) 120 100 80 60 40 20 0 red: y = 1.11x + 28.49 R 2 = 0.83 de Jonge & de Jong, 2003 black: y = 36.90e 0.02x R 2 = 0.89 0 10 20 30 40 50 60 km dredging
36.9 e non-linear > 2-fold increase Y= 36.9e 0.016x R 2 = 0.89 R = 0.94 NIET MEEGENOMEN Dredging & SPM: Non-linear system response Possibly due <strong>to</strong> amplified erosion-sedimentation cycle de Jonge 1983
Page 1 and 2: Responses of estuaries to natural a
Page 3 and 4: DPSIR Approach Driving forces (huma
Page 5 and 6: The endless loop Ecology Fysische s
Page 7 and 8: Science, information & data needs f
Page 9 and 10: atural factors natural variation (n
Page 11 and 12: Wind & SPM: ‘noise’ to the one
Page 13: Response area (> 100 km away) Marsd
Page 17 and 18: SPM SPM (g m -3 g m 100 ) -3 ) 120.
Page 19 and 20: North Sea tidal import & accumulati
Page 21 and 22: ocess level
Page 23 and 24: De Jonge & Elliott 2001
Page 25 and 26: ue to management easures in 1990 th
Page 30 and 31: Concentration (mg-N m -2 ) Hysteres
Page 32 and 33: Stable versus unstable conditions S
Page 34 and 35: oelke et al. 004 Biovolume, µm 3 l
Page 36 and 37: Ascendency vs. Overhead (“Organiz
Page 38 and 39: Overhead (“disorder”) Measure o
Page 40 and 41: • High variability intrinsic to t
Page 42 and 43: undamental & Applied Sciences Polic
Page 44 and 45: ppealing results: Convert in . indi
Page 46 and 47: Traditional Threats (a) vs. Emergin
Page 48 and 49: Soluble (a) vs Insoluble (b) proble
Page 50 and 51: Obtaining Data & Information for Ma
Page 52 and 53: Threats & Challenges e.g. #1: • l
Page 54 and 55: Cumulative Species Nos. 120 100 80
Page 56 and 57: CONDITIONS SYMPTOMS CONSEQUENCES LI
Page 58 and 59: Changes as a response to management
Page 60 and 61: Determining Unhealthy Systems? Medi
Page 62 and 63: Ecosystem health - V-O-R Approach,
Page 64 and 65:
Example hypotheses for future study
Page 66 and 67:
Define conceptual models of change
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From Indicators to Classification S
Page 70 and 71:
Habitat Loss: • Permanent - remov
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Land Claim - still occurring: Encro
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Threats & Challenges #2: • large-
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Priority - ‘dry feet’ first the
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coastal adjustment set-back/ manage
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‘Win-win-win situation’ Photos:
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Future - biodiversity change: • D
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Challenge - not just assessing nega
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Challenge - to determine relative e
Page 89 and 90:
Policy strategies, development, mer
Page 91 and 92:
US - Level of expression of symptom
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Mitigation (‘to make less severe
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The Estuary & Coast - Major Legisla
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Understanding & Managing Estuarine
Page 99:
Ultimate Aim: “Give us the tools
Page 102 and 103:
Harris, G., 2004. The challenge of
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