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Decades of Environmental Monitoring in Coastal Regions

Comprehensive analysis of coastal data over the past 30 years, covering various aspects such as river conditions, reef health, fish capture, and habitat measures.

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Decades of Environmental Monitoring in Coastal Regions

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  1. Exemplary slide Beach use, hrs/wk, last 20 yrs Means of 20 interviews per month Data source My estimate of uncertainty is offered for perspective 60 Certainty 2 1985 2005 1995 Jan Dec

  2. Left & right bank riparian condition by river km; mean of 3 years, optimal =50 45 3.5 0 30 River km

  3. Reef fish capture, kg/yr, last 30 yrs 1400 kg 3 1980 2009

  4. 4.5 Stream chemistry River km River km Water chemistry as mean of last 5 years. Stations are every 5 km; all variables normalized to most upstream condition, so first point is always 100%. River km River km

  5. Reef health over last 5 yrs; best is 100 Nine, 50 m transects, perpendicular to shore 100 4.5 Shore 50 m

  6. Calabash river fish over last 5 yrs Electrofishing data; fish diversity in 10 m reach by river Km 7.00 3 1980 2009 2000 20 km Mouth

  7. Wetland ecology over last 30 years Mean of four transects per year 6.00 2 1980 2009

  8. Stream habitat over last 20 yrs Mean of three Habitat Measures per year, per site; 50 is optimal 4.5 1995 2005 1985 20 km River km Mouth

  9. Reef sedimentation rates over 25 yrs Mean of 100 measures per site per year, as % of reef covered. Transects run downstream from the Wagwater River. 1995 3 2005 1990 2009 2000 0 (Wagwater) 5 km

  10. Calabash river invertebrate diversity over 30 yrs Benthic diversity in 1 m2 plots by river KM 7.00 5 2009 1990 1980 2000 20 River km 0

  11. Marine chemistry over last 10 yrs 2 year intervals; monthly grab samples 10 m off the center of the beach 4 2008 1998 1998 2008 1998 2008 1998 2008

  12. Stream discharge, cms, last 5 yrs Mean of 5 years, bi weekly samples 4.5 5 1 Dec 1 Jan

  13. Reservoir chemistry over last 5 yrs 5-yr mean of monthly grab samples from the dam Turbidity 4.5 DO Nitrate Ortho P Jan Dec

  14. Fishing pressure, hrs/mo over 20 yrs Means of 20 interviews per month 90 1.5 1985 1995 2005 Jan Dec

  15. Fishing success, kg/10 hrs, over last 20 yrs Means of 20 interviews per month 120 1 1985 1995 2005 Jan Dec

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