human impacts on coral reefs

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Human Impacts on Coral Reefs Part 4 The Kane‘ohe Bay Story

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Human Impacts on Coral Reefs. Part 4 The Kane‘ohe Bay Story. Kane‘ohe Bay, O‘ahu. Length =13.5 km Width =4.5 km Shoreline =30.7 km Average Depth =8.4 m. Kane‘ohe Bay. Formation of O‘ahu. Kane‘ohe Bay Watershed. Watershed drains 97 km 2 of land area. - PowerPoint PPT Presentation

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Human Impacts on Coral Reefs

Human Impacts on Coral Reefs

Part 4The Kane‘ohe Bay Story

Part 4The Kane‘ohe Bay Story

Kane‘ohe Bay, O‘ahuKane‘ohe Bay, O‘ahu

Length = 13.5 kmWidth = 4.5 kmShoreline = 30.7 kmAverage Depth = 8.4 m

Length = 13.5 kmWidth = 4.5 kmShoreline = 30.7 kmAverage Depth = 8.4 m

Kane‘ohe BayKane‘ohe Bay

Formation of O‘ahuFormation of O‘ahu

Kane‘ohe BayWatershed

Kane‘ohe BayWatershed

Watershed drains 97 km2 of land area.

Annual rainfall averages 140-240 cm/year.

Total stream discharge rate is 214,000 m3/day.

Watershed drains 97 km2 of land area.

Annual rainfall averages 140-240 cm/year.

Total stream discharge rate is 214,000 m3/day.

http://cramp.wcc.hawaii.edu/Downloads/Publications/OD_JOKIELs_Scientific_Guide_to_K-Bay.pdf

Generalized profile of a fringing reef in Kaneohe Bay

Generalized profile of a patch reef in Kaneohe Bay

Generalized profile of a barrier reef complex in Kaneohe Bay

Flood tide Circulation of Kaneohe Bay

Ebb tide Circulation of Kaneohe Bay

Freshwater Reef KillsFreshwater Reef Kills

Effects of FreshwaterEffects of FreshwaterThe Phoenix Effect

in Porites compressa

The Phoenix Effect

in Porites compressa

Cut surface of a broken finger showing living tissue beneath the

surface of the skeleton

Cut surface of a broken finger showing living tissue beneath the

surface of the skeletonNormal colony next to a colony exposed to

freshwater

Normal colony next to a colony exposed to

freshwater

Effects of FreshwaterEffects of FreshwaterParricidal Budding in

Fungia scutaria

The Phoenix Effect

Parricidal Budding in Fungia scutaria

The Phoenix Effect

Pre-Western Contact ImpactsPre-Western Contact Impacts

Recent History of

Kane‘ohe Bay

Recent History of

Kane‘ohe Bay

Population Growth in Kane‘ohe Area

Population Growth in Kane‘ohe Area

1920: 2,9901940: 5,3871960: 29,6621990: 66,760

1920: 2,9901940: 5,3871960: 29,6621990: 66,760

Year Population size

Recent History of Kane‘ohe

Bay

Recent History of Kane‘ohe

Bay

Recent History of Kane‘ohe

Bay

Recent History of Kane‘ohe

Bay

Bubble AlgaeBubble Algae

Recent History of Kane‘ohe

Bay

Recent History of Kane‘ohe

Bay

Recent History of

Kane‘ohe Bay

Recent History of

Kane‘ohe Bay

Introduced and Invasive Seaweed Species

Introduced and Invasive Seaweed Species