Engineering on Coral Reefs with Emphasis on Pacific Reefs, Figure 2
Adverse effects of causeway construction between Lelu and Kosrae islands: (a) Before causeway
construction, fish runs, seagrass beds, a lagoon, a deep reef hole, and offshore reef habitats thrived and supported the main population center at Lelu Island. (b) After
causeway construction, water exchange and fish runs deteriorated; confounding the problem was the haphazard construction of a second causeway for an airfield that
blocked one of the two culverts of the main causeway, exacerbating pollution and sedimentation in the harbor. (c) The main culvert could be un-blocked and
additional culverts installed to restore fish runs and the quality of coral reefs and seagrass habitats.
394
ENGINEERING ON CORAL REEFS WITH EMPHASIS ON PACIFIC REEFS
Adverse effects of causeway construction between Lelu and Kosrae islands: (a) Before causeway
construction, fish runs, seagrass beds, a lagoon, a deep reef hole, and offshore reef habitats thrived and supported the main population center at Lelu Island. (b) After
causeway construction, water exchange and fish runs deteriorated; confounding the problem was the haphazard construction of a second causeway for an airfield that
blocked one of the two culverts of the main causeway, exacerbating pollution and sedimentation in the harbor. (c) The main culvert could be un-blocked and
additional culverts installed to restore fish runs and the quality of coral reefs and seagrass habitats.
394
ENGINEERING ON CORAL REEFS WITH EMPHASIS ON PACIFIC REEFS