Interactive Data Story
Our Blue Planet's Refuges
This piece explores how marine protected areas are distributed across the Central Pacific and what protection can look like on the ground in Hawaii. It combines WDPA boundaries, Reef Check observations, and case-study comparisons in a single scrollytelling experience.
A Pacific-Scale View
The map opens with marine protected area boundaries from the World Database on Protected Areas. These polygons represent legal designations created by governments and conservation agencies, offering a broad picture of where marine protection exists across the Pacific.
Designation Matters
Protected areas do not all operate the same way. Some are marine parks, some are reserves, and others use different regulatory structures. Turn on Color by Designation to separate those categories and see how uneven protection looks at a glance.
Strict Protection
The strongest conservation rules usually appear in no-take zones, where extractive activities like fishing or mining are restricted. Turn on Highlight No Take to trace the places with the strictest protections.
What Happens in Hawaii?
The second half of the project narrows from regional context to local outcomes. Looking closely at Hawaii makes it easier to compare protected and unprotected sites, and to ask where regulation appears to align with healthier marine conditions.
Protection Over Time
Hawaii's marine protected areas were established across many decades rather than in a single wave. The timeline shows how protection accumulated over time and sets up the site-by-site comparisons that follow.
Arch Cave and Sharkfin
The first comparison zooms to the Big Island, where two nearby sites help show how protection status and visitor pressure can shape different outcomes.
Reading the Comparison
Arch Cave East sits near Keahole Point and benefits from formal protection.
Sharkfin Rock is a popular snorkeling location without the same level of protection, making it a useful contrast when looking at marine-life observations.
Hulopoe Bay and Barge Harbor
On Lanai, the contrast is less about proximity and more about management style. The two sites reflect very different patterns of recreation, access, and disturbance.
Managed Access vs. Heavy Use
Hulopoe Bay is closely managed and better known for regulated recreation.
Barge Harbor has historically seen heavier commercial and fishing activity, which makes it a useful comparison point when reading coral and habitat indicators.
Rabbi's Reef and Dotti's Reef
The final case study returns to the Kona coast and adds another complication: not every ecological difference can be explained by protection status alone.
Protection Is Not the Only Variable
Rabbi's Reef is a protected mooring site with limited overnight disturbance.
Dotti's Reef remains open and less regulated, but shoreline terrain may also influence the marine-life patterns shown here.
The comparison is a reminder that reef health is shaped by both policy and place.
The Broader Pattern
The interactive charts pull back from individual stories and compare larger patterns in the dataset. Start with species diversity to see how protected and unprotected sites separate when the observations are grouped together.
Depth and Bleaching
Reef stress is not explained by protection alone. Use the controls in the depth view to compare how bleaching patterns shift across different depths and site conditions.
Environmental Context
The final charts make it easier to explore relationships between protection, accessibility, terrain, and habitat health. Drag across the views to compare groups and look for patterns that are easy to miss in a single chart.
Explore the Map
The project focuses on the Central Pacific and uses simplified marine protected area boundaries so the web map remains responsive.
The boundaries are approximate and are included for interpretation rather than navigation.
Reef Check observations are volunteer-collected, which means some locations have deeper coverage than others.
That unevenness matters and should be kept in mind while exploring the final view.