Madeira dive survey finds more marine diversity inside Garajau's protected area
Scientists comparing sites inside and outside the Garajau Marine Nature Reserve reported greater biodiversity in the protected waters during preliminary dives.
Archived after its publication day. Search retains this original briefing for background and accountability.
Archived 12 September 2026The observation supports the value of protection, but it is an early field finding rather than a completed population estimate or new access rule.
- Teams sampled at depths of 10 and 20 metres inside and outside the reserve.
- The unprotected comparison sites showed fewer species in the preliminary observation.
- The wider Madeira Ocean expedition runs through October with more than 100 scientists and about 200 participants.
A direct comparison in the water
Scientific divers are using comparable depths and locations to examine how protected and unprotected areas differ. The initial observation is biologically meaningful, but full analysis is needed before drawing precise trend or abundance conclusions.
Conditions, habitat and sampling effort can influence what a team sees on a dive. The final research should explain the method and uncertainty.
Protection rules still come from authorities
A research expedition does not itself change fishing, anchoring, diving or visitor rules. Users of the reserve should follow the current official zoning and operator instructions.
Divers should also check sea conditions, qualifications and site-specific safety. Conservation interest is not a substitute for a safe dive plan.
What you can do now.
- 01
Treat the finding as preliminary until the research is published.
- 02
Follow current reserve and operator rules.
- 03
Check sea conditions and dive-safety requirements before entering the water.
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