Thomas Peschakのインスタグラム(thomaspeschak) - 4月8日 23時43分

Silvertip sharks spend the day in the deep water of channels or along drop offs. Only at dusk do they rise to the surface to hunt on shallower coral reefs. On anchor off the remote Seychelles atoll Aldabra I got to witness this vertical migration most evenings when Silvertip sharks visit the stern of the catamaran. This shark is listed as vulnerable in the IUCN red list and it is estimated that the global population has declined by more than 30% in the last 60 years. These sharks are frequently caught both in high seas fisheries and by coral reef associated artisanal longline vessels in most of the world’s tropical oceans. #sharks #ocean #conservation #diving

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