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Artikel-artikel mengenai Marine ecosystems

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Blue sharks, which are prized for their fins, swimming off Cape Point in South Africa. Morne Hardenberg

South Africa’s plan to protect sharks needs an urgent update

Sharks grow slowly and produce few young compared to bony fishes. In many cases, this means that their populations are fished out faster than can be replenished if not well managed.
Tampa Bay’s sea grass meadows need sunlight to thrive. Algae blooms block that light and can be toxic to marine life. Joe Whalen Caulerpa/Tampa Bay Estuary Program via Unsplash

Water being pumped into Tampa Bay could cause a massive algae bloom, putting fragile manatee and fish habitats at risk

Harmful algae blooms are an increasing problem in Florida. Once nutrients are in the water to fuel them, little can be done to stop the growth, and the results can be devastating for marine life.
Some lakes in the Arctic are expanding and others are disappearing as permafrost thaws. This lake north of Inuvik, N.W.T., is expanding as the ice wedges (darker lines leading away from the lake) around this lake melt and the ground subsides. (Philip Marsh)

Collapsing permafrost is transforming Arctic lakes, ponds and streams

Hundreds of thousands of lakes, rivers and streams in the Arctic exist only because of the permafrost that lies beneath them. The warming Arctic threatens to change that.
A whale shark, the only fully protected shark species in Indonesia, swims under a fishing net. Paul Cowell/shutterstock

Why it is important to regulate shark fisheries in Indonesia

Shark fisheries in Indonesia are an important economic resource in several areas. Hence, stronger regulations are needed to prevent declines in shark population.

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