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Two nurse sharks hover over a baited cage
Lesson Plan

In Hot Water

This lesson combines Life Science and Investigation State Standards as it builds on...
Fri, 11/30/2012 - 10:40
/themes/custom/a_clean_ocean
Algae has overtaken this coral reef off heavily populated Kiritimati, or Christmas Island.
Photo

Unhealthy Coral Reef, Kiritimi, Line Islands

Algae has overtaken this coral reef off heavily populated Kiritimati, or Christmas...
A newly established black mangrove sits in a field of salt marsh near the northern limit of mangroves in Florida. Mangroves have been expanding near their northern limit in Florida and the expansion is linked to a reduction in the frequency of ex
Article

Finding Mangroves In Unexpected Places

Over the past several decades, Florida’s coastal wetlands have been changing....
February 2014
Close-up photograph of translucent coral polyps, showing the symbiotic algae living inside.
slideshow

Zooxanthellae and Coral Bleaching

Tiny plant-like organisms called zooxanthellae live in the tissues of many animals,...
Thu, 12/03/2009 - 12:14
Convict surgeonfish are the roaming sheep of the reef but, instead of noshing on grass, they feed on algae.
Personal Perspectives

Helpful Herbivores

When snorkeling in the Kahekili Herbivore Fisheries Management Area (KHFMA) in West...
June 2013
Neptune grass (Posidonia oceanica) is a slow-growing and long-lived seagrass native to the Mediterranean.
Article

Bugs and Slugs: The Hidden Secret to Healthy Seagrasses

Slip into the water along a sheltered coast in nearly any part of the world and...
May 2015
Seagrasses are flowering plants that can form dense underwater meadows and are an important shallow water habitat.
overview

Seagrass and Seagrass Beds

Seagrasses are found in shallow salty and brackish waters in many parts of the...
April 2018
two mangrove trees in the crashing waves
overview

Mangroves

Mangroves are survivors. With their roots submerged in water, mangrove trees thrive...
April 2018
Sea otters floating on the surface of the ocean.
Article

Not Just Another Fuzzy Face

Who hasn’t grinned at the sight of a sea otter floating on its back while...
May 2017
scientist Drew-Baker reads a book by her microscope
Article

Saving Nori

As an island nation, Japan and its culture are heavily influenced by the sea. It...
April 2021
The vicious "killer shrimp."
Article

Rough Reputation: Are Invasive Species All Bad?

Pick up any news article about invasive species and you may confuse it with a...
February 2015
Sargassum forms dense clumps up to the size of a beach ball that slowly rotate as they drift.
Article

Too Much of a Good Thing—the Atlantic Sargassum Belt

There is a sea in the middle of the Atlantic Ocean where floating rafts of seaweed...
June 2022

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    • Invertebrates
    • Plankton
    • Plants & Algae
    • Microbes
  • Ecosystems
    • Coral Reefs
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    • Coasts & Shallow Water
    • Poles
    • Census of Marine Life
  • Planet Ocean
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    • The Anthropocene
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    • Gulf Oil Spill
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