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The Arctic Ocean Ecosystem

arctic ecosystem

Despite the harsh weather and the ice cover, the Arctic Ocean is teeming with life. It has a complex but abundance ecosystem that supports large predators such as walruses, polar […]

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The Ocean is Earth’s Oxygen Bank

Oxygen is like money for Earth, and the ocean acts like a bank. Deposits are made in three ocean layers: At the surface through exchange with air, in the water, when phytoplankton produce O2 from sunlight and CO2, and on the seafloor where plants and corals live. Withdrawals occur when organisms consume oxygen. Oxygen is tightly connected to life in the ocean, and can tell us a lot about an ecosystem’s health & productivity. This is why we need an ocean oxygen budget. A simple idea, but has been difficult until now.

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Groundwater and the Ocean

Groundwater and the Ocean

Groundwater comes from precipitation that falls on land. Some of this water evaporates into the atmosphere, gets taken up by plants, or flows into streams, but some infiltrates into the […]

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Animals Behaving Like Plants

Animals Behaving Like Plants

Meet a curious single-celled organism called Mesodinium rubrum. They are shaped like “8”s with hairlike cilia around them that they use to swim in the ocean. They usually graze on […]

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Ocean Iron Links

Ocean Iron Links

Many areas of the ocean are nutrient-rich, but lack iron, which fuels the growth of phytoplankton, tiny plant-like organisms that form the base of the ocean food chain and […]

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Bacteria and Diatoms

Bacteria and Diatoms

Bacteria and unicellular marine plants called diatoms depend on each other for some essential nutrients, but they also compete for other nutrients. So life gets complicated in the chemical soup […]

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Snow Globe of Plankton

Snow Globe of Plankton

2018 Summer Student Fellows Maya Chung (Harvard University) and David Brinkley (Amherst College) marvel at a jar of plankton collected from Buzzards Bay in mid-July. The samples were collected […]

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Little Gems

Little Gems

WHOI biologist Scott Lindell examines a container of gametophytes, germinal kelp plants, being prepared for use in a combined aquaculture experiment he is conducting. In six months, the millimeter-long […]

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Competing for Attention

Competing for Attention

The “petals” of these delicate golden “flowers” are actually individual animals. They are clones of colonial invertebrates called star tunicates (Botryllus schlosseri). Tunicates, also known as ascidians or sea […]

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Eyes on Both Coasts

Eyes on Both Coasts

OceanCube is an autonomous underwater coastal observatory that provides real-time data and images from a variety of biological, physical, and chemical sensors. A team from WHOI led by biologist Scott […]

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