A massive late-stage algal bloom on Upper Klamath Lake. The turquoise color is algal pigments being released during cell death. Photo provided by OSU College of Science.

algae invasion, lindisfarne, northumberland, uk

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Algae on a Great Barrier Reef inshore reef (Photo: DR Bellwood).

0716 Sport b. Plugged Live Concert

The brilliant algae covering the moving stream that carries the hot water from the source to the hot pools

Boes.

Phytoplankton I culture for feeding my display tank.

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Model: Roxanne Friedmann

Lighting:

2 Fill Lights, Blue and Forest Green gels

Aaron Wolf Baum's algae farm

back alley, Norwich, Norfolk, England, UK

We read about Linville Caverns on Trip Advisor and it sounded pretty good, so Heather, my brother Jim, and I decided to check it out. The caverns were a bit on the small side and had to be the wettest caverns we've ever visited - we were soaked by all the dripping. There wasn't a lot of formations but it was a good place to check out, at least once.

I took these photos on 1 May 2015

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8x10 pinhole. Same position as last shot, but a couple feet above the ground so that perspective is more normal.

Efke IR820 with 25a medium red filter and about a 2.5 minute exposure. Developed in Rodinal 1+50 for 10 minutes (drum).

Potamogeton pusillus

Spirogyra algae magnified 100X

Lake Menomin in Menomonie Wisconsin was overwhelmed with a blue-green algae bloom that caused the water to become toxic.

Pitt-Addington Marsh Wildlife Management Area sample (watchtower),60x/1.2*1.25,FLUO-C4

Socks designed by Kate Atherley

A lovely color display made by algae growing at the margins of a geyser in Sajama National Park, Bolivia.

Anilo, Philippines

Algae consuming a fly in a small pool. Enchanted Rock State Park, Texas.

My first go with a ND4 and ND8 soft grad.

15s @ f9 ISO 100

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blooms suddenly in first warm weather but quickly clears