Collection Sites
Here are pictures of some of the collection sites.
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Perrault Bog |
This acidic environment was a hotspot for algal diversity. |
Algal scum contained many desmids and cyanobacteria. |
Batrachospermum was visible near the bank. |
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Perrault Lake |
In contrast, the nearby lake contained a similar algal community to other lakes on the Keweenaw Peninsula. |
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Keweenaw Waterway at MTU |
Similar to these lakes, the plankton of this shipping canal was dominated by diatoms. |
But submerged rocks along the bank supported various filamentous green algae and diatoms. |
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Dollar Bay |
In contrast to the connecting Keweenaw Waterway, this inlet contained much higher algal diversity, |
including several planktonic chlorophytes that were rarely encountered elsewhere. |
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pond at Moyle Concrete |
Smaller ponds typically contained more distinct algal communities, unlike most of the larger lakes. |
In this pond, Chara was observed near the bank with structures for sexual reproduction. |
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pond adjacent to Osceola Rd |
The plankton of these ponds were dominated by Dinobryon and not much of anything else, |
regardless of which side of the road was sampled. |
But new inhabitants were encountered in spring. |
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swampy area at Osceola ponds |
Adjacent swampy areas contained higher diversity and some distinct forms, |
among plant debris in shallow water. |
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pond on Peepsock Trail |
Aquatic plants covered the bottom of this shallow and productive pond, |
and a film of slimy Spirogyra accumulated near the shore. |
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Peepsock drainage stream |
Its discharge contained a characteristic community as well, |
particularly an abundance of Trachelomonas and Peridinium among the aquatic plants. |
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| puddles at Arnheim sloughs |
Moreover, nearby isolated puddles contained some unique taxa that weren't seen elsewhere, |
and even Mallards took refuge there. |
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Pilgrim River |
Flowing waters generally lack phytoplankton, |
but the brown scum on submerged rocks contained many diatoms, |
and aquatic plants in the gradual flow of the lower reaches also contained algae. |
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Gratiot River |
Clear water riffles of this river contained algae as well, |
particularly tuffs of Spirogyra |
and mats of Oscillatoria. |
| Cole's Creek |
In the swifter moving waters of this creek, |
Cladophora and Vaucheria were found attached to the rocky substrate and on logs. |
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ditch outside of Swedetown |
The unique habitats of smaller water bodies sometimes supported distinct forms. |
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ditch at Superior Block |
So I sampled tiny ditches and puddles, some ephemeral, as well as larger lakes and rivers. |
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