The SilicaSecchiDisk provides tools for research on scaled chrysophytes and diatomsextensive limnological database, educational aids for the study of freshwater algae, and serves as the primary outlet for the distribution of data and information generated by the Freshwater Ecology Laboratory, Connecticut College, under the direction of Dr. Peter A. Siver. The SilicaSecchiDisk is the home site for the “Giraffe Pipe Eocene Project” and the Biotic Survey and Inventory Project on “Scaled Chrysophytes and Diatoms in Seepage Lakes Along the Coast of the United States” both sponsored by the National Science Foundation. The primary components of the site include:

Limnological Projects

The focus of this component of the SilicaSecchiDisk is to provide an interactivesearchable database of chemical, physical and morphological data on lakes, ponds and otherwaterbodies examined by scientists at the Freshwater Ecology Laboratory. When possible,information on and GIS-based maps of the watershed are also provided. Ultimately, our goalis to expand the site to include similar information on a much larger number of lakes across theUnited States. The databases can be searched by geographic location, lake name and location,or any chemical or physical parameters. In the geographic location option the user simplyselects waterbodies either from maps or from corresponding lists of lake names. The user canalso submit custom searches based on any parameter or group of parameters desired.

Limno-US

Algal-Ed: Educational Projects

The goal of ALGAL-ED is to provide educational tools for the student interested in freshwater algae. The target audience for ALGAL-ED includes high schooland undergraduate students and professional aquatic scientists. ALGAL-ED includes an image library, genera description pages, a taxonomic key to common freshwater genera, a movie library and links to other useful web sites. Please send comments and suggestions to Peter A. Siver at pasiv@conncoll.edu

ALGAL-ED

Giraffe Pipe Eocene Project

The primary objective of this project is to inventory siliceous microfossil remains from an ancient Eocene maar lake that existed near the Arctic Circle in northern Canada during the Cenozoic hot house. The lake was situated within a crater formed from an explosion that occurred during emplacement of a kimberlite deposit.We plan to identify, image and inventory all chrysophyte, diatom, testate amoeba, heliozoan and sponge microfossils from the site and use the remains to examine the paleoenvironment of this ancient lake ecosystem and evolutionary histories of the organisms.

Giraffe Pipe Eocene Project

Biotic Survey and Inventory Project

This component of the SilicaSecchiDisk providesinformation and findings on our biotic inventories of scaled chrysophytes and diatoms in seepagelakes along the east coast of the United States. Primary geographic regions in the study includewaterbodies in the Ocala National Forest (Florida), the Pocosin Wildlife Refuge (NorthCarolina), the Croatan National Forest (North Carolina), the Bladen Lakes State Forest (NorthCarolina), Cape Cod (including the Cape Cod National Seashore), the China Lakes Region(Maine), Acadia National Park (Maine), the Moosehorn National Wildlife Refuge (Maine),Assateague Island National Seashore (Maryland) and the New Jersey Pine Barrens. In addition, we provide a page of links to other interesting Biotic Survey and Inventory projects.

Biotic Survey and Inventory Project

Center for Research on Scaled Chrysophytes

The goal of the Center for Researchon Scaled Chrysophytes is to provide a set of interactive tools to aid scientists using scaledchrysophytes in their research endeavors. The components of the Center include an imagelibrary, ecological data, interactive database search capabilities, interactive taxonomic keyslinked to the databases, a literature database and links to new taxa originally described byPeter A. Siver. Currently the focus of the site is on common taxa from North America and onimages taken with SEM. Ultimately, we hope to include LM, SEM, and TEM images of all taxa.Some components of the Center are under construction.

Center for Research on Scaled Chrysophytes