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25999B

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Image #   25999B
Name:   Marine, filamentous, centric diatom (Skeletonema costatum)
Copyright:   Copyright 2009 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Marine, filamentous, centric diatom (Skeletonema costatum). Some diatoms form chains of cells to become a filamentous colony. The filamentous diatom genus Skeletonema costatum is composed of individual cells that are centric (cylindrical) in shape and connect to each other by fine silica projections (spines). This species can often form large algal blooms called ""red tides"" that can be detrimental to other marine life. Diatoms are microscopic, unicellular algae that are abundant in marine and fresh water. The body or frustule is composed of two halves which fit tightly together. The cell walls contain silica dioxide (glass) which are preserved in deposits known as diatomaceous earth. Once hardened into rock it is called diatomite and can be used for many purposes including filters, fillers and abrasives. Diatoms occur in huge numbers in plankton and play an important role in marine and fresh water food chains.
Magnification*: x240
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   25999B algae diatom alga 03.01.09 alga bloom alga blooms algae bloom algae blooms algal bloom algal blooms marine red tide red tide red tide bloom red tides red tide blooming red tide alga bloom red tide algae bloom red tide algal bloom filamentous centric colonial diatom centric colonial diatoms centric diatom centric diatoms colonial diatom colonial diatoms diatoms filamentous diatom diatom colonies diatom colony diatom filament diatom filamentous colonies diatom filamentous colony diatom filaments filamentous colonies marine centric frustule SEM Bacillariophyta Coscinodiscineae Bacillariophyceae Heterokonta diatom frustule diatom frustules aquatic eukaryote phytoplankton plankton salt water sea water silica silica skeleton siliceous frustule Heterokontophyta eukaryotes eukaryotic diatom phytoplankton protist protists single cell marine planton salt water phytoplankton salt water plankton saltwater phytoplankton saltwater plankton sea water phytoplankton sea water plankton seawater phytoplankton seawater plankton marine diatom marine diatoms alga photosynthesis algae photosynthesis marine photosynthesis diatomite marine phytoplankton diatomaceous earth Florida marine diatom Florida marine diatoms Florida diatom Florida diatoms centric diatom frustule centric diatom frustules silica dioxide food chain Skeletonema Skeletonema algal bloom Skeletonema costatum Skeletonema red tide

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