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Marine Diatom

Chaetoceros sp.


Members of this genus were the most common plankton in this sample. These ones were much larger and noticeable than the others, as they formed really long chains and just seemed to be bigger than most of the other species around. These ones also stood out because their ladder-like formation when grouped together.


A marine biologist on board skimmed some plankton using really fine mesh nets and we took a drop from that sample and placed it under a microscope. The sample was skimmed in Izhut Bay just off Afognak Island in somewhat shallow water (less than 200 feet).

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Spotted by

Alaska, USA

Lat: 58.21, Long: -152.25

Spotted on Sep 19, 2019
Submitted on Nov 1, 2019

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