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You can help expand this article with text translated from the corresponding article in Dutch. (March 2009) Click [show] for important translation instructions.
Content in this edit is translated from the existing Dutch Wikipedia article at [[:nl:Zand]]; see its history for attribution.{{Translated|nl|Zand}} to the talk page. |
This article was the subject of a Wiki Education Foundation-supported course assignment, between 11 January 2019 and 17 April 2019. Further details are available on the course page. Student editor(s): 1smithmon.
Above undated message substituted from Template:Dashboard.wikiedu.org assignmentbyPrimeBOT (talk) 08:39, 17 January 2022 (UTC)Reply
The Parrotfish article mentions that beaches near present or ancient coral reefs are composed of calcium carbonate particles, not silica, which are the excreta of Parrotfish (especially the Green humphead parrotfish). Coral polyps (Coral, Coral reef, Polyp (zoology)) form the major diet of these fish, eaten along with their calcium carbonate coral substrate, and the excreted pieces of indigestible coral are visible after geologic time has passed as sand. Each adult fish ingests over five tons of structural reef carbonates per year, excreting most of the carbonates. However, this article doesn't even mention parrotfish even once. It is incredible, but true, a major (in my opinion) omission from WP. David Spector (talk) 17:21, 2 January 2023 (UTC)Reply
