Overview

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Fossil species

recent & fossil

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Sea Urchins Protect Coral Reefs

A short note on these prickly pears of the sea. An article I found interesting

Sea urchins off Jamaica’s north coast appear to be making a comeback, states an article in The Dallas Morning News. Furthermore, “scientists discovered many young corals, including hardy and reef-forming types, thriving along with the sea urchins.”

The reefs have been struggling ever since a sea urchin species called Diadema antillarum died off dramatically in 1983 and 1984. Some species of sea urchins control the growth of seaweeds, which if left unchecked can devastate coral reefs.

However, “new studies show that Diadema has sprung back, and corals may be doing the same,” the paper reports. Marine biologist Nancy Knowlton says that the recovery is “the best news to emerge from Caribbean reefs in decades.”

  • References are quoted in the article.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:139Public Records:33
Specimens with Sequences:94Public Species:12
Specimens with Barcodes:87Public BINs:10
Species:18         
Species With Barcodes:17         
          
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Source: Barcode of Life Data Systems (BOLD)

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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Diadematoida

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