The Global Diversity of Sea Pens (Cnidaria: Octocorallia: Pennatulacea)
2011

The Global Diversity of Sea Pens

publication Evidence: moderate

Author Information

Author(s): Gary C. Williams

Primary Institution: California Academy of Sciences

Conclusion

The study provides a comprehensive overview of the diversity and distribution of sea pens, highlighting new discoveries and their ecological significance.

Supporting Evidence

  • Sea pens are found in all oceans, from shallow waters to depths of over 6100 meters.
  • An estimated 200 or more valid species of sea pens exist, showing diverse morphologies and ecological adaptations.
  • Recent advances in exploration technology have enhanced our understanding of marine biodiversity.

Takeaway

Sea pens are a type of sea creature that look like feathers and can be found in oceans all over the world. This study helps us understand how many different kinds there are and where they live.

Methodology

The author conducted field observations and collections of living pennatulaceans using SCUBA diving, deep-water dredging, and ROVs over three decades.

Limitations

The study may not cover all species due to the vastness of marine environments and the challenges in accessing deep-sea habitats.

Digital Object Identifier (DOI)

10.1371/journal.pone.0022747

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