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A new species of Paradoneis Hartman, 1965 (Annelida: Paraonidae) from Hawaii with notes on its reproductive strategy

  • Wagner F. Magalhães
  • Julie H. Bailey-Brock
  • Romulo Barroso
Original Paper
  • 58 Downloads

Abstract

A new and abundant species of Paradoneis Hartman, 1965 is described from the vicinities of a sewage outfall in Mamala Bay, Oahu, Hawaii. This species belongs to a group of at least six Paradoneis species that have three prebranchiate segments, modified notopodial lyrate chaetae from chaetiger 3, and lack additional types of modified chaetae. Paradoneis kamaehu sp. nov. is unique among its congeners by the presence of 25–48 pairs of branchiae, reddish-brown body color, peristomium distinct dorsally, and presence of up to two lyrate notopodial chaetae. Epitokes and individuals with regenerating anterior ends are reported and the reproductive strategy of this species is discussed. The capacity of regeneration of the anterior end is reported for the first time in paraonids.

Keywords

Paraonid Epitoky Regeneration Oahu, Mamala Bay 

Notes

Acknowledgements

This is a contributed paper WRRC-CP-2019-13 of the Water Resources Research Center, University of Hawai’i at Mānoa, Honolulu. Specimens collected from Mamala Bay around the Sand Island sewage outfall would not have been available for study without the collecting efforts of the City and County of Honolulu Oceanographic Team and collection permits. Wormlab staff from the University of Hawaii at Manoa have elutriated and sorted the sewage outfall samples over the years. Tina Carvalho from the BEMF supervised the SEM procedures. This manuscript greatly benefitted from editorial review by Dr. Dieter Fiege and two anonymous reviewers.

Funding

This study was funded by the City and County of Honolulu, Department of Environmental Services to Water Resources Research Center, University of Hawaii at Manoa through the project “Biomonitoring of the Marine Communities Near the City’s Ocean Sewage Outfalls off Oahu, Hawaii.”

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed by the authors.”

Sampling and field studies

All necessary permits for sampling and observational field studies have been obtained by the authors from the competent authorities and are mentioned in the acknowledgements, if applicable.

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Copyright information

© Senckenberg Gesellschaft für Naturforschung 2018

Authors and Affiliations

  1. 1.Water Resources Research CenterUniversity of Hawaii at ManoaHonoluluUSA
  2. 2.Department of BiologyUniversity of Hawaii at ManoaHonoluluUSA
  3. 3.Department of BiologyPontifícia Universidade Católica do Rio de JaneiroRio de JaneiroBrazil

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