Changes in Body Proportions during Growth of the Hydrothermal Vestimentiferan Oasisia alvinae Jones 1985 (Annelida, Siboglinidae)
During the growth of hydrothermal vestimentiferan Oasisia alvinae the trunk part of body was found to be elongated (from 51 to 83.4% of the overall body length), while the relative dimensions of all other body regions decreased. This was related to the enhanced trophosome and gonad development in the trunk part. We suppose that predominant trunk growth is a common feature of all vestimentiferans.
We are deeply grateful to Dr. S. V. Galkin (leading researcher of the Shirshov Institute of Oceanology, Russian Academy of Science) for the provision of the material.
The study was supported by the Russian Science Foundation, project no. 18-14-00141.
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Conflict of interests. The authors declare that they have no conflict of interest.
Statement on the welfare of animals. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
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