Adaptive strategy of the Porcellanasterid sea stars
- Authors: Mironov A.N.1, Dilman A.B.1, Vladychenskaya I.P.2, Petrov N.B.2
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Affiliations:
- Shirshov Institute of Oceanology
- Belozerskii Institute of Physicochemical Biology
- Issue: Vol 43, No 6 (2016)
- Pages: 503-516
- Section: Conference Materials
- URL: https://journals.rcsi.science/1062-3590/article/view/181679
- DOI: https://doi.org/10.1134/S106235901606011X
- ID: 181679
Cite item
Abstract
Morphological–functional analysis suggests that the adaptations of sea stars of the family Porcellanasteridae to burrowing and deposit feeding are related to morphological simplification. This simplification led to reduction of the morphological structures responsible for respiration (papulae and paxillae), decrease in the number of cribriform organs, reduction of body size, and retention of juvenile characters by adults. The forced-circulation water system inside the burrow also changes. The water generated by the cribriform organs becomes upwardly directed. The adaptive strategy in the family is characterized by intensification of nonselective deposit feeding by means of active moving within the muddy sediment and removal of fecal materials from the burrow.
About the authors
A. N. Mironov
Shirshov Institute of Oceanology
Email: akrayushk@mail.ru
Russian Federation, pr. Nakhimovskii 36, Moscow, 117997
A. B. Dilman
Shirshov Institute of Oceanology
Author for correspondence.
Email: akrayushk@mail.ru
Russian Federation, pr. Nakhimovskii 36, Moscow, 117997
I. P. Vladychenskaya
Belozerskii Institute of Physicochemical Biology
Email: akrayushk@mail.ru
Russian Federation, Leninskie gory 1, bld. 40, Moscow, 119992
N. B. Petrov
Belozerskii Institute of Physicochemical Biology
Email: akrayushk@mail.ru
Russian Federation, Leninskie gory 1, bld. 40, Moscow, 119992