Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India

Starfish Astropecten indicus was collected from bycatch landings at Mudasalodai fishing harbour, Tamil Nadu (India) in November 2011. Totally 134 specimens collected among three specimens (2,2%) have abnormally developed four and six arms. Normally, A. indicus has five arms and the deviation from pe...

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Main Authors: PRABHU kOLANDHASAMY, Bragadeeswaran Subramanian
Format: Article
Language:English
Published: Universidade Federal de Santa Catarina 2012-08-01
Series:Biotemas
Subjects:
Online Access:https://periodicos.ufsc.br/index.php/biotemas/article/view/23480
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author PRABHU kOLANDHASAMY
Bragadeeswaran Subramanian
author_facet PRABHU kOLANDHASAMY
Bragadeeswaran Subramanian
author_sort PRABHU kOLANDHASAMY
collection DOAJ
description Starfish Astropecten indicus was collected from bycatch landings at Mudasalodai fishing harbour, Tamil Nadu (India) in November 2011. Totally 134 specimens collected among three specimens (2,2%) have abnormally developed four and six arms. Normally, A. indicus has five arms and the deviation from pentamerism is a rare phenomenon in starfishes. The present observations suggest that deviations from pentamerism are not a heritable character but are a consequence of environmental perturbations on the metamorphosis of larvae and/or abnormal regeneration of arms.
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spelling doaj.art-451369f9f1e444848e743036d2f623332022-12-21T19:10:18ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432175-79252012-08-0125429329610.5007/2175-7925.2012v25n4p29318608Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of IndiaPRABHU kOLANDHASAMYBragadeeswaran SubramanianStarfish Astropecten indicus was collected from bycatch landings at Mudasalodai fishing harbour, Tamil Nadu (India) in November 2011. Totally 134 specimens collected among three specimens (2,2%) have abnormally developed four and six arms. Normally, A. indicus has five arms and the deviation from pentamerism is a rare phenomenon in starfishes. The present observations suggest that deviations from pentamerism are not a heritable character but are a consequence of environmental perturbations on the metamorphosis of larvae and/or abnormal regeneration of arms.https://periodicos.ufsc.br/index.php/biotemas/article/view/23480Abnormal regenerationPentamerismStarfish
spellingShingle PRABHU kOLANDHASAMY
Bragadeeswaran Subramanian
Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India
Biotemas
Abnormal regeneration
Pentamerism
Starfish
title Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India
title_full Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India
title_fullStr Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India
title_full_unstemmed Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India
title_short Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888) (Echinodermata: Astroidea) along Southeast coast of India
title_sort occurrence of abnormal starfish astropecten indicus doderlein 1888 echinodermata astroidea along southeast coast of india
topic Abnormal regeneration
Pentamerism
Starfish
url https://periodicos.ufsc.br/index.php/biotemas/article/view/23480
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AT bragadeeswaransubramanian occurrenceofabnormalstarfishastropectenindicusdoderlein1888echinodermataastroideaalongsoutheastcoastofindia