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Pleustonic colonies of cnidarians (Physalia physalis, Porpita porpita and Velella velella) found along the coastal belt of Sri Lanka

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Title Pleustonic colonies of cnidarians (Physalia physalis, Porpita porpita and Velella velella) found along the coastal belt of Sri Lanka
 
Creator Karunarathne, K D
Croos, M D S T de
 
Subject Jellyfish
Monsoons
Spatio-temporal dynamics
Taxonomy
 
Description 45-55
Three species of the free-floating, colonial hydrozoans namely Physalia physalis L., Porpita porpita L. and Velella velella L., found along the coastal belt of Sri Lanka are reported here with their morphological descriptions and respective abundance. The study was conducted from March 2017 to April 2018, implementing monthly coastal surveys at 26 sampling stations along the coastal belt of Sri Lanka. The abundance of stranded colonies of those species was assessed using line transects and the specimens were identified taxonomically. Of the porpitids found in this study, V. velella was reported for the first time in Sri Lankan waters while P. porpita was re-reported trustworthy as its initial record was just a sighting. The siphonophore P. physalis was also re-reported and it always represented the lowest abundance among the stranded colonies of the three species. The highest abundance of all the species was from May to August on the southwest coast of Sri Lanka, and from November to February on the northeast coast. There was a significant size difference in colonies of each species between the two coasts.
 
Date 2022-06-17T07:04:51Z
2022-06-17T07:04:51Z
2022-01
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/59891
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.51(01) [January 2022]