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Barnacle larval transport in the Mandovi–Zuari estuarine system, central west coast of India

DRS at CSIR-National Institute of Oceanography

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Title Barnacle larval transport in the Mandovi–Zuari estuarine system, central west coast of India
 
Creator George, G.
Desai, D.V.
Gaonkar, C.A.
Aboobacker, V.M.
Vethamony, P.
Anil, A.C.
 
Subject larvae
local movements
mathematical models
hydrodynamics
 
Description A two-dimensional hydrodynamic and particle tracking model was used to estimate the dispersion and retention of barnacle larvae from their possible spawning sites in a tropical monsoon-influenced estuarine system (central west coast of India). Validation of the hydrodynamic simulations yielded a good match with field measurements. The pattern of larval dispersal in the region varied with the winds and currents. The seasonal changes in abundance could be attributed to physical forcing and weather conditions. The extent of barnacle larval dispersal from spawning sites varied from 10 to 78 km for different sites and seasons. During a 24-h cycle, the larval abundance showed one to two peaks in the estuarine area. The increased larval abundance is favored by the flood currents, pushing the larvae into the estuary. Physical forcing in the region helps in transport of the larvae from their spawning sites hugging to the coast and contributing to the population within the estuary. Field observations and numerical experiments suggest the occurrence of higher larval abundance in the estuary during post-monsoon. The dispersal pattern indicated that the barnacle population present in the estuary is well mixed, and with a seasonally changing pattern
 
Date 2013-09-06T07:40:40Z
2013-09-06T07:40:40Z
2013
 
Type Journal Article
 
Identifier Journal of Oceanography, vol.69(4); 2013; 451-466
http://drs.nio.org/drs/handle/2264/4355
 
Language en
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2013] Springer.
 
Publisher Springer