scholarly journals THE OCCURRENCE OF MARINE ORGANISMS - IN BALLAST WATER OF SHIP VISITING COLOMBO HARBOUR

Author(s):  
S.A.M.A.I.K. Senanayake ◽  
R.R.M.P.K. Ranathunga ◽  
A.J.M. Gunasekara ◽  
N. Priyadarshana
1991 ◽  
Vol 1991 (59) ◽  
pp. 14-16 ◽  
Author(s):  
Madeleine M. Jones

PLoS ONE ◽  
2017 ◽  
Vol 12 (3) ◽  
pp. e0172468 ◽  
Author(s):  
Katharine J. Carney ◽  
Mark S. Minton ◽  
Kimberly K. Holzer ◽  
A. Whitman Miller ◽  
Linda D. McCann ◽  
...  

2006 ◽  
Vol 149 (1) ◽  
pp. 7-16 ◽  
Author(s):  
M. Faimali ◽  
F. Garaventa ◽  
E. Chelossi ◽  
V. Piazza ◽  
O.D. Saracino ◽  
...  

2018 ◽  
Vol 35 (1-2) ◽  
pp. 31-36
Author(s):  
M.T. Babu ◽  
K Sudheesh ◽  
P Vethamony ◽  
S Anuvindha

Aquatic organisms and pathogens may become major threats to the coastal and marine environment when introduced into a region beyond their natural distributions through ballast water (BW). Coastal currents induced by tides and winds, especially ebb currents, may facilitate the spread of these marine organisms along nearshore and inshore areas. Numerical modelling of hydrodynamics is an effective tool to track the dispersion of these organisms in the receiving water body through BW release. Particle transport models can be used to track the advection and dispersion of these organisms. Alternatively, the difference in salinity of the BW and coastal waters can be used as a tracer to estimate the dispersion pattern. Tides and winds present in the region at the time of BW release are responsible for the dispersal of the particles present in BW discharge. Based on advection and dispersion processes, the transport of the marine organisms present in the BW can be studied using numerical models. Numerical modelling studies were carried out using the 2-D hydrodynamic model MIKE21 HD, to understand the pattern of BW dispersion at select bioregions along the east and west coasts of India. Mangalore Port located along the west coast in Bioregion-I (CIO-I) and Chennai Port on the east coast in Bioregion-II (CIO-II) were selected for the modelling study. Results obtained from ballast water dispersion modelling studies will be useful for developing and assisting port-based ballast water management programmes for CIO-I and CIO-II regions. The currents are predominantly tide driven near the ports situated along the west coast and the circulation exhibited reversals associated with the tidal currents. However, along the east coast of India, the particles largely followed coastal currents - advected either southward or northward under the influence of prevailing coastal currents in the offshore region and tidal reversals showed had less impact. This information proved useful for determining suitable locations for BW discharge and monitoring points for field sampling in connection with BW release.


Author(s):  
Moteah Sheikh Aideed ◽  
Najla O. Al Habshi ◽  
Naeem A. K. Alamoudi

This was the first study in Yemen, and Gulf of Aden aims to investigate the marine organisms in ballast water and sediments, and gives baseline information defines the zooplankton, phytoplankton and invertebrates, associated fuel tankers. Samples from Ballast water were taken from three ships that arrived at Mukalla Port, the Hadhramout coast from ports of Hamriyah port, U.A.E; ports of Taheri, Iran; and Bosaso Somalia (MT: Gulf Petroleum III, MT: Prime Royal, and M T: Breu) respectively. The marine organisms in samples were presented by three taxonomic groups, phytoplankton, zooplankton and benthos. Fifty-eight taxa were identified within this study; which consisted of 17 phytoplankton, 18 zooplanktons and 23 Benthos. The highest density of phytoplankton was 21 Ind/L, with the occurrence of 17 species found in ballast water, while 22 Ind/50cc of 2 species in sediment samples of the tanker Beru, and fewer densities were in Gulf Petroleum and Prim Royal. The most common phytoplankton observed were Coscinodiscus granii, Coscinodiscus jonesianus and Thalassiosira eccentric. The low Zooplankton density was 13 Ind/L with an occurrence of 18 species found in Prim Royal tanker. Copepods were the most dominant zooplankton among the three tankers. Paracalanus parvus had the highest value of dominance followed by Calanopia parathompsoni, Acrocalanus gracilis and Paracalanus denudatus had the lowest occurrence over three tankers. Seven taxa of Dinoflagellates were identified; two of them Ceratium fusus and polykrikos sp. are known to be harmful species.


Sign in / Sign up

Export Citation Format

Share Document