Seagrass Beds of the Negombo Lagoon (Record no. 9506)
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| 000 -LEADER | |
|---|---|
| fixed length control field | nam a22 7a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20181227093638.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 181214b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | NARA |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 17727 |
| Personal name | De Silva, M.W.R.N. |
| 245 ## - TITLE STATEMENT | |
| Title | Seagrass Beds of the Negombo Lagoon |
| 260 ## - PUBLISHER, DISTRIBUTION, ETC. | |
| Date of publication, distribution, etc. | 1987, |
| Place of publication, distribution, etc. | Sri Lanka, |
| Name of publisher, distributor, etc. | NARA, |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 14p. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Seagrass beds are high productive ecosystems which occur in <br/>the sea, in lagoons and in estuaries. They are prominent features <br/>of many sand and reef flats in the coastal waters of Sri Lanka, <br/>Although well represented throughout the island, there is little <br/>information on their distribution and ecology. Salm in 1981 has <br/>indicated the locations of the seagrass beds in the Kokkilai <br/>lagoon, Puttalam and Dutch Bays, Jaffna and Mannar Districts as <br/>well as in the Negombo Lagoon. Some information is also available <br/>on the taxonomy of seagrasses, but there appears to be some <br/>confusion even with respect to the genera that have been recorded <br/>for Sri Lanka. Abeywickrema (pers. comm.) records 12 species <br/>divided among 9 genera for Sri Lanka based on previous records.<br/>}The genera Halodule. Zostera and Thalassiodendron recorded for its Sri Lanka by Samarakoon in 1986 in a draft Technical Report of a <br/>Workshop on Critical Habitats in the Coastal Zone (CCD/USAID/URI) <br/>if they are truely present, have not been included in<br/>Abeywickrema's records.<br/>The present investigation has indicated the presence of <br/>extensive beds of seagrasses in the Negombo Lagoon. In areal <br/>extent the cover by seagrass beds exceed that of the mangroves of <br/>the Negombo Lagoon at least by three times. It is possible that <br/>the highly productive seagrass beds in the Negombo Lagoon play a <br/>major and a more important role in the fisheries productivity <br/>than the mangroves. Further research need to be geared to<br/>determining the the contribution of the seagrass beds to • *<br/>particularly the productive prawn fishery of the Negombo Lagoon.<br/>The following seagrasses were recorded in the lagoon during <br/>the present investigation;<br/>i) Halophila ovalis <br/>ii) Halophila beccarii <br/>iii) Halophila sp. <br/>iv) Ruppia sp.<br/>v) Syringodium isoetifolium <br/>vi) Halodule ?<br/>Further, during the investigation, several activities that <br/>could stress the seagrass beds were observed. Among them were;<br/>(i) The use of drag nets for fishing.<br/>(ii) The disturbance to seagrass beds by the <br/>collection of polychaete worms to be used as a <br/>feed in the shrimp hatcheries that have developed <br/>recently in the Negombo area. |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 17737 |
| Personal name | Ranatunge, R.A.S. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Research Papers |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Inventory number | Total Checkouts | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NARA Main Library | NARA Main Library | Ready Reference | 23.12.2018 | RP0089 | RP0089 | 23.12.2018 | RP0089 | 23.12.2018 | Research Papers |