MARC details
| 000 -LEADER |
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| fixed length control field |
03068nam a2200289 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20240321090623.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
160620s19uu xx 00 eng d |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CvSU Main Campus Library |
| 041 0# - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
363.739 |
| Item number |
B12 2000 |
| 100 #0 - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Bacaltos, Della Grace |
| Relator term |
author |
| 9 (RLIN) |
20315 |
| 245 10 - TITLE STATEMENT |
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| Title |
Nutrient behavior, primary production,a nd infauna in a river system with inputs from fishpond effluents / |
| Statement of responsibility, etc. |
by Della Grace Bacaltos. |
| 260 0# - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Diliman, Quezon City, |
| Date of publication, distribution, etc. |
2000. |
| Name of publisher, distributor, etc. |
Cavite State University- Main Campus |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xiii, 151 p. : |
| Other physical details |
illustrations ; |
| Dimensions |
28 cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| Carrier type term |
volume |
| 500 ## - GENERAL NOTE |
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| General note |
Thesis (Phd--Marine Science) University of the Philippines |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
This dissertation has assessed the environmental conditions in Sta. Rita River, a river estuary used as a discharge and irrigation area for approximately 316 has of fishponds. The study has estimated nutrient concentrations and fluxes both in the water column and in the sediments, related nutrient levels to seasonal variation (wet and dry), measured primary productivity and assessed the composition and spatial distribution of infauna. These objectives have been attained to elucidate scientific knowledge on nutrient behavior and primary production in a river system affected by fishpond effluents, which may be used to provide insights for management.<br/><br/>On the average, nitrate and ammonia concentrations increased to 3.1 wM and 14 uM during the wet season (September 1997) from 0.4 #M and 7.4 uM during the dry season (February 1997), while phosphate decreased from 5.4 uM to 1.3 uM. The increase in nitrate concentration indicates freshwater input while the decrease in phosphate values imply less of freshwater influence but more from ponds and domestic wastes. Nutrient trends and fluxes indicate that tidal oscillation and advection are important processes in the river. Porewater concentrations of ammonia reached an average level of 3,018 wM in<br/><br/>September 1997 from a level of 2,000 wM in June 1993. Computations done using benthic flux estimate and nutrient concentration in the water column showed that it may take a minimum of 15 days for phosphate, 13 days for nitrite, and 0.3 day for ammonia to replace the standing stock of these nutrients in the water column using the highest benthic flux estimates. This indicates that nutrients regenerated in the sediments could be important in the inventory of nutrients in the water column. The higher average gross<br/><br/> |
| 541 ## - IMMEDIATE SOURCE OF ACQUISITION NOTE |
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| Method of acquisition |
Submitted copy to the University Library. |
| Date of acquisition |
05/27/2016 |
| Accession number |
T-5948 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Nutrient |
| General subdivision |
Pollution of water |
| -- |
Philippines |
| -- |
Anda (Pangasinan) |
| 9 (RLIN) |
20316 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Sewage disposal |
| General subdivision |
Environmental aspects |
| -- |
Philippines |
| 9 (RLIN) |
10268 |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) |
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| 9 (RLIN) |
1418 |
| Course or Program |
Doctor of Philosophy |
| Major |
Marine Science |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| Link text |
Click here to view thesis abstract and table of contents |
| Electronic File |
<a href="http://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=a63049e91354129e4499339170f05382">http://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=a63049e91354129e4499339170f05382</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Theses / Manuscripts |
