MARC details
| 000 -LEADER |
|---|
| fixed length control field |
04268nam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20220125100208.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
071203s19uu xx 00 eng d |
| 040 ## - CATALOGING SOURCE |
|---|
| Transcribing agency |
CvSU Main Campus Library |
| 041 0# - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
|---|
| Classification number |
639.31 |
| Item number |
R33 2007 |
| 100 #0 - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Reyes, Dennis R. |
| 9 (RLIN) |
13722 |
| Relator term |
author |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Lead contamination in Nile Tilapia collected from Naic and Kawit, Cavite / |
| Statement of responsibility, etc. |
by Dennis R. Reyes and Maureen L. Encallado. |
| 260 0# - PUBLICATION, DISTRIBUTION, ETC. |
|---|
| Place of publication, distribution, etc. |
Indang, Cavite, |
| Date of publication, distribution, etc. |
2007. |
| Name of publisher, distributor, etc. |
Cavite State University- Main Campus, |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
xiv, 64 pages : |
| Other physical details |
illustrations ; |
| Dimensions |
cm. |
| 336 ## - CONTENT TYPE |
|---|
| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
|---|
| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
|---|
| Source |
rdacarrier |
| Carrier type term |
volume |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Thesis (BS Biology) Cavite State University. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc. note |
Includes bibliographical references. |
| 508 ## - CREATION/PRODUCTION CREDITS NOTE |
|---|
| College and Department |
College of Arts and Science (CAS) |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
DENNIS R.REYES, and MAUREEN L. ENCALLADO, "Lead Contamination in Pondwater, Liver and Gonads of Nile Tilapia (Oreochromis niloticus) Collected from Naic and Kawit, Cavite". Undergraduate Thesis Bachelor of Science in Biology. Cavite State University April 2007. Adviser. Mrs. Rosemarie R. Calma. <br/>This study was done to detect the presence of lead within the coastal municipalities of Naic, and Kawit Cavite. Histopathological examination of the liver and gonads of O. niloticus was also done to describe the effects of lead on these tissues. A relationship was drawn between the body parameters and the gonad somatic index or hepatosomatic index, and between physicochemical parameters and lead level to verify the damage brought about by the presence of lead as contaminants in the selected sampling sites. A completely randomized design (CRD) scheme with lead level and frequency of sampling in the two lowland towns of Cavite, namely Naic and Kawit, were utilized and tilapia samples were randomly collected from these experimental areas three times at four-week interval. The pH and DO levels were not significantly different between the two sites except hardness (CaCO3). The bioavailability of lead is strongly enhanced at decreasing pH these result was observed to be within the recommended pH range of 6.8 to 8.0 suitable for fish growth and may not increase the toxicity of lead for tilapia. A lesser DO level of 5mg/L ppm may not be considered lethal, its growth and reproduction might be adversely affected. Water hardness (CaCO3) was higher in Kawit than in Naic, indicating that there were more suspended solids as pollutants in Kawit lake making it turbid and almost basic. Overall results suggested that tilapia would grow better in Kawit than in Naic due to higher pH and availability of nutrients. Results showed that the lead level concentrations in Naic and Kawit were 0.19 ± 0.08 and 0.09 ± 0.17 respectively and was not significant at P<0.05 level. Body weight of fish was influenced by the change in body width but not the length, similarly, body weight or width were not indicators of liver weight or gonad weight in tilapia and other body parameters in general. The organo somatic indices were analyzed and results showed that the HSI was highly correlated with mean liver weights of the fish collected from both sites; it was not influenced by a change in its body weight. This indicates that liver weight was a good bio indicator. GSI was useful in determining the reproductive maturity of the fish and not its body weight. Histopathological evidences revealed that the tilapia samples collected had tumor-like growth in between hepatocytes. Pyknosis and necrosis were also observed in the liver tissues, while the testes showed distorted spermatogonia. The gonadal histopathological examinations remain speculative since distortion may also be attributed to spawning.<br/> |
| 541 ## - IMMEDIATE SOURCE OF ACQUISITION NOTE |
|---|
| Method of acquisition |
Submitted to the University Library |
| Date of acquisition |
05/08/2007 |
| Accession number |
T-3540 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Fishes |
| General subdivision |
Contamination. |
| 9 (RLIN) |
2990 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Tilapia |
| General subdivision |
Contamination. |
| 9 (RLIN) |
9187 |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) |
|---|
| 9 (RLIN) |
1672 |
| Course or Program |
Bachelor of Science in Biology |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Encallado, Maureen L. |
| 9 (RLIN) |
13723 |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Calma, Rosemarie R. |
| 9 (RLIN) |
17480 |
| Relator term |
adviser |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
|---|
| Electronic File |
<a href="http://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=0d971a4884c0b2c373960375852195d4">http://library.cvsu.edu.ph/cgi-bin/koha/opac-retrieve-file.pl?id=0d971a4884c0b2c373960375852195d4</a> |
| Link text |
Click here to view thesis abstract and table of contents |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Theses / Manuscripts |
