MARC details
| 000 -LEADER |
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| fixed length control field |
03295nam a22002897a 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 |
20241121103554.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
241121b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
TUPM |
| Language of cataloging |
English |
| Transcribing agency |
TUPM |
| Modifying agency |
TUPM |
| Description conventions |
rda |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER |
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| Classification number |
BTH GF 41 |
| Item number |
D35 2024 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Dalawangbayan, Reizell A. |
| Relator term |
author |
| 245 ## - TITLE STATEMENT |
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| Title |
Anthropogenic activities, water quality, and Ichthyofaunal diversity of Navotas riverine ecosystem, Philippines/ |
| Statement of responsibility, etc. |
Reizell A. Dalawangbayan, Jericho P. Encarnacion, Sheena Mae M. Rivera, and Princess Kaye G. Tamula .-- |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Manila: |
| Name of publisher, distributor, etc. |
Technological University of the Philippines, |
| Date of publication, distribution, etc. |
2024. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xii, 214pages: |
| Dimensions |
29cm. |
| Accompanying material |
+1 CD-ROM (4 3/4in.) |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| 500 ## - GENERAL NOTE |
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| General note |
Thesis (undergraduate) |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
College of Science .-- |
| Degree type |
Bachelor of Science in Environmental Science .-- |
| Name of granting institution |
Technological University of the Philippines, |
| Year degree granted |
2024. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc. note |
Includes bibliography. |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
This study investigates the anthropogenic activities, water quality, and ichthyofaunal<br/>diversity of the Navotas Riverine Ecosystem. It examines the anthropogenic influences,<br/>analyzes the physicochemical and microbiological properties of water, identifies fish<br/>species, evaluates the water quality index, and determines ichthyofaunal diversity using<br/>various indices. Water samples and fish collections were conducted from January to April<br/>2024 at three sites. Key findings indicate that water quality parameters such as temperature<br/>(23.20-37.5°C), dissolved oxygen (6.22-7.84 mg/L), phosphate concentration (0.55-3.72<br/>mg/L), and fecal coliform (350-160,000 MPN/100 mL) failed to meet DENR standards for<br/>Class C water. The TDS (1153.33-10700 ppm) and conductivity (17653.33-21333.33<br/>μS/cm) were also elevated, indicating significant pollution. The study identified low<br/>ichthyofaunal diversity, with six native and one invasive fish species. A total of 269 fish<br/>were collected: 161 from Site 1, 46 from Site 2, and 62 from Site 3. The most abundant<br/>species was Scatophagus argus (19% occurrence), while the invasive Sarotherodon<br/>melanotheron ranked third (17% occurrence). Notably, pH (r = 0.753) correlated highly<br/>with nitrate concentration. S. melanotheron significantly correlated with pH (r = 0.602, p<br/>= 0.019) and nitrates (r = 0.555, p = 0.031). Lutjanus argentimaculatus also had significant<br/>correlations with pH (r = 0.527, p = 0.039) and nitrates (r = 0.651, p = 0.011). Conversely,<br/>S. argus had a negative moderate correlation with temperature (r = -0.529, p = 0.039) and<br/>conductivity (r = -0.536, p = 0.036). These correlations suggest that the water parameters<br/>significantly influence the diversity and abundance of fish in the river. The study concludes<br/>that the river's water quality is heavily influenced by anthropogenic activities which<br/>negatively affect ichthyofaunal diversity. Recommendations include continuous<br/>monitoring, gut and heavy metal analysis of fish, assessment of avifauna diversity, and<br/>strict implementation of conservation regulations. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Environmental science |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Encarnacion, Jericho P. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Rivera, Sheena Mae M. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Tamula, Princess Kaye G. |
| Relator term |
author |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Bachelor's Thesis COS |
| Suppress in OPAC |
No |