Normal view MARC view ISBD view

Faunal and physical characterization of selected rivers in Alfonso, Cavite / Charito N. Dimaranan.

By:

Dimaranan, Charito N [author]

Contributor(s):

Rint, Josefina R [adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : 2000. Cavite State University- Main Campus,Description: xii, 76 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

574 D59 2000

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

College of Arts and Science (CAS)

Abstract: DIMARANAN, CHARITO NAZARENO," FAUNAL AND PHYSICAL CHARACTERIZATION OF SELECTED RIVERS IN ALFONSO, CAVITE. March 2000. Cavite State University, Indang Cavite ". Thesis manuscript, Bachelor of -Science in Biology, major in Gen. Biology, Thesis Adviser: Dr. Josefina R. Rint. The present status and population level of species within the river ecosystem were documented and the effect of physical condition of the rivers to the faunal population and species diversity were studied and assessed. Samples from each station were collected, identified and preserved. The study of animal diversity was conducted in the rivers of Alfonso, Cavite. The study area was divided into eastern and western rivers. The eastern side composed of Ermeecoy, Tapatan, Alibandog, Humayaw, Bano,Tibagan and Layon. On the western side were Sulsugin Malalim, Sabang, Hipuan, Ilat, Bilog Mabato, Borohan and Hagdang Bato. A total of 17 species from 15 families were collected and identified. The animal group includes; arthropods, (20.52%), mollusks (21.56%) and chordates (57.92%). The mollusk animal includes native snails, golden snails and fresh water clams. The identified arthropods were spiders, insects and crustaceans. The chordates were frogs and fishes. A pH value of six had 59.31% number of animal species, pH value of five had 24.01 % number animal species and pH seven has 16.68% animal species. The type of riverbeds, sand and mud influenced the diversity of animals. Majority of the species were observed live in substrate of fine area. The velocity of water current affected the aquatic animal distribution of the species. A water velocity of 21-40 cm/sec favored 14 out of 17 species. The respondents claimed that water strider, native snails and guppies were the most abundant obtained in Alfonso River. Six species such as long jawed spider, golden snails, fresh water clams, tilapia and catfish considered abundant. Other species were few. They were fresh water, shrimps, and crabs. Three benefits derived from the river, namely; for cleaning, washing clothes, source of viand and for recreation. Rampant fishing and competition among species were the most common reason in the decreasing level in the population of aquatic animals.

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 5 )

Holdings
Item type	Current library	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	574 D59 2000 (Browse shelf(Opens below))		Link to resource	Room use only	T-2100		00002696

Thesis (BS Biology - - General Biology) Cavite State University.

Includes bibliographical references.

College of Arts and Science (CAS)

DIMARANAN, CHARITO NAZARENO," FAUNAL AND PHYSICAL CHARACTERIZATION OF SELECTED RIVERS IN ALFONSO, CAVITE. March 2000. Cavite State University, Indang Cavite ". Thesis manuscript, Bachelor of -Science in Biology, major in Gen. Biology, Thesis Adviser: Dr. Josefina R. Rint.
The present status and population level of species within the river ecosystem were documented and the effect of physical condition of the rivers to the faunal population and species diversity were studied and assessed. Samples from each station were collected, identified and preserved.
The study of animal diversity was conducted in the rivers of Alfonso, Cavite. The study area was divided into eastern and western rivers. The eastern side composed of Ermeecoy, Tapatan, Alibandog, Humayaw, Bano,Tibagan and Layon. On the western side were Sulsugin Malalim, Sabang, Hipuan, Ilat, Bilog Mabato, Borohan and Hagdang Bato. A total of 17 species from 15 families were collected and identified. The animal group includes; arthropods, (20.52%), mollusks (21.56%) and chordates (57.92%).
The mollusk animal includes native snails, golden snails and fresh water clams. The identified arthropods were spiders, insects and crustaceans. The chordates were frogs and fishes.
A pH value of six had 59.31% number of animal species, pH value of five had 24.01 % number animal species and pH seven has 16.68% animal species. The type of riverbeds, sand and mud influenced the diversity of animals.
Majority of the species were observed live in substrate of fine area. The velocity of water current affected the aquatic animal distribution of the species. A water velocity of 21-40 cm/sec favored 14 out of 17 species.
The respondents claimed that water strider, native snails and guppies were the most abundant obtained in Alfonso River. Six species such as long jawed spider, golden snails, fresh water clams, tilapia and catfish considered abundant. Other species were few. They were fresh water, shrimps, and crabs. Three benefits derived from the river, namely; for cleaning, washing clothes, source of viand and for recreation.
Rampant fishing and competition among species were the most common reason in the decreasing level in the population of aquatic animals.

Submitted to the University Library 04/28/2000 T-2100