Parasitism of fishes in selected estuaries of Cavite /
Llemit, Arnieza B.
Parasitism of fishes in selected estuaries of Cavite / by Arnieza B. Llemit. - Indang, Cavite : Cavite State University- Main Campus, 2015. - xi, 52 pages : illustrations ; 28 cm.
Thesis (Bachelor of Science in Biology) Cavite State University
Includes bibliographical references.
College of Arts and Science (CAS) College of Arts and Science (CAS)
ARNIEZA B. LLEMIT, Parasitism of Fishes in Selected Areas of Cavite. Undergraduate Thesis. Bachelor of Science in Biology major in General Biology. Cavite State University. April 2015. Adviser. Prof. Michele T. Bono.
Parasitic infections on fishes are considered to be one of the current concerns in the aquaculture industry that causes heavy losses. Hence, this study was done to determine parasitism of fishes in selected estuaries of Cavite. Specifically, the study aimed to describe the physiographic characteristics of the estuaries of Naic, Kawit, & Bacoor, Cavite; identify the estuarine fishes caught in the selected areas of Cavite based on its morphological characteristics; determine the presence of parasites in estuarine fishes; identify the parasites of fishes in the selected estuaries of Cavite; determine the physico- chemical properties of the water where the estuarine fishes are caught; determine the relationship between the physico-chemical properties of water and the occurrence of parasites in estuarine fishes and determine the relationship of weight and length of the fishes with the occurrence of parasites.
The physiographic characteristics of the three selected estuaries revealed that Naic estuary was surrounded with mangrove and coconut trees and nearby houses. Kawit was surrounded with mangrove trees along the shoreline but far from houses. However, Bacoor estuary was naturally wide and far from houses.
A total of 180 estuarine fish samples were examined which included six species, Oreochromis niloticus (Tilapia), Mugil cephalus (Asubi), Epinephelus coioides (Lapu- lapu), Arius manillensis (Kanduli), Scatophagus argus (Kitang), and Terapon theraps (Babansi). The external and internal parts of the fish samples were examined thoroughly for the presence of parasites. The gill tissues and intestines of fish samples were excised, and underwent histological examination.
Based on the three selected sampling sites, Naic had the highest rate of infection with 33.33 percent, followed by Bacoor with 28.33 percent and Kawit with 21.67 percent.
Histological examination of the tissues of gill and intestine showed larvae and adult forms of parasites belonging to Phylum Nematoda under the genus Anisakis. Most parasites were examined in the gills of the fish samples. Results showed that fish parasitism was not affected by the physico-chemical properties of water. However, the weight of fishes in the selected estuaries of Cavite was significantly affected by the presence of parasites.
Fishes
597 / L77 2015
Parasitism of fishes in selected estuaries of Cavite / by Arnieza B. Llemit. - Indang, Cavite : Cavite State University- Main Campus, 2015. - xi, 52 pages : illustrations ; 28 cm.
Thesis (Bachelor of Science in Biology) Cavite State University
Includes bibliographical references.
College of Arts and Science (CAS) College of Arts and Science (CAS)
ARNIEZA B. LLEMIT, Parasitism of Fishes in Selected Areas of Cavite. Undergraduate Thesis. Bachelor of Science in Biology major in General Biology. Cavite State University. April 2015. Adviser. Prof. Michele T. Bono.
Parasitic infections on fishes are considered to be one of the current concerns in the aquaculture industry that causes heavy losses. Hence, this study was done to determine parasitism of fishes in selected estuaries of Cavite. Specifically, the study aimed to describe the physiographic characteristics of the estuaries of Naic, Kawit, & Bacoor, Cavite; identify the estuarine fishes caught in the selected areas of Cavite based on its morphological characteristics; determine the presence of parasites in estuarine fishes; identify the parasites of fishes in the selected estuaries of Cavite; determine the physico- chemical properties of the water where the estuarine fishes are caught; determine the relationship between the physico-chemical properties of water and the occurrence of parasites in estuarine fishes and determine the relationship of weight and length of the fishes with the occurrence of parasites.
The physiographic characteristics of the three selected estuaries revealed that Naic estuary was surrounded with mangrove and coconut trees and nearby houses. Kawit was surrounded with mangrove trees along the shoreline but far from houses. However, Bacoor estuary was naturally wide and far from houses.
A total of 180 estuarine fish samples were examined which included six species, Oreochromis niloticus (Tilapia), Mugil cephalus (Asubi), Epinephelus coioides (Lapu- lapu), Arius manillensis (Kanduli), Scatophagus argus (Kitang), and Terapon theraps (Babansi). The external and internal parts of the fish samples were examined thoroughly for the presence of parasites. The gill tissues and intestines of fish samples were excised, and underwent histological examination.
Based on the three selected sampling sites, Naic had the highest rate of infection with 33.33 percent, followed by Bacoor with 28.33 percent and Kawit with 21.67 percent.
Histological examination of the tissues of gill and intestine showed larvae and adult forms of parasites belonging to Phylum Nematoda under the genus Anisakis. Most parasites were examined in the gills of the fish samples. Results showed that fish parasitism was not affected by the physico-chemical properties of water. However, the weight of fishes in the selected estuaries of Cavite was significantly affected by the presence of parasites.
Fishes
597 / L77 2015