Preliminary study in the embryology and larval rearing of Biyang Puti (Glossogobius giuris Hamilton) under semi- natural conditions
Date
10-2013
Degree
Bachelor of Science in Biology
Major Course
Major in Zoology
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Pablo P. Ocampo
Committee Member
Ma. Dalisay G. Maligalig Nina M. Cadiz
Abstract
This study was conducted to characterize and record embryonic development of Glossogobius giuris (Hamilton), and to determine the effect of stocking density on the survival of larvae in a semi-natural condition. Development of G. giuris from late blastula stage until hatching was documented. Growth of the embryo larvae was monitored in terms of total length and development of anatomical structures. The effect of stocking density on survival and growth of G. giuris was determined by varying number of clutches stocked in a 4 x 10 x 0.5 m concrete tank. Hatching took place at 72 hours after fertilization but the larvae may hatch at 48 hours when disturbed. At hatching the average total length of the larvae was 2.167 mm. Group A contained one clutch while B and C contained two and three clutches respectively with estimated density of 125-175 ind/m3, 250-350 ind/m3, and 375-525ind/m3 respectively. Group B had the highest survival (48.78%) and greatest final total length (21.43±3.85 mm) among the experimental setups and the difference among the test groups was found to be significant (F value = 8.345 , P<0.05). The optimal stocking rate was found out to be 250-350 ind/m3 or two clutches in a 4x10x0.5 m concrete tank.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 993.5 2013 B4 /G66
Recommended Citation
Gonzales, Jon Carlo B., "Preliminary study in the embryology and larval rearing of Biyang Puti (Glossogobius giuris Hamilton) under semi- natural conditions" (2013). Undergraduate Theses. 1397.
https://www.ukdr.uplb.edu.ph/etd-undergrad/1397
Document Type
Thesis