Research List

No.	Researcher	Title	Abstract	Year
1721	Khin Khin Gyi	ENVIRONMENTAL CONTROL OF SEASONAL VARIATIONS IN THE PHYTOPLANKTON COMMUNITY STRUCTURE ALONG THE COAST OF TANINTHARYI, SOUTHERN MYANMAR	The seasonal fluctuations in phytoplankton assemblages and the controlling environmental factors were investigated for 24 months along the coast of Tanintharyi from June 2013 to June 2015. A wide fluctuation in cell abundance 72,450-714,396 cells l-1 at Kawthaung, 47,416-947,501 cells l-1 at Myeik, 8,930-28,439 cells l-1 at Kampani, 8,976-17,888 cells l-1 at Ye and 5,162-16,986 cells l-1 at Setse were noted during the study period. Amongst, Kawthaung and Myeik stations had the highest phytoplankton abundance whereas Ye and Setse stations showed remarkably lower abundance. A clear seasonal trend was found at all five stations with a sharp peak in the pre-monsoon months and a gradual decrease in the monsoon and post-monsoon periods. Phosphate concentration was relatively high at Myeik and Kawthaung stations, and also the increase of water temperature and salinity in the pre-monsoon months may probably stimulate a high abundance of phytoplankton. On the other hand, a decrease of phytoplankton abundance was found in the monsoon season which was characterized by low water temperature, low salinity, and low level of nutrients.	2021
1722	Sein Moh Moh Khaing	THE CULTURE STUDIES ON THE FORMATION AND GROWTH OF THE SECONDARY BRANCHES AND REPRODUCTIVE STRUCTURES OF HYPNEA SPINELLA (C. AGARDH) K�TZING (GIGARTINALES, RHODOPHYTA) FROM SETSE COASTAL AREA	The plants of Hypnea spinella (C. Agardh) K�tzing collected from the tidal pools in the upper intertidal zone of Setse coastal area (Lat. 15� 52' N, Long. 97� 35' E) had been culture under the laboratory conditions. It was carried out to investigate the formation and growth of H. spinella (C. Agardh) K�tzing based on the early stages of secondary branches and reproductive structures in culture. In this study, the maximum growth was found in the salinity 25�. After five days, a new filamentous sprout grew and seven days later, a single apical cell which develops at terminate of the branches and branchlets. After ten days, laterals and new branch filaments arised and after fifteen days initiating, short branchlets which gradually grow up on the branches like spiny outgrowth. Moreover, tetrasporangial form observed at the basal, middle and upper portion of the branchlets encircling the entire surface were described.	2021
1723	Myo Min Tun	STOMACH CONTENTS OF THE SPADENOSE SHARK SCOLIODON LATICAUDUS MULLER & HENLE 1838 IN MON COASTAL WATER	Stomach contents of the spadenose shark in Mon coastal water were studied by using the samples collected from the fish landing sites during October 2017 to September 2018. The present study revealed that the stomach contents of Scoliodon laticaudus were categorized by cephalopods (26.4%), fish (26.3%), shrimps (25.7%) and other crustaceans (21.6%) in the study period. According to the number and frequency occurrence, S. laticaudus is a cephalopods feeder and their feeding rate is not different in stations of the present study. The least food composition is other crustaceans for S. laticaudus. Seven species of fishes such as Rastrelliger brachysoma, Nemipterus japonicus, Harpodon nehereus, Johnius coitor, Polynemus paradiseus, Coilia dussumieri and Trichiurus lepturus, two species of cephalopods namely Sepia sp. and Loligo sp., three species of shrimps including Penaeus indicus, Acetes indicus and Metapenaeus brevicornsis in the stomach of this species were examined. In the stomach of S. laticaudus, 14 phytoplankton species and 16 zooplankton species were examined.	2021
1724	Soe Thaw Thaw Tun	SPECIES COMPOSITION AND ABUNDANCE OF TENUALOSA SPECIES IN NGA YOKE KAUNG COASTAL AREA	This study was conducted on the species composition and abundance of Tenualosa spp. in Nga Yoke Kaung coastal area from June 2018 to February 2019. Two species of Tenualosa, namely Tenualosa ilisha and Tenualosa toli were observed in study sites. The species composition of Tenualosa spp. and other fishes caught by drift gill net using mesh size of 2.5 � 3.5 inches are described monthly in this study. The catch composition showed that the high species composition of Tenualosa ilisha was found in Sin Ma during June to September and in Nga Yoke Kaung during June to August. In Tenualosa toli, the highest composition was found in Sin Ma in October and also in Nga Yoke Kaung in December. In order to estimate the abundance of Tenualosa spp. in study areas, catch per unit effort of each species were calculated from the catch weight (kg) during study periods. The best production of T. ilisha was June to September in both study sites and the maximum CPUE value was observed in August in Nga Yoke Kaung. T. toli was more abundant during September to February in study areas. The fishing areas and fishing gears used for Hilsa fishery were recorded in this study.	2021
1725	Lwin Mar Aung	SOME BOLOGICAL ASPECTS OF OTOLITHOIDES PAMA (HAM-BUCH, 1822) FROM PHYAN YAY KYAW VILLAGE, NGA PU TAW TOWNSHIP, AYEYAWADY RGION	Study on some aspects of biology of Otolithoides pama, (Family: Sciaenidae) was studied in the Phyan Yay Kyaw village, Nga Wun River, Nga Pu Taw Township, Ayeyawady Region between June 2015 to May 2016. Fifty percent of male matures at the average length of 21.5cm and that of female at 17.5 cm TL. The overall sex ratio was 1male:1.2females (X2=1.8). The highest gonadosomatic index value was observed in June and July for both sexes. Spawning season was from December to July and with the peak spawning months was June and July. Length-weight relationship of O.pama was negatively allometric growth (b<3). There was significanty difference between the slopes at 1% level; a combined relationship of male and females was obtained.	2021
1726	Wint Thuzar Nwe	SPECIES COMPOSITION AND ABUNDANCE OF HYTOPLANKTON IN DAWEI COASTAL WATERS	Species composition and abundance of phytoplankton were studied bimonthly at Dawei coastal waters in Myanmar during the period from June 2019 to January 2020. Samples were collected at the four stations, namely, Maungmagan (station 1), Kampani (station 2), Nyawpyin (station 3), and Kyaukmatak (station 4). A total of 148 species in which 6 classes are of 36 orders, 48 families, and 65 genera was recorded in the present study. Centric diatoms contributed a maximum percentage composition (80% in total) followed by the pennate diatoms (18%), whereas dinoflagellates comprised a minimum percentage composition, with an average of 2 %. Silicoflagellates were rarely observed. Among the four stations, the highest cell abundance (3139 cells/mL) was observed at station 1, with a 43% in total, which was followed by station 3 (1667 cells/mL) and station 2 (1573 cells/mL), with a percentage of 23% and 22% in total, respectively. The least cell abundance (889 cells/mL) was found in station 4 with a percentage of 12% in total. Phytoplankton abundance was high in the post-monsoon period but the low cell abundance in the monsoon season. Skeletonema costatum, Leptocylindrus danicus, Proboscia alata, Bacteriastrum delicatulum, Chaetoceros compressus, Thalassionema frauenfeldii, Chaetoceros lorenzianus, Thalassionema nitzschioides were dominant species along Dawei coastal waters.	2021
1727	Wint Yee Paing	STUDY ON THE MORPHOLOGY, DAILY GROWTH FORM AND LIFE CYCLE OF ARTEMIA SP (BRINE SHRIMP) USING DIFFERENT KINDS OF FEEDING	The morphology, daily growth form and life cycle of Artemia were observed under different kinds of feeding such as Spirulina dry powder, yeast, and rice bran and formulated diet (shrimp meal) in the laboratory culture conditions. The optimum survival rate for Artemia was observed in the feeding of rice bran. And as well the second were observed in the feeding of Spirulina dry powder, yeast and formulated diet (shrimp meal) receptively but their high fraction of water soluble components which cannot be ingested by the brine shrimp that interferes with the water quality of the culture medium.	2021
1728	Thu Thu Min	DISTRIBUTION, ABUNDANCE AND COMPOSITION OF SOME CARANGID FISH IN MON COASTAL WATERS	The composition of carangid fish species in the catches from bag net and drift gill net fisheries of three sampling sites, Kyaikkhami, Asin and Zeephyuthaung in Mon coastal waters were recorded during June 2013 and May 2015. A total of seventeen carangid species belonging to ten genera contributed to the catches of Mon coastal waters. Among the seventeen species of Mon coastal waters, the catches of Asin sampling site composed of fifteen species followed by 14 species (Zeephyuthaung) and 9 species (Kyaikkhami). The catch weight and catch effort was found to be highest in Asin with an average of 24829kg and 3.7kg/boat/day followed by Zeephyuthaung (21563kg, 3.1kg/boat/day) and Kyaikkhami (3724kg, 2.6kg/boat/day). The catches were high in November to January at Kyaikkhami, October to December at Asin and September to December at Zeephyuthaung. The highest average percentage of carangid species composition in total catch was observed at Asin (23.825%), followed by Zeephyuthaung (19.82%) and Kyaikkhami (8.8%).	2021
1729	Myat Thu	REPRODUCTIVE BIOLOGY OF BOMBAY DUCK, (HARPADON NEHEREUS) IN MON COASTAL WATER	The reproductive biology of Harpadon nehereus from Mon coastal water was investigated during May (2019) to April (2020). H. nehereus have a prolonged spawning season with two peaks during May to June and December to January. GSI showed peak values in May (4.16), June (5.16), December (4.83) and January (5.69) in female. The Kn values ranged from 0.989 (August) to 1.004 (October) in male and 0.998 (July) to 1.027 (December) in female. The overall sex ratio (1:0.66) showed significant difference at 5% (p<0.05) level and males outnumbered females. The length at first maturity of females was estimated as an average of 230 mm. The fecundity varied between 23,625 and 117,498 with an average fecundity of 55054 ova. The fecundity indicated higher relationship with ovary weight (r = 0.934) rather than total length (r = 0.724) and body weight (r = 0.713). The mature ovaries (from stage IV to VI) of H. nehereus contained mature ova which are distinctly separated from the immature stock.	2021
1730	Sit Thu Aung	LABORATORY TO OUTDOOR CULTIVATION OF ARTHROSPIRA PLATENSIS IN NATURAL SEAWATER	In the experiment of laboratory, the growth rates of Arthrospira platensis were tested at five different media (modified F-2 medium with CaCO3, modified F-2 medium with NaHCO3, modified Zarrouk�s medium with CaCO3, modified Zarrouk�s medium with NaHCO3, and urea and T-super with NaHCO3) at pH 8.5 to 10.5 and salinity 30� and 35�. Then they were also tested with urea and T-super with NaHCO3 medium at pH 10 and salinity 30� for outdoor culture. The optimum growth of A. platensis (OD 0.56) was observed in modified Zarrouk�s medium with NaHCO3 at pH 10.5 in both salinities and at pH 10 in salinity 30� and also observed in urea and T-super with sodium bicarbonate at pH 10.5 of salinity 30� in the laboratory cultivation. For outdoor culture the optimum growth was OD 0.47. The minimum growth rate was occurred in modified F-2 medium with CaCO3 at pH 8.5 of salinity 30�.	2021

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