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Publication Open Access Aquatic ecology and biodiversity around Khao Pra Wiharn National Park, Thailand(2011-12) Suchart Nawagawong; Nukul Sangpun; Mahidol University. Faculty of Environment and Natural Resource StudiesThe area 4.6 km2 in the Pra Wiharn National Park is the area along the border line between Thailand and Cambodia. This area is still maintaining the problem in overlaps claming between this two countries. If the Pra Wiharn Temple, in which is locating in the area 4.6 km2, was nominated as the world heritage site then the area 4.6 km2 will be basically sensitively in the ecology system. The ecology system of Sra Trao pond ,in which only one water source above the Pa Mo I Daeng Cliff and the other running water sources, on the open area near the Temple, as the temporary pools should be studied and collected data for planning as the sustainable ecological area.Publication Open Access การยกระดับคุณภาพตะกอนดินของบึงบอระเพ็ดด้วยปุ๋ยหมักจากวัชพืชน้ําเพื่อการใช้ประโยชน์ทางการเกษตรตามแนวทางโมเดลเศรษฐกิจใหม่ (BCG Model) ของจังหวัดนครสวรรค์(2568) ธนากร จันหมะกสิต; ณพล อนุตตรังกูร; จิระเดช บุญมาก; วชิระ กว้างขวาง; วีระเดช มีอินเกิด; ปัณฑารีย์ แต้ประยูร; Tanagon Junhamakasit; Napon Anuttarunggoon; Jiradaj Boonmak; Wachira Kwangkhwang; Weeradej Meeinkuirt; Puntaree Taeprayoonบึงบอระเพ็ดเป็นแหล่งน้ำจืดใหญ่ที่สุดในประเทศไทยมีปัญหาสำคัญคือการทับถมของวัชพืชน้ำ และตะกอนดิน ทำให้ต้องมีการขุดลอกเป็นประจำเพื่อป้องกันการตื้นเขิน โดยส่วนใหญ่ตะกอนดินถูกนำไปใช้ถมพื้นที่การก่อสร้าง ดังนั้นเพื่อเพิ่มมูลค่าของวัชพืชน้ำและตะกอนดิน ตลอดจนแนวทางการนำไปใช้ด้านการเกษตร งานวิจัยนี้จึงทดลองผสมระหว่างปุ๋ยหมักกับตะกอนดินในอัตราส่วนต่าง ๆ จำนวน 8 สิ่งทดลอง (T1-8) ศึกษาสมบัติทางฟิสิกส์และเคมี พร้อมทั้งทดลองปลูกคะน้าเพื่อเปรียบเทียบการเจริญเติบโต วิเคราะห์ค่าสหสัมพันธ์ระหว่างการเจริญเติบโตต่อสมบัติต่าง ๆ และทดสอบทางประสาทสัมผัสItem Open Access River cleaner : a game for teaching aquatic ecosystem conservation via garbage management(Mahidol University. Mahidol University Library and Knowledge Center, 2022) Pachara Lersintavanon; Mores Prachyabrued; Worapan KusakunniranNews about pollution and solid waste destructively entangling the cities and water environment, e.g., rivers, has strikingly been coming to light from time to time. As it is irrefutable that humans’ behaviors are essentially root causes of the pollution related problems owing to carelessness and insufficient level of care and attention towards the environment, an attempt to fix such problems is obligatory and must be initiated, principally by promoting self-discipline and highlighting the significance of environmental conservation and deliberately relaying the messages to the people. This project aims to develop a game that can effectively equip people to be more knowledgeable about waste management and conservation of the water environment. Given that games can be easily accessed by people from all walks of life, hopefully, the game I created is able to successfully and ultimately serve the aforementioned purposes. Implication of the Thematic Paper: This project includes a user testing of the game I created, during which observation and feedback gathering are made. The results reveal problems and lessons that can be used to improve my game design to have better development and educational potential in the future. I am also able to learn a way to encourage and build people's conscience toward the environmental topic.Publication Open Access Bacterial Contamination in Raw Shucked Oysters in Shucking Houses and Retail Shops in Chon Buri Province,Thailand(2011) Chaweewun Intarakul; Suwanna Panutrakul; Sirichom Thungkao; ฉวีวรรณ อินทรกุล; สุวรรณา ภาณุตระกูล; ศิริโฉม ทุ่มเก้า; Burapha University. Faculty of Public Health; Burapha University. Faculty of Science. Department of Aquatic Science; Burapha University. Faculty of Science. Department of Microbiology; Mahidol University. Faculty of Science. Toxicology and Management of ChemicalsOysters may be cross-contaminated with bacteria from an unsanitary shucking process and sale. Hence the aims of this study were to compare bacterial contamination in samples of shucked oysters from aseptic shucking, in shucking houses, and in retail shops in Chon Buri Province, and to investigate bacterial contamination in samples from surface areas of equipment, the fresh water used in the shucking process, and oysters processed for sale. Analysis of variance was performed after a logarithmic transformation of bacterial counts was conducted. The results revealed that counts of total bacteria, Staphylococcus aureus, and fecal coliforms in aseptically shucked oysters, were significantly lower than those same measurements in freshly-shucked oysters (p < 0.01, = 0.01, < 0.01, respectively) and in packed-shucked oysters (p < 0.01, < 0.01, < 0.01, respectively). About 90-100% of the shucking equipment was contaminated with total bacterial counts higher than acceptable limits, both before and during use. Fresh water exceeded the standards for total bacteria and coliforms in all samples, both before and after washing. The 40% of unwashed and 50% of washed shucked oysters exceeded the standard for total bacteria. The results indicated that bacterial contamination in these samples may be a consequence of unsanitary cleaning, storage, and handling of equipment and fresh water, including improper temperature controls during oyster processing and sale.Publication Open Access False rumours of disease outbreaks caused by infectious myonecrosis virus (IMNV) in the whiteleg shrimp in Asia(2011) Saengchan Senapin; Kornsunee Phiwsaiya; Warachin Gangnonngiw; Flegel, Timothy W.; Mahidol University. Faculty of Science. Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp)since January 2007 in the Quarterly Report on Aquatic Animal Diseases (QAAD) from the Network of Aquaculture Centers in Asia Pacific (NACA). In most cases, our shrimp samples for which tissue sections were possible showed signs of muscle cramp syndromeItem Open Access Development of quantitative polymerase chain reaction assay for detection of scale drop disease virus (SDDV) in Asian sea bass(Mahidol University, 2021) Sukhontip Sriisan; Chuenchit Boonchird; Siripong Thitamadee; Saengchan Senapineither ATPase or MCP primers showed no cross amplification with DNA extracted from 12 viruses and bacteria commonly found in aquatic animals. However, the former protocol had a detection limit of 2 viral copies per reaction while the latter had 20 copiesPublication Open Access คุณภาพน้ำและการปนเปื้อนของโลหะหนักในน้ำผิวดินของห้วยแม่ตาว จังหวัดตาก(2008-12) ชุตินธร มูลทองน้อย; จำลอง อรุณเลิศอารีย์; มหาวิทยาลัยมหิดล. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์in the area as well as the impact that can effect to the water utilization and the aquatic ecological system. The study results have revealed that mostly the surface water quality of Huai Mae Tao was within the Type III of The Surface Water Standard... for Agriculture and Water Quality for Protection of Aquatic Resources . However, the turbidity and suspended solid levels were found to be varied according to seasonality. These 2 water quality indexes were higher than the allowed standard during the rainy seasonPublication Open Access Microplastic Pollution in an Urban Wastewater Treatment Plant: Unravelling Problems and Proposing Solutions(2025) Anh Tuan Ta; Sandhya Babel; Lukas Klocke; Andreas HaarstickMicroplastics (MPs) are detected ubiquitously in aquatic environments worldwide, with wastewater treatment plants (WWTPs) serving as significant pathways for their entry. This study investigates MP removal efficiency and suggests improvements in aPublication Open Access Population Assessment of Crocodiles in Bueng Boraphet, Thailand(2021) Parntep Ratanakorn; Tatiyanuch Chamsai; Poonyapat Sedwisai; Tat Sujittosakul; Thanaphum Lapjatuporn; Peerawat Wongluechai; Ekasit Tiyanun; Akalak Kunsorn; Somsook Puangdee; Thaweesak Chooma; Kadsirin Mattayasap; Phimchanok Srongmonkol; Jiradej Boonmak; Nareerat Sangkachai.24 individuals per square kilometers. The calculated population of crocodiles in the Bueng Boraphet was estimated to be about 17-37 individuals. In this study, most crocodiles were found in the first transect line located in the aquatic sanctuary area where allPublication Open Access Isolation and biological characterization of bacteriophages which infect Aeromonas hydrophila(2017) Jiraporn Gatedee; Sunsiree Muangman; Pornpan Pumirat; Yuvadee Mahakunkijcharoen; Noppadol Prasertsincharoen; Kanyanan Kritsiriwuthinan; Mahidol University. Faculty of Medical Technology. Department of Microbiology and ImmunologyThis study aims to isolate and biological characterize bacteriophages which infect Aeromonas hydrophila, a causative of aquatic animal diseases. Two A. hydrophila bacteriophages, øAH-S1 and øAH-T5 were isolated from a total 100 water samples