Results 51 to 60 of about 3,077 (230)

The effects of green tea extract additive feeds on the growth performance and survival rate of the giant freshwater prawn (Macrobrachium rosenbergii) [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2005
This study was designed to examine the effects of green tea extract (GTE) additive feeds on the growth performance in the giant freshwater prawn. Two separate trials were determined by using two different stages of prawn for initial stocking, one was the
Pimpimol, T.   +3 more
doaj  

Geothermal aquaculture: a guide to freshwater prawn culture [PDF]

open access: yes, 1980
Biological data of the Malaysian prawn, Macrobrachium rosenbergii, are summarized. A history on its rearing techniques is given, but through the use of geothermal water or industrial warm water effluent, its range can be expanded. The use of wasted geothermal water at the Oregon Institute of Technology for prawn ponds is noted.
Hayes, A., Johnson, W.C.
openaire   +2 more sources

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao   +10 more
wiley   +1 more source

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva   +6 more
wiley   +1 more source

Fish Space Use and Behavior in an Aquarium: The Use of Microhabitats as Enrichment

open access: yesZoo Biology, EarlyView.
The inclusion of microhabitats in a stream tank serves as environmental enrichment for fish in human care. ABSTRACT Environmental enrichment is an important tool to maintain the health and well‐being of animals in human care, but studies of environmental enrichment for fish in human care have lagged behind those of land animals.
Avery Millard   +14 more
wiley   +1 more source

Optimization of integrated multi-trophic aquaculture systems for the giant freshwater prawn Macrobrachium rosenbergii

open access: yesAquaculture Environment Interactions, 2018
Traditional monoculture farming of the giant freshwater prawn Macrobrachium rosenbergii causes a deterioration in water quality as a result of effluent discharge, leading to frequent disease outbreaks and environmental pollution.
Dong, X, Lv, L, Zhao, W, Yu, Y, Liu, Q
doaj   +1 more source

Artificial light at night and invasive signal crayfish alter aquatic‐terrestrial food webs

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Resource flows across aquatic‐terrestrial boundaries are increasingly affected by multiple stressors, such as artificial light at night (ALAN) and aquatic invasive species, which can alter the availability of resources for consumers.
Collins Ogbeide   +9 more
wiley   +1 more source

A prototype pond water management system (dissolved oxygen, pH and temperature) for giant freshwater prawn farming in Pak Phanang, Southern Thailand

open access: yesHeliyon
Significant income was promised by giant freshwater prawn farming, which served as a key occupation for farmers. However, challenges were faced by traditional methods, including difficulties in selling prawns of incorrect sizes, limited market demand ...
Panyapong Songpayome   +6 more
doaj   +1 more source

Rising Tides, Falling Harvests: Examining the Effects of Salinity Intrusion on Paddy Production in Vietnam's Mekong Delta

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT Rising sea levels and salinity intrusion increasingly threaten rice farming in Vietnam's Mekong Delta. Using a district‐level panel dataset from 2000 to 2020, this study examines the impacts of salinity on Winter–Spring rice yields and acreage and how farmers adapt to salinity risk.
Huong Nguyen   +3 more
wiley   +1 more source

Effect of different levels dietary vitamin C on growth performance, muscle composition, antioxidant and enzyme activity of freshwater prawn, Macrobrachium malcolmsonii

open access: yesAquaculture Reports, 2016
In the present study was conducted to examine the effects and interactions of dietary vitamin C levels on the growth performance, antioxidant ability, muscle composition and enzyme activity in freshwater prawn Macrobrachium malcolmsonii (M. malcolmsonii).
Annamalai Asaikkutti   +4 more
doaj   +1 more source

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