Some Fishery Biology of Molluscivorous Catfish, Heficophagus leptorhynchus in Thailand

The molluscivorous catfish, Helicophagus leptorhynchus is an economic fish in Thailand, but the fish is poorly know. This paper is a review of some biology support data for aquaculture and fisheries. The fish distributed in Mekong-Chaophraya Basin. The spawners migrate to upstream in early flood season for spawning. After hatching, the fish larva migrating in downstream and the juvenile fish move in deep pool of Mekong Basin on dry season. Adult fish live in downstream and large tributary. The fish is omnivorous and bottom feeder. Spawning season of the fish is May-July. Gillnetting and beach seine fisheries are main the catfish＇s fisheries in Thailand and the catfish＇s fisheries season in Mekong River began on January-July.

Buddhist Ethics With Solving the Environmental Problems

This research aimed to investigate （1） the concept of environmental ethics between the Western and Buddhist ways; （2） To compare the concept of environmental ethics between the Western and Buddhist ways; （3） To analyze the solving of environmental problems under the Buddhist concept. The results showed that the Buddhism which has had the concept focusing on all living things and being friendly to the nature, having no history of occupying, encroaching and destroying the living things. Nevertheless, giving the values on the environment is still far to the facts of way of life of most humans. However, regarding Buddhist essence that emphasizes that the human as a part of the nature is not conflicted with the ethical values on nature. Complementary to all living things in nature is close to the Dharma practice which starts at itself and knows itself. Dharma practice in Buddhism has assumed to be the individual responsibility on environment itself. Importantly, the Buddhist way of life on environment according to such implication has occurred and really existed in the history of mankind.

Phytoremediation of engineered nanoparticles using aquatic plants: Mechanisms and practical feasibility

Certain plants have demonstrated the capability to take up and accumulate metals,thus offering the potential to remediate metal-contaminated water and sediment.Several aquatic species have further been identified which can take up metal and metal oxide engineered nanoparticles(ENPs).It is important to evaluate if aquatic plants exhibiting potential for metal phytoremediation can be applied to remediation of metallic ENPs.Understanding the interactions between ENPs and aquatic plants,and evaluating possible influences on metal uptake and phytoremediation processes is therefore essential.This review article will address the feasibility of green plants for treatment of ENP-affected aquatic ecosystems.Discussion will include common types of ENPs in current use;transformations of ENPs in aquatic systems;the importance of microorganisms in supporting plant growth;ENP entry into the plant;the influence of microorganisms in promoting plant uptake;and recent findings in phytoremediation of ENP-affected water,including applications to constructed wetlands.