Category: Costal and marine | Management

Chemical factors affecting the life of shellfishes

In previous feature, different kinds of physical factors affecting the life of shellfishes were described. The most important physical factors are light, temperature, turbidity, depth, water current, substrate etc. In this feature, different types of chemical factors (viz. salinity, pH and dissolved oxygen) affecting the life of shellfish will be explained.

Salinity:

Salinity is a major environmental factor …read more

Category: Costal and marine | Management

Physical factors affecting the life of shellfishes

In nature, shellfishes are very crucial both in ecological and economical point of view among calcifying species. They play an important role in ecological balance and thus they are termed as engineer of the ecosystem, governing energy and nutrient flows in ecosystems, providing shelters and abodes for many benthic organisms and constituting an important food source for birds, crabs, starfishes, fishes and as well as for dairy and poultry. In …read more

Category: Costal and marine | Management | Resource | Waterbody

Bay of Bengal: A Bay of Prospects towards National Flourishment

Coastal artisanal fishing

Coastal artisanal fishing

Bangladesh is endowed with vast marine and coastal waters having an area of about 1.5 times more than that of her total land mass. The environment is under the dynamic interface between terrestrial systems and marine systems dominated by wave actions …read more

Category: Costal and marine | Management

Fisheries News Analysis: New Threats on Hilsa Fishery of Bangladesh

National Fish of Bangladesh: Hilsa

National Fish of Bangladesh: Hilsa

A report published by Mr. M Jasim Uddin from Barguna in a famous bangle daily newspaper “Prothom Alo” on 12.07.2011 titled as “Indian fishermen art driving operation in Bangladeshi water

In his report …read more

Category: Costal and marine | Freshwater | Livelihood | Management

Climate change: A threat for fishermen communities

Bangladesh is situated at the interface of two contrasting settings with the Bay of Bengal and the North Indian Ocean to the south and the Himalayas to the north. This gives the country the life giving monsoons on one hand, and the catastrophic disasters like tropical cyclones, storm surges, floods, droughts and erosion, on the other. The geographical location, low and almost flat topography, very high population density etc. have …read more

Category: Costal and marine | Freshwater | Management

Aquapollution and its impact on aquatic environment

Aqua Pollution is said to be the oldest issue for the world but the whole world somehow manage to talk about it again and again. Sometimes there come some suggestions but it’s the ultimate truth that aqua pollution didn’t, doesn’t and will not stop because of the continuous movement of human civilization. Several literatures has already set light on the identified point and non-point sources that cause aqua pollution. But …read more