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Category: Costal and marine | Management 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 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: Non-fishes | Resource Shrimps/Prawns: Almost all farmed produced shrimps are exported as processed frozen sea food and is the second largest export item in Bangladesh. Presently 162 processing plants are in operation among which 74 processing plants are EU approved. Directly and indirectly more than 2 million people are engaged in upstream and downstream activities related to shrimp industry in the country- in harvesting, culture, processing and exporting (DoF, 2012). Majority of …read more Category: Non-fishes | Resource
Giant River Prawn What is Shellfish? Generally shellfish are aquatic invertebrates possess a shell or outer skeleton applied to a variety of marine and freshwater life. They are usually crustaceans and mollusks. Despite the name, shellfish are not a kind of fish, but are simply animals that live in water. They are mainly …read more Category: Biodiversity | Management
Hilsa shad (Tenualosa ilisha): The national fish of Bangladesh During entire life, Hilsa shad (the national fish of Bangladesh) migrates both from sea to freshwater and freshwater to sea to meet the biological demand. Hilsa shad (Tenualosa ilisha) lives in the …read more Category: Event | Public Awareness
Hilsa shad: The national fish of Bangladesh Jatka conservation week, 2013 has begun on 26 February, 2013 aiming at creating awareness of preserving jatka for boosting Hilsa production. It is organized by the Department of Fisheries (DoF) under the Ministry of Fisheries and …read more
Congaturi halfbeak, Hyporhamphus limbatus Systematic position Phylum: Chordata Class: Actinopterygii (Ray-finned fishes) Order: Beloniformes (Needlefishes) Suborder: Belonoidei (= Exocoetoidei) Superfamily: Exocoetoidea Family: Hemiramphidae (Halfbeaks) Subfamily: Hemiramphinae Genus: Hyporhamphus Species: H. limbatus Synonyms Hemiramphus gorakhpurensis Srivastava, 1967 Hemiramphus limbatus Valenciennes, 1847 Hemiramphus tridentifer Cantor, 1849 Hemirhamphus sinensis Günther, …read more |
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