Food Capture by Fishes
According to Karel Liem (1980) most of the enormous variety and range of foods eaten by fishes is obtained through...
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Foods and Characteristic Adaptations of Fishes
The vast majority of living fishes are predatory. Of some 1100 species of extant elasmobranchs, only 13 (1.2%) – the...
বিলেতে সাড়ে সাতশ দিনঃ গল্প-কথায় লন্ডন শহরের অলিগলি
গ্রন্থের নামঃ বিলেতে সাড়ে সাতশ দিন ধরণঃ ভ্রমণকাহিনী লেখকঃ মুহাম্মদ আবদুল হাই প্রকাশঃ ১৯৫৮। চলুন ভ্রমণকাহিনীটি একনজরে পড়ে নেওয়া যাক:...
Teeth of Fishes
Living Agnathan fishes possess conical, rasping tooth-like structures made of keratin, the same structural protein found in human hair and...
Osmoregulation in Chondrichthyes
Blood ionic composition in marine elasmobranchs and holocephalans is some what higher than in teleosts, but its osmolarity is very...
Food Choices of Fish
But optimal foraging strategies may not remain identical throughout an organism’s lifespan and many species exhibit a trophic ontogeny or...
The Osmotic Problem of Fishes
Different fishes live in waters from almost distilled purity, to hypersaline ponds where they have difficulty keeping below the surface....
Circulation in Fishes: Primary and Secondary
The oxygen acquired (from water or air), and the carbon dioxide excreted at the gills, have to be transported around...
Respiration in Hagfish and Lampreys
Hagfish In hagfishes, unidirectional water flow through the serial muscular gill pouches is chiefly brought about by rolling and unrolling...
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