Category: Biology | Morphology

Photofeature: Appendages of Giant river prawn, Macrobrachium rosenbergii

Macrobrachium rosenbergii

Giant river prawn (Macrobrachium rosenbergii)

The body of Giant river prawn (Macrobrachium rosenbergii) is divided into two large parts such as cephalothorax and abdomen. Cephalothorax is consist of head and thorax.

Nineteenth pairs of appendages are found in giant river prawn. Appendages are divided into three groups according to their position of attachment. Such as- Cephalic appendage (five pairs), Thoracic appendage …read more

Category: Biology | Miscellaneous | Morphology | Quiz

Quiz: An Introduction to Fisheries Biology

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Category: Biology | Morphology

Air-Breathing Organ of Fishes: Swim Bladder or Air Bladder

Dissected photo of Notopterus chitala showing the air-breathing swimbladder

Dissected photo of Notopterus chitala showing the air-breathing swimbladder

Description: The airbladder or gasbladder or swimbladder is a white glistering saccular organ developing as a diverticulum form the wall of the pharynx in the gut. It is often present among the teleosts. It attains its full development among the spiny-rayed teleosts, …read more