Fungal disease বা ফাংঙ্গাল রোগ বা ছত্রাকজনিত রোগ বলতে ছত্রাকের আক্রমণে সংঘটিত রোগকে বোঝায়। মাছ বিশেষত চিংড়ি স্যাপ্রোলিগনিয়া (Saprolegnia) নামক ছত্রাকদ্বারা সহজেই আক্রান্ত হয়ে থাকে। এর ফলে ফুলকায় বিন্দু বিন্দু দাগ দেখতে পাওয়া যায়। এক সময় খোলস নষ্ট হয়ে য়ায়।
Lips
Lips (Singular: Lip) are soft and movable two fleshy and visible opening parts (upper and lower) of mouth of humans and many animals. It serve as the opening for food intake and in the articulation of sound and speech.
Weberian apparatus
Weberian apparatus (Weberian ossicles) is a chain of four small bones that connect the labyrinth of internal ear (auditory system) to the air bladder of fishes belonging to the superorder Ostariophysi (orders Cypriniformes, Gonorynchiformes, and Siluriformes). This chain comprises four
Nose
Nose is an organ that projecting above the mouth on the face of higher vertebrates (reptiles, aves and mammals), containing one pair of nostrils and detecting smells. Nose is also used for breathing. Fishes and amphibians have one or two
Nares
Nares is the plural form of Naris. Naris (plural nares) or nostril is one of the two channels of the nose of higher vertebrates (reptiles, aves and mammals) that functioning to detect smell and also used for breathing. Fishes and
Naris
Naris (plural nares) or nostril is one of the two channels of the nose of higher vertebrates (reptiles, aves and mammals) that functioning to detect smell and also used for breathing. Fishes and amphibians have no nose. They have only
Nostril
Nostril or naris (plural nares) is one of the two channels of the nose of higher vertebrates (reptiles, aves and mammals) that functioning to detect smell and also used for breathing. Fishes and amphibians have no nose. They have only
Notochord
A longitudinal, flexible, rod-shaped structure that is main support of all chordates body during some stages of their development or throughout their lives. In primitive chordates, such as lancelets and tunicates, retain a notochord throughout their lives In vertebrates, the
Feathers
Feathers (singular: feature) are one of the integumentary derivatives of birds (and some extinct dinosaurs) that cover most of all parts of body. It is a strong, light, elastic, heat insulator and water proof growths of epidermis that helps in
Birds
Feather bearing warm-blooded egg-laying vertebrates are known birds (singular bird). Such as Magpie-Robin, Grebe, Pelican, Cormorant, Stork, Eagle, Pigeon, Pee-cock, Heron etc. All birds are belonged to the class Aves. Wings of birds are the modification of forelimbs. On the
Tongue
The tongue is a muscular and movable organ found in the mouth cavity of most of all vertebrates. Numerous taste buds cover the surfaces of the papillae of tongue. Test buds detect different types of taste such as sweet, salty,
Ghost fishing
Ghost fishing means the continued capturing of aquatic organism (such as fish, turtle, dolphin etc.) by a discard fishing gear (mainly net, traps, pots, hooks, long lines etc.). The discard (lost, dumped or derelict) fishing gears that continued capturing fish
Ghost gears
Ghost gears (ghost nets, ghost traps etc.) are fishing gears that have been lost or left or dumped in any water bodies (mainly sea, ocean etc.) by mostly fishermen and continued to capture aquatic organism. In the simple words, the