Studies on the taxonomy and Some aspects of biology of the Fishes of the family balistidae From the indian seas (TH 122)

Sahayak, Satish (2003) Studies on the taxonomy and Some aspects of biology of the Fishes of the family balistidae From the indian seas (TH 122). PhD thesis, University of Kerala, Thiruvananthapuram.

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Abstract

Samples of fishes of the family Balistidae were collecfed regularly from landings of hook and line and trawl at Tuticorin and Kanyakumari along southeast coast of India; Vizhinjam and Colachel along southwest coast oflndia during August 1998 to October 2000. Specimens of a few species were collected from trawl, trap, spear, gill net and hook and line landings of Mumbai, Veraval, Chennai, Mandapam and Kelakarai and Minicoy Island (Lakshadweep) were also analysed for this work. Specimens in the collections of Zoological Survey of India (ZSI), Kolkatta and those in the reference collection Museum of the Central Marine Fisheries Research Institute (CMFRI) at Cochin and Mandapam were also examined. 2. The morphological characters like teeth, nasal apertures, gi ll rakers were studied. 3. Based on the shape of the first and second teeth of the upper and lower jaw, fi ve types have been identi fied. 4. The anterior nasal aperture has different shapes, which is species specific but the posterior aperture is similar in all species. Based on the shape of the anterior nasal aperture five types have been identified. S. The outer most branchial arch possesses gill rakers. Based on its shape they are divided into five types. 6. The pattern of arrangement of scales and its eternal morphology was studied. 7. Scales on body and caudal peduncle are diamond shaped, were as scales on cheek are rhomboid, rectangular, square or triangular occurring in different combinations. Scales on abdomen are rhomboid or rectangular or square with round edges. 8. The arrangement of scales on body, abdomen and caudal peduncle were similar between the species. 218

Item Type:Thesis (PhD)
Supervisor(s):Murty, V S R
Uncontrolled Keywords:taxonomy; fish biology; balistidae indian seas
Subjects:Fish and Fisheries > Fish Taxonomy
Theses
Demersal Fishes
Divisions:CMFRI-Cochin > Marine Capture > Demersal Fisheries
ID Code:7198
Deposited By:Dr. V Mohan
Deposited On:29 Jan 2011 17:27
Last Modified:21 Jan 2014 12:24

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