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Analysis of Design Features of Fish Tiawls and.pdf.jpg
Reprint
2003
ANALYSIS OF TRAWL DESIgN

The investigation deals with the comparison of body ProPortions of fish trawls and coastal shrimp trawls of Thoothukkudi coast with each other and with those of a standard FAO fish cum shrimp trawl. Significant variations could be noticed between fish trawls and coastal shrimp trawls of Thoothukkudi coast with respect to Parameters viz. length of bottom wing, b...

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Antibiotic Resistance Patterns of Escherichia coli and.pdf.jpg
Reprint

The incidence and antibiotic rqsistance pattern of E. croli and Saltrll.:lwlla from water, beach sand and fish collected from four fish Ianding centres of Thoothuktrdi were studied. Presence of E. coli was confirmed in 90%, 92./. and 797o of watet beach sand and fish samples .respectively, while Salnronclla was detected in 25% of water and sand samples and 77Yo ...

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Bacterial inbidence in water and sand at fish landing sites along the.pdf.jpg
Reprint
2005-06
Fisheries College and Research Institute,Thoothukudi

Quantitative and qualitative analysis o( bacterial flora of samples of water and beach sand collected from four fish landing sites of Thoothukudi was done for one year from June 2003 to May 2004. Although the bacterial counts varied widely in water and sand samples from Thirespuram landing centre, Fishing harbour, South landing centre and Port beach landing cent...

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Breeding biology of the spineless cuttlefish.pdf.jpg
Reprint

Studies on the seasonal occurrence of maturity stages of Sepiella inermis revealed that this species is a prolonged breeder as mature and spent specimens were recorded almost round the year. Two peak spawning periods, one in November and another in March were observed. Mature animals were represented by a wider length range ruling out the possibility of semelpa...

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Comparative Fishing Efficiincy of Lobster Tkaps.pdf.jpg
Reprint

Fishing efficiency of lobster traps relies on various factors like design, shape and material of the trap and bait used. investigations on suitable design for lobster trap was attempted using six different designs such as rectangular with synthetic webbing, rectangular with steel wire, hemispherical, circular, semi-cylindrical and trapezoidal. The fishing effici...

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DETERMINATION OF OPTIMUM MESH SIZE FOR GTLL NET TO EXPLOIT.pdf.jpg
Reprint

Thunnus tonggol, a coastal tuna popularly called long tail tuna forms an important fishery in Thoothukkudi coastal waters from June to September and are caught in gill nets with the mesh size ranging from 6.0 to 13.5 cm. The fishery is constituted by the length group 300mm to 575 mm The present study deals with the optimization of mesh size to capture the mature...

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Distribution of luminescent Wbrio harveyi and their bacteriophages in a.pdf.jpg
Reprint

Luminescent Vibro harveyi is a natural microflora of marine and coastal water bodies and is associated with mortality of larval shrimp in penaeid shrimp hatcheries. It is also known that the bacteriophages occur virtually in all places where their hosts exist. ln this study, distribution of luminescent V.harveyi and the bachtcriophages affecting these hosts was exa...

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Effect of antibiotics on the gfowth and maturation.pdf.jpg
Reprint
2000-12
Fisheries College and Research Institute, Thoothukudi, Tamilnadu Dr.J.Jayalalitha fisheries University, Nagappatinam

The investigation was aimed at determining the effect of antibiotics on the growth and maturation of goldfish. The fishes were stocked in rectangular cement tanks and fed with artificial feed incorporated with antibiotics (virginiamycin and oxy'tetracycline) at three different concentrations. Among the doses tested for virginiamycin 50 ppm treatment showed high...

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Effect of biofilter on the environmental parameters.pdf.jpg
Reprint
2004-07
Fisheries College and Research Institute, Thoothukudi, Tamilnadu Dr.J.Jayalalitha fisheries University, Nagappatinam

The investigation was aimed at determining the effect of biofilter on the environmental parameters and growth of goldfish. The goldfish were reared in the flowthrough circular cement cisterns connected with biofilter unit and without biofilter. The important environmental parameters were estimated for a period of two months. The water pH and DO levels showed diurna...

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chloride.pdf.jpg
Reprint
2001-12
Fisheries College and Research Institute, Thoothukudi, Tamilnadu Dr.J.Jayalalitha fisheries University, Nagappatinam

The investigation was aimed at determining the effect of vitamin BD and cobalt chloride on the growth and maturation of goldfish. The fishes were stocked in rectangular cem*ent tanks and fed with artificial feed incorporated with vitamin B12 and cobalt chloride at three d.ifferent concentrations. cobalt chloride incorporated at Z.b ppm gave positive results bot...

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survival.pdf.jpg
Reprint
2000-04
Fisheries College and Research Institute, Thoothukudi, Tamilnadu Dr.J.Jayalalitha fisheries University, Nagappatinam

Deb with 20, 30, ard 4070 protein level were formulated and prepared. Fifteen day old fry were stocked in da$ic troughs at densities of 10 and 20 fry/L. The feed with 40% crude protein showed better performance under the stocking density of 10 fry/L followed by 30 and 20 % protein diets. Fry reared at the higher stocking density(20/L) showed relatively better fish...

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growth.pdf.jpg
Reprint
2003-03
Fisheries College and Research Institute, Thoothukudi, Tamilnadu Dr.J.Jayalalitha fisheries University, Nagappatinam

The investigation was aimed at determining the effect of livefood organisms on the growth and maturation of goldfish.Artemia.fed,fishes recorded highest mean weight gain. The individual mean weight gain of a fish per day was recorded to be 0.0439 for adult goldfish fed with Artemia,0.0259 for the earthworm fed fishes and 0.023g in control. Growth rate was almos...

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