323 research outputs found
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Major and minor fisheries harbours of India. 9. Fisheries jetty at Minicoy, Lakshadweep
At Minicoy, fish catches are landed on the beach adjacent to the villages on the lagoon side during fair season, October to April-May and therefore a fisheries harbour in its strict sense does not exist there
Observations on spawning in captivity of the clown fish, Amphiprion chrysogaster
For marine aquarium fishes, we fully depend
on the exploitation from the wild. In the
present account, spawning of the clown fish.
Amphiprion chrysogaster kept in captivity at
Minicoy is reported
Status of tuna fishery in Minicoy, Lakshadweep
The status of tuna fishery at Minicoy is discussed based on the data for the period
1989 -'99. Pole and line using livebaits and troll operate for its fishery of which the
former contribute more than 90% of the total tuna catch. The total tuna catch fluctuated
from 3071 in 1991 to 1,2431 in 1995 with an average of 8641. The effort in boat
days varied from 2,265 in 1996 to 3,896 in 1989 with an average of 2,915. The C/E
ranged from 152.2 kg in 1991 to 408.8 kg in 1995 coinciding with the lowest and
highest catches respectively. In troll the catch ranged from 91 in 1997 to 281 in 1994
and C/E varied from 8.5 kg in 1997 to 27.7 kg in 1994 corresponding with the
lowest and highest catches respectively. Though the pole and line units are operated
from September to May in general, the success of tuna fishery depend upon the
higher catches in two or three months
Seahorses along Thoothukudi coast
During routine visit to the Mottaigopuram fish
landing centre at Thoothukudi on 27.7.2015 and on
20.10.2015, five numbers of seahorses were
collected from the fish catch kept for auctioning.
These were caught in indigenous trawl operated
along the near shore sea grass beds at Thoothukudi.
This gear mainly targets juveniles of prawn
(especially Penaeus semisulcatus), crabs,
cephalopods and fishes. Occasionally stray numbers
of seahorses are also caught. The species obtained
in the present collections were Hippocampus fuscus,
H. trimaculatus and H. spinosissimus
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Economics of troll line operation during monsoon in Minicoy, Lakshadweep
The Economics of troll line operation during monsoon is given based on the study carried out in 1999. The average initial investment of a troll line unit 5 m OAL with outboard engine of9.9.HP) was found to be Rs.91 , 000/-. The average share of a unit was 616 kg when the fuel was also supplied by the owner along with the craft, outboard engine and gear realising a revenue of RS.28 ,880/-. But the share was 462 kg when the fuel was not supplied realising a gross income ofRs. 21,660/-. The gross profit in the former case was Rs.17, 880/- whereas in the latter case, it was gross income itself indicating the better profitability of the lattersystem
Indigenous substitutes for "Lignum vitae" for making stern bearings for fishing boats
Difficulties are very often encountered in selecting proper
material for making stern bearings for fishing boats. Conventional materials such as white metal, bronze etc. wear out too fast also causing considerable wear to the propeller shaft. Lignum-vitae, a natural wood commonly used for this purpose, is not available on a commercial scale in our country. Results of trials carried out to find out suitable substitutes for lignum-vitae from among indigenous timbers are presented in this paper
Stomach content analysis of the Indian mackerel Rastrelliger kanagurta (Cuvier) from Calicut, Kerala
The food and feeding of the Indian mackerel Rastrelliger kanagurta was studied from Calicut based on 1,551 fishes
ranging in size from 100 to 280 mm total length (TL) collected from both multi-day trawlers and ring net during the period
January to December 2006. There was a preponderance of empty stomachs in all the months. The dominant food item was
copepod. Sand and foraminiferans also formed part of the stomach content. The fish, Bregmaceros sp. was noticed for the
first time in the adult mackerel
Impact of ring net on the mackerel fishery at Calicut
With the introduction of ring net, there was considerable improvement in the mackerel fishery. The mackerel landing was almost fully contributed by ring net. During post-ring net period,16684 manpower brought 970 tonnes of mackerel with a catch per manpower of 58.14 kg. Due to the small mesh size of ring net and their better efficiency, the gear can cause over fishing and hence the fishery has to be watched closely in the coming years
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