On the juveniles of Sardinella fimbriata (Val.) and Sardinella gibbosa (Blkr.)

Two species of sardines, namely, Sardinella fimbriata and Sardinell glbbosa contribute to the sardine fishery at Lawson's Bay, Waltair, extending over a period of 9-10 months (October to June or July) and the fishery is mainly supported by the juveniles of the two species, S. fimbriata being more abundant. Though the adults of the two species could be distinguished on the basis of their height-length ratios, the specific identification of the juveniles is difficult due to the close similarity in their external appearance. Excepting black pigmentation, all the colouration which aids to separate the two species in fresh condition, is observed to disappear after fixation and even after a few hours post-mortem. Hence a detailed study of some of the morphometric and meristic characters has been made to find out characters that could be used to distinguish the juveniles of the two species

Studies on the maturation and spawning habits of some common clupeoids of Lawson's Bay, Waltair

Clupeoid fishes, chiefly represented by the sardines {Sardinella spp.), the whitebaits {Anchoviella spp.), the anchovies (Thrissocles spp.) and the rainbow sardines {Dussumieria spp.), form an important fishery at Lawson's Bay, Waltair and the catch statistics for a period of seven years (1950-56) show that on an average about 393 tons of these fishes are landed annually constituting about 37-5 per cent, of the total catch. The sardines rank first in importance and form on an average about 22 per cent, of the total catch

On the early development of an Ophichthyid egg from the Lawson's bay, Waltair

The eel eggs are relatively rare in the Indian coastal waters and consequently their occurrence has been recorded only on a few occasions. Aiyar, Unny and Varkey (1944) were the k s t to observe the presence of eel eggs in the plankton of the Madras coast, but since the full paper has not so far been published details regarding the eggs are not available. Nair and Bhimachar (1950) recorded the occurrence of a few eggs and early larvae of the eels in the plankton off Tuticorin Bay, Gulf of Mannar. Their account deals with three varieties of eel eggs of which one was with an oil globule while the other two were without it

Not Available

Not AvailableTwo species of sardines, namely, Sardinella fimbriata and Sardinell glbbosa contribute to the sardine fishery at Lawson's Bay, Waltair, extending over a period of 9-10 months (October to June or July) and the fishery is mainly supported by the juveniles of the two species, S. fimbriata being more abundant. Though the adults of the two species could be distinguished on the basis of their height-length ratios, the specific identification of the juveniles is difficult due to the close similarity in their external appearance. Excepting black pigmentation, all the colouration which aids to separate the two species in fresh condition, is observed to disappear after fixation and even after a few hours post-mortem. Hence a detailed study of some of the morphometric and meristic characters has been made to find out characters that could be used to distinguish the juveniles of the two species.Not Availabl

Not Available

Not AvailableClupeoid fishes, chiefly represented by the sardines (Sardinella spp.), the whitebaits (Anchoviella spp.), the anchovies (Thrissocles spp.) and the rainbow sardines (Dussumieria spp.), form an important fishery at Lawson's Bay, Waltair and the catch statistics for a period of seven years (1950 - 56) show that on an average about 393 tons of these fishes are landed annually constituting about 37-5 per cent, of the total catch. The sardines rank first in importance and form on an average about 22 per cent, of the total catch.Not Availabl

Not Available

Not AvailableThe eel eggs are relatively rare in the Indian coastal waters and consequently their occurrence has been recorded only on a few occasions. Aiyar, Unny and Varkey (1944) were the k s t to observe the presence of eel eggs in the plankton of the Madras coast, but since the full paper has not so far been published details regarding the eggs are not available. Nair and Bhimachar (1950) recorded the occurrence of a few eggs and early larvae of the eels in the plankton off Tuticorin Bay, Gulf of Mannar. Their account deals with three varieties of eel eggs of which one was with an oil globule while the other two were without it.Not Availabl