• A study on the trend of sports fishery of Mafia Island (Tanzania) along the East African coast from 1961-1972

      Adibi, S.A.H.; Desai, B.N.; Dwivedi, S.N.; Varshney, P.K. (1977)
      Mafia waters in the western Indian Ocean on the east coast of Africa is a natural attractive area for fishing. It has extensive coral beds which harbour good fish life and attracts sport fishery in the area. About 12 commercially important fishes listed are caught by sports fishermen. The data indicates that this area can become an attractive centre for sports fishery almost throughout the year with peak season from November to February. Long-term planning of the fishery is necessary. The conservation measures should be evolved and gan fishing, dynamiting or any other kind of distructive fishing should be prohibited. This area has natural potential to become a sports fishing centre in the future and a great attraction for tourists and anglers.
    • A compiled key to the recent Stomatopoda of the Indo-West Pacific region

      Chhapgar, B.F.; Sane, S.R. (1977)
      A taxonomic key is presented of the Stomatopoda (family Gonodactylidae) of the IndoWest Pacific Region.
    • Studies on the occurrence of coliforms and streptococci in coastal waters of Bombay

      Dwivedy, Amita N.; Abidi, S.A.H. (1977)
      The distribution of coliforms and streptococci in Bombay coastal waters was investigated in order to determine the state of pollution in the area. Findings show the incidence of pollution to be of a recurring nature, primarily due to discharge of raw or improperly treated sewage; thus regular monitoring of the incidence of coliforms and streptococci is of importance in determining the public health safety of the beaches and coastal waters.
    • A note on the culture of Chanos chanos (Forskal) at Brackishwater Fish Farm, Kaninada

      Dwivedi, S.N.; Somalingam, J.; Tiwari, B.N.; Murty, M.N. (1977)
      The culture of Chanos chanos to marketable size within a three months period, is described. Procedures involved include phased manuring coupled with proper water management to keep up enhanced primary productivity. Results show that, under monoculture, with low-input technology it is possible to produce 3,000 kg fish per hectare per year.
    • Zooplankton population in the polluted environment of Thana Creek and Bombay Harbour

      Desai, B.N.; Gajbhiye, S.N.; Jiyalal Ram, M. (1977)
      Hydrographical and biological parameters of Thana Creek and Bombay Harbour were studied to assess the prevailing water quality. Zooplankton samples were collected from various stations during January 1975 to July 1975. The qualitative distribution of zooplankton was found to be very irregular and fluctuating. Copepods were the dominant taxa followed by lucifers, chaetognaths, decapod larvae, ctenophores, hydromedusae, fish larvae and polychaetes. To a certain extent the distribution of zooplankton is affected by variation in salinity during different seasons, also along the length of the creek. Pronounced effect of pollution on zooplankton biomass was also observed.
    • Canning of edible oyster

      Badonia, Rajendra (1977)
      Edible oyster, Crassostrea cucullata, was canned in different filling media viz, its own nector, brine and double refined vegetable oil, to study the effect of each, on the flavour and general quality characteristics of the final product. A method was worked out to produce a canned product, of appealing flavour form oysters after light smoking. The paper reports the results of these studies.
    • Biomass and composition of zooplankton in and around Gulf of Kutch

      Govindan, K.; Kasinathan, R.; Desai, B.N. (1977)
      The faunal composition, distribution and abundance of zooplankton from 28 stations in and around the Gulf of Kutch, were studied during INS Darshak cruise in January, 1975. Zooplankton biomass was about 4.5 times more in the outside Gulf region (mean: 50.3 ml/100 m super(3)) than in the inside Gulf (mean: 11.1 ml/100 m super(3)). The mean zooplankton biomass of Dwarka (66.3 ml/100 m super(3)) was about 2.5 times more than that off Okha (26.8 ml/100 m super(3)). A rich zooplankton production in the Saurashtra waters corresponded to a rich fishery prevailing in this region.
    • Contribution of zooplankton to the fishery potential of some environments

      Nair, V.R. (1977)
      Difference in zooplankton production in estuarine, coastal and oceanic realms of the Indian Ocean has been correlated to the fishery potential of the concerned area. In the estuarine habitat the estimated rate of secondary production can not sustain a fishery of the present magnitude. Direct correlation between fish landing and zooplankton is observed in the coastal waters. Compared to coastal waters zooplankton standing stock is low in the open ocean and this low production is compensated by a wider area. The estimated fishery potential of the ocean is much more than what is being exploited.
    • Biology and morphometry study of Drepane punctata (Cuv and Val) at juvenile stage of Bombay coast

      Mishra, K.N.; Choudhary, P.S. (1977)
      The metric and meristic characters of Drepane punctata from Versova Fish Landing Centre of Bombay have been studied. The meristic characters showed considerable variations. The number of dorsal fin rays were relatively stable characters. Statistical interpretation of metric data indicated that there is a direct relationship between the preanal, predorsal in relation to total length and eye-diameter in relation to head length.
    • Length-weight relationship of Drepane punctata (Cuv. & Val.) at juvenile stage off Bombay coast

      Mishra, K.N.; Choudhary, P.S. (1978)
      The study of the length weight relationship is highly useful to the fishery biologists in the study of population dynamics of fish and for determining the pattern of growth of stock. The parabolic equation for the length-weight relationship of Drepane punctata juveniles off the Bombay coast, expresses the value of "n" 2.83, indicating that the growth rate is less than the cube length.
    • Variability in the distribution of planktonic fish eggs and larvae in the nearshore waters off Bombay

      Gajbhiye, S.N.; Nair, Vijayalakshmi R.; Desai, B.N. (1978)
      Distribution of planktonic fish eggs and larvae in the nearshore waters off Bombay was studied during November 1979 to December 1980. Monthly samples were collected along three transects (Versova, Mahim and Thana) covering eleven stations which represented different environmental conditions. Fish eggs and larvae were common in the area of study with maximum abundance in December 1979 and April/August 1980. Mean density of fish eggs was maximum along the Mahim transect while population of larvae was more in the Versova transect. Total number of families of fish larvae represented in the collections increased from nearshore to offshore area.
    • A compiled key to the recent Stomatopoda of the Indo-West Pacific region

      Chhapgar, B.F.; Sane, S.R. (1978)
      An identification key is given for the Stomatopod family Lysiosquillidae occurring in the Indo-West Pacific region.
    • Strategy of fish seed production in India

      Varshney, P.K. (1978)
      In tropical countries like India, climatic conditions vary in different parts, as a result the breeding of fast growing species such as Catla and silver carps poses considerable problems due to erratic or late monsoon or prolonged dry spell. Hence it is not possible to meet the fish seed requirement of the country. Therefore: to meet the future requirement and to over-come the environmental conditions a Modern carp Hatchery CIFE D-81 was designed. The system provides optimum temperature, silt free clean, cool, highly oxygenated water, low current and continuous removal of metabolites. It has been successfully demonstrated at Rawatbhata (Rajasthan), Badkhal (Haryana), Badbhada (M.P), Guntur and East Godavari District (A.P). Recently a Modern Carp Hatchery was installed in a semi-arid zone, Damdama (Haryana), during 1984, where it has produced record 1.88 crores of fish seed and worked successfully.
    • Break through in 10 million fry production at Khutelabhata fish seed farm, Durg, Madhya Pradesh

      Gopalkrishna, G. (1978)
      This paper presents a resume of the work carried on the production of 10 million major carp fry by stocking at the rate of 10 million spawn per hectare in 38 nursery ponds covering 2.1 ha. water spread area at Khutelabhata fish seed farm, Durg, Madhya Pradesh. Observations made on the effect of various types of feed on survival and growth rate of Indian Major carp fry in nurseries are reported. Physico-chemical parameters and plankton populations in the three sets of nurseries are given. The experiments indicates that optimum survival rate of fry can be obtained by feeding tender spawn with animal protein feed. The economic viability of the experiment discussed shows that for a little increase in the expenditure on improved artificial food the survival and growth of fry can be enhanced.
    • Vocational education and fisheries

      Dwivedi, S.N.; Ravindranathan, V. (1978)
      Vocational courses in fisheries are offered in 4 states in India. The technologies in fisheries developed offer good scope for vocational training for self employment. There is an urgent need to have radical revision of the course content to make the students vocationally competent.
    • A comparative study on the hatching of common carp eggs in hapa and hatchery (model CIFE D-80)

      Dwivedi, S.N.; Tiwari, V.K.; Reddy, A.K. (1978)
      Common carp (Cyprinus carpio) eggs were incubated to study the efficiency of hatching in hapa and hatchery. During incubation the recorded temperature was 21-28 degree C and 20-31 degree C, dissolved oxygen 6-9 ppm. and 3-5 ppm., total alkalinity 180-250 ppm. and 28-62 ppm. respectively in the hatchery (model C.I.F.E. D-80) and hapa. CO sub(2) was totally absent in the hatchery, but recorded 3-10 ppm. in the hapa. The flow of water was maintained at 1.25 l/minute/jar in the hatchery. Under the above environmental conditions the eggs hatched in 42-51 hrs. in the hatchery and 61-81 hrs. in the hapa from egg to spawn thereby establishing the hatchery to be a better hatching system for carp eggs.
    • Preliminary observations on the nursery management of post larvae of Penaeus monodon

      Somalingam, J.; Murthy, M.N. (1978)
      Post larvae of tiger prawn (Penaeus monodon) of the size 10-12 mm were stocked at the rate of 10 lakhs/ha in a manured cement nursary pond which was initially fertilized with chemical manures. Water exchange was attended once in a week. Artificial feeding was given in the form of minced clam meat. After a month, the pond was harvested. The juveniles which have grown to 40-46 mm size were recovered. The percentage of survival from post larvae to juveniles was 85.45%.
    • Length-weight relationship of Upeneus sulphureus (Cuvier) collected off Maharashtra coast

      Ali, Musharraf (1978)
      The length-weight relationship of Upeneus sulphureus was studied on the basis of 125 females and 103 males, collected during the 27th cruise of research vessel M.V. Saraswati in the month of September, 1984. The correlation coefficient was found significant at 5% and 1% level respectively for male and female. In both the sexes, the regression co-efficient was found higher than three. Analysis of covariance was also carried out for the F test and F distribution.
    • A note on hydrography off Bombay during the end of May, 1983

      Patil, M.R. (1978)
      A brief account is given of hydrographic observations made during a cruise conducted off Bombay, India, on the 26 May 1983. Vertical distribution charts are included for temperature, salinity and dissolved oxygen.
    • A note on morphometric and length-weight relationship of Upeneus moluccensis (Bleeker) off Veraval coast

      Ali, Musharraf; Sanjeevan, V.N. (1978)
      Upeneus moluccensis were collected from the catches of bottom fish trawl of "M. V. Saraswati" off Veraval coast in the area lat. 20 degree 26 N and long. 70 degree 35 E.The fish were analysed for length-weight relationship and morphometric characters. The fishes were found to vary from 116 to 161 mm in length and 20.0 to 50.0 g in weight. The exponent value and correlation coefficient for length-weight relationship was found to be 2.73 and 0.991 respectively.