Visitors Counter


Fisheries Research Station

Junagadh Agricultural University

Port Okha– 361350 Dist : Jamnagar

Year of Establishment : 1969
Port Okha is a peninsular place, surrounded by Gulf of Kutch from north-east side and Arabian Sea from west. The place is linked to Dwarka, a holy pilgrimage place situated south of Okha about 32 kms through road. Major population comprise of fishermen community engaged with active fishing in the Gulf of Kutch and Arabian Sea. About 2000 mechanized boats are engaged in active fishing during season from August to May. Fisheries Research Station is situated on the northern side of Okha township. Geological location is in between Lat' 220 68'N - Long 690 05’ E.
The research station was established in the year 1969, under state Fisheries department.
The main objective was to carry out survey of pelagic and demersal fishery resources along with effect of industrial effluents on the biota of the affected area. The station was meant for carrying out Marine Biological Research and hence it was known as MBRS. The aspect under research was collection of natural brooders of Penaeus merguiensis and P. monodon. Ready spawners were collected through departmental vessels and seeds were produced for its culture as well as for sea ranching. There was separate wing for value added product preparation from trash fishes. Most of the research and extension activities were transferred to the then GAU except mechanized boats and resource survey scheme. At present this research station is under roof of Junagadh Agricultural University.
Faculty Profile :
Name & Designation
Name of Project Assigned at Present
Dr. N. H. Joshi
Research Officer
Research Officer at Fisheries Research Station, Okha, office with following projects.
Heading Marine Algae Department.
Working on Seaweed Cultivation (K. alvarezii), Taxonomic identification of seaweed, phycocolloid extraction and estimation.
Working on Phytoplankton community structure under INCOIS funded project, “Effect of optically active substances on diversity in Phytoplankton community structure off Gujarat” (As PI)
Working on ocean state forecast under INCOIS funded project, “Ocean State Forecast Validation and research (off okha and veraval coasts of Gujarat)” (As PI)
Shri A. S. Kotiya
Asstt. Research Officer
(At Mahuva on Pool)
Shri M. P. Patel
Sr. Res. Asstt
Shrimp Hatchery, Micro-algal culture, Rotifer study, Aquaculture
Shri. P. R. Tank
Sr. Res. Asstt
Shrimp Hatchery, Shrimp larval rearing, shrimp maturation and Aquaculture. Extension department
Shri. M. K. Bhalala
Sr. Res. Asstt
Fish processing and Marine Coastal Pollution unit
Research projects and schemes – ongoing  :
Non Plan : Matsya Sanshodhan Yojana 
Study of Bio-assay Test on Industrial effluent released in Marine Coastal area
Plan Scheme: 12950
Establishment & Development of Research in Fisheries at Okha
Following experiments are going on under the scheme
  • Effect of different salinities on growth and survival of juvenile Pacific white shrimp, Litopenaeus vannamei (Boone, 1931).
  • Effect of dietary supplement of Spirulina sp. on growth and survival in Pacific white shrimp Litopenaeus vannamei (Boone, 1931)
  • Effects of gamma irradiation on the quality of sun-dried croaker (Johnius dussumieri).
  • Effect of stocking density on growth and survival of juvenile Pacific white shrimp, Litopenaeus vannamei (Boone, 1931).
  • Effect of Alloe vera treatment on quality parameters of Indian mackerel (Rastrelliger kanagurta, Cuvier-1816) during chill storage.

Plan Scheme: 12581

Feasibility of mass scale culture of marine red alga Kappaphycus alvarezii (Shchimitz) on the Saurashtra region, west coast of India.

  • • Study of location specific growth rate in marine macro alga Kappaphycus alverzii Experiment was conducted at three different sites, viz., Okha, Arambhada and Poshitra to check the site suitability for the growth of carrageen yielding alga, Kappaphycus alverezii; the seed material have been cultivated on partially submerged bamboo rafts. Nearly fivefold growth of Kappaphycus alverezii was achieved in 45 days at Okha centre. Under mass scale cultivation till date nearly 12 tones of fresh weight was achieved at Okha center. Sites exploration for Kappaphycus cultivation is under progress.
  • Study of seaweed diversity at selected intertidal areas of Saurashtra and Diu (UT)
  • Estimation of in vitro antioxidant potential of the seaweeds available at coast of Okha
  • Estimation of agar and alginic acid from the seaweeds available at coast of Okha
  • Heavy metal accumulation in the selected species of cephalopod, shrimp and fish of Saurashtra region. 
Kappaphycus alvarezii Raft in the sea
Fully matured seaweed Mass scale seaweed cultivation
Plan Scheme : 12901
Strengthening of extension programme in Fisheries at Okha
  • Training on “Preparation of liquid seaweed fertilizer and its uses”.
  • Training on lobster stuffing and preparation of seaweed greeting cards.
  • Demonstration of seaweed cultivation on site.
Other agency projects
(Funded By Indian National Centre for Ocean Information Services):
1. Effect of Optically Active Substances on diversity in Phytoplankton Community Structure off Gujarat


  • Long term measurements of bio-optical and physico-chemical parameters
  • To create seasonal libraries for local phytoplankton community structure
  • Understanding the impact of hydrography on ecology and distribution of Phytoplankton community structure
  • Understanding the impact of active substances, such as CDOM and TSM, on estimation of Phytoplankton concentration from satellite
  • Capacity building for ecological studies at College of Fisheries &/or Okha Research Centre (JAU), Veraval
2. Ocean state forecast validation and research (off Okha and Veraval coast of Gujarat)
  • To establish a coastal observatory-wave rider buoy to start with.(Data generated from this rider buoy will provide scientific information about oceanic forecast.)
  • To validate the sea state forecast for Rupen/Okha coasts, Gujarat.
  • To disseminate sea-state forecast to sea-farers and coastal population via various models and create awareness about the same.
  • To conduct user interaction and awareness meetings.
  • To help improve existing models and provide logistic in strengthening existing array of observations for both.
Brief Achievements:-
  • Location specific sea weather forecast generated by INCOIS started in registered mobile numbers of fishing boats operating from Okha Jakhau and Veraval by SMS.
  • Sea weather forecast generated by INCOIS through voice message started in registered mobile numbers of fishing boats operating from Okha Jakhau and Veraval by SMS. 
The marine biological specimens are displayed phylum wise in museum. The collection is one of the largest comprised of marine fauna. Many visitors, UG/PG students, extension workers and researchers from all over the India are availing the  benefits of the marine treasure.
Publications :
  1. Research Papers Published by the Faculty : 24
  2. Booklet, Pamphlet and useful Articles : 5
Transfer of Technologies / Extension Activities:
  1. Seaweed liquid fertilizer Preparation techniques.
  2. Seaweed greeting card Preparation techniques.
  3. Techniques for Stuffing of crab and Lobster.
  4. On site demonstration of Seaweed cultivation.
  • Repeated spawning in commercially important shrimp P. indicus.
  • Induced maturation and spawning of P. monodon in captivity.
  • Maintenance of marine aquarium fish Pomacantus spp. for more than 3 years in captivity.
  • Encouraging results in Agricultural crops (Groundnut) by the application of Seaweed Liquid Fertilizer.
  • Successful completion of study of Biometrics of mullet (Mugil cephalus) with a recommendation for fishermen community. Recommendation was included in Fisheries Act, 2003, Gujarat. Sea ranching of green turtle (Chelonia mydas) and Olive ridley turtle (Lepidochelys olivacea) for natural population recruitment. 600 new born babies have been sea ranched in between 1995-2000 for protecting and preserving the endangered species of sea turtles (Schedule I species).
  • Sea ranching of green turtle (Chelonia mydas) and Olive ridley turtle (Lepidochelys olivacea) for natural population recruitment. 600 new born babies have been sea ranched in between 1995-2000 for protecting and preserving the endangered species of sea turtles (Schedule I species).
  • Successful mass scale Kappaphycus cultivation at Okha; 5-7 fold growth were achieved in 45 days.
List of Recommendations / Scientific Information :
  • Hatchery entrepreneurs are recommended to use 15 ppt salinity water for larval (zoea and mysis) rearing and 20 ppt salinity water for post larval (PL1 to PL20) rearing of Penaeus monodon (2015).
Shrimp Larvae Shrimp seed
  • Fish farmers of Saurashtra are recommended to feed gray mullet Mugil cephalus fry reared in seawater with 35% protein incorporated diet in first 45 days for obtaining higher growth and survival. (2014)
  • The fish farmers of Saurashtra are recommended that the fry of cultivable mullet species M. Cephalus are available abundantly, during February at Rupen and Harshad creeks ; M. Seheli during October-November at Khatumba and M. Parsia during August-September at Rupen and Harshad Creeks. (2013)
  • Thirteen species of rotifers are found in Okhamandal region. They are found in higher diversity as well as quantity in Surajkaradi pond and Gomati creek than seacoast areas in Okhamandal region in monsoon and post monsoon seasons. Rotifers are more abundant in less salinity. (2012)
  • Finfish/crustacean hatchery entrepreneurs are recommended to use 15 to 20 ppt salinity water at 25oC to achieve higher production of rotifer, Brachionus rotundiformis in 10 days. (2011)
  • It is recommended that carrageenana yielding marine alga Kappaphycus alvarezii can be grown profitably in Okha mandal region and fivefold growth can be achieved in 45 days from January onwards. (2011).
  • Among the available red seaweed (Rhodophyceae) species of Gulf of Kutch, maximum iodine content is found in Asperogopsis entestinalis (555 mg/100 gm DW) followed by Rhodomenis australis (151 mg/100 gm DW).(for Scientific community). (2011)
  • It is recommended to salt farmers and aquaculturist of coastal Saurashtra region to use 160 ppt salinity of sea water as a rearing medium for Artemia (Artemia fransiscana) to obtain higher cysts production.(2010)
Artemia Cysts
  • It is recommended to incorporate probiotics (Lactobacillus acidophilus) @ 20% in feed during culture of shrimp for higher production (2007)
  • It is recommend that the 20% Prosopis juliflora pod powder, incorporated along with fish meal-10%, soyabean meal-40%, wheat Bran-15% and cotton seed oil cake-15% in pellated feed is better for higher production as well as survival rate in mullet fish culture. (2007)
  • It is recommended to scientific community and fishermen that gravid female (Length 375mm & above) and male (Length 341mm & above) of Mugil seheli are available in coastal sea water of Okha mandal region, during its major breeding season late August to September and minor breeding season February. In order to maintain the population of M. seheli, Fishermen of Okha Mandal region should not catch the fish during this period”. (2005)
  • Recommendation is made for the farmers to use 3.5 % of liquide seaweed fertilizer made up of Sargassum Spp” gives good yield in groundnut variety GG-2.(2005)
  • To maintain the population of Mugil cephalus in natural water, the recommendation is made for the fishermen of Saurashtra region that the mesh size of gear (gill net) should be more than 93 mm as the fish obtain first maturity when the circumference of head was 189 mm. This will provide a chance of spawning high fecundity fish at least once in its life cycle. Moreover fishermen should not catch the fish at the time of breeding season (Dec-Jan.). (2002)
Future Outlook :
  • Development of seed production of economically important marine fishes like Mugil cephalous, Lates calcarifer (sea bass), Chanos chanos (milk fish) etc.
  • Development of marine aquarium fish breeding technology.
  • Culture techniques of economically important seaweed like alginophytes, agarophytes and carrageenophytes.
  • Establishment of a centre for forecasting biomass (fish intensity) for marine fishermen in collaboration with related research institutes.
  • Mass scale cage culture of M. cephalus, Lates calcarifer, Panulinus polyphagus (Lobsters) in protected bays and lagoons.
  • Establishment of center of excellence (Advanced training center at Okha for which proposals are under preparation for submission to ICAR.
Contact :
Dr. N. H. Joshi
Asso. Professor & Head
Fisheries Research Station,
Junagadh Agricultural University,
OKHA 361 350 (Gujarat, India)
Phone/fax : 91-2892-262056
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.