Indian Council of Agricultural Research
  • Pelagic seabird flesh-footed shearwater Puffinus carneipes
  • Hydrographic sampling on board FRV Silver Pompano
  • Studies on PFZ validation
  • Mangrove nursey at Moothakunnam for restoring habitats
  • Carbondioxide Dispenser and Recorder for Climate change studies

Home Fishery Enviornment DIVISION


Thrust Areas of Research:

Environment and Fisheries, PFZ validation, Eco-biological modelling
Evaluation of ecosystem services and processes, marine litter and other anthropogenic impacts
Development of restoration protocols for mangroves, awareness campaigns
Focus on seaweeds, seagrass habitats, plankton, marine mammals, coastal and pelagic birds
Climate change –focus on carbon sequestration, Ocean acidification, society based programs


Ongoing Research Projects:

a. In -house Research Projects:

Pollution and litter in the coastal and marine ecosystem and their impact (FISHCMFRISIL201201900019)
Ecosystem process of critical marine habitats and development of protocols for restoration (FISHCMFRISIL201201800018)
Development of fishery management plans for sustaining marine fisheries of Maharashtra (FISHCMFRISIL201201000010)
Resource assessment, exploitation and utilization of marine algae from Indian Coast

b. Sponsored Projects :

Towards developing models for prediction of recruitment success in major Indian marine fish stocks
Eco-biological investigations on major pelagic fishes and eco biological modelling of the epipelagic habitat off Kerala and Lakshadweep
Strategies to enhance adaptive capacity to climate change in vulnerable regions- World Bank-GEF
State of diversity of commercially important seaweeds along the West Coast of India
Living resources of the Gulf of Mannar: Assessment of key species and habitats for enhancing awareness and for conservation policy formulation

c. Consultancy Projects :

Consensus Building and Environmental Studies on Marine Outfall for Mumbai Sewage Disposal Project (MSDP) Phase II
Baseline Marine Ecology Study and Impact Assessment of the barging operations for the proposed expansion project at TPL Trombay, Mahul Village, Mumbai
Installation of artificial reef at a selected site off Visakhapatnam, Andhra Pradesh

Completed Research Projects:

a. In-house Projects :

Impact of anthropogenic activities on coastal marine environment and fisheries (FEM/01)
Impact and yield study of environmental changes on distribution shifts in small pelagic along the Indian coast (FEM/02)
Development of fisheries ecosystem restoration plans for critical marine habitats (FEM/RE/03)

b. Sponsored Projects :

Impact, adaptation and vulnerability of Indian marine fisheries to climate change – Phase II -
Validation of PFZ advisories brought out by INCOIS among artisanal and small mechanized sector fishermen along Kerala coast to compare the advantages derived for different types of fishing operations / targeted species -
Studies on marine mammals of Indian EEZ and the contiguous seas -

c. Consultancy Projects :

Consensus Building and Environmental Studies on Marine Outfall for Mumbai Sewage Disposal Project (MSDP) Phase II
Marine EIA study for Kudankulam Nuclear Power Plant

Significant Achievements in the last 5 years



Fisheries and Environment

  • Correlations between environmental parameters and catches of oil sardine: Positive anomalies of CUS (indicating intense upwelling) were found to result in poor landing of oil sardine during 1926 - 1956 and during 1993-1998
  • Negative anomalies of CUS (indicating mild upwelling) were found to result in good landing of oil sardine during 1957-1992 and during 1999-2005.
  • mKrishi service developed for providing PFZ advisory for fishermen in mobile phones in local language
  • The analyses of PFZ advisories clearly indicates that the near shore regions of the Arabian Sea off Kerala with depths less than 50 m occurred more in the PFZ advisory maps than the mid continental shelf region and the continental slope.
  • Initiated detailed studies on Mudbanks of Kerala in collaboration with NIO. Significant observations were made on resources, pelagic birds, reptiles and plankton through targeted cruises.
  • A database was developed on Sr/Ca ratio of otolith of oil sardine and mackerel from Indian Coast for the first time in the country. Sr/Ca ratio showed significant spatial variability in the case of oil sardine and temporal variability in mackerel.


  • Continuous observation indicated that common commercial pelagic, demersal, mollusks and crustacean resources were free from mercury contamination
  • Developed time series database on heavy metals in seafood from three centres each along west and east coast of India
  • Developed data base on heavy metals (Hg, As, Cu, Zn, Pb, Cd, Ni and Mn) in sediment at selected locations of west and east coast of India
  • Developed data base on heavy metals (Hg, As) in water at selected locations of west and east coast of India
  • Marine debris / litter from different maritime states were categorized as per UNEP criteria.
  • A methodology for grading the coastal ecosystem based on the spread of litter in water, in three tier (floating, column, submerged) was developed
  • Based on the USEPA (2004) guidelines, the sea water quality index (SWQI) was worked out for selected coastal areas of different maritime states
  • Micro plastics of size less than 5mm and 5 to 10 mm were recorded in the gut of pelagics.
  • Ghost nets were observed in the coastal and oceanic waters along west coast


  • Minicoy atoll had average biomass of 500 g m-2 wet weight of underground parts (rhizomes and roots) but had only 96 g m-2 of leaves indicating the canopy loss (leaf biomass) owing to herbivory by green turtles
  • Protocol for restoration of mangroves especially Rhizophora mucronata was developed, through participatory approach as a community based programme for Central Kerala.
  • Underwater explorative survey in the Palk Bay, revealed that three types of sea grass beds (i) Coral reef associated sea grass bed as observed in Mandapam area (ii) Mangrove associated sea grass bed as in in Adirampattinam, Mallipattinam and Sethupavachatramarea and (iii) Shallow sandy bottom sea grass bed as found in Thondi, Kottaipattinam and Jegathapattinam area.


  • The stomach contents of seven species of marine mammals consisting of 11 finless porpoise, spinner dolphin, bottlenose dolphin, Indo-pacific humpbacked dolphins, Risso’s dolphin, tropical spotted dolphin and long beaked common dolphin indicated that the cetaceans feed mostly on teleosts with wide range of trophic levels.
  • Based on index that included frequency of occurrence, percentage by number and by weight, the oil sardine (Sardinella longiceps)was the most important prey in the marine mammal sample.
  • Muscle, liver and kidney samples from 33 incidentally caught and stranded marine mammals at six sampling locations showed that the trace metals’ concentrations in the samples were low compared to those from other parts of world.
  • Blubber samples from 37 individuals belonging to eight species of marine mammals were analysed for organochlorine pesticides. The concentrations of ΣHCHs (BHCs), ΣDDTs and chlordanes were generally lower than the values reported from other parts of the world.
  • Dugong scars observed in Palk Bay Sea grass beds during September 2013


  • It is estimated that the seaweed biomass along the Indian coast is capable of utilizing 9052 t CO2/d against emission of 365 t CO2 /d indicating a net carbon credit of 8687 t/d.
  • Targeted ecological observations and results of lab based experiments indicated that, if pH drops below 7.0 during the meroplanktonic phase of oyster, recruitment will be affected and therefore oyster spat densities can be used as an indicator for acidification in tropical estuaries.
  • Vulnerability index of West Bengal districts calculated.
  • SST variations and seasonal changes observed in three major lakes viz, Vembanad Lake, Chika Lake and Pulicat Lake
  • Fishermen awareness levels on climate change indicate poor knowledge on CC .
  • Surveys indicated CC impacts on coastal villages with respect to change in fishing area, sea water level and frequent extreme events.


  • Technology developed for seed production of sea cucumbers under controlled conditions
  • EIA of sea cage farming carried out
  • EIA of edible oyster farming carried out and management advisories for reducing the impact on sediment proposed
  • Farming methods for commercially important seaweeds developed.
  • Techniques for stock culture and mass culture of algal feed in hatcheries standardized.


May 2022
Back to Top