I. C.5 TUNA RESOURCES SURVEY IN INDIAN EEZ AROUND ANDAMAN AND NICOBAR ISLANDS BETWEEN LAT. 05° - 15°N
Project Coordinator
Shri Dharamvir Singh, Mechanical Marine Engineer
Project Components
- Survey of oceanic Tunas and allied resources by using regularlonglining in Andaman & Nicobar waters.
- Survey of Swordfish by using drift longline with light sticks in the A&N waters.
- Survey of Oil shark resources by using Bottom set longline gear in Andaman & Nicobar waters.
Period : April 2021 – March 2022
Project Objectives
- Estimation of abundance indices of oceanic Tunas and allied resources.
- Estimation of abundance index of Sword fish.
- Estimation of abundance index of Perches.
- Identifying spatio-temporal distribution pattern of the above resources.
- Study of biological parameters in respect of important species as per Annexure-I.
- Study of oceanographic and metrological parameters influencing Tuna and Swordfish distribution.
- Study of migration pattern of Yellow fin tuna.
- Experiment with Bottom set longline for surveying stock status of Oil shark resources in the Andaman and Nicobar waters.
- Imparting training in fishing techniques and demonstrations of modern equipment onboard to the fishermen, fishing industry representatives and entrepreneurs.
| Project Leader | Project Associates | |
|---|---|---|
| Scientist(s) | Engineer | |
|
Shri Dharamveer Singh, Mechanical Marine Engineer |
Shri. Puran Singh Sr. Scientific Assistant Shri Rahulkumar B. Tailor Sr. Scientific Assistant |
Shri Rajendra B. Dokare Service Engineer (Mech) |
Base of operation : Port Blair
Vessel : Blue Marlin
Vessel Officers
Skipper : Shri A P. Udayappan
Chief Engineer Gr. I : Vacant
Gear
- Multifilament Tuna longline with 5 hooks/basket.
- Bottom set long line with 625 hooks/set.
- Drift longline with light sticks for Sword fish.
Operational target per cruise
Days out at sea : 20
Fishing days : 16/14
Hooks per set : 625
| Project Area | Latitude | Month | No. of sets/cruise |
|---|---|---|---|
| Andaman Waters | 10° - 15°N | 02#, 07#, 09,11 | 16 |
| Nicobar waters | 05° - 10°N | 03#, 06, 08,10# | 14 |
- Regular tuna longline
- Bottom set longline
- Drift longline with light sticks
Survey area: Lat. 05°N -15°N
Collection of Environmental Data
Besides the catch data and biological data being collected in long-line survey, data on environmental parameters will be collected as follows:
- Salinity, Temperature and Depth (STD) data per day per set.
- Sea Surface Temperature (SST) data at every one hour interval from the commencement to completion of voyage.
- Data on current direction and speed, one observation every day (sets are to be made at specific depth).
- Secchi disc observation (3 readings) for every set made after setting the line.
Result Reporting: As per Annexure – II
I. D.1. EXPERIMENTAL BOTTOM SET VERTICAL LONGLINE SURVEY IN ANDAMAN AND NICOBAR ISLANDS BETWEEN LAT. 5°N - 15°N
Project Coordinator
Shri Dharamveer Singh, Mechanical Marine Engineer
Project Components
Survey of perch resources by using bottom set vertical longline in Andaman and Nicobar Islands between Lat. 05°N - 15°N
Period : May & December 2021 and January 2022
Project Objectives
- Survey of perch resources by using bottom set vertical longline in Andaman & Nicobar waters.
- Estimation of abundance indices of perch resources.
Survey and Research Team
As in project I. C. 5
Base of operation : Port Blair
Vessel : Blue Marlin
Gear
Bottom set vertical longline with 30 hooks per basket
Vessel Officers
Skipper : Shri A P. Udayappan
Chief Engineer Gr. I : Vacant
Operational target per cruise
Days out at sea : 20
Fishing days : 14/16
No. of hooks/ set : 625
| Project Area | Latitude | Month | No. of sets/cruise |
|---|---|---|---|
| Andaman Waters | 10° - 15°N | 1♣, 5♣ | 16 |
| Nicobar waters | 05° - 10°N | 12♣ | 14 |
- Regular tuna longline
- Bottom set vertical longline
- Bottom set longline
- Drift longline with light sticks
Survey area: (Lat. 05°N - 15°N)
| Description | Apr 21 | May 21 | Jun 21 | Jul 21 | Aug 21 | Sep 21 | Oct 21 | Nov 21 | Dec 21 | Jan 22 | Feb 22 | Mar 22 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry docking & Afloat repairs | ///SSS | |||||||||||
| Main Engine | td# | |||||||||||
| Aux. Engine (P) | ||||||||||||
| Aux. Engine (S) | td# | tdO | td# | td# | ||||||||
| tdGenerator (P) | td# | |||||||||||
| tdGenerator (S) | td# | |||||||||||
| Ref. Compressor No. I | td# | tdO | ||||||||||
| tdRef. Compressor No. II | td# |
///SSS - Dry-docking/Afloat repairs, # - Inspection/Minor repair, O- Overhauling,
