Ocean Research Ships
An Advanced Fishery Research Ship TAKAMARU
An advanced Fishery Research Ship TAKAMARU was delivered to the Ministry of Agriculture, Forestry and Fishery by the Shimonoseki Shipyard & Machinery Works of Mitsubishi Heavy Industries, Led. (MHI)in March, 1995.
Although the ship is a small-sized ship of gross tonnage 61, the ship is equipped with the same amount of fishery and acoustic equipment carried by a large-sized research ship, and can perform advanced examination and research. In particular, the influence given to the acoustic equipment is reduced as much as possible by taking sufficient measures for reduction of noise and vibration, and living environment is improved, so that research activities are improved.
Features
1. Improvement in basic performance
(1) High service speed is provided to deal with wider sea areas for experiments and for meeting a wider range of experimental needs.
(2) Consideration is given to a hull form for maximum reduction of influence of noise on the acoustic equipment installed at the bottom of the ship by suppressing the generation of air bubbles at the bow below the craft.
(3) Propeller performance that minimizes noise in water caused by hub vortex is secured by installing a corntrolable pitch propeller and PBCF.
(4) Reduction of noise and vibration that are transmitted to onboard and outboard is achieved by adopting a low-noise and low-vibration type engine and generators, and also by taking various measurement against noise and vibration.
(5) An anti-rolling system suitable to the ship's form is installed. The system accounts for the influence of rolling motion on accuracy in experiments, observation operability, and ride quality.
(6) Seaworthiness, sea kindliness and stability are improved to enable navigation even in Beaufort scale of 6 and experimental activities can be safely performed in the sea state of 5 (wind velocity of 8.0〜10.8m/s)
(7) To improve maneuverability, a bow thruster and a schilling rudder are installed.
2. Improvement in Fisheries Examination and Observation Capabilities
(1) Combination-type fisheries equipment capable of performing three fishing methods; i.e., trawl, purse seine and longline is installed.
(2) The latest equipments for experimentation, examination and research on marine life resources and oceanic environment are installed, including a quantitative echo sounder, acoustic doppler current profiler, scanning soner, etc.
(3) Experiment, observational and navigational data are automatically collected and processed by computer and integrated into the laboratory.
