ANNEX I
Fishing Station Data: |
Demersal trawl |
(BT) |
|
Pelagic trawl |
(PT) |
|
Traps |
(OT) |
|
Longline |
(BL) |
ANNEX II
Length data in cm of selected important species (lowest, highest and mean length, and standard deviation).
ANNEX III
Settings and performance of acoustical instruments
Frequency |
38 kHz |
120 kHz |
Basic range (m) |
0-100/0-250 |
0-100 |
Bandwidth |
3.0 kHz |
3.3 kHz |
Pulse length |
0.6 msec. |
1.0 msec. |
TVG and gain |
20 logR -20 dB |
20 logR 0 dB |
Recorder gain |
7 |
4 |
Transmitter power |
External transmitter |
High |
Transducer dimension (ceramic) |
8° × 8° 30 × 30 cm |
10 circular |
Discriminator |
5-7 |
- |
Source level + voltage response |
139.2 dB |
112.2 dB |
Measured |
31 August 1982 |
31 August 1982 |
Integrator treshold |
A 0.5 |
0 |
|
B 0.5 |
0 |
Integrator gain |
A 20 dB × 10 |
10 dB × 10 |
|
B 20 dB × 10 |
10 dB × 10 |
Depth intervals (m) |
A 4-50 |
4-50 |
|
B 50-250 |
50-100 |
(Varying with depth) |
|
|
Bottom stop |
ON |
ON |
Demersal trawl: |
High opening shrimp and fish trawl with rubber bobbins.
Headline 41 m. Height during trawling approximately 6m. Mesh size in the wings
40 mm, gradually reduced to 20 mm in the codend. |
Pelagic trawl: |
Capelin (Harstad) trawl. Width about 30m. Vertical
opening about 15m. Meshsize at codend 21 mm. |
ANNEX IV
Complete hydrographical sections of Fisheries Resources Survey, Tanzania, 16 June - 8 July 1982 (in the Preliminary Cruise Report of July 1982 the oxygen distributions are not filled in).
Figure 4. Temperature, salinity, density and oxygen at hydrographic section II: Pangani - Zanzibar Island. R/V Dr. Fridtjof Nansen, 27 June 1982.
Figure 9. Temperature, salinity, density and oxygen at hydrographic section VII: Ruvuma River - North. R/V Dr. Fridtjof Nansen, 21 June 1982.