This volume is a result
of the survey on inland fishing gear and methods, conducted
in Myanmar from September 2003 to December 2004. The survey locations
are selected from Division and Districtwhere fisheries developed as shown in Figure
1. The abbreviations
and symbols used in illustrations and the survey are in accordance with the use as the first, second,
third and forth volumes ( Thailand, Malaysia, Philippines and Vietnam). The number of surveyed fishing gear
types is shown in Table
2 . The data, which are introduced in this monograph, were based on the practical
surveys conducted by SEAFDEC and the Department of Fisheries, Inland Fishing Gear survey project
team.
|
Illustrations
|
1. Drawing of the horizontal length
of seine net and gill net depends on the length of the float
line, and vertical depth depends on the vertical hanging ratio of
netting. In the case of gill net with side line, thedepth of the side line is drawn according to their length. Some
types of fishing gear are shown by schemataor overall sketches with the dimensions indicated applicably. |
2. General outline drawings,
such as the rig of a complete gear, and detailed drawings of
components, are not to scale but the main dimension are given.
3. Dimensions are given only in meter (m) and millimeters
(mm). The units are not indicated but can easily be recognized, as follows: |
Meter
Length of float line and total length of gears etc.,
used with two decimals (e.g., 4.25, 25.30).
Millimeter Mesh size (stretched), diameters
of rope, float, etc, used without a point or with one decimals
only (e.g., 16, 135 or 12.5 ; 1.2). |
4. Mass and weight
are indicated in the units of kilogram (kg) and gram (g). Buoyancies
of floats and breaking load of netting yarns or ropes are shown by kilogram
force (kgf) or gram-force(gf).
5. Materials are indicated by abbreviations listed
in appendix 1.
6. The size of netting yarns is shown in the denier
system.
7. The mesh size, given in millimeters (mm) is
understood to be the distance between the centers of the two opposite knots in the same mesh when fully stretched.
8. The number of meshes in a straight row along
the edges indicates the width and length or depth of net panels or sections.
9. The term hanging ratio (E) designates the ratio
between the length of a given portion of the mounting rope and the length of the stretched netting hung on
this portion of the rope. |
10. Sequence in fishing
operation is shown by sketches with circled Arabic number (1,
2 …), which indicate the sequence of operation stages.
11. Parts of gear drawn in detail are indicated by circled
capital letters ( A, B …). |
Table 2.
Amount of fishing gear designs and technical papers collected
from the survey in Myanmar.
|
|
No |
Group
of fishing gear |
Amount
of designs |
|
1 |
Gill
nets |
36 |
|
2 |
Hook
and Lines |
7 |
|
3 |
Traps |
51 |
|
4 |
Surrounding
nets |
9 |
|
5 |
Falling
nets |
9 |
|
6 |
Lift
nets |
8 |
|
7 |
Push
nets |
2 |
|
8 |
Miscellaneous |
9 |
|
Appendix 1. Abbreviations and symbols used in illustrations |
| Loa Length
of over all fishing Boat |
PES Polyester |
| GT
Gross tonnage |
COT Cotton |
| Hp
Horse power |
RUB Rubber |
| BAM Bamboo |
S S
Twist |
| BR
Brass |
Z Z
Twist |
| CEM
Cement |
SST Stainless
steel |
| CLAY Baked
clay |
SW
Swivel |
| COMB Combination
rope |
WD Wood |
| Fe Iron |
Ø
Diameter |
| Fp
Foam plastic |
Upper panel |
| MONO
Monofilament' |
Lower panel |
| PA
Polyamid (Nylon) |
 Side
panel |
| Pb Lead |
 Thickness |
| PE Polyethylene |
|
| PL Plastic |
|
| PP Polypropylen |
|
|
|
|
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