Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam)
This study was carried out with an objective of improving the durability of unjams and determining the rational arrangement and optimum density of unjams . Several experiments were conducted in coastal waters of Terengganu in the South China Sea to determine a safe anchoring power of unjams an...
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| Format: | Thesis |
| Language: | English English |
| Published: |
1991
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| Online Access: | http://psasir.upm.edu.my/id/eprint/11772/ http://psasir.upm.edu.my/id/eprint/11772/1/FPSS_1991_2_A.pdf |
| _version_ | 1848841674730504192 |
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| author | Ibrahim, Sakri |
| author_facet | Ibrahim, Sakri |
| author_sort | Ibrahim, Sakri |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study was carried out with an objective of
improving the durability of unjams and determining the
rational arrangement and optimum density of unjams .
Several experiments were conducted in coastal waters of
Terengganu in the South China Sea to determine a safe
anchoring power of unjams and parameters required for the
development of mathematical models that could produce an
optimum trapping efficiency .Experiment s on anchoring power showed sandy bottom
giving the highest value of fixing coefficient ( 0. 953 ) ,
foll owed by muddy bottom ( 0. 903 ) , and sandy -mud bottom
( 0.731 ) . This value was found to be higher for two sandbags
tied one behind the other than for two sandbags tied
in one lump.The unjam's anchor was found to have a reserved fixing force of 67 . 34 kg , which is 93 . 86% in
excess of what was required to anchor a n unjam in place . |
| first_indexed | 2025-11-15T07:47:00Z |
| format | Thesis |
| id | upm-11772 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:47:00Z |
| publishDate | 1991 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-117722011-09-08T09:16:06Z http://psasir.upm.edu.my/id/eprint/11772/ Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam) Ibrahim, Sakri This study was carried out with an objective of improving the durability of unjams and determining the rational arrangement and optimum density of unjams . Several experiments were conducted in coastal waters of Terengganu in the South China Sea to determine a safe anchoring power of unjams and parameters required for the development of mathematical models that could produce an optimum trapping efficiency .Experiment s on anchoring power showed sandy bottom giving the highest value of fixing coefficient ( 0. 953 ) , foll owed by muddy bottom ( 0. 903 ) , and sandy -mud bottom ( 0.731 ) . This value was found to be higher for two sandbags tied one behind the other than for two sandbags tied in one lump.The unjam's anchor was found to have a reserved fixing force of 67 . 34 kg , which is 93 . 86% in excess of what was required to anchor a n unjam in place . 1991-07 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/11772/1/FPSS_1991_2_A.pdf Ibrahim, Sakri (1991) Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam). PhD thesis, Universiti Pertanian Malaysia. Fish habitat improvement Fish habitat improvement - Malaysia Fisheries - Malaysia - Great selectivity English |
| spellingShingle | Fish habitat improvement Fish habitat improvement - Malaysia Fisheries - Malaysia - Great selectivity Ibrahim, Sakri Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam) |
| title | Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam)
|
| title_full | Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam)
|
| title_fullStr | Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam)
|
| title_full_unstemmed | Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam)
|
| title_short | Proper Construction And Set Up Of Malaysian Fish Aggregating Devices (Unjam)
|
| title_sort | proper construction and set up of malaysian fish aggregating devices (unjam) |
| topic | Fish habitat improvement Fish habitat improvement - Malaysia Fisheries - Malaysia - Great selectivity |
| url | http://psasir.upm.edu.my/id/eprint/11772/ http://psasir.upm.edu.my/id/eprint/11772/1/FPSS_1991_2_A.pdf |