AI SearchAssessing the potential escapee yield and economic losses of enlarging trawl mesh size : (Record no. 8874)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04568nas a2200469 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817163453.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 220228s2019 th ar ||| 000 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12333955 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.AQ-19-02 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Weerapol Thitipongtrakul |
| 245 10 - TITLE STATEMENT | |
| Title | Assessing the potential escapee yield and economic losses of enlarging trawl mesh size : |
| Remainder of title | a case study in the inner Gulf of Thailand |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand: |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2019 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 105 p. : |
| Other physical details | ill. + |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. AQ-19-02 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Aquaculture and Aquatic Resources Management, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 2019 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The study of potential impacts of the enlarging cod-end mesh size of pair trawl fishery was conducted by simulating the assumed case scenarios through two estimation models. The first model was used to estimate the potential yield of escaped economic juveniles caused by enlarging cod-end mesh size. Five case scenarios with different escape levels of 10%, 15%, 20%, 25% and 30% were simulated. Eleven important economic species were selected as representatives for the escaped juveniles, comprised of four pelagic species, five demersal species and two cephalopod species. The second model was used to estimate the financial impact on pair trawlers if the cod-end mesh sizes were enlarged from current used to 5.0 em and 6.0 ern respectively. The estimation on the second model was based on the escape rate of previous trawl experiment study. The input fishery data were collected from pair trawl vessels operated in the Inner Gulf of Thailand area from January to December 2018. The required biological data of the selected species, market price of fish, and cost and return of pair trawl fishery were used in estimation. The simulation results demonstrated pair trawlers will occasionally lose their income if the cod-end mesh size was enlarged but it would be compensate by the catch of larger sized escaped fish in the near future. The estimated yield and value of escaped juveniles were increased accordingly as increasing of an escape level. The yield was increased differently by species, however, the overall yield of all selected species was increased. There is slightly economic impact on pair trawlers if the cod-end meshes were enlarged to the larger sizes. They would lose about 3.4% of their total income if the cod-end meshes were enlarged to 5.0 ern, and consequentially lose about 8.9% if it was enlarged to 6.0 ern. It is recommended that the government should provide partial support to trawlers, for persuade them and mitigate the occasional loss during changing period. Thus, further practical trawl experiments should be carried out to support the results of the modeling. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Marine fishes |
| Geographic subdivision | Thailand |
| -- | Gulf of Thailand |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Fishery management |
| Geographic subdivision | Thailand |
| -- | Gulf of Thailand |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Trawlers (Vessels) |
| Geographic subdivision | Thailand |
| -- | Gulf of Thailand |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bhujel, Ram C., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Datta, Avishek, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Ministry of Agriculture and Cooperatives (MOAC), Thailand, |
| Relator term | Scholarship Donor |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology Fellowship, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. AQ-19-02 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B06168">http://203.159.5.9/ait-thesis/detail.php?q=B06168</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12333955 |
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| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 220228 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | m |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
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| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 61-CD-ROM |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120892947 |
| CREATED | CREATED : 2019-11-19 |
| RECORD Id | RECORD # : i13230013 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type | Cost, normal purchase price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.AQ-19-02 | 30050120892947 | 17/08/2026 | 1 | 17/08/2026 | 40-Archives | |||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.AQ-19-02 | 17/08/2026 | 17/08/2026 | 61-CD-ROM | |||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | AIT Thesis no.AQ-19-02 | 30050211020218 | 17/08/2026 | 1 | 17/08/2026 | 20-AIT Publication | 50.00 | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 17/08/2026 | AIT Thesis no.AQ-19-02 | 30050211020200 | 17/08/2026 | 2 | 17/08/2026 | 20-AIT Publication | 50.00 |