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  • Fisheries  (79)
  • Humans
  • Inorganic Chemistry
  • Secretariat, Southeast Asian Fisheries Development Center
  • 1
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26271 | 2002 | 2019-02-21 02:15:25 | 26271 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: In this paper the relative concentrations and vertical distributions of primary production were investigated off Western Philippines of the South China Sea during tradewinds from April 15 to May 11, 1998. Primary productivity measurements were conducted using conventional "light-and-dark bottle" oxygen method. The net primary production estimates at ten (10) different stations established between 19° 59.2'N, 119° 58.7'E and 11° 13.5'N, 118° 03.1'E ranged from 0.10 ~ 1.53 g C m-2 d1. The result suggests that the present net production estimates in the area is remarkably higher than the estimates from other parts of the South China Sea (viz., northern coastal waters off Taiwan and southwestern parts of the SCS which included marine waters of Thailand, Indonesia and Malaysia). The highest primary production occurred at the upper 60-m well-mixed layer of station 1 in the northwestern most part of the area. Results have shown that some other hydrographic and chemical parameters (viz., temperature, salinity, light and fluorescence) greatly complicate and may not coherent with the analyses of relative distribution and abundance of primary production in the area.
    Keywords: Fisheries ; Oceanography ; Phytoplankton ; Primary production ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
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    Format: 235-250
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  • 2
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26260 | 2002 | 2019-03-01 05:49:00 | 26260 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This paper presents the tuna longline fishing operation conducted in western Philippine waters as well as the port sampling conducted in Zambales. The longline fishing operation was not successful in catching tuna but caught the deep swimming species such as sharks, lancet fish and opah. The undefined and shallow thermocline might have contributed to the unsuccessful fishing operations. Another reason might be the spatial distribution of tunas brought about by the El Niño event, which causes the spreading of the warm water mass from the western Pacific Ocean to the eastern Pacific Ocean allowing the yellowfin tunas to have a wider space to move. Yellowfin tuna stock in the western Philippine waters belongs to the juvenile and subadult population while the skipjack tunas belong to the adult population as most of the catch observed during port sampling were mature. The juvenile and sub-adult stages of yellowfin tunas were not the proper size for the longline fishery, which may explain in part why no tuna was caught during the research cruise. These sizes are available principally to the purse seine fishery as observed in the port sampling survey.
    Keywords: Fisheries ; Handlining ; Purse seining ; Catch composition ; Fishery surveys ; Experimental fishing ; Longlining ; Tuna fisheries ; South China Sea ; Philippines ; Thunnus albacares ; Euthynnus pelamis
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    Format: 65-75
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  • 3
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26360 | 23782 | 2019-04-02 03:35:39 | 26360 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Information handling ; Information services ; Information centres ; Aquatic sciences ; Fisheries ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 93-103
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  • 4
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26363 | 23782 | 2019-04-03 08:15:44 | 26363 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Fishery data ; Documents ; Libraries ; Data collections ; Information services
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 125-129
    Format: 5
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  • 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26379 | 23782 | 2019-04-05 08:42:20 | 26379 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The benthic invertebrate (zoobenthos) fauna in Vietnamese seawaters was surveyed in April - May, 1999. Zoobenthos specimen were sampled by Smith-McIntyre grab on 38 stations and 180 species were recorded and composed of 5 major groups: Polychaeta, Crustacea, Mollusca, Echinodermata and others. The total of density and biomass zoobenthos in Vietnamese seawaters was 156.7 ind/m2 and 5943.0 mg/m2 respectively. Polychaeta and Mollusca were groups with the highest abundance in every cases considered. The remaining groups of zoobenthos such as Crustacea and Echinodermata which were lower in abundance but higher in biomass. There was a remarkable variation of zoobenthos both in species composition and density with the depth, substrate and spatial distribution. Abundance was higher in some subjects considered such as: in depth of 0 - 60m or in types of sandy components or in the Tonkin gulf and the Southeast regions. All diversity indices shown that water quantity in Vietnamese sea offshore in survey time was just satisfactory and good.
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Community composition ; Species diversity ; Abundance ; Check lists ; Zoobenthos ; Viet Nam
    Repository Name: AquaDocs
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    Format: 55-76
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  • 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26373 | 23782 | 2019-04-04 03:17:24 | 26373 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This, the fourth in the series of Technical Seminars on Marine Resources Survey, continues the essential evaluation of marine resources available in the South China Sea. This latest seminar is an evaluation of the waters of Vietnam. In the series of surveys this is identified as Area IV, There are two vital results from the survey activities; the first of these is that the scope, species composition and biomass estimation of the regional waters are assessed. Secondly another aspect is emphasized, that of the element of cooperation between the nations of the region such that no one country is isolated.
    Keywords: Fisheries ; Viet Nam ; Living resources ; Marine fish ; Fishery surveys ; Check lists ; Biomass ; International cooperation
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 434
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  • 7
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26371 | 23782 | 2019-04-04 01:28:43 | 26371 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information services ; Information centres ; Information handling ; Information retrieval ; Information systems ; Documents
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 197-209
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  • 8
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26380 | 23782 | 2019-04-05 08:41:33 | 26380 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The samples of 58 stations in Vietnamese Waters were collected by M.V. SEAFDEC on 21 April - 5 June 1999. Thirty-seven groups of zooplankton were found in this study. Copepoda was the most abundance followed by Chaetognatha and Ostracoda. Biomass varied from 0.21-7.29 ml/m3 (average 1.03±1.22 ml/m3). Station 56 has the highest biomass. Abundance varied from 99-2,365 ind/m3 (average 580±527 ind/m3). Station 58 has the highest abundance due to high number of Chaetognatha, polychaete, Lucifer spp., Thecosomes and Echinodermata larvae. Whereas Station 19 has the lowest abundance. Cephalopod paralarvae were concentrated. They were classsified into 15 genera belonging to 11 families: Sepia sp., Inioteuthis sp, Loligo spp., Enoploteuthis sp., Abralia sp., Watasenia sp., Onychoteuthis sp., Ctenopteryx sicula, Nototodarus sp., Sthenoteuthis oualaniensis, Thysanoteuthis rhombus , Liocranchia sp., Teuthowenia sp., Octopus defilippi, Octopus Type A, Octopus Type B, Octopus Type C and Tremoctopus sp. Sthenoteuthis oualaniensis found to be most abundance followed by Octopus Type B and Enoploteuthis. Sthenoteuthis oualaniensis found mostly in the middle part of Vietnamese waters especially in the oceanic zone.
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Community composition ; Abundance ; Zooplankton ; Check lists ; Copepoda ; Ostracoda ; Chaetognatha ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 77-93
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  • 9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26375 | 23782 | 2019-04-04 03:33:52 | 26375 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The fisheries resources in near shore waters of Vietnam are reported to be overexploited resulting on the decrease of CPUE. It is important to develop the off-shore fisheries in Vietnam now. However information on off-shore fisheries resources in Vietnam was still very limited. This study was designed in order to supply such kind of information. The study area was in off-shore waters of Vietnam. R/V BIEN DONG (1500 Hp) with gillnet of 5 different mesh-size (73, 95, 123, 150 and 160 mm) was used for survey. The species and catch composition, distribution of promising species, relative abundance of target species were described. As a results, 98 species belonged to 32 families have been identified. Skipjack tuna was dominant (18.5 %). Distribution of relative abundance of some major species were given.
    Keywords: Fisheries ; Marine fisheries ; Catch composition ; Abundance ; Check lists ; Catch/effort ; Gillnets ; Viet Nam
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 10-28
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  • 10
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26381 | 23782 | 2019-04-05 08:37:05 | 26381 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This report is based on the data of fish eggs and larvae samples which were collected at the 58 stations of the Vietnamese waters, it covered from latitude 7° - 21° N and longitude 103° - 112° E. The cruise was carried out from April 30 to May 29, 1999 by M/V SEAFDEC. The Standard larvae net and Bongo net were used for the surface and oblique sampling respectively and 14,507 fish eggs and 18,919 fish larvae were caught. The specimens have been identified, which comprise of 78 families, 94 genera, 94 species of fish eggs and larvae observed from this cruise. The most abundant fish eggs and larvae during the survey were Engraulidae, accounted for 8.5% total of eggs and 23.8% total of larvae. The species composition was observed to be very abundant. In each station, at least 6 families and the highest 30 families were collected during the survey. The abundance of ichthyoplankton is rather relatively high, the distribution occurred mainly in the areas of along the coastal, near estuaries and around the islands. The abundance of fish eggs concentrated higher than fish larvae. The density of distribution of fish eggs and larvae in the North Sea waters concentrated the most abundant of all and of the Central sea waters was the least abundant of all. Some of families of which fish eggs and larvae have dominated were presented.
    Keywords: Biology ; Fisheries ; Oceanography ; Dominant species ; Geographical distribution ; Ichthyoplankton ; Fish eggs ; Abundance ; Check lists ; Ichthyoplankton surveys ; Fish larvae ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
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    Format: 94-145
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  • 11
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26891 | 23782 | 2019-11-12 08:30:17 | 26891 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Following a brief account of the structure of the fishery sector in Bangladesh, an outline is given of fishery policy towards 2010. Before 1980, there was no statistical system for fisheries in Bangladesh. In the present system, fishery statistics are collected according to the survey manual. Catch assessment surveys for each of the 3 sectors (open-water, closed-water and marine) are undertaken; each of the surveys is designed as a sample of 1, 2, and 3 stage sampling for estimating total catches on the basis of data of sample units, which are collected by the Fishery Survey Officers. Details are given of proposals to improve the national fisheries statistics system.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Inland fisheries ; Fish catch statistics ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
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    Format: 15-26
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  • 12
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26889 | 23782 | 2019-11-14 01:12:44 | 26889 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This volume provides the papers presented at the Workshop, which was conducted to assess the fishery and aquaculture statistics in the Southeast Asian region with a view to recommending ways and means to improve their compilation and dissemination. Abstracts of the papers are cited individually in this issue of ASFA.
    Keywords: Fisheries ; Data processing ; Fishery statistics ; Conferences ; Aquaculture statistics ; Fishery development ; Data acquisition ; Marine
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    Type: book
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    Format: application/pdf
    Format: 332
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  • 13
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26895 | 23782 | 2019-11-12 08:21:30 | 26895 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Republic of Korea has a well-organized data collection system of fishery statistics for the purpose of providing information for the establishment of the national fishery policy. Details are given of the National Fishery Statistical Survey (conducted once a year), the Scientific Fishery Statistical Survey (conducted by the National Fisheries Research and Development Institute), and Fishery Censuses (conducted whenever required).
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Fishery surveys ; Inland fisheries ; Data acquisition ; Marine ; Brackish ; Freshwater
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    Format: 68-74
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  • 14
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26256 | 2002 | 2019-03-01 06:05:12 | 26256 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: This paper presents the preliminary result of the exploratory fishing for oceanic squid by automatic jigging method in the South China Sea Area III: western Philippines. This was part of SEAFDEC’s collaborative research survey on the fisheries resources of Area III with focus on tuna, oceanic squid and other migratory species. The research vessel M/V SEAFDEC covered 31 predetermined stations for oceanographic and fisheries survey, 10 of which were squid jigging stations. Jigging effort of four automatic jiggers at each station varied from 2-8 hours. The Indo-Pacific squid, Sthenoteuthis (Symplectoteuthis) oualaniensis (Lesson, 1830) was the only species caught throughout the fishing area. The total catch for 51.6 fishing hours consisted of 2538 individuals weighing 393.1 kg. The female-dominated catch had individuals with mantle length ranging from 9.8-24 cm and average weight of 155g. Catch-per-unit-effort (CPUE) of automatic jiggers averaged 6 ind/line/hour (968 g/l/h) or 0.4 ind/jig/h (45 g/j/h). High concentration of squid was observed at the northern portion of the survey area. Catch rates were high within 0-100 m jigging depth. S. oualaniensis in Area III occurred in two forms: the dwarf, early-maturing form without dorsal photophore (9.8-12 cm mantle length;43 g average weight) and the middle-sized form with dorsal photophore (12-24 cm ML;174 g average weight). The middle-sized form dominated the catch representing 86% of the total catch. The dwarf form was less abundant in all catches but occurred throughout the area. The middle-sized and dwarf forms had total weight of 377.5 kg (2175 individuals) and 15.6 kg (363 individuals), respectively. The females were dominant in both forms. The biomass of S. oualaniensis standing stock in the SCS Area III was estimated at 283 thousand metric tons.
    Keywords: Fisheries ; Exploratory fishing ; Jigging ; Fishery surveys ; Cephalopod fisheries ; Stock assessment ; Catch/effort ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
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  • 15
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26267 | 2002 | 2019-02-22 07:07:16 | 26267 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Zooplankton samples from 31 stations in the western Philippines water were collected by M.V. SEAFDEC on 7 April - 19 May 1998. Six major groups were identified: Euphausiacea, Natantia (Penaeidea and Caridea), Reptantia, Brachyura, Stomatopoda and cephalopod paralarvae. Three genera of Euphausiacea were found, they belong to one family: this group formed 25.1% - 90.9% of total taxonomic groups at different stations. The superfamiiy Penaeidea consisted of seven genera belong to four families. Caridea larvae were composed of 11 families including 19 genera. Retantia consisted of three infraorder: Stenopodidea, Thalassinidea and Parinuridea. The infraorder Parinuridea comprised two families: Palinulidae and Scyllaridae. Fourteen families of Brachyura larvae occurred in the study area. Stomatopoda was composed of three families including three genera. Cephalopoda paralarvae were presented in the plankton samples by six families representing eight genera. The maximum counts for malacostraca larvae and cephalopod paralarvae was observed at station 16. The present study reveals that some economic species such as Penaeus spp., Parapenaeus spp., Panulirus spp., Scyllarus spp., Portunus spp. and Sthenoteuthis oualaniensis were important components of the zooplankton assemblages in the western Philippines.
    Keywords: Fisheries ; Oceanography ; Plankton surveys ; Zooplankton ; Molluscan larvae ; Biological sampling ; Crustacean larvae ; South China Sea ; Philippines ; Malacostraca ; Cephalopoda
    Repository Name: AquaDocs
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    Format: 177-196
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  • 16
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26266 | 2002 | 2019-02-22 07:10:51 | 26266 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A survey on the zooplankton in the waters of western Philippines was carried out from April 18 to May 9, 1998. The estimate of zooplankton biomass ranged from 0.92 mg/m3 to 20.85 mg/m3 with a mean of 5.70 mg/m3. Maximum and minimum densities of zooplankton recorded were 4683/m3 in station 16 and 446/m3 in station 5, respectively. The zooplankton communities were comprised of 37 different categories of animal groups. Copepods were the most dominant group in zooplankton communities at all stations but their abundance varied from 5% to 43% of the total zooplankton.
    Keywords: Fisheries ; Oceanography ; Plankton surveys ; Zooplankton ; Population density ; Biomass ; South China Sea ; Philippines ; Copepoda
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    Format: 164-176
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  • 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26257 | 2002 | 2019-03-01 06:03:04 | 26257 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The diamondback squid (Tysanoteuthis rhombus) is a potential resource popularized mainly for the export market in the Central Philippines and the positive results from other experimental activities. Exploratory fishing for the species using the giant squid jig was conducted on board MV SEAFDEC and MV Maya-Maya in the South China Sea (Western Philippines) to determine its occurrence, abundance and distribution in these areas. The gear employed is basically used in small boats hence, its operation on bigger vessels was very difficult. The result was discouraging with only one diamondback squid caught out of the 175 jigs set. The description and fishing operations of the gear are presented with comparison from other research and fishing results conducted in Camotes Sea, Calauag Bay, and Ormoc Bay which are considered potential areas.
    Keywords: Fisheries ; Biological surveys ; Exploratory fishing ; Jigging ; Gear research ; Fishery surveys ; Cephalopod fisheries ; South China Sea ; Philippines ; Tysanoteuthis rhombus
    Repository Name: AquaDocs
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    Format: 32-38
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  • 18
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26255 | 2002 | 2019-03-01 06:28:01 | 26255 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Many schools of small bonito were observed at latitude 18°-19° N, longitude 118°-119° E, school of pompano dolphinfish Corphaena equiselis (Linnaeus, 1758) was also found and sampling during lured by light at night. Surface schooling of yellowfin tuna Thunnus albacares Bonnaterre, 1788) skipjack, Katsuwonus pelamis (Linnaeus, 1758) were found at latitude 14°-15° N and longitude 117°-118° E. Many fish schools were observed through acoustic equipment, Furuno FQ-70 at near shore of Zambales and off shore at latitude 13°-14° N, longitude 117°-118° E, in the deep layer of 100-250 meters depth. Oceanic squid has widely distribution over the area. Fishing activities are target on those resources. Tuna longline fishing operation was observed at latitude 16°-17° N and longitude 116°-117°E about 150 nautical miles away from shore. Payaws were set along the coastal line from northern Luzon until northern of Palawan and from near shore until 30-80 nautical miles away from coastline. Payaw in the central part were aimed for purse seine operation while the northern Payaw aimed to handline fishing. Handline fishing occupied all most near shore area from northern to the south. Squid fishing was observed many near San Fernando.
    Keywords: Fisheries ; Marine fisheries ; Purse seining ; Pelagic fisheries ; Schooling behaviour ; Tuna fisheries ; South China Sea ; Philippines ; Coryphaena equisetis ; Thunnus albacares ; Euthynnus pelamis
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  • 19
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26264 | 2002 | 2019-03-01 05:25:20 | 26264 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Several species of oceanic squids are believed to occur in the South China Sea, especially off the west coast of the Philippines. Sthenoteuthis oualaniensis was one of the species that dominated the catch during the research survey off western Philippines in April to May 1998. Preliminary study was carried out on some biological features of Sthenoteuthis oualaniensis, particularly on maturity pattern, sex ratio and stomach content. There was a similarity in maturity pattern throughout the study areas with the same proportion of mature and immature squids. In all stations, the female squids outnumbered the male and the size of the female was general bigger than the male squids. ML50% of female was estimated to be at 175 mm while range of mature female was between 110 - 240 mm. Fish and cephalopods were the most frequently occurring prey taxa found in the diet of Sthenoteuthis oualaniensis, contributing between 37% - 46% and 30% - 43% respectively. Identification of prey taxa especially to species level was strictly limited, due to lack of proper references and understanding of the nature of fish species composition within the study areas. Results discussed in this paper may serve as early information for future biological study on S. oualaniensis.
    Keywords: Biology ; Fisheries ; Sex ratio ; Sexual maturity ; Cephalopod fisheries ; Population structure ; Fishery biology ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
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    Format: 135-147
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  • 20
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26265 | 2002 | 2019-02-22 07:16:03 | 26265 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Composition, abundance and distribution of ichthyoplankton were investigated in the South China Sea, western Philippines. Larval fish samples were collected at 31 stations by surface and double oblique tows in April/May 1998. A total of 7371.67 fish larvae, representing 85 families, were collected in the samples. Abundance of fish larvae were dominated by the Myctophidae followed by the Gonostomatidae. The ten most abundant families of fish larvae found in this study were separated into three broad categories: (1) inshore fishes, represented mainly by the Bregmacerotidae, Gobiidae, Apogonidae, and Carangidae;(2) mid zone fishes represented mainly by the Hemiramphidae, Labridae and Engraulidae;(3) offshore fishes represented mainly by the Myctophidae and Gonostomatidae. Depth and time of day appeared to affect the abundance of fish larvae and fish eggs. Fish larvae were found mainly in double oblique tows while fish eggs were found mostly in surface tows. The larvae caught at night were more abundant than larvae caught during the day. Abundance and distribution of tuna larvae are also discussed.
    Keywords: Fisheries ; Oceanography ; Ichthyoplankton ; Abundance ; Fish larvae ; South China Sea ; Philippines ; Gonostomatidae ; Myctophidae
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    Format: 148-163
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  • 21
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26277 | 2002 | 2019-02-21 01:13:46 | 26277 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Details are given of the activities and findings of a cruise conducted by the MV SEAFDEC in western Philippine waters in order to survey the fishery resources in the area. Three major activities were conducted: an acoustic survey; an oceanographic survey; and, fish sampling. These activities were aimed to support data, information and also to provide specimens for 23 research projects in the collaborative research programme for the South China Sea, area III.
    Keywords: Fisheries ; Marine fisheries ; Fishery surveys ; Echo surveys ; Fishery resources ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 325-329
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26377 | 23782 | 2019-04-05 03:46:21 | 26377 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Work was undertaken on fish taxonomy of marine fish found in Vietnamese waters in order to revise the “Field guide to important commercial marine fishes of the South China Sea”. Two field surveys were carried out at 9 separate locations from April 23 to May 17, and 2 other locations from September 20-26, 1999. A total of 442 specimens of fish from 107 different families were collected and photographed. Among the 442 specimens, 336 specimens were successfully identified to the species level, 99 specimens to the genus level, and only 7 specimens to the family level. The sampling areas at Qui Nhon, Nha Trang and Phan Thiet provided the most number of samples of 96, 94 and 79 fish, respectively. A total of 348 fish were new candidates for the Field Guide. More field surveys are necessary to cover the rather extensive array of new fish specimens expected to be found in these waters.
    Keywords: Fisheries ; Marine fish ; Catch composition ; Ecological associations ; Check lists ; Taxonomy ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 41-54
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26374 | 23782 | 2019-04-04 03:30:40 | 26374 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A collaborative acoustic survey between the Research Institute of Marine Products (RIMP), Vietnam and the Marine Fishery Resources Development and Management Department (MFRDMD) of SEAFDEC, was carried out in Vietnam waters from April, 29 to May, 29 1999. Survey was conducted by using the scientific echo sounder, FQ70 installed on board of MV SEAFDEC. Survey transects were designed perpendicular to the coastline with standard length of 60 nautical miles. The vessel was cruised at 10 knot and stopped at each station for oceanographical sampling. During cruising, the back scattering strength, SV were collected and saved in multiple storage media. SV values were verified during data analyses by removing any noise and scattering layers. The back scattering values by area (SA) is calculated and the fish density by transects are produced. Using those parameters, the biomass of pelagic is estimated based on representative species from the sampling program and national fisheries statistics. Pelagic biomass in Vietnamese waters was estimated at 9.26 x 106 tonnes with the average density of 15.93 tonnes/km2. This estimation is based on dominance species of Decapterus maruadsi.
    Keywords: Fisheries ; Backscatter ; Pelagic fisheries ; Stock assessment ; Echo surveys ; Viet Nam ; South China Sea
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    Format: application/pdf
    Format: application/pdf
    Format: 1-9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26787 | 23782 | 2019-10-01 03:09:12 | 26787 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Check lists ; Habitat ; Geographical distribution ; Fishery economics ; Trade ; Resource management ; Resource conservation ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 30-40
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26788 | 23782 | 2019-10-01 03:04:43 | 26788 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Biology ; Geographical distribution ; Fish utilization ; Trade ; Fishery economics ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 41-62
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26789 | 23782 | 2019-10-01 03:01:23 | 26789 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Biology ; Fish utilization ; Fishery economics ; Trade ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 68-94
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26786 | 23782 | 2019-10-01 03:12:53 | 26786 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Fishery economics ; Trade ; Myanmar
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 63-67
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26262 | 2002 | 2019-03-01 05:39:50 | 26262 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: In an attempt to come up with initial jigging fishery on oceanic squid in the Southeast Asian Region SEAFDEC conducted a comparative study on the squid in the Philippines Exclusive Economic Zone off the coast of Western Philippines from 17 April to 9 May 1998. The survey objectives are to determine the distribution and abundance of the oceanic squid in relation to oceanographic conditions and to examine the feasibility of harvesting squid with jig gear. Results from 11 sampling stations show that only one species of the purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1930) were caught by automatic squid jigging gear. The distribution and abundance of the purpleback flying squid in term of the catch-per-unit effort (CPUE, number of squid per line hour) are presented. Over the entire survey area, the CPUE of the squid averaged 5.7 squids/line hour. Drop-off rates for jigs fished on the jigging machines ranged from 0 to 0.33 squid/line hour. Angling depth where the squid were abundant ranged from 50 m to 100 m. The squid had a mean overall mantle length of 147 mm and an average weight of 0.17 kg. A total of 2,592 squid were measured and mantle length ranged from 90 to 250 mm. Female dominated the catch, accounting for 1,380 squid or 81% of the 1,701 squid sexed. Males were generally smaller than females. The mantle length composition for males was single peak mode at between 120 and 130 mm. Females also had one peak between 140 and 150 mm mantle length. A similar length-weight relationship coefficients between male and female was found. The squid were found in a warm water mass where the sea temperature ranged from 14°C to 31°C at the depth from 150m up to sea surface at night. Good fishing grounds of the squid were at 18°N latitude (18.5 squids/line hour) and at 19°N latitude (11.6 squids/line hour) off the San Fernando and Currimao coasts, respectively where the upwelling occurred. Dissolved oxygen where squid abundant was ranged from 3.27 to 4.4 ml/l. Downwelling was found at 16°N along the 118°E where less potential of the squid, the water transparency depth in this area was deep of about 44 m. A period of 6 days before and after full moon day was good fishing day, while the percent illumination of the moon was less than 30%.
    Keywords: Fisheries ; Jigging ; Cephalopod fisheries ; Population structure ; Fishery oceanography ; Environmental conditions ; Fishery biology ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 101-117
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26275 | 2002 | 2019-02-21 01:16:31 | 26275 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The findings are presented of observations made during the SEAFDEC cruise conducted in western Philippines waters during the period mid April-mid May 1998 regarding the geostrophic and tidal currents. The dynamic high and low in the study area were owed to the relative vertical movement of water. The high area reflected a downward movement or downwelling in which as far as fisheries is concerned, is less potential for fisheries. The low dynamic surface due to cyclonic eddy caused by wind turbulence near the head of Luzon Island indicated a potential fishing ground for this season. Wind-dominated circulation with some orographic effects suggested that potential fishing grounds might be located for each season from wind data from coastal as well as ship stations.
    Keywords: Fisheries ; Oceanography ; Geostrophic flow ; Fishing grounds ; Fishery oceanography ; Current observations ; Tidal currents ; South China Sea ; Philippines
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    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 308-315
    Format: 8
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26278 | 2002 | 2019-03-01 06:39:00 | 26278 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Seminar presents an analysis of the results of the fisheries and oceanographic survey covering the waters of western Philippines, Area III, conducted during the period April-May 1998 by the M.V. SEAFDEC. A total of 23 papers are included in the following 4 sections: 1) Fisheries resources; 2) Fishery biology; 3) Primary production; and, 4) Fishery oceanography and marine pollution.
    Keywords: Fisheries ; Oceanography ; Pollution ; Marine fisheries ; Conferences ; Fishery surveys ; Fishery oceanography ; Fishery biology ; Fishery resources ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 336
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26372 | 23782 | 2019-04-04 01:40:04 | 26372 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Information services ; Data collections ; Information centres ; Fishery data
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 211-217
    Format: 7
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  • 32
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26356 | 23782 | 2019-04-02 02:54:20 | 26356 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Aquaculture ; Fisheries ; Information Management ; Information systems ; Fishery data ; Data processing ; Fisheries ; Aquaculture ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 65-70
    Format: 6
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  • 33
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26362 | 23782 | 2019-04-02 05:27:50 | 26362 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information handling ; Information services ; Information systems ; Fishery data ; Documents ; Libraries ; Thailand
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 113-123
    Format: 11
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  • 34
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26365 | 23782 | 2019-04-02 05:52:52 | 26365 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Artisanal fishing ; Information services ; Fishery data ; Libraries ; Documentation ; Documents
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 145-151
    Format: 7
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  • 35
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26376 | 23782 | 2019-04-05 03:42:53 | 26376 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The survey was designed to be carried out only in the central part of the whole area which was considered as deep sea or oceanic zone. Depth of water is mostly more than 1,000 m deep. The exploration area was covered from latitude 7°-30.0’ N to latitude 16°-00.0’ N and longitude 110°-00.0’ E to longitude 112°-30.1’ E covering around 72,000 square miles. Surface temperature varied from 27.4° C to 30.1° C, shallow thermocline layer is still the characteristic of South China Sea fishing ground. It was detached from 15-50 meters depth then water temperature decreased gradually until at the depth of 130-200 m with water temperature around 15.3° C. Three tuna were caught during the survey of M.V. SEAFDEC and many were caught on local fishing boat by both type of fishing gear tuna longline and drift gill net. They are mostly skipjack tuna Katsuwanus pelamis (Linnaeus, 1758) and yellowfin tuna Thunnus albacares (Bonnaterre, 1788) others catch were dolphinfish Coryphaena hippurus (Linnaeus 1758), wahoo Acanthocybium solandri (Cuvier, 1831), shortfin mako shark Isurus oxyrinchus (Rafinesque, 1809), Bigeye thresher shark Alopias superciliosus (Lowe, 1839), swordfish Xiphias gladius (Linnaeus, 1758), Bigtooth pomfret Brama orcini (Cuvier, 1831) and the most abundance was lancetfish Alepissaurus borealis (Gill, 1874). Tuna resource was found more abundance in the middle part of the survey area than the upper and lower. Their swimming layer was around 50 m to 90 m depth.
    Keywords: Fisheries ; Vertical distribution ; Catch composition ; Pelagic fisheries ; Fishery surveys ; Stock assessment ; Longlining ; Fishing grounds ; Thermocline ; Tuna fisheries ; Fishery resources ; Alopias superciliosus ; Coryphaena hippurus ; Xiphias gladius ; Thunnus albacares ; Acanthocybium solandri ; Isurus oxyrinchus ; Euthynnus pelamis ; Brama orcini ; Alepisaurus ferox ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 29-40
    Format: 12
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  • 36
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26382 | 23782 | 2019-04-05 06:49:51 | 26382 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Tuna and tuna-like species are recognized as the most promising target species in off-shore waters of Vietnam. The first studies on biology of tuna were conducted in 1960. To ensure the sustainable exploitation of tuna resources in off-shore waters, studies on biology of tuna are being carried out by the Research Institute of Marine Products. Materials on biology of tuna were collected on board of research and commercial vessels. Fishing gears were drift gillnets with different mesh-size and longline. The results of study showed that tuna and tuna-like species are distributed widely in both neritic and oceanic waters of Vietnam. The percentage of Skipjack tuna caught by gillnet in total catch was highest (25.3 %) then followed by Frigate mackerel (8.9) and Bullet tuna (3.4). Yellowfin and Bigeye tunas were dominant in catch by longline. Biological characteristics of four species of tuna like length frequency distribution, reproduction, feeding, growth and recruitment, mortality rate were described. The author proposed that the further studies on tuna would be conducted in collaboration among countries bordering the South China Sea.
    Keywords: Biology ; Fisheries ; Length-weight relationships ; Feeding ; Growth ; Potential resources ; Recruitment ; Reproduction ; Fishery development ; Tuna fisheries ; Scombroidei ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 146-168
    Format: 23
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  • 37
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26254 | 2002 | 2019-03-01 06:36:07 | 26254 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: An acoustic resource survey off western Philippines waters from April 18 to May 07, 1998 was conducted by MFRDMD in collaboration with BFAR by using M/V SEAFDEC. A scientific echosounder FQ-70 developed by the Furuno Electric Co. of Japan was used to collect the SV data along the transects of 60 nautical miles apart. The raw data of backscattering strength (SV) collected from the 200 kHz transducer were carefully corrected and filtered to eliminate the influence of noises such as planktons. The corrected SV values were used to estimate the biomass of multi-species pelagic fish. Decapterus macrosoma was selected as representative species based on catch composition caught by M/V MAYA-MAYA during fishing operations. From the catch, the standard length (SL) and average weight of Decapterus macrosoma were obtained. Then the target strength (TS) of the representative species was calculated using formula, TS=20log (SL) - 66. The distribution of the SV values showed geographical difference. SV values were higher in the northern area and the southern waters of Manila. TS was estimated at -45.8 dB with the standard length of 10.2 cm. The estimated density and biomass of multispecies pelagics along the coastal waters were 18.9 tonnes/km2 and 1.672 million tonnes respectively. Meanwhile the total area and depth layer used were 88,362 km2 and 190 m respectively.
    Keywords: Fisheries ; Marine fisheries ; Stock assessment ; Echo surveys ; Multispecies fisheries ; Target strength ; South China Sea ; Philippines ; Decapterus macrosoma
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26263 | 2002 | 2019-03-01 06:30:16 | 26263 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Studies on age and growth using statolith of oceanic squids, Sthenoteuthis oualaniensis collected from Western Philippines, South China Sea, Area III have been conducted from 7 April - 19 May, 1998 by MV SEAFDEC Cruise No. 50-4/1998. A total of 1,707 squids were sampled and measured onboard. 74 statoliths which consist of 53 statoliths from female specimens and 21 from male specimens were extracted and processed using statolith ageing techniques with the body mantle length range from 107 - 217 mm and 115 - 167 mm, respectively. The male is small than the female where the male does not exceed 180 mm and the female can grow up to 260 mm. There is slightly a different dimension of growth at the statolith microstructure between the male and female specimens. In the ground statolith, growth increments were examined and grouped into four growth zones distinguished mainly by the width of the increments. It was found that the male exhibit slower growth and maturation occur at the same time with the female but at smaller size. The age of the male and female ranged from 135 - 259 days and 95 - 275 days, respectively. The life span of the species was considered within one year. It was also observed that the putative microcohort of the female could be explained from the length frequency distribution of the immature and mature female and a pool data of length frequency distribution from all stations.
    Keywords: Biology ; Fisheries ; Growth ; Age ; Cephalopod fisheries ; Population structure ; Balance organs ; Fishery biology ; Size distribution ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis
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    Format: application/pdf
    Format: application/pdf
    Format: 118-134
    Format: 17
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26384 | 23782 | 2019-04-05 06:59:58 | 26384 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Results from 10 sampling stations show that only one species of the purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1930) were caught by automatic squid jigging gear. The distribution and abundance of the purpleback flying squid in term of the CPUE (number of squid per line hour) are presented. Over the entire survey area, the CPUEs of the squid were ranged between 0.25-9.11squids per line hour. Drop-off rates for jigs fished on the jigging machines were averaged 3 squid/line hour. Angling depth where the squid were abundant ranged between 50 and 100m. A total of 1,439 squids were measured and mantle length ranged from 90 to 240 mm. Female dominated the catch, accounting for 80% of the all squid sexed. Males were generally smaller than females. The mantle length composition for males was single peak mode at between 120 and 130 mm. Females also had one peak between 120 and 130 mm mantle length with means of 150.5 mm. A similar length-weight relationship coefficient between male and female was found. The main preys of the squid were crustaceans, fishes (mainly flying fish) and squid. The squid were found in a warm water mass where the sea temperature ranged from 18°c to 30°c at the depth from 125m up to sea surface at night. Good fishing ground of the squid was at 14°N latitude and 112°E longitude (9.11 squids/line hour) nearby the existing upwelling at 111°E longitude.
    Keywords: Fisheries ; Length-weight relationships ; Marine fisheries ; Feeding ; Geographical distribution ; Potential resources ; Sex ratio ; Salinity profiles ; Marine molluscs ; Catch-effort ; Temperature profiles ; Sthenoteuthis oualaniensis ; Ommastrephidae ; Cephalopoda ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 181-197
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26366 | 23782 | 2019-04-02 05:42:55 | 26366 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Fishery data ; Data collections ; Documents ; Information systems ; Information handling ; Information services
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 139-144
    Format: 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26364 | 23782 | 2019-04-03 08:23:28 | 26364 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Information systems ; Data collections ; Information retrieval ; Information services ; Fishery data
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 131-137
    Format: 7
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26355 | 23782 | 2019-04-04 00:45:48 | 26355 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Information Management ; Fishery data ; Information systems ; Information services ; Libraries ; Documents ; Data collections ; Curricula ; Indonesia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 55-64
    Format: 10
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26785 | 23782 | 2019-10-01 03:15:57 | 26785 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Biology ; Fishery economics ; Trade ; Brunei Darussalam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 21-25
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26784 | 23782 | 2019-10-01 03:20:23 | 26784 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Habitat ; Catch composition ; Fishery economics ; Resource management ; Resource conservation ; Cambodia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 26-29
    Format: 4
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26790 | 23782 | 2019-10-01 02:55:11 | 26790 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Taxonomy ; Biology ; Habitat ; Geographical distribution ; Fish utilization ; Trade ; Thailand
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 95-112
    Format: 18
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26791 | 23782 | 2019-10-01 02:47:08 | 26791 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Keywords: Fisheries ; Echinoderm fisheries ; Biology ; Habitat ; Geographical distribution ; Fish utilization ; Trade ; Vietnam
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 113-126
    Format: 14
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26894 | 23782 | 2019-11-12 08:24:02 | 26894 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Korean fisheries is highlighted by a rapid increase in annual total production until 1990, but the trend has nearly leveled off in recent years. The total catch from coastal and offshore fishery maintained an increasing trend; while production from aquaculture has gradually increased, the inland water fishery has decreased, starting in 1980. The total population engaged in the fishery industry sector has decreased continuously every year. The production of fishery products in recent years has remained at a constant level. The total amount of import of fish and fishery products increased sharply in recent years while the exports did not vary. The Korean fishery industry has been facing serious difficulty not only due to the decrease of coastal and offshore fishery resources, but also the withdrawal of deep-sea fishing vessels from the coastal country's jurisdiction areas following the extension of 200 nautical miles EEZ. Some suggestions are given to overcome the present and future anticipated difficulties.
    Keywords: Fisheries ; Marine fisheries ; Industrial products statistics ; Fishery statistics ; Fishery management ; Inland fisheries ; Fishery development ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 54-67
    Format: 14
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26893 | 23782 | 2019-11-12 08:25:48 | 26893 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: An outline is given of the Japanese survey system of fishery statistics, which is classified into 4 groups: production structure; fishery production; fishery economy; and, marketing of fishery products.
    Keywords: Fisheries ; Fishery economics ; Marine fisheries ; Fishery statistics ; Fishery surveys ; Inland fisheries ; Marketing ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 49-53
    Format: 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26892 | 23782 | 2019-11-12 08:28:10 | 26892 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The vast area comprising the Indonesian archipelago means that the utilization of fishery resources has varied ways of implementation. Therefore, data collection for fishery statistical purposes has been designed considering these complex situations. An account is given of general trends in the Indonesian fishery sector, outlining the fishery policy towards 2010. The status of the national fishery statistical systems is described. For statistical purposes in Indonesia, fisheries are classified into the following sectors and sub-sectors: 1) Marine fishery -- capture/fishing, culture; and, 2) Inland fishery -- capture/fishing in open waters, culture in inland waters, brackishwater culture, freshwater pond culture, cage and pen culture, paddy-cum-fish culture. An examination is made of the problems and constraints in collecting fishery statistics, considering the 2 categories: technical or statistical; and, operational. Proposals are made for the improvement of national fishery statistical systems.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Aquaculture development ; Inland fisheries ; Aquaculture statistics ; Pond culture ; Cage culture ; Marine aquaculture ; Freshwater aquaculture ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 27-48
    Format: 22
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26896 | 23782 | 2019-11-12 07:34:53 | 26896 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Details are given of the current status of fishery and aquaculture statistics in Malaysia, covering the data collection system for the estimation of the annual fishery production for the country. The Department of Fisheries, Ministry of Agriculture is the main organization responsible for the collection, compilation, processing and reporting the fishery statistics. However, trade data on fish and fishery products are collated and reported by the Department of Statistics of Malaysia. The fishery statistics collected and collated comprise the following major aspects: marine capture fisheries; aquaculture; inland water bodies; fisheries trade data. An outline is also provided of the current and future economic aspects of the fishery sector in Malaysia, and its contribution to economic development. Fish production, fish for food and non-food use, total fish trade, fishery policy towards 2010, future demand and strategy for development are covered.
    Keywords: Fisheries ; Fishery economics ; Marine fisheries ; Industrial products statistics ; Fishery statistics ; Inland fisheries ; Aquaculture statistics ; Marine aquaculture ; Freshwater aquaculture ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 75-94
    Format: 20
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26898 | 23782 | 2019-11-12 06:32:17 | 26898 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Following a brief account of the general trends currently observed in the fishery sector of the Philippines, a discussion is presented on the status of the National Fishery Statistical System. Fishery policy towards 2010 is also examined. It is concluded that fishery statistics in the Philippines are important due to the sector's sizable contribution to the national economy. Substantial funding support has been given to the Bureau of Agriculture Statistics to improve the methods of data generation, sampling designs and estimation procedures. The dissemination of fishery statistics has been enhanced with the creation of the Philippine Fisheries Information System at the Bureau of Fisheries and Aquatic Resources and the EASIBOARD of the Philippine Statistical Association. These systems will hopefully improve and accelerate data retrieval and information exchange among various fishery institutions and agencies.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Inland fisheries ; Data acquisition ; Information systems ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 101-113
    Format: 13
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26897 | 23782 | 2019-11-12 07:32:08 | 26897 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The Myanmar Department of Fisheries, under the Ministry of Livestock Breeding and Fisheries, is responsible for the management of fisheries, conservation of resources, providing extension services, conducting research, and compilation of the national statistics in fisheries. Following a brief account of the types of fisheries in Myanmar, both marine and freshwater, an examination is made of fish production, licensed offshore fisheries (1996-1997), licensed inshore (1996-1997), export data, TCP/MYA/4553 Project and project activities (November 1995 to August 1997). The fishery sector is considerably important in the economy of the country, as fish constitutes a major source of animal protein in the diet of the people and is the 5th largest source of foreign exchange earnings. Fishery statistics are important in fishery management, and therefore the formulation and strengthening of fishery statistics survey is very useful for the fishery management of Myanmar.
    Keywords: Fisheries ; Marine fisheries ; Industrial products statistics ; Fishery statistics ; Fishery management ; Inland fisheries ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 95-100
    Format: 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26901 | 23782 | 2019-11-12 06:25:48 | 26901 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Following an account of the current general trends in the Thai fishery sector, details are given of policies and action plans towards 2010. The status of National Fishery Statistical Systems is examined, considering Fishery Census and current fishery statistics surveys.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Fishery management ; Inland fisheries ; Fishery development ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 132-143
    Format: 12
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26909 | 23782 | 2019-11-14 00:57:55 | 26909 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The main objective of the compilation and publication of Catch-Effort Statistics for the South China Sea Area is to provide available statistical information to scientists in the region. The responsibility to publish these statistics was transferred to the Marine Fishery Resources Development and Management Department (MFRDMD) of SEAFDEC in 1993. An outline is given of the current status of the catch-effort statistics data for 1992 and 1993 under the following headings: Annual catch-effort -- catch and fishing effort by type of fishing gear, catch and fishing effort by type of fishing gear and size of management; Monthly catch-effort data -- catch and fishing effort by type of fishing gear and by month, catch and fishing effort by type of fishing gear, by month and by size of management; Specific data on catch-effort -- Hong Kong, Indonesia. Activities to be undertaken in order to improve the collection and compilation of catch and effort statistics are listed.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Fish catch statistics ; Catch/effort ; Data acquisition ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 198-202
    Format: 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26900 | 23782 | 2019-11-12 06:29:11 | 26900 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Following a brief account of current general trends in the fishery sector of Taiwan, details are given of fish production and fishery policy towards 2010. The status of National Fishery Statistics Systems is outlined, describing the Fishery Census, and catch-effort and fish processing statistics. Some proposals are made to improve the National Fishery Statistical Systems.
    Keywords: Fisheries ; Marine fisheries ; Industrial products statistics ; Fishery statistics ; Inland fisheries ; Fish catch statistics ; Catch/effort ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 114-131
    Format: 18
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26903 | 23782 | 2019-11-12 06:14:21 | 26903 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A brief account is given on the current situation regarding the Vietnamese fisheries, describing the country's fishery policies towards 2010. Proposals for the implementation of the various policies it had developed include: institutional strengthening; strengthening the science and technology to speed up production; and, strengthening fisheries planning. The existing fishery statistical system is detailed.
    Keywords: Fisheries ; Fishery policy ; Marine fisheries ; Fishery statistics ; Inland fisheries ; Fishery development ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 159-164
    Format: 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26904 | 23782 | 2019-11-12 06:11:35 | 26904 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: FIDI, the FAO Fishery Information, Data and Statistics Unit, is responsible for the collection of global fishery statistics. Statistics on catches and landings have been collated by the FAO since 1950. The statistics are usually obtained from national reporting offices and, wherever possible, verified from other sources. The resulting statistics are stored in databases and disseminated through annual publications such as the FAO Yearbook of Fishery Statistics, for catches and landings, aquaculture and commodities (and less frequent for the fleet statistics). The data are also made available in electric form by the distribution of diskettes with yearly updated platform independent databases with time series: FISHSTAT PC, AQUACULT PC and FISHCOMM PC. Details are given of the following FAO Fisheries Databases maintained by FIDI: Nominal catch and landings; Aquaculture production of fish; Fishery commodities; Fleet statistics; Employment statistics; Apparent consumption of fish and fishery products. Fishery statistical software packages are also detailed: ARTPLAN; ARTFISH/ARTSER for Windows; ARTHELP; and, ARTBIEC.
    Keywords: Fisheries ; Marine fisheries ; Computer programs ; Data processing ; Inland fisheries ; Aquaculture statistics ; Data collections ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 166-173
    Format: 8
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26906 | 23782 | 2019-11-12 06:06:46 | 26906 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Follow-up action by FAO regarding the recommendations from the 1994 Workshop on Fishery Information and Statistics in Asia is detailed under the headings: 1) Regional and international levels; 2) Fishery statistical bulletin for the South China Sea area; 3) Socio-economic statistics; and, 4) Aquaculture statistics.
    Keywords: Fisheries ; Marine fisheries ; Computer programs ; Fishery statistics ; International cooperation ; Inland fisheries ; Aquaculture statistics ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 183-187
    Format: 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26907 | 23782 | 2019-11-12 06:01:56 | 26907 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The SEAFDEC Fishery Statistical Bulletin for the South China Sea Area is aimed at providing reliable and comparable fishery statistics with standardized definitions and classifications to facilitate the exchange of information for the management of fishery resources and the planning of various fishery development programs for countries bordering the South China Sea. Details are given of the development of the SEAFDEC Fishery Statistics Program and an outline provided of the 1994 Regional Workshop on Fishery Information and Statistics in Asia. The collection and compilation of data for the Bulletin is discussed briefly, covering various problems and constraints encountered.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Inland fisheries ; Fishery development ; Data acquisition ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 192-196
    Format: 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26912 | 23782 | 2019-11-14 00:38:54 | 26912 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: An overview is provided of basic methodological and operational concepts of the statistical monitoring of artisanal fisheries, making specific reference to shore-based sampling surveys. The common characteristics of data collection methods are described and standard procedures for the derivation of estimates from sample magnitudes are discussed. Commonly used approaches for the storage/processing of collected basic data are outlined.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Fishery surveys ; Artisanal fishing ; Biological sampling ; Data acquisition ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 214-223
    Format: 10
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26911 | 23782 | 2019-11-14 00:43:26 | 26911 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A review is made of the FISHSTAT NS1 total production statistics and the FISHSTAT AQ aquaculture production statistics for Asia and the Pacific, reported to the FAO. An examination is also made of the quality of these statistics, identifying problems and providing recommendations for possible remedies.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Inland fisheries ; Aquaculture statistics ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 203-209
    Format: 7
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26905 | 23782 | 2019-11-12 06:08:48 | 26905 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Information is provided on various developments since the 1994 Regional Workshop of Fishery Information and Statistics in Asia, at the global level which may have implications for fishery statistics, particularly as a basis for fishery management. The following are covered: UN Agreement on straddling fish stocks and highly migratory fish stocks; FAO compliance agreement; Code of conduct for responsible fisheries; and, Kyoto declaration and plan of action.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Inland fisheries ; International agreements ; Information systems ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 174-182
    Format: 9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26910 | 23782 | 2019-11-14 00:41:20 | 26910 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: In 1954, the UN Statistical Commission decided that the fish catches should be assigned to the country of the flag flown by the fishing vessel and this concept was adopted by all member agencies of the Coordinating Working Party on Fishery Statistics (CWP). However, since international joint-ventures in world fisheries have increased considerably, both in number and in economic importance, such arrangements are often a source of difficulty in assigning the nationality to the catch. A brief review is made of some specific situations in which difficulties in assigning a nationality existed, leading to misreporting and double counting (New Zealand, Namibia, Peru and Argentina). Recommendations made by the CWP at its 17th Session are outlined. At the meeting it was stressed that reporting by the flag State of the vessel concerned is always the preferred option.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Fish catch statistics ; Joint ventures ; Bilateral agreements ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 210-213
    Format: 4
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26908 | 23782 | 2019-11-12 06:04:35 | 26908 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Brief reports are provided on 2 recent FAO activities related to by-catch and discard issues: 1) Technical Consultation on Reduction of Wastage in Fisheries; and, 2) FAO Shark Catch/By-catch Study.
    Keywords: Fisheries ; Marine fisheries ; Shark fisheries ; By catch ; Catch composition ; Fishery management ; International agreements ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 188-190
    Format: 3
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26913 | 23782 | 2019-11-14 00:36:26 | 26913 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Details are given of experience gained during the design and implementation of data collection methods for artisanal fisheries in a number of countries under the FAO Technical Cooperation Programme, and other national and regional projects supported by UNDP and Government Cooperation Agencies. Some general approaches that have been introduced in a number of FAO member countries are illustrated and major constraints and problems that are found to be common in the design and implementation of statistical developmental activities are highlighted. It is concluded that statistically-related management tasks are performed more effectively if designated to a national fishery statistical committee or work group with responsibilities and modus operandi as regards system design, development, implementation maintenance and support. Prior to implementing a large-scale system at national level it would be advantageous to develop a prototype system in a geographically limited but representative area. Based on experiences gained from the prototype system, stepwise expansion of the system in other areas may be necessary, by first considering new methodological requirements and operational/logistical constraints.
    Keywords: Fisheries ; Marine fisheries ; Data processing ; Fishery statistics ; Artisanal fishing ; Data acquisition ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 224-230
    Format: 7
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26914 | 23782 | 2019-11-13 08:06:27 | 26914 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: SEAFDEC has been responsible since June 1996 for the collation of tuna fishery statistics in the Southeast Asian region. The Marine Fishery Resource Development and Management Department (MFRDMD) of SEAFDEC has requested countries fishing for tuna in the region to provide statistical data for collation. MFRMDM will maintain appropriate databases and publish the data or disseminate it upon request. It has also developed a computer programme known as the Fishery Resources Information and Management System to facilitate information transfer to and from Member Countries. A list is given of species covered, which include 3 major groups of tunas and tuna-like species (tunas and bonitos, seerfish and billfish). A brief account is given of development and progress made in this sector, outlining also the various problems encountered in the collation of tuna fishery statistics provided by Member Countries.
    Keywords: Fisheries ; Data processing ; Fishery statistics ; Tuna fisheries ; Data acquisition ; Thunnidae ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 232-240
    Format: 9
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26902 | 23782 | 2019-11-12 06:19:10 | 26902 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Following an account of the contribution of the Thai fishery sector to the national economy, details are given of the results of the various marine fishery censuses conducted in 1967, 1985 and 1995. Other surveys covered include: log book survey, fishing community survey, coastal culture survey, specialized survey, and inland fishery production survey.
    Keywords: Fisheries ; Fishery economics ; Marine fisheries ; Fishery statistics ; Fishery surveys ; Inland fisheries ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 144-158
    Format: 15
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26915 | 23782 | 2019-11-13 06:17:42 | 26915 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: The FAO Fisheries Information, Data and Statistics Unit has been systematically collecting and disseminating global aquaculture production by weight and value since 1984. The mechanisms for collecting data and the coverage and quality of data on production from aquaculture provided by countries to FAO have been constantly under review, with the aim of improving their quality and relevance to future national and global needs. Such future needs are highlighted and a discussion presented as to how some of these needs are being currently addressed. The following topics are covered: aquaculture as an economic activity; definition of aquaculture; unidentified aquatic organisms; proposed changes for reporting global production from fisheries; quantitative structural information on aquaculture; and, current status and constraints of collecting aquaculture statistics.
    Keywords: Aquaculture ; Fisheries ; Data processing ; Aquaculture development ; Aquaculture statistics ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 242-254
    Format: 13
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26916 | 23782 | 2019-11-13 06:14:54 | 26916 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A wide array of socio-economic data is needed for effective fishery management and development planning. Biological, technical, economic, social, and institutional information and data are required for sound management. How much information and routine, long-term data are essential and how reliable the data should be, has to be determined on a case by case basis. The type of data collected, their frequency, and the method of data acquisition vary greatly among countries with the varying importance of the fishery sector in the national economy. A brief account is given of the requirements and problems in data collection.
    Keywords: Fisheries ; Fishery economics ; Fishery statistics ; Fishery management ; Fishery development ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 256-261
    Format: 6
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26917 | 23782 | 2019-11-13 06:11:51 | 26917 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A discussion is presented on national accounts and economic planning, considering in particular the contribution of the fishery industry to the national well-being. A case study is given of the preparation of national economic accounts in Norway. The following topics are covered: Supply and use tables; accounts on fisheries; sources of data and methods of estimation; and, environmental accounting.
    Keywords: Fisheries ; Fishery economics ; Fishery management ; Fishery industry ; Data acquisition ; National planning ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 262-281
    Format: 20
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26918 | 23782 | 2019-11-13 06:08:51 | 26918 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Details are given of a marine fishery census conducted in Thailand in 1995 in order to: 1) collect data on the basic economic structure of marine capture fishery, coastal aquaculture and socio-economic characteristics of fishery households, fishery employee's households, fishermen and aquaculture workers; and, 2) provide data as a sampling frame of other related surveys. The census dealt mainly with marine capture fishery and coastal shrimp culture; the findings of the coastal shrimp culture sector are described in particular.
    Keywords: Aquaculture ; Fisheries ; Aquaculture enterprises ; Shrimp culture ; Fishery surveys ; Marine aquaculture ; Census ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 282-294
    Format: 13
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  • 72
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26920 | 23782 | 2019-11-13 06:01:31 | 26920 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: A discussion is presented on national accounts and economic planning, considering in particular the contribution of the fishery industry to the national well-being. A case study is given of the preparation of national economic accounts in Norway. The following topics are covered: Supply and use tables; accounts on fisheries; sources of data and methods of estimation; and, environmental accounting.
    Keywords: Fisheries ; Fishery economics ; Fishery management ; Fishery industry ; Data acquisition ; National planning ; Marine
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 262-281
    Format: 20
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  • 73
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26919 | 23782 | 2019-11-13 06:05:26 | 26919 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-07-24
    Description: Fishery statistics have been successfully used to highlight increasing fishery production and contribution of fisheries to national economy. They are generally collected and compiled into national and regional yearbooks to demonstrate changes in fishery production from the previous year, or over a given period of time. An examination is made of regional cooperation for a fishery statistics programme, considering the Southeast Asia region and various issues and constraints in the compilation and utilization of fishery statistics. It has been shown that the basic functions of fishery statistics programmes are to provide data and information services for the sector management. Thus, regional cooperation in fishery statistics programmes must begin with identification of the sector management needs and determination of data requirements to address the needs identified. It is concluded that the region has made considerable progress in developing and establishing common data handling methodologies and tools. The existing regional standards include standard definitions and classifications of fish species, fishing gears and fish products used for compilation of statistics for the South China Sea Areas and FAO. Regional cooperation and collaboration ensure benefits of shared expertise and resources, and availability of comparable data for management and development of regional fisheries resources and industries.
    Keywords: Fisheries ; Data processing ; Fishery statistics ; Information services ; International cooperation ; Data collections ; Data acquisition ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 298-306
    Format: 9
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  • 74
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26261 | 2002 | 2019-03-01 05:44:08 | 26261 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-09-24
    Description: Four species of cephalopods were collected in the South China Sea, area III (Western Philippines) during April-May 1998. An oceanic species, Sthenoteuthis oualaniensis (Lesson, 1830) was caught by automatic squid jigging on board M.V SEAFDEC and three additional cephalopod species, Sepioteuthis lessoniana Lesson, 1830, Thysanoteuthis rhombus Troschel, 1857 and Nototodarus hawaiiensis (Berry, 1912) were caught by squid jigging and purse seine of M.V. Maya Maya. S. oualaniensis was the dominant oceanic species in the study area. Descriptions, measurements and distributions of these squids were included.
    Keywords: Fisheries ; Purse seining ; Jigging ; Fishery surveys ; Cephalopod fisheries ; Commercial species ; South China Sea ; Philippines ; Sthenoteuthis oualaniensis ; Thysanoteuthis rhombus ; Sepioteuthis lessoniana ; Nototodarus hawaiiensis
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 76-100
    Format: 25
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  • 75
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26268 | 2002 | 2019-02-22 07:03:16 | 26268 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-09-24
    Description: Phytoplankton density, taxonomic composition and distribution in the thermocline layer were investigated to compare with those in the surface layer of 31 stations in the western Philippines during 17 April – 9 May 1998. The samples were collected from surface, thermocline depth (the beginning of thermocline), and chlorophyll maximum depth. In this study, thermocline depth and chlorophyll maximum depth were included in the thermocline layer. Three hundred and thirty-eight taxa, composed of 2 species of blue green alga, 144 species of diatoms and 168 species of dinoflagellates were identified. The occurrence of the species in each sampling depth were recorded. Phytoplankton densities at chlorophyll maximum depth were mostly highest among the sampling depths observed. The most abundance was 20,683 cells/l found at thermocline depth of station 24 due to the blooms of many diatom species. Oscillatoria (Trichodesmium) erythraea and Chaetoceros lorenzianus were dominant from surface through chlorophyll maximum depth. Seven species of diatoms presented as the dominant species only in the thermocline layer. The toxic dinoflagellates were found in low cell densities. Diversity and evenness indices of phytoplankton at chlorophyll maximum depth were high.
    Keywords: Fisheries ; Oceanography ; Dominant species ; Abundance ; Population density ; Phytoplankton ; Thermocline ; South China Sea ; Philippines ; Dinoflagellata ; Bacillariophyceae
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 197-216
    Format: 20
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  • 76
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26383 | 23782 | 2019-04-05 06:54:11 | 26383 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2021-09-24
    Description: Oceanic cephalopod exploration was conducted by M.V. SEAFDEC in Vietnamese waters during 21 April- 5 June 1999, as part of SEAFDEC’s collaborative research survey on the fisheries resources of the South China Sea Area IV (Vietnamese waters) with focus on tuna, oceanic squid and other highly migratory species. Squid fishing activities were conducted in 10 stations, ranging in the depth from 600-4000 m, using four automatic jigging machines at night. The purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1830) was the only species caught throughout the fishing area. Diagnosis and distribution of the species in the study area are reported.
    Keywords: Biology ; Fisheries ; Animal morphology ; Community composition ; Geographical distribution ; Marine molluscs ; Taxonomy ; Sthenoteuthis oualaniensis ; Cephalopoda ; Viet Nam ; South China Sea
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 169-180
    Format: 12
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  • 77
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26259 | 2002 | 2019-03-01 05:56:06 | 26259 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2022-08-02
    Description: Round scad exploration by purse seine in the waters of western Philippines was conducted from April 22 to May 7, 1998 for a period of five (5) fishing days with a total catch of 7.3 tons and an average of 1.5 tons per setting. Dominant species caught were Decapterus spp. having 70.09% of the total catch, followed by Selar spp. at 12.66% and Rastrelliger spp. 10.70%. Among the Decapterus spp. caught, D. macrosoma attained the highest total catch composition by species having 68.81% followed by D. kurroides and D.russelli with 0.31% and 1.14% respectively. The round scad fishery stock was composed mainly of juvenile fish (less than 13 cm) and Age group II (13 cm to 14 cm). Few large round scad at Age group IV and V (20 cm to 28 cm) stayed at the fishery. Other fishes caught were: Auxis rochei (0.85%), A. thazard (0.12%), Caranx spp. (0.45%), Emmilichthys nitidus (0.58%), Euthynnus affinis (0.42%), Leiognathus ruconius (0.58%), Loligo sp. (0.31%), Megalaspis cordyla (0.09%), Rastrelliger spp. (10.70%), Sardinella longiceps (0.03%), Scomberoides lysan (0.24%), Selar spp. (12.66%), Sphyraena spp. (0.90%), Thunnus albacares (0.96%) and others (1.02%). Tuna and tuna like fishes such as yellowfin tuna, eastern little tuna, bullet tuna, frigate tuna and oceanic squid are distributed in the upper latitudes of the survey area. On the other hand, round scads, big-eyed scads and Indian mackerels are dominantly present in the lower latitudes of the survey area.
    Keywords: Fisheries ; Exploratory fishing ; Purse seining ; Age composition ; Catch composition ; Fishery surveys ; Carangid fisheries ; South China Sea ; Philippines ; Rastrelliger ; Decapterus
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 49-64
    Format: 16
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  • 78
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26258 | 2002 | 2019-03-01 06:00:19 | 26258 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2022-08-02
    Description: An exploratory tuna longline fishing survey was conducted using the research and training vessels of the Southeast Asian Fisheries Development Center, the 1,178 GT MV SEAFDEC and the Bureau of Fisheries and Aquatic Resources, the 165 GT MV MAYA-MAYA in the South China Sea Waters, West of the Philippines from April to May, 1998. A total of 3,796 hooks was set in sixteen (16) fishing stations. There were no tuna caught during the entire survey but only minor and irrelevant species like the Pacific lancetfish, sharks and an opah species, Lampris guttatus. The important fishing and oceanographic factors during the survey and other research results on longline are described and analyzed. Additional longline studies within and near the Philippines territorial waters are also presented to substantiate the research results of the joint SEAFDEC/BFAR resource exploratory.
    Keywords: Fisheries ; Exploratory fishing ; Catch composition ; Fishery surveys ; Longlining ; Tuna fisheries ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 39-48
    Format: 10
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  • 79
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26890 | 23782 | 2019-11-14 01:01:29 | 26890 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2022-08-02
    Description: Fishery statistics in Brunei Darussalam have been collected by the Department of Fisheries since the 1940s. In the early 1980s, a number of statistics were collected, such as catch and effort data of artisanal fishermen, aquaculture statistics, processing statistics as well as data from major wet markets focusing on the amount, prices of marketed fish either from the local fishermen or imported. In 1984, the collection of statistics on commercial fishing was started. The statistics have been used in the formulation of fishery management and development policies as well as for sectoral development. Following a brief account of the responsibility and statistic collections of the Department of Fisheries, an examination is made of employment in the fishery sector, fisheries production, fish marketed and the GDP for the fishery industry. Fisheries in Brunei Darussalam is a very healthy industry, where production is well below the maximum allowable harvestable limit of 20,000 tons at 30%. The Department is embarking to increase production from the capture fishery to reduce the country's dependence on imported fish; the same applies for aquaculture, in order to complement production from the capture fisheries. The processing sector is also increasing in importance, especially with the increase in the number of capture fishery licenses, and the demand for quality and value-added products.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Aquaculture development ; Aquaculture statistics ; Fish catch statistics ; Marine aquaculture ; Freshwater aquaculture ; Fishery development ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 6-14
    Format: 9
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