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| Registros recuperados: 63 | |
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| The number of purse seiners active in the Western Indian Ocean during the second quarter of 1988 increased from 34 at the end of the first quarter to a maximum of 40 in June. This represents a significant increase in the number of vessels compared to the same period last year when 30 vessels were in operation. Good fishing results obtained at the beginning of the year continued throughout the second quarter of 1988, with the average catch rates increasing from 18 MT/day during the first quarter to a record high of 21 MT/day. In the previous years a fishing pattern had been set, whereby vessels moved to the south around the Mozambique Channel during April-May and excellent catches of skip jack were taken. This year however, the boats left the area early... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/5200 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels that are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. PURSE SEINERS PRINCIPAL POINTS: The total purse seine tuna catch for the Western Indian... |
| Tipo: Other |
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/5214 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels that are licensed to fish in the Seychelles EEZ and for purse seiners, as well as from data collected via the tuna sampling programme conducted during transhipment in Port Victoria. Sometimes there are delays in these being received at SFA, especially for longliners that often spend up to a year at sea, and for purse seiners the delays are usually during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel and are not necessarily using Port Victoria for transhipment. Readers should note that many of the figures presented for longline fishing vessel are subject to... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries; Catch statistics. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/5191 |
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| Due to the inclusion of trips which started at the end of 1993 but which finished in early 1994 the 1993 total catch for the WIO has been revised upwards from 275,058, Published in the last Tuna Bulletin, to 276,078 MT. The initial estimate for the total WIO purse seine tuna catch for the first six months of 1994 is 124,706 MT (the figure of 100,000 MT published in the Globefish Bulletin 3/94 was based on an early estimate). However, this figure may also be revised upwards when trips starting in the second quarter of 1994 and finishing in third quarter are included in the next quarterly Tuna Bulletin of 1994. This compares with 132,126 MT caught in the first three months of 1993. Some 2,442 days were fished in the second quarter of 1994 compared to 3,561... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries. |
| Ano: 1994 |
URL: http://hdl.handle.net/1834/5177 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels that are licensed to fish in the Seychelles EEZ and for purse seiners, as well as from data collected via the tuna sampling programme conducted during transshipment in Port Victoria. Sometimes there are delays in these being received at SFA, especially for longliners that often spend up to a year at sea, and for purse seiners the delays are usually during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel and are not necessarily using Port Victoria for transshipment. |
| Tipo: Report |
Palavras-chave: Tuna fisheries; Purse seiners; Catch statistics; Longlining; Tuna; Fisheries data. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/5304 |
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| Data used to generate the Tables and Figures presented in this report are based on logbook returns from the fishing vessels. Readers should, therefore, be aware that figures presented in this report are likely to change in future publications of the Tuna Bulletin once all the data relating to the quarter being reported on becomes available. The initial estimate for the total WIO purse seine tuna catch for the first nine months of 1994 is 176,216 Mt. However, this figure may also be^ revised upwards when trips starting in the third quarter of 1994 and finishing in the fourth quarter are included in the next quarterly Tuna Bulletin of 1994. This compares with 203,797 Mt caught in the first nine months of 1993. Some 2,532 days were fished in the third quarter... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries. |
| Ano: 1994 |
URL: http://hdl.handle.net/1834/5176 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels that are licensed to fish in the Seychelles EEZ and for purse seiners, as well as from data collected via the tuna sampling programme conducted during transshipment in Port Victoria. Sometimes there are delays in these being received at SFA, especially for longliners that often spend up to a year at sea, and for purse seiners the delays are usually during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel and are not necessarily using Port Victoria for transshipment. |
| Tipo: Report |
Palavras-chave: Tuna fisheries; Purse seiners; Catch statistics; Longlining; Fishery data; Tuna. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/5307 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort report forms (1ogs') returned from the fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is now shown at the head of each table. Principal Points Purse seiners - The revised total catch for the Western Indian Ocean for 1994 is now 272,192 t. This is the... |
| Tipo: Other |
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/5215 |
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| Seychelles Fishing Authority. |
| Due to the inclusion of trips which started at the end of 1993 but which finished in early 1994 the 1993 total catch for the WIO has been revised upwards from 263,918 MT, published in the last Tuna Bulletin, to 275,058 MT. The initial estimate for the total WIO purse seine tuna catch for the first three months of 1994 is 61,159 MT (the figure of 70,000 MT published in the Globefish Bulletin 2/94 was based on an early estimate). However, this figure may also be revised upwards when trips starting in the first quarter of 1994 and finishing in second quarter are included in the next quarterly Tuna Bulletin of 1994. This compares with 71, 142 MT caught in the first three months of 1993. Some 2,173 days were fished in the first quarter of 1994 compared to... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries. |
| Ano: 1994 |
URL: http://hdl.handle.net/1834/5179 |
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| Pianet, R.. |
| This document presents a brief summary of the main general French purse-seiners activities in the Indian Ocean since the beginning of their fishery in 1981: catch by species and fishing type (log and free swimming schools), effort and sampling for sizes and species composition. The description of statistics gathering, sampling and processing procedures are reported in a specific document presented at the meeting (WPDCS/99/09). |
| Tipo: Proceedings Paper |
Palavras-chave: Purse seiners; Fish catch statistics. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/870 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners. PRINCIPAL POINTS: The total purse seine tuna catch for the Western Indian... |
| Tipo: Other |
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/5202 |
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| The number of purse seiners active in the Western Indian Ocean during the first quarter of 1986 decreased from 38 in January to 36 in March, down from 49 vessels present during the same quarter in 1985. Fishing success during the first quarter of 1986 was higher than the first quarter of 1985, though not reaching the level of the first quarter of 1984.In past years, an increase in the proportion of yellow fin caught, compared to skipjack, has been observed to occur during the onset of the north-west monsoon in November and continued through July, only broken by a drop during April. In 1985 the increase did not commence until December. During January and February 1986, the proportion of yellow fin was high, but dropped during March, a month earlier than... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries. |
| Ano: 1986 |
URL: http://hdl.handle.net/1834/5182 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a del{--y in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners. PRINCIPAL POINTS: The total purse seine tuna catch for the Western Indian... |
| Tipo: Other |
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/5211 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Spmetimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revi¬sion (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners. PRINCIPAL POINTS: The total purse seine tuna catch for the Western Indian... |
| Tipo: Other |
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/5197 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners Principal Points - The total purse seine tuna catch for the Western Indian... |
| Tipo: Other |
Palavras-chave: Purse seiners; Tuna fisheries; Catch statistics. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/5194 |
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| Bannerman, P.. |
| ICCAT recommended a restricting periodically the use of Fish Aggregating Devices (FADs) by Tuna Purse seine vessels in the Atlantic Ocean. This recommendation was based on recent scientific evidence indicating the extensive destruction of juvenile tunas by this method of fishing. Ghana participated in the moratorium during the months of November 1999 to January 2000. A total of 5 Purse seine vessels operated from Tema, spending 238 days at sea with observers deployed onboard to monitor their fishing activities. Preliminary results show a reduction of approximately 40% in overall catches of the principal tuna species as compared to the same period in 1998-1999, with a likely decrease in quantities (weight) of the juvenile tunas taken by the Purse seines. |
| Tipo: Report |
Palavras-chave: Baitboat; ICCAT; Moratorium; Juvenile tuna; Tuna fisheries; Purse seiners. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/220 |
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| The number of purse seiners active in the Western Indian Ocean during the third quarter of 1987 increased from 30 vessels in June to 39 in September. This figure compares favorably to that of September of the previous year, when 34 vessels were in operation. Catch rates this year improved from the first and second quarters as expected, reaching an all time average high of 24 MT/day for the third quarter. During January and February, the proportion of yellow fin in the catch was high, falling sharply from April to May as vessels moved south to fish around the Mozambique Channel. In June, one month earlier than last year, the proportion of yellow fin in the catch increased to 75% as the fleet started to move to the north of the Seychelles EEZ but dropped... |
| Tipo: Other |
Palavras-chave: Purse seiners. |
| Ano: 1987 |
URL: http://hdl.handle.net/1834/5216 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (‘logbooks') returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as ore data become available. The date upon which the SFA database was closed prior the generation of the statistical tables is shown at the head of each table. Purse seiners Principal Points - The revised total purse seine tuna catch for the Western... |
| Tipo: Other |
Palavras-chave: Catch statistics; Purse seiners; Tuna fisheries. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/5217 |
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| de Montaudouin, X.; Hallier, J.-P.; Hassani, S.. |
| The tuna purse seine fishery based in Seychelles is analysed using data collected by observers on board French, Spanish, Japanese and Soviet vessels. From 1986 to 1989, diffferent types of data were recorded such as meteorolical and oceanographic parameters, aspects and sizes of schools sighted, seiner activities, fishing characteristics (catch, yield, duration of fishing sets). Reliability of observers data with respect to catches is assessed by comparison with log data from French purse seiners. |
| Tipo: Report |
Palavras-chave: Tuna fisheries; Data collections; Purse seiners. |
| Ano: 1990 |
URL: http://hdl.handle.net/1834/5117 |
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| Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners Principal Points - The total purse seine tuna catch for the Western Indian... |
| Tipo: Other |
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries. |
| Ano: 1996 |
URL: http://hdl.handle.net/1834/5190 |
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| Registros recuperados: 63 | |
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