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| Thomas, A.; Dufour, O.; Pianet, R.; Morón, J.. |
| The present data-recording system used in the Seychelles to compile the tuna purse-seine statistics in the WIO was established by ORSTOM at the beginning of the fishery (1982/3) for the French fleet, and then extended to the Seychelles Fishing Authority (SFA) and Madagascar in 1991-92 for all fleets. After several modifications, it has been working efficiently for the last ten years, making it possible to build a very comprehensive tuna database for the purse-seine fleets since the beginning of the fishery. The extension to Madagascar started in 1992, within the framework of the Regional Tuna Project. A specific laboratory, the(Unité Statistique Thonière d’Antsiranana (USTA) was installed, the work being done in collaboration between ORSTOM, the Direction... |
| Tipo: Report |
Palavras-chave: Fishery statistics; Purse seiners; Fishery data. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/515 |
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| Fonteneau, A.; Marsac, F.; Pianet, R.; Stequert, B.. |
| This document attempts to develop an overview of the future needs for tuna research that should be recommended by the IOTC. Because of the spectacular increase of the tuna catches in the Indian Ocean during the last 15 years, it is necessary to conduct active research on the major stocks, giving a high priority to all research that will allow a reliable assessment of the stock status. A general problem in the tuna research conducted in the Indian Ocean is the lack of large-scale tagging programs. Such programs should be a priority in future Indian Ocean tuna research. Other research should also be conducted simultaneously upon various biological parameters which are fundamental to stock assessment. The fishery associated with artificial floating objects,... |
| Tipo: Proceedings Paper |
Palavras-chave: Catch/effort Purse seining Catching method ISW; Indian Ocean. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/61 |
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| N’Goran Ya, N.; Norström, V.; Diouf, T.; Pianet, R.; Hervé, A.. |
| Ce document présente un bilan statistique résumé de l’activité de la flottille des canneurs et senneurs FIS 6 de 1991 à 2001. Les données historiques de 1969 à 1990 ont été décrites dans un document antérieur (Diouf et Fonteneau 1999). Les données de 1991 à 2001 de ce document ont été révisées et complétées pour l’année 2001. Le document donne des indications sur les caractéristiques des flottilles (type de pêche par catégorie en nombre), les efforts de pêche par type et catégorie de taille des navires, le nombre de carrés de 1° visités par la flottille par année, les prises, les efforts standardisés et les PUE par espèce pour les canneurs et les senneurs, ainsi que les prises par classes de tailles par trimestre pour chacune des trois espèces et pour les... |
| Tipo: Journal Contribution |
Palavras-chave: Pêche thonière; Albacore; Listao; Patudo; Canneurs; Senneurs; Prises/efforts; Compositionspécifique; Composition en taille Tuna fisheries Fishery statistics. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/392 |
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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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| Pallares, P.; Delgado de Molina, A.; Pianet, R.; Ariz, J.. |
| This document contains summary statistics of the NEI4 purse seiner fleet fishing in the Indian Ocean, as well as some information about how the data are collected. The sampling scheme, the sampling coverage, maps and diagrams representing the fishing pattern of this fleet by time and area strata. Data collection and the sampling programme for this fleet are the same as those used for the Spanish and French purse seine fleets. 'Research Group' Instituto Espanol de Oceanografia. Corazon de Maria, 8. 28002, Madrid. Spain ; Instituto Espanol de Oceanografia. PO Box 1373. S/C Tenerife. Spain ; Centre IRD de Motpellier, BP 5045 - 34 032 Montpellier Cedex01. France. |
| Tipo: Proceedings Paper |
Palavras-chave: Fishing vessels; Fishery statistics; Purse seine; Data collections; Sampling. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/68 |
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| Delgado de Molina, A.; Pallares, P.; Pianet, R.; Ariz, J.. |
| This document contains summary statistics of the NEI4 purse seiner fleet fishing in the Indian Ocean, as well as some information about how the data are collected. The sampling scheme, the sampling coverage, maps and diagrams representing the fishing pattern of this fleet by time and area strata. Data collection and the sampling programme for this fleet are the same as those used for the Spanish and French purse seine fleets. |
| Tipo: Proceedings Paper |
Palavras-chave: Purse seines. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/975 |
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| Pianet, R.; Pallares, P.; Petit, Ch.. |
| The difficulties associated with tropical tuna sampling strategies, particularly those resulting from the large-scale adoption of the method of fishing on logs, have caused the Indian Ocean tuna scientists concern since the beginning of the purse seine fishery, as well as the ICCAT SCRS (Standing Committee for Research and Statistics of the International Commission for the Conservation of Atlantic Tunas) in recent years. Upon the recommendation of this Committee, in 1996 Spain and France embarked on a European Union project aiming to study the consequences of this new fishing tactic on the estimated catch by species and by size, and to implement a new sampling strategy so as to improve the accuracy of the statistics. Many specific analyses have been... |
| Tipo: Proceedings Paper |
Palavras-chave: Purse seines; Tuna fisheries. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/971 |
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