STATISTICS AND MONITORING SECTION

Working Papers - Internal Reports - Meeting Reports

2009

Lawson, T.A. Selectivity bias in grab samples and other factors affecting the analysis of species composition data collected by observers on purse seiners in the Western and Central Pacific Ocean. International Working Group Meeting on Tuna Purse-Seine and Baitboat Catch Species Composition Data Derived From Observer and Port Sampled Data, 15-19 June 2009, Sète, France.

2008

Report on the Second Tuna Data Workshop (TDW-2), 7-11 April 2008

Lawson, T.A. Factors affecting the use of species composition data collected by observers and port samplers from purse seiners in the Western and Central Pacific Ocean. Working Paper ST–WP–3. Fourth Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 11-22 August 2008 Port Moresby, Papua New Guinea.

2007

Report on the First Tuna Data Workshop (TDW-1), 23-27 October 2006

Lawson, T.A. Further analysis of the proportion of bigeye in ‘yellowfin plus bigeye’ caught by purse seiners in the WCPFC Statistical Area. Working Paper ST IP–5. Third Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 13–24 August 2007, Honolulu, United States of America.

2006

Lawson, T.A. Scientific aspects of observer programmes for tuna fisheries in the Western and Central Pacific Ocean. Working Paper ST WP–1. Second Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 7–18 August 2006, Manila, Philippines.

Lawson, T.A. Observer coverage rates and reliability of CPUE estimates for purse seiners in the Western and Central Pacific Ocean. Information Paper ST IP–3. Second Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 7–18 August 2006, Manila, Philippines.

2005

Lawson, T.A. Data-related tasks for the WCPFC Scientific Committee. Working Paper ST WP–2. First Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 8–19 August 2005, Noumea, New Caledonia.

Lawson, T.A. Update on the proportion of bigeye in ‘yellowfin plus bigeye’ caught by purse seiners in the Western and Central Pacific Ocean. Working Paper ST WP–3. First Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 8–19 August 2005, Noumea, New Caledonia.

Lawson, T.A. & P.G. Williams. Comparison of the species composition of catches by purse seiners in the Western and Central Pacific Ocean determined from observer and other types of data. Working Paper ST WP–4. First Regular Session of the Scientific Committee of the Western and Central Pacific Fisheries Commission, 8–19 August 2005, Noumea, New Caledonia.

2004

Lawson, T.A. Observer coverage rates and reliability of CPUE estimates for offshore longliners in tropical waters of the Western and Central Pacific Ocean. Working Paper SWG–4. Seventeenth Meeting of the Standing Committee on Tuna and Billfish, 9–18 August 2004, Majuro, Marshall Islands.

Lawson, T.A. Availability of observer data for estimating catches of non-target species by longliners in the Western and Central Pacific Ocean, with catch estimates for offshore fleets in tropical waters. Working Paper SWG–5. Seventeenth Meeting of the Standing Committee on Tuna and Billfish, 9–18 August 2004, Majuro, Marshall Islands.

Lawson, T.A. Information regarding anticipated data-related tasks for the WCPFC Scientific Committee. Working Paper SWG–6. Seventeenth Meeting of the Standing Committee on Tuna and Billfish, 9–18 August 2004, Majuro, Marshall Islands.

Williams, P. Preliminary review of data collection forms used in Philippines tuna fisheries. Working Paper SWG–7. Seventeenth Meeting of the Standing Committee on Tuna and Billfish, 9–18 August 2004, Majuro, Marshall Islands.

2003

Lawson, T.A. Observer coverage rates and the accuracy and reliability of estimates of CPUE for offshore longline fleets targeting South Pacific albacore. Working Paper SWG–4. Sixteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 July 2003, Mooloolaba, Queensland, Australia.

Lawson, T. & A. Coan. Review of Korean catch and effort logsheets. Working Paper SWG–5. Sixteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 July 2003, Mooloolaba, Queensland, Australia.

Lawson, T.A. Analysis of the proportion of bigeye in ‘yellowfin plus bigeye’ caught by purse seiners in the Western and Central Pacific Ocean, based on observer data.  Working Paper SWG–6. Sixteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 July 2003, Mooloolaba, Queensland, Australia.

Lawson, T.A. Proposal for Monitoring the Catches of Highly Migratory Species in the Philippines and the Pacific Ocean Waters of Indonesia. Prepared for the Preparatory Conference for the Commission for the Conservation and Management of Highly Migratory Fish Stocks in the Western and Central Pacific.

2002

Lawson, T., A. Coan & M. Hinton. Review of Taiwanese catch and effort logsheets.  Working Paper SWG–4. Fifteenth Meeting of the Standing Committee on Tuna and Billfish, 22–27 July 2002, Honolulu, Hawaii, United States of America.

Lawson, T.A. Sampling the proportion of bigeye in the catch by purse seiners in the Western and Central Pacific Ocean.  Working Paper SWG–5. Fifteenth Meeting of the Standing Committee on Tuna and Billfish, 22–27 July 2002, Honolulu, Hawaii, United States of America.

Williams, P. Current status of data available from the Indonesian and Philippines domestic tuna fisheries.  Working Paper SWG–8. Fifteenth Meeting of the Standing Committee on Tuna and Billfish, 22–27 July 2002, Honolulu, Hawaii, United States of America.

Lawson, T.A., P.G. Willams, C. Millar & E. Schneiter. Data requirements of the SPC Oceanic Fisheries Programme and status of data. Internal Report N° 47.

2001

Williams, P. & T. Lawson. A review of catches of tuna and tuna-like species in the South China Sea.  Working Paper SWG–4. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 July 2001, Noumea, New Caledonia.

Lawson, T., S.-K. Chang, A. Coan & M. Hinton. Review of Japanese catch and effort logsheets. Working Paper SWG–5. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

Lawson, T.A. Predation of tuna by whales and sharks in the western and central Pacific Ocean. Working Paper SWG–6. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

Millar, C. Classification of purse-seine effort by school association. Working Paper SWG–7. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

Bigelow, K. Estimation of bigeye catches by purse seiners. Working Paper SWG–8. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

Lawson, T. Observer data held by the Oceanic Fisheries Programme covering tuna fishery bycatches in the western and central Pacific Ocean. Working Paper SWG–9. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

Lawson, T. Methods for analysing bycatches with observer data.  Working Paper SWG–10. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

Millar, C & P. Williams. Taiwanese distant-water longline catch characteristics with regard to albacore targeting.  Working Paper SWG–11. Fourteenth Meeting of the Standing Committee on Tuna and Billfish, 9–16 August 2001, Noumea, New Caledonia.

2000

Lawson, T.A. & L. Garibaldi. Comparison of tuna catch statistics for the western and central Pacific Ocean held by FAO and SPC. Internal Report N° 41.

1999

Bigelow, K. Estimating bigeye composition in the purse seine fishery. Working Paper SWG–3. Twelfth Meeting of the Standing Committee on Tuna and Billfish, 6–23 June 1999, Papeete, Tahiti, French Polynesia.

Lawson, T. Proposed minimum standards for tuna fishery catch and effort logsheets. Working Paper SWG–5. Twelfth Meeting of the Standing Committee on Tuna and Billfish, 6–23 June 1999, Papeete, Tahiti, French Polynesia.

Lawson, T.A. Analysis of longline catch per vessel in the western and central Pacific Ocean. Internal Report N° 40.

1998

Lawson, T.A. Issues concerning the Statistics Working Group of the Standing Committee on Tuna and Billfish. Working Paper 3. Eleventh Meeting of the Standing Committee on Tuna and Billfish, 28 May – 6 June 1998, Honolulu, Hawaii, New Caledonia.

Lawson, T.A. & P. Lehodey. Distant-water longline catch and effort in the vicinity of Wallis and Futuna. Internal Report N° 37.

Lawson, T.A. & P.G. Williams. Review of annual catch estimates for tuna fisheries of the Philippines. Internal Report N° 34.

1997

Lawson, T.A. Estimation of bycatch and discards in central and western Pacific tuna fisheries: preliminary results. Internal Report N° 33 (revised July 1997).

1996

Lawson, T.A. Data requirements for conversion of lengths and weights of central and western Pacific tuna and billfish. Internal Report N° 32.

Lawson, T.A. Review of catch estimates for Taiwanese distant-water longliners. Internal Report N° 31.

Lawson, T.A., and A.D. Lewis. Distant-water longline catch and effort in the vicinity of the Cook Islands. Internal Report N° 30.

Lawson, T.A. Distant-water longline catch and effort in the vicinity of Pitcairn. Internal Report N° 29.

Hampton, W.J., T.A. Lawson, P.G. Williams and J.R. Sibert. Interaction between small-scale fisheries in Kiribati and the industrial purse seine fishery in the western and central Pacific Ocean. In: R.S. Shomura, J. Majkowski and R.F. Harman [editors]. Status of interactions of Pacific tuna fisheries in 1995. Proceedings of the second FAO Expert Consultation on Interactions of Pacific Tuna Fisheries, Shimizu, Japan, 23–31 January 1995. FAO Fisheries Technical Paper No. 365. Food and Agriculture Organization of the United Nations, Rome, Italy. Pp: 183–223.

1995

Lawson, T.A., and P.G. Williams. A review of SPC catch and effort logbooks for purse seine, longline and pole-and-line. Internal Report N° 28½.

1994

Lawson, T.A. Coverage and accuracy of catches reported on logbooks provided to coastal states by distant-water purse seine fleets in the tropical western Pacific Ocean. Internal Report N° 26 (revised October 1994).

1993

Lawson, T.A. Indices of abundance of yellowfin tuna in the western Pacific determined from purse-seine catch and effort data. Working Paper 5. Third Meeting of the Western Pacific Yellowfin Research Group, 21–23 June 1993, Pohnpei, Federated States of Micronesia.

1992

Lawson, T.A. Non-reporting and under-reporting of catches by Western Pacific purse seiners in data collected by coastal states. Internal Report N° 26.