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STRAIT OF GIBRALTAR SPANISH RSB FISHERY STRAIT OF GIBRALTAR SPANISH RSB FISHERY Available information: Landings since the start of the fishery Fishing boats Fishing effort :The effort unit chosen (number of sales) cannot be too appropriate as do not consider the missing effort. Thus, in the recent years this missing effort increases substantially (fishing vessels with no catches and precisely why with no sale sheet to be recorded). Landings length distribution Observers on board programme (2005 – 2009) VMS information (“Cajas verdes Junta de Andalucía”) … more close to the minimum landing size in Algeciras. It is necessary to point out that species probably does not have a homogeneous geographic and bathymetric distribution related to their length. This fact could explain the different landed mean length between both ports (Tarifa and Algeciras). STRAIT OF GIBRALTAR SPANISH RSB FISHERY Tons 900 800 700 600 500 400 300 SRWG on shared demersal resources Ad hoc Scientific Working Group between Morocco and Spain on Pagellus bogaraveo in the Gibraltar Strait area Málaga (Spain), 22 July 2010 Fishing effort (Nº sales) 200 100 0 12000 10000 8000 6000 4000 2000 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Nº sales LPUE 2004 2005 2006 2007 2008 2009 120 100 80 60 40 20 LPUE Spanish information about the red seabream (Pagellus bogaraveo) fishery in the Strait of Gibraltar Region Juan Gil Herrera 0 0 Part II: Status revision according stock assessments STRAIT OF GIBRALTAR SPANISH RSB FISHERY EUROPEAN AND LOCAL MANGEMENT FRAME ICES WGDEEP EU Regulation Fishing effort [Reg. EC since 2002] Biannual TACs [Reg. EC since 2002] The median value in the last years remains under the mean in every case and…. Spanish and Andalusian Regulations for the Strait of Gibraltar RSB fishery (Fishing plans since 1999) Fishing boat list Close season Minimum landing size (33 cm) Hook size and hooks number limitation 33
ASSESSMENT METHODOLOGIES USED AT ICES WGDEEP LAST STOCK ASSESSMENT AND 2010 ICES ADVICE DIRECT METHODS No surveys INDIRECT METHODS Production models Not standardized LPUE and missing effort problem Year ICES Predicted catch TAC ICES landings Advice corresp. to advice EU Subarea IX Subarea IX 2003 1 - 1.271 0.47 1 2004 - 1.271 0.48 1 2005 - 1.271 0.49 1 2006 - 1.271 0.54 2007 - 1.080 0.59 1 2008 - 1.080 0.60 1 2009 Constrain catches to average catches 2003-07 0.5 0.918 0.72 2010 Biennial 0.5 0.780 2011 Same advice as previously 0.5 Weights in ‘0 00 t. 1 Advice prior to 2008 included for all areas Analytical models Separable VPA ICES advises that “catches in 2011 should be less than 500 t which is a reduction from 2008 - 2009 landings” (ICES ADGDEEP 2010). ASSESSMENT METHODOLOGIES USED AT ICES WGDEEP SRWG on shared demersal resources Ad hoc Scientific Working Group between Morocco and Spain on Pagellus bogaraveo in the Gibraltar Strait area Málaga (Spain), 22 July 2010 Spanish information about the red seabream (Pagellus bogaraveo) fishery in the Strait of Gibraltar Region Juan Gil Herrera M 2 M 3 M 4 M 5 Without tuning fleet information, Separable VPA could be used in order to define terminal F of the analysis (Gil et al., 2009) Part III: Critical areas LAST STOCK ASSESSMENT AND 2010 ICES ADVICE STRAIT OF GIBRALTAR SPANISH RSB FISHERY On the biology: Ageing: Consistency of the age readings between the readers and different areas (Strait of Gibraltar and Azores) should be checked. Therefore, otolith exchange between Spain and Portugal that are currently ageing this species is recommended to estimate precision and relative/absolute bias in the age estimations from age readers from different laboratories. As in previous years, the assessment attempt was considered as an exercise due to its related uncertainty and its results was examined only in qualitative terms. Anyway, based on the assessments attempts, the recent increasing trend of landings in the fishery may be considered unsustainable. Despite the uncertainty of the assessment exercise, fishing mortality rates should be reduced until reliable assessments prove the fishery sustainability. Reproductive pattern: Role of hermaphroditism in the catch composition Where are the potential spawning grounds What about the earlier life stages Feeding biology: Relationship with the special features (productivity) of the Strait of Gibraltar. Differences between life stages and within ages Which are the potential predators Besides, from an ecosystem point of view, stock dynamics of Pagellus bogaraveo should be affected by environmental variability. This is a benthopelagic species, feeding mainly in the water column and changes on the water mass structure or on the distribution of the preferential prey species may introduce severe catchability problems. Also, fisheries should be considered one of the sources of man impact in the ocean. Despite hooks and lines have been considered less impact gears in the marine environment studies about its effects on the seabed will be welcome. 34
Page 2 and 3: CopeMed II - ArtFiMed Technical Doc
Page 4 and 5: Preface The CopeMed II Project on C
Page 6 and 7: Preparation of this document This d
Page 8 and 9: 1. Opening of the meeting and desig
Page 10 and 11: For the collection of data on catch
Page 12 and 13: The Spanish red seabream fishing fl
Page 14 and 15: of the series. ICES recommended cat
Page 16 and 17: Table 1. Comparison of the data/par
Page 18 and 19: 11.Conclusions and recommendations
Page 20 and 21: Annex I. List of participants INRH
Page 22 and 23: Annex III. Introduction and Objecti
Page 24 and 25: of the activities of the GFCM Sub-C
Page 26 and 27: Table 3: A proposal for an updated
Page 28 and 29: Annex IV. Rapport sur l’état de
Page 30 and 31: Alors que l’engin utilisé par le
Page 32 and 33: 8.3 Indices d’abondance L’évol
Page 34 and 35: 9- Recommandations d’aménagement
Page 36 and 37: 35% 11% 7% 26% 21% Dorade rose Pagr
Page 38 and 39: j Annex VI. Report of Spain on the
Page 42 and 43: STRAIT OF GIBRALTAR SPANISH RSB FIS
Page 44 and 45: INDICE - Presentación del Sistema
Page 46 and 47: Valoración de los Recursos Pesquer
Page 48 and 49: RESULTADOS: Estimación Rendimiento
Page 50 and 51: -Consideración de nuevas posibilid
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