Fisheries and Resources Monitoring System

EspañolFrançais
Blackspot seabream - Northern and Southern Alboran Sea
Fact Sheet Title  Fact Sheet
Stock status report 2021
Blackspot seabream - Northern and Southern Alboran Sea
Fact Sheet Citation  
Pagellus bogaraveo - Northern and Southern Alboran Sea (GSAs 1, 3)
Owned byGeneral Fisheries Commission for the Mediterranean (GFCM) – ownership
Monitoring Range Min2010.
ident Blockident Blockdisplay tree map
 
Species List:
Species Ref: en - Blackspot(=red) seabream, fr - Dorade rose, es - Besugo, ar - مرجان وردي, zh - 黑斑小鲷, ru - Пагель пятнистый

Fishery Indicators
Production: Landed Volume
ident Block Blackspot seabream - Northern and Southern Alboran Sea
Aq Res
Biological Stock: No         Value: Sub-Regional
Reference year: 2019
 
 
Aq Res State Trend
Aq Res State Trend
Aq Res State Trend Aq Res State Trend
Aq Res State TrendIn overexploitation (F/Fref = 1.88)Not applicable
Aq Res State TrendOverexploited (B/Blimit = 0.98)Not applicable
Aq Res State Trend
Aq Res State TrendOverfished

In overexploitation and the stock size is overexploited.
[The GFCM methodology to provide stock status and management advice is described in the Appendix F of the Sixteenth Session of the Scientific Advisory Committee Report. See the Bibliography section.]
Habitat Bio
Climatic Zone: Temperate.   Bottom Type: Soft bottom; Hard bottom.   Depth Zone: Shelf (50 m - 200 m); Slope (200 m - 1000 m).   Horizontal Dist: Neritic.   Vertical Dist: Demersal/Benthic.  

Water Area Overview
Spatial Scale: Sub-Regional

Water Area Overview
Aq Res Struct
Biological Stock: No


Stock assessment in the GFCM area of application is often conducted by management units, based on GSAs. This method does not ensure that the whole stock is assessed, since stocks may cover several different management units. In some cases, when there is scientific evidence of a stock spreading through different GSAs, as well as information on species from different GSAs, existing information is combined across GSAs. This is then defined as a “joint stock assessment of a shared stock”. The GFCM recommends that when scientific evidence of shared stocks exists, joint stock assessments should be attempted. A number of activities aimed at achieving a better definition of stock boundaries are currently being conducted at the GFCM level. [The State of Mediterranean and Black Sea Fisheries, 2016]
Exploit
 

This species is one of the most important commercial demersal species in the Strait of Gibraltar area. Discards might be considered negligible. However, there is not much information available on the stock structure of blackspot seabream in this narrow site. The Spanish fishery targeting blackspot seabream has been developing along the Strait of Gibraltar since the earliest 1980s. It is almost a mono-specific fishery, with one clear target species representing 74 percent from the total landed species, which constitutes a metier by itself. The voracera, a local mechanized hook-line baited with sardine, is the gear used by the fleet from the Tarifa and Algeciras ports in Spain. The most important Moroccan fleets targeting blackspot seabream (among other species) are the longliners mainly based at the port of Tangier and the artisanal fleet of the Strait of Gibraltar area. The fishery is carried out at 200-700 m depth and the gear used is the longline known as well as voracera. The Moroccan fishery is considered multi-specific. A consistent part of landings (even from Morocco) is sold on the Spanish market.
Fishery Indicators
TypeMeasureValueUnitTime period
ProductionLanded Volume 101tonnes1983
Landed Volume 166tonnes1984
Landed Volume 196tonnes1985
Landed Volume 225tonnes1986
Landed Volume 296tonnes1987
Landed Volume 319tonnes1988
Landed Volume 416tonnes1989
Landed Volume 428tonnes1990
Landed Volume 423tonnes1991
Landed Volume 631tonnes1992
Landed Volume 765tonnes1993
Landed Volume 854tonnes1994
Landed Volume 625tonnes1995
Landed Volume 769tonnes1996
Landed Volume 808tonnes1997
Landed Volume 534tonnes1998
Landed Volume 281tonnes1999
Landed Volume 305tonnes2000
Landed Volume 253tonnes2001
Landed Volume 198tonnes2002
Landed Volume 232tonnes2003
Landed Volume 271tonnes2004
Landed Volume 367tonnes2005
Landed Volume 416tonnes2006
Landed Volume 446tonnes2007
Landed Volume 488tonnes2008
Landed Volume 669tonnes2009
Landed Volume 507tonnes2010
Landed Volume 388tonnes2011
Landed Volume 261tonnes2012
Landed Volume 173tonnes2013
Landed Volume 269tonnes2014
Landed Volume 392tonnes2015
Landed Volume 261tonnes2016
Landed Volume 233tonnes2017
Landed Volume 83tonnes2018
Landed Volume 137tonnes2019
Bio Assess
 
Data

Landings, nominal fishing effort and length composition come from Spanish and Moroccan voracera fleets, when available. Biological parameters (sex ratio) come from Spain and Morocco sampling programmes while ageing comes from the Spanish National Data Collection Programme. Standardized CPUEs from Spain and Morocco have been used as biomass index since 2009. M scalar has a value of 0.2 and fix length-weight relationship (a = 3.14 and b = 0.0087, respectively). Model length range was from 18 cm to 62 cm and from ages 3 to 17. Every likelihood component weight was estimated using the iterative re-weighting function.
Assess Models
Type:  Others
Gadget

Globally applicable area-disaggregated general ecosystem toolbox (gadget) model using Rgadget package.
Sci Advice

Reduce fishing mortality; STF available.
Sources
 
FAO. 2021. General Fisheries Commission for the Mediterranean (GFCM). Report of the twenty-second session of the Scientific Advisory Committee on Fisheries, online, 22–25 June 2021. FAO Fisheries and Aquaculture Report No. 1347. Rome. Click to openhttps://www.fao.org/3/cb7622en/cb7622en.pdf
Report of the Working Group on Stock Assessment of Demersal Species (WGSAD). Online, 18–23 January 2021. Click to openhttps://www.fao.org/gfcm/technical-meetings/detail/en/c/1412431/
GFCM Stock Assessment Results (STAR) for blackspot seabream in GSAs 1, 3 (reporting year: 2021). Click to openhttps://gfcm.sharepoint.com/EG/_layouts/15/download.aspx?share=ESR83j--hbRFi31esq2a4gsB_GvXfkw3PfwyH3ZamtSA-g
Bibliography
 
FAO. 2020. The State of Mediterranean and Black Sea Fisheries 2020. General Fisheries Commission for the Mediterranean. Rome. Click to openhttps://www.fao.org/3/cb2427en/cb2427en.pdf
FAO. 2016. The State of Mediterranean and Black Sea Fisheries. General Fisheries Commission for the Mediterranean. Rome, Italy. Click to openhttps://www.fao.org/3/i5496e/i5496e.pdf
FAO General Fisheries Commission for the Mediterranean/Commission générale des pêches pour la Méditerranée. Report of the sixteenth session of the Scientific Advisory Committee. St. Julian’s, Malta, 17–20 March 2014/Rapport de la seizième session du Comité scientifique consultatif. Saint Julien, Malte, Malte, 17-20 mars 2014. FAO Fisheries and Aquaculture Report/FAO Rapport sur les pêches et l’aquaculture. No. R1102. Rome. 2015. 250 pp. Click to openhttps://www.fao.org/3/i4381b/i4381b.pdf
General Fisheries Commission for the Mediterranean (GFCM) Stock Assessment Results (STAR). Click to openhttps://www.fao.org/gfcm/data/star/en/
powered by FIGIS  © FAO, 2024
Powered by FIGIS
crawl