Juan Gil HerreraInstituto Español de Oceanografía – C.O. de Cádiz

DEEPFISHMAN Project / Case Study 3a:

Fisheries for red (blackspot) seabream in the Strait of Gibraltar (Sub-area IX) and the Bay of

Biscay (Sub-area VIII and also VI and VII).

THE SPECIES

Taxonomy:

 Superclass GNATHOSTOMATA Class ACTINOPTERYGII Subclass NEOPTTERYGII Division TELEOSTEI Subdivision EUTELOSTEI Superorder ACANTHOPTERYGII Order PERCIFORMES

Family SPARIDAE Genus Pagellus (Valenciennes, 1830)

VORAZ: Pagellus bogaraveo (Brünnich, 1768)

 

 

Inshore waters above various types of bottom (rocks, sand, mud) to 400 m (Mediterranean) and 700 m (Atlantic); young near the coast, adults on the continental slope specially over muddy bottoms. Omnivorous, but feed mainly on crustaceans, mollusks, worms and small fish. Protandric hermaphrodites. Adults move towards the coast up to the edge of the continental shelf to spawn from January to June. Important foodfish: marketed mainly fresh.Distribution: Eastern Atlantic (Norway, Strait of Gibraltar to Cape Blanc in Mauritania, Madeira, Canary Islands) and western Mediterranean (rare beyond the Sicilian Strait).

STUDY AREA

Strait of Gibraltar: Artisanal longline fishery targeted red seabream has been developed along the Strait of Gibraltar area. Actually this fishery covers almost the 70 % of the landings for the species in the Subarea IX.

Bay of Biscay: Very important catches in the past. Currently the stock is seriously depleted and catches may be consider bycatch.

123

456

789

1011

1213

14151617 18

19202122232425

26272829

3031

32

3334 353637

383940 41

4243

-6.60 -6.40 -6.20 -6.00 -5.80 -5.60 -5.40 -5.20 -5.00 -4.80 -4.60

35.60

35.80

36.00

36.20

36.40

36.60

500 m

Tarifa

Cádiz

Algeciras

Gulf of Cádiz

Alboran Sea

SPAIN

MOROCCO

Tanger

Tetuán

Barbate

100 m

300 m

30 m

100 m

300 m

500 m

30 m

100 m

300 m

500 m

300 m

100 m

300 m

Estepona

Estrecho de Gibraltar

Ceuta

La Línea

Fuengirola

Conil

STRAIT OF GIBRALTAR FISHERY (AND MARKETING)

Tarifa Algeciras Conil

Main ports Commercial cat. Burro Tamaño Mediano Pequeño

850 a 1.300 grs.

> 1.300 grs.

550 a 850 grs.350 a 550 grs.

EUROPEAN AND LOCAL FRAME

ICES WGDEEP First analytical aseessment (VPA sep) in 2006 from the Strait of Gibraltar fishery data

EU Regulation Fishing effort [Reg. EC since 2002]

Biannual TACs [Reg. EC since 2002]

Spanish and Andalusian Regulations for the Strait of Gibraltar fishery (Fishing plans since 1999)

Fishing boat list

Close season

Minimum landing size (33 cm)

Hook size and hooks number limitation

Historical development of the fisheries, including catches and fleet.

- Almost the whole of this point are now available, from ICES WGDEEP Reports. Thus, these topics would be available when it needed (6 months in the proposal).

Biological parameters of the target species with up to date description of the current knowledge of their life history pattern, stock structure and status.

- Knowledge of the biological parameters and the life history are available in differents Research documents. This information must be compiled for the final report.- ICES Considerd 3 different component for this species, but this separation doesn´t pre-suppose 3 different stocks (?), only offers the better way to record the available information.- The next stock status information will be available in the 2010 ICES WGDEEP meeting.

• Review of assessment method used so far.

- The review of the assessment methods will be carried out in a benchmark assessment group next year, previous to the 2010 ICES WGDEEP meeting.

• Inventory of the fisheries, biological, biodiversity and socio-economic data currently available for management and monitoring purposes.

- These data aren´t fully available and should be compiled by the Project. - Biodiversity data should be extracted from scientific surveys carried out in the

areas.- The socio-economic data will be compile in colaboration with the Fishermen

brotherhoods. These information will be limited and probably subject to a confidentiality restriction.

- These information must be available for the case study final report (12 months in the proposal).

• Review of known and likely impact of the fishery on deep-water biodiversity.

- Difficult to address: only bycatch data.

• Review of current and historical management and monitoring procedures. SWOT (Strength and Weaknesses, Opportunities and Threats) and gap analysis of past and present scientific projects and data collection programmes in terms of fulfilling the data requirements for adequate management and monitoring regimes.

The review must be available in the case study final report (12 months in the proposal).The rest of this point should be DEEPFISHMAN output (from several work packages).

Topic Data Red seabream, Strait of Gibraltar Red seabream, Bay of Biscay

History

Catch R** (Since 1983 onwards) R** (1900-2008)

Effort R* (Since 1983 onwards) and

C** (VMS)

C*

Fleet R** (Since 1999) C*

Other

Appendix 1: Data available for Case Study 3a

Topic DataRed seabream,

Strait of GibraltarRed seabream, Bay of Biscay

Biology

Life cycle R** R**

B. parameters R** R*

Stock structure R* (or NA?) R* (or NA?)

Species ecol. R* (Feeding) R*

Biodiversity

Bycatch R** C*

Benthos NA (DEEPER?) NA

VMEs NA NA

Fishing impacts NA NA

Ecosys. Funct. NA NA

Topic DataRed seabream,

Strait of GibraltarRed seabream, Bay of

Biscay

Economy

Fish prices C** C**

Fishing costs NA? NA

Investment NA? NA

Other

Social

Nb of companies

C* C*

On-board employ.

C* C*

Land based employ.

NA? NA

Other

Topic DataRed seabream,

Strait of GibraltarRed seabream, Bay of Biscay

Assess. Method and

data

Method used R* R*

Length distr R** NA

Data/c_at_age R*

CPUEs R* C*

Survey data NA C*

Others

Management

Procedure C* C*

Regulation C* C*

Impact on fleet C* C*

Other