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| Marine Resource Fact Sheet |
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| Deepwater rose shrimp - Northern Spain, 2004 |
 | Parapenaeus longirostris - Northern Spain |
| | Owned by | General Fisheries Commission for the Mediterranean (GFCM)
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| Main Descriptors | Considered a single stock: Yes
Spatial Scale: Sub-Regional
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| Considered a single stock: A group of individuals in a species occupying a well defined spatial range independent of other stocks of the same species. It can be affected by random dispersal movements and directed migrations due to seasonal or reproductive activity. |
| Spatial Scale: Spatial scale contains a standard term such as Global, Regional (e.g. for the whole Atlantic), sub-regional (e.g. for a part of the Atlantic), national, local (for sub-national levels). |
| Considered a management unit: An aquatic resource or fishery is
declared as [Fishery] Management Unit if it is
effectively the focus for the application of selected
management methods and measures, within the broader
framework of a management system. According to the FAO
Glossary for Responsible Fishing, "a Fishery Management
Unit (FMU) is a fishery or a portion of a fishery
identified in a Fishery Management Plan (FMP) relevant
to the FMP's management objectives." FMU's may be
organised around fisheries biological, geographic,
economic, technical, social or ecological dimensions ,
and the makeup and attribute of a fishery management
unit depends mainly on the FMP's management
objectives. |
| Jurisdictional distribution: Jurisdictional qualifier (e.g.
"shared", "shared - highly migratory") of the aquatic
resource related with its spatial distribution. |
| Environmental group: Classification of the aquatic
resource according to the environmental group (e.g.
pelagic invertebrate, or demersal fish) to which the
species belong. |
| | | | | | Habitat and Biology Climatic zone: Temperate. Bottom type: Soft bottom. Depth zone: Slope. Horizontal distribution: Neritic. Vertical distribution: Demersal/benthic. Geographical Distribution Jurisdictional distribution: Straddling between High Seas and EEZ Water Area Overview Spatial Scale: Sub-Regional Northern Spain Geo References  | | Distribution of Deepwater rose shrimp - Northern Spain
| GFCM geographical sub-areas | 6: Northern Spain |
| | | | | | Other georeferences
| FAO Fishing Statistical Division Areas | 37.1.1: Balearic |
| | | | | | Intersecting Major FAO areas and LME areas |
The following area codes have been found as intersecting the distribution of Deepwater rose shrimp - Northern Spain Resource Structure Considered a single stock: Yes Exploitation Deep-water pink shrimp ( Parapenaeus longirostris) is one of the most important crustaceans
species for the trawl fisheries developed along the GFCM geographical sub-area Northern SPAIN (GSA
06). This resource is an important component of commercial landings in some ports of the Mediterranean
Northern Spain and occasionally a target specie of the trawl fleet, around 260 vessels, which operate on
the upper slope. During the last years, a sharp increase in landings was observed, starting in 1998 and
reaching the maximum value in 2000, followed by a decreased trend during the period 2001-2005. In
2005 the annual landings of this species amounts 63 tons in the whole area, which it has been the lowest
value of the historical series. Assessment Data The state of exploitation was assessed for the period 1992-2005 by means of a LCA and yield-per-recruit
(Y/R) analysis (VIT program; Lleonart and Salat, 1992) on the mean pseudo-cohort 2001-2005 for the
GFCM geographical sub-area Northern Spain (GSA-06). In addiction, a VPA Separable, tunned with
standardised CPUE from commercial fleet and abundance indices from two trawl surveys, was carried out
applying the Extended Survivor Analysis (XSA) method (Lowestoft program; Darby and Flatman, 1994)
over the period 2001-2005. Both methods were performed from size composition of trawl catches
(obtained from on board and on port monthly sampling) and official landings, transforming length data to
age data by slicing. Available CPUE data series, both of commercial fisheries, from Santa Pola fleet, and
scientific surveys (MEDITS – LEDER) were used. Assessment Model LCA and yield-per-recruit (Y/R) analysis (VIT program;
Lleonart and Salat, 1992). In addiction, a VPA Separable, tunned with standardised CPUE
from commercial fleet and abundance indices from two trawl surveys, was carried out
applying the Extended Survivor Analysis (XSA) method (Lowestoft program; Darby and
Flatman, 1994) over the period 2001-2005. Overall Assessment Results The results show a decreasing trend, both in landings and total biomass of the stock, along the studied period. The SSB-R relationship also shows a decreasing trend in both components. Fishing mortality
(Fbar) increases in the last year. It can be concluded that the resource is seriously over-exploited, with a
clear risk of recruitment over-exploitation. On the contrary, the results of the Y/R analysis show a scheme
not so close to the overexploitation, as in others short-lived species occurs, such as the deep-water shrimp
Aristeus antennatus.
In the GSA 06 area, this resource is characterized by high temporal variability, due probably to both
biotic and abiotic factors. However trends diminish heavily: currents indicators represent only a 10% of
the values observed five years ago. Scientific Advice This is a preliminary assessment and the
results of the various analyses are somehow in contradiction. The fact that the biomass
(through VPA assessments) is seriously declining should be considered an important
warning signal, but for this year there is no specific recommendation. It would be in any
case unwise to let the effort increase. Biological State and Trend Exploitation state: Fully exploited Decreasing biomass trend, resource fully exploited probably close to overexploitation. Source of information “Preliminary Assessment of Deep-water pink shrimp Parapenaeus longirostris from the trawl fishery off the geographical sub-area Northern Spain GSA - 6. In: Report of the eight session of the Sub-Commitee on Stock Assessment (SCSA)” . J. L. Pérez-Gil, M. García-Rodriguez, A. Fernández, and A. Esteban. FAO-GFCM Rome, Italy, 11-14 September 2006 FAO  . |
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