Member State report / Art9 / 2012 / D3 / Greece / Mediterranean: Adriatic Sea
| Report type | Member State report to Commission |
| MSFD Article | Art. 9 Determination of GES (and Art. 17 updates) |
| Report due | 2012-10-15 |
| GES Descriptor | D3 Commercial fish and shellfish |
| Member State | Greece |
| Region/subregion | Mediterranean: Adriatic Sea |
| Reported by | APC S.A. |
| Report date | 2012-10-15 |
| Report access | MADGR_MSFD9GES_20130430.xml |
GES component |
D3
|
3.1 Level of pressure of the fishing activity |
3.1.1 Fishing mortality |
3.1.2 Fish catch/biomass ratio |
3.2 Reproductive capacity of the stock |
3.2.1 Spawning stock biomass |
3.2.2 Biomass indices |
3.3 Population age and size distribution |
3.3.1 Proportion of larger fish |
3.3.3 Fish length distribution |
3.3.4 Fish size at sexual maturation |
|---|---|---|---|---|---|---|---|---|---|---|---|
Method used |
MAD-EL-MS-AD: For descriptors 3, 5, 6, 8 and 9 it is attempted to approach GES quantitatively using environmental thresholds/limits to describe the desired state of GES. For descriptors 1, 2, 4,7 and 10 a qualitative description of what GES will be like is provided. |
MAD-EL-MS-AD: For descriptors 3, 5, 6, 8 and 9 it is attempted to approach GES quantitatively using environmental thresholds/limits to describe the desired state of GES. For descriptors 1, 2, 4,7 and 10 a qualitative description of what GES will be like is provided. |
MAD-EL-MS-AD: For descriptors 3, 5, 6, 8 and 9 it is attempted to approach GES quantitatively using environmental thresholds/limits to describe the desired state of GES. For descriptors 1, 2, 4,7 and 10 a qualitative description of what GES will be like is provided. |
||||||||
Marine reporting units |
|
|
|
|
|
|
|
|
|
|
|
Feature |
|
|
|
||||||||
Criterion/indicator |
D3 |
3.1 |
3.1.1 |
3.1.2 |
3.2 |
3.2.1 |
3.2.2 |
3.3 |
3.3.1 |
3.3.3 |
3.3.4 |
GES description |
Indexes for the level of fishing pressure and the stock biomass have been calculated for certain species that are main targets or are frequently caught in the bottom trawl fishery. Estimates are based on fisheries and survey data. |
GES evaluation is based on the fishing mortality indexes that have been calculated for certain species that are main targets or are frequently caught in the bottom trawl fishery and purse-seine fishery.
Estimates of F/Fmsy ratios for the main target species of the bottom trawl fishery have been considered as fishing mortality proxies and consequently as indicators of the level of fishing pressure. Also, Estimates of fishing over total mortality (exploitation rate, E) for the main target species of the purse-seine fishery have been considered as fishing mortality proxies and consequently as indicators of the level of fishing pressure. |
GES evaluation is based on biomass indicators that have been calculated for certain species that are main targets or are frequently caught in the bottom trawl fishery. As SSB estimates are not available the ratio of total biomass over Bmsy has been used as proxy for SSB trends.
SSB estimates have been obtained for a series of years through the analysis of fisheries data but not thresholds have been set due to lack of a stock-recruitment relationship. |
||||||||
Threshold values |
|
|
|||||||||
Threshold value unit |
|||||||||||
Proportion of area to achieve threshold value |
|||||||||||
Reference point type |
LimitReferencePoint |
LimitReferencePoint |
|||||||||
Baseline |
Threshold values are based on maximum sustainable yield (MSY) estimates obtained from the analysis of data over the period 1990-2009.
Threshold values for E have been set empirically based on literature information |
Threshold values are based on maximum sustainable yield (MSY) estimates obtained from the analysis of data over the period 1990-2009 |
|||||||||
Assessment method |
Non-equilibrium surplus (logistic) production modelling, Extended Survivors Analysis (XSA) |
Non-equilibrium surplus (logistic) production modelling
|
|||||||||
Development status |
Fully operational
|
Fully operational
|