© OpenStreetMap contributors
Description of the state of the fish and shellfish stocks of commercial importance to the Scottish fishing fleet. TACs and quotas for each stock for 2016 are described, as well as the life history and biology of the species caught. Stock assessment techniques and fisheries management decisions and processes are described and explained.
Scottish Government (Marine Scotland)
no limitations to public access
Other details | ||
Internal code | Internally assigned metadata identifier | 6205 |
Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Fish and Shellfish Stocks 2016 edition |
File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | Marine_Scotland_FishDAC_1758 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1758 |
Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2016-01-01 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2016-12-31 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 55000.00 |
Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m |
Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | Not Planned |
Abstract | The abstract provides a clear and brief statement of the content of the resource. | Description of the state of the fish and shellfish stocks of commercial importance to the Scottish fishing fleet. TACs and quotas for each stock for 2016 are described, as well as the life history and biology of the species caught. Stock assessment techniques and fisheries management decisions and processes are described and explained. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | For several stocks, international management plans and agreements exist that stipulate suitable harvest control rules (and hence exploitation rates and appropriate removals). In many cases the exploitation rates align closely with MSY principles. If these stocks also have accepted age-structured assessments based on catch and survey data, then these are used to determine the advice. Examples include North sea herring or saithe. Maximum sustainable yield (MSY) Where no agreed international management plan exists, the default ICES position for stocks with full accepted assessments is to base advice on a fishing mortality rate (known as FMSY) that is expected to generate the MSY for the participating fleets: that is, the highest possible catch that can be maintained indefinitely. Examples include the haddock stock (IIIa, IV and VIa). This approach has superseded the precautionary approach (PA), although PA biomass reference points are still in use for some stocks and PA advice is still listed. The biomass reference point is used as a ‘trigger’ - if the stock drops below this size, then F is adjusted downwards below FMSY. MSY (or, more specifically, FMSY) can be very difficult to estimate, and proxies to it are often used. It may be different in single-species and multi-species contexts, but it is generally the case that FMSY is less than the historical fishing mortality rate experienced by a stock. Hence a requirement to fish at or around FMSY usually leads to a reduction in fishing mortality, and a concomitant increase in sustainability. ‘Data-poor’ stocks For all other stocks, the form of the ICES advice is principally determined by the requirements of the advice customer, which for ICES is often the European Commission (EC). In an attempt to force member states to monitor and submit detailed data on all their fisheries, in 2011 the EC decided that only stocks with full, age-structured analytic assessments could be managed according to management plans or MSY considerations. All other stocks, including those with only (for example) research-vessel survey data, would be managed according to advice based on the following table. While the intention to improve data provision is laudable, questions need to be asked about whether a rigid approach to the type of assessments that are acceptable is appropriate. Robust assessments using different approaches also need to be considered. For now, the consequences of the consistent application of the table are that many stocks for which reasonable indicators of stock abundance exist are subject to quota cuts because these data do not fit a particular paradigm. Examples include Northern Shelf monkfish. |
Related keywords | ||
Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fisheries | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish biomass in water bodies | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish reproduction | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fishing by-catch | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Shellfish abundance and biomass in water bodies | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Shellfish reproduction | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 61.77312 |
East | The eastern-most limit of the data resource in decimal degrees | 1.977539 |
South | The southern-most limit of the data resource in decimal degrees | 54.39335 |
West | The western-most limit of the data resource in decimal degrees | -13.93066 |
Responsible organisations | ||
Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Marine Scotland | |
Phone | +44 (0)300 244 4000 | |
Delivery point | 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Resource locators | ||
Locator URL | Web address (URL) that links to the resource | https://dx.doi.org/10.7489/1758-1 |
Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | DOI:https://dx.doi.org/10.7489/1758-1 |
Dataset constraints | ||
20 Limitations on Public Access - Access constraints | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
20 Limitations on Public Access – Other constraints | Any restriction on the use of the resource such as the need to agree to certain licence conditions. | no limitations to public access |
21 Conditions for Access and Use - Use limitation | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | Open Government License (http://www.nationalarchives.gov.uk/doc/open-government-licence/) |
Version info | ||
Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2016-05-23 |
Metadata date | The date when the content of this metadata record was last updated. | 2016-05-30 |
Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata |
Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.7 |
© OpenStreetMap contributors