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Metadata: 2001-2014 Eastern Inshore Fisheries and Conservation Authority (Eastern IFCA) River Stour and Orwell cockle surveys
Abstract:
Eastern IFCA (and its predeccesor, ESFJC) have conducted stock assessment surveys of cockle (Cerastoderma edule) every two years from 2001-2009 (excluding 2005), and then annually since 2009 along both the River Stour and River Orwell, Suffolk. The aim of the surveys has been to undertake a stock assessment of the cockles to identify any potential commerical stocks.
Data holder:
Eastern Inshore Fisheries and Conservation Authority
Use constraints:
There are no access restrictions.
Other details | ||
Internal code | Internally assigned metadata identifier | 2233 |
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. | 2001-2014 Eastern Inshore Fisheries and Conservation Authority (Eastern IFCA) River Stour and Orwell cockle surveys |
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. | 096903f92e453b27aeb0f1555a46fed8 |
Resource Identifier | This is the code assigned by the data owner. | EIFCASuffolkCockles |
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 | 2015-04-07 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2015-04-07 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
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'. | unknown |
Abstract | The abstract provides a clear and brief statement of the content of the resource. | Eastern IFCA (and its predeccesor, ESFJC) have conducted stock assessment surveys of cockle (Cerastoderma edule) every two years from 2001-2009 (excluding 2005), and then annually since 2009 along both the River Stour and River Orwell, Suffolk. The aim of the surveys has been to undertake a stock assessment of the cockles to identify any potential commerical stocks. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Samples were collected at regular intervals on a predetermined grid deployed from Kent and Essex IFCA vessel, RV Tamesis over high water. Forty-four stations are surveyed along the northern bank of the River Orwell between the Orwell Bridge and Levington Creek. Seventy-four stations were surveyed in the Holbrook bay area of the River Stour. Sample stations were spaced approx. 250m apart on the grid. Up to three samples were collected from each station using a 0.1m sq day grab, then the samples were washed over 3 millimetre (mm) washing table and any cockles found are placed in labelled bags. A qualitative description of the sediment type at each station is noted. Samples of cockles are measured to the nearest mm by length and width, are separated into size classes of less than 14mm, 14 mm, 15 mm, and greater than 16 mm width, and then separated into age classes. The cockles in each group were weighted to the nearest 0.01 gram. Cockle distribution and density maps were created in MapInfo GIS. The biomass of the cockles in each river was calculated by multiplying the mean weight of the samples by the area covered. The biomass of fishable stock was determined by the mean weight of the sample having reached a width of greater than 14 mm. |
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 | NDGO0005 | |
Keyword title | data.gov.uk | |
Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine | |
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 | Inshore activities | |
Geographical coverage | ||
North #1 | The northern-most limit of the data resource in decimal degrees | 51.9557 |
East #1 | The eastern-most limit of the data resource in decimal degrees | 1.2283 |
South #1 | The southern-most limit of the data resource in decimal degrees | 51.944 |
West #1 | The western-most limit of the data resource in decimal degrees | 1.1852 |
North #2 | The northern-most limit of the data resource in decimal degrees | 52.0308 |
East #2 | The eastern-most limit of the data resource in decimal degrees | 1.261 |
South #2 | The southern-most limit of the data resource in decimal degrees | 51.9943 |
West #2 | The western-most limit of the data resource in decimal degrees | 1.1594 |
Regional sea | Southern North Sea | |
38E0 | ||
North Sea | ||
infralittoral | ||
IVc | ||
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 | Eastern Inshore Fisheries and Conservation Authority | |
Individual name | MEO Data lead | |
Position name | MEO Data Lead | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | Eastern Inshore Fisheries and Conservation Authority | |
Individual name | MEO Data lead | |
Position name | MEO Data Lead | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Eastern Inshore Fisheries and Conservation Authority | |
Individual name | MEO Data lead | |
Position name | MEO Data Lead | |
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 | Eastern Inshore Fisheries and Conservation Authority | |
Individual name | MEO Data lead | |
Position name | MEO Data Lead | |
Resource locators | ||
Locator URL | Web address (URL) that links to the resource | http://www.eastern-ifca.gov.uk/ |
Dataset constraints | ||
20 Limitations on Public Access - Access constraints | otherRestrictions | |
20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | There are no access restrictions. |
21 Conditions for Access and Use - Use limitation | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced. Charts are not to be used for navigation. |
Available data formats | ||
Data format | Format in which digital data can be provided for transfer | Database |
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. | 2015-04-07 |
Date of last revision | The most recent date that the resource was revised. | 2015-04-07 |
Date of creation | The date that the resource was created. | 2015-04-07 |
Harvest date | The date which this record has been (re)harvested from the provider. | 2024-04-21 |
Metadata date | The date when the content of this metadata record was last updated. | 2016-11-15 |
Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery metadata standard |
Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.8 |