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Metadata: 2010 onwards, Sussex Inshore Fisheries and Conservation Authority (IFCA), Chichester Harbour, Native Oyster Ostrea edulis population monitoring
Abstract:
In June 2010 the Sussex Inshore Fisheries and Conservation Authority (IFCA), as the local inshore fisheries managers and as member of the Chichester Harbour Oyster Partnership Initiative (CHOPI), teamed up with the local Environmental Health teams of Chichester District Council and Havant Borough Council to gather information on the Native Oyster, Ostrea edulis, population in Chichester Harbour, West Sussex, UK. The Environmental Health teamâ??s sample the oysters from 4/5 sites in the Harbour on a monthly basis for designated bivalve mollusc production area classification. The Sussex IFCA partnership has resulted in additional information being collected during these routine monthly sampling trips in order to monitor relative population density and some population dynamics. The information recorded includes fishing duration, number of hauls, number of oysters below 70mm ring diameter and the number of oysters greater than 70mm ring diameter, thus allowing CPUE to be calculated. In addition, every three months (monthly from November 2013) the biological height and maximum length of each oyster caught is recorded in order to gather information on the size structure of the population. In November 2010 the CHOPI group created three brood stock areas within the Harbour by relaying 2.3 tonnes of Native oysters (all greater than 70mm ring diameter) at high density (approx 30m2). It is hoped that along with monitoring the existing oyster population in the Harbour this sampling regime will provide some indication as to the success of this relaying initiative with regards to any increase in recruitment. Breeding success was monitored through the summer of 2011. In October 2013, 1.7 tonnes of native oysters were relaid at three sites. One of the sites has been monitored monthly using an underwater video and the other two sites will be/were monitored quarterly for mortality, density and breeding success in the summer.
Data holder:
Sussex Inshore Fisheries and Conservation Authority
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Use constraints:
Commercially sensitive information. Access Restricted
Other details | ||
Internal code | Internally assigned metadata identifier | 3577 |
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. | 2010 onwards, Sussex Inshore Fisheries and Conservation Authority (IFCA), Chichester Harbour, Native Oyster Ostrea edulis population monitoring |
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. | 62f64310cee8707d9f9d5e82e266edfd |
Resource Identifier | This is the code assigned by the data owner. | SXIFCA0000001 |
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 | 2010-06-21 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2021-05-07 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 200 |
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'. | quarterly |
Abstract | The abstract provides a clear and brief statement of the content of the resource. | In June 2010 the Sussex Inshore Fisheries and Conservation Authority (IFCA), as the local inshore fisheries managers and as member of the Chichester Harbour Oyster Partnership Initiative (CHOPI), teamed up with the local Environmental Health teams of Chichester District Council and Havant Borough Council to gather information on the Native Oyster, Ostrea edulis, population in Chichester Harbour, West Sussex, UK. The Environmental Health teamâ??s sample the oysters from 4/5 sites in the Harbour on a monthly basis for designated bivalve mollusc production area classification. The Sussex IFCA partnership has resulted in additional information being collected during these routine monthly sampling trips in order to monitor relative population density and some population dynamics. The information recorded includes fishing duration, number of hauls, number of oysters below 70mm ring diameter and the number of oysters greater than 70mm ring diameter, thus allowing CPUE to be calculated. In addition, every three months (monthly from November 2013) the biological height and maximum length of each oyster caught is recorded in order to gather information on the size structure of the population. In November 2010 the CHOPI group created three brood stock areas within the Harbour by relaying 2.3 tonnes of Native oysters (all greater than 70mm ring diameter) at high density (approx 30m2). It is hoped that along with monitoring the existing oyster population in the Harbour this sampling regime will provide some indication as to the success of this relaying initiative with regards to any increase in recruitment. Breeding success was monitored through the summer of 2011. In October 2013, 1.7 tonnes of native oysters were relaid at three sites. One of the sites has been monitored monthly using an underwater video and the other two sites will be/were monitored quarterly for mortality, density and breeding success in the summer. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | During the monthly sampling a 70mm diameter ring gauge (the same gauge as used for compliance with the 70mm minimum legal size restrictions) was used to determine oysters with a diameter greater than, or less than 70mm. During the quarterly sampling the biological height and maximum length of each oyster caught was measured using callipers to the nearest millimetre. In addition those oysters near to 70mm in maximum length were tested to determine if they would pass through the 70mm oyster gauge. During the course of this monitoring scheme if the number and size of the oyster dredges has changed, these changes have been recorded. |
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 | Species distribution | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish and shellfish catch statistics | |
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 | Fisihing Activity | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 50.8454 |
East | The eastern-most limit of the data resource in decimal degrees | -0.8065 |
South | The southern-most limit of the data resource in decimal degrees | 50.7784 |
West | The western-most limit of the data resource in decimal degrees | -0.961 |
Regional sea | Eastern Channel | |
30E9 | ||
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 | Sussex Inshore Fisheries and Conservation Authority | |
Individual name | Sussex IFCA Data Manager | |
Position name | Data Manager | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | Sussex Inshore Fisheries and Conservation Authority | |
Individual name | Sussex IFCA Data Manager | |
Position name | Data Manager | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Sussex Inshore Fisheries and Conservation Authority | |
Individual name | Sussex IFCA Data Manager | |
Position name | Data Manager | |
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 | Sussex Inshore Fisheries and Conservation Authority | |
Individual name | Sussex IFCA Data Manager | |
Position name | Data Manager | |
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. | Commercially sensitive information. Access Restricted |
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. | Commercially sensitive information. Useage Restricted |
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. | 2012-08-28 |
Date of last revision | The most recent date that the resource was revised. | 2013-12-11 |
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. | 2021-05-07 |
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 |