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Metadata: AquaSmart Aquaculture Suitability Layers for Penang, Malaysia
Abstract:
The AquaSmart project aim was to identify potential areas of aquaculture development around the island of Penang, Malaysia for 5 different species; ogonori seaweed (Gracilaria lichenodes), blood cockle (*Tegillarca granosa), slipper oyster (Crassostrea iredalei*), tropical oyster ( Crassostrea belcheri), and barramundi (Lates calcarifer). To achieve this aquaculture suitability layers were generated that represent the areas that have the best range of environmental conditions for these species when grown under aquaculture (farming) conditions. These spatial data layers were generated in August 2024, and refined in September 2024 following comments from the 2nd AquaSmart workshop in Malaysia. This data comprises the spatial data habitat suitability layers for the 5 species as GeoTiff raster data, along with a georeferenced layered pdf map which serves to enable non-specialist users to be able to understand the conflicts and potential area of aquaculture development in the region.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 9723 |
| 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. | AquaSmart Aquaculture Suitability Layers for Penang, Malaysia |
| 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. | CEFAS589b258e-a1cc-4a70-90e8-4776989754b9 |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS22090 |
| 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 | 2023-10-01 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2024-10-31 |
| 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'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | The AquaSmart project aim was to identify potential areas of aquaculture development around the island of Penang, Malaysia for 5 different species; ogonori seaweed (Gracilaria lichenodes), blood cockle (*Tegillarca granosa), slipper oyster (Crassostrea iredalei*), tropical oyster ( Crassostrea belcheri), and barramundi (Lates calcarifer). To achieve this aquaculture suitability layers were generated that represent the areas that have the best range of environmental conditions for these species when grown under aquaculture (farming) conditions. These spatial data layers were generated in August 2024, and refined in September 2024 following comments from the 2nd AquaSmart workshop in Malaysia. This data comprises the spatial data habitat suitability layers for the 5 species as GeoTiff raster data, along with a georeferenced layered pdf map which serves to enable non-specialist users to be able to understand the conflicts and potential area of aquaculture development in the region. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Suitability was assessed by classifying the environmental variables as either unsuitable (growth unlikely), suboptimal (limited growth) or optimal (ideal growth conditions) and overlaying the classified layers to generate a suitability score of 0 (one or more environmental variables were unsuitable), or a value between 1 (all environmental variables were suboptimal for growth) and 2 (all environmental variables were optimal for growth). Environmental data was taken from data sets from 01/01/2018 to 31/12/2022 and 4 seasonal time periods were used in the analysis; North-East monsoon (1st Dec to 31st Mar); inter-monsoon period 1 (1st Apr to 31st May); South-west monsoon (1st Jun to 30th Sep); and inter-monsoon period 2 (1st Oct to 30th Nov). All processing was performed in R (version 4.1.2); prior to the processing, the source data layers were resampled to a grid with a resolution of 0.01° using ArcGIS Pro to ensure alignment and consistency of gridded data. The environmental 3rd party data layers used are detailed in the attached supplementary information, along with the thresholds for each species. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Aquaculture |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Aquatic environment | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Mariculture | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Agricultural and aquaculture facilities | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Unknown | |
| 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 | data.gov.uk | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 10 |
| East | The eastern-most limit of the data resource in decimal degrees | 110 |
| West | The western-most limit of the data resource in decimal degrees | 100 |
| 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 | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| 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 | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| data.manager@cefas.co.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/22090 |
| Locator name | Name of the web resource | Cefas Data Portal |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | noLimitations | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ | |
| 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. | 2025-01-14 |
| Date of last revision | The most recent date that the resource was revised. | 2025-08-13 |
| Date of creation | The date that the resource was created. | 2024-12-11 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2025-08-13 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.1 |