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EM: Linkage between redfish and cold water coral, Norway (essential fish habitat model) (EM-319)
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EM Identity and Description
EM Identification
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EM ID
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EM-319 |
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EM Short Name
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Redfish and cold water coral (EFH), Norway |
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EM Full Name
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Linkage between redfish and cold water coral, Norway (essential fish habitat model) |
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EM Source or Collection
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None |
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EM Source Document ID
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259 |
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Document Author
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Foley N.S., Kahui V.K., Armstrong C.W., Van Rensburg T.M |
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Document Year
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2010 |
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Document Title
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Estimating linkages between redfish and cold water coral on the Norwegian coast |
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Document Status
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Peer reviewed and published |
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Comments on Status
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Published journal manuscript |
Software and Access
| Not applicable | |
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Contact Name
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Naomi S. Foley |
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Contact Address
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Dept. of Economics and Management, Univeristy of Tromso, Norway |
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Contact Email
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naomifoley@gmail.com |
EM Description
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Summary Description
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ABSTRACT: "…This paper applies the production function approach to estimate the link between cold water corals and redfish in Norway. Both the carrying capacity and growth rate of redfish are found to be functions of cold water coral habitat and thus cold water corals can be considered an essential fish habitat…The essential habitat model shows the best fit to the data…" AUTHOR'S DESCRIPTION: "…the EFH model presented by Barbier and Strand (1998), in which the habitat is considered essential to the stock; i.e., if the habitat declines to zero the fish stock will perish…based on the Gordon-Schaefer model, which is a single-species biomass model, where effort is the control variable and fish stock is the state variable. In the case of habitat-fisheries interactions, such as in our case, a second state variable is introduced, the habitat (CWC)…Scientists have stimated that 30-50% of CWC habitat has been damaged (Fossa, Mortensen, and Furevik 2002. Working within these bounds, we empirically estimate the relationship between CWC as a habitat and a fish stock..." |
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Specific Policy or Decision Context Cited
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None identified |
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Biophysical Context
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Continental slope |
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EM Scenario Drivers
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Estimated impact differences due to fishing effort; minimum (30%), and maximum (50%) degredation (reduction) in coral reef area. |
EM Relationship to Other EMs or Applications
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Method Only, Application of Method or Model Run
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Method + Application |
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New or Pre-existing EM?
em.detail.newOrExistHelp
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Application of existing model |
Related EMs (for example, other versions or derivations of this EM) described in ESML
em.detail.relatedEmHelp
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Document ID for related EM
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Doc-227 |
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EM ID for related EM
em.detail.relatedEmEmIdHelp
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EM-106 |
EM Modeling Approach
EM Relationship to Time
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EM Temporal Extent
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1986-2002 |
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EM Time Dependence
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time-stationary |
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EM Time Reference (Future/Past)
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Not applicable |
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EM Time Continuity
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Not applicable |
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EM Temporal Grain Size Value
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Not applicable |
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EM Temporal Grain Size Unit
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Not applicable |
EM Spatial Extent
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Bounding Type
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Physiographic or ecological |
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Spatial Extent Name
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Norwegian Sea (ICES areas I and II) |
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Spatial Extent Area (Magnitude)
em.detail.extentAreaHelp
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1000-10,000 km^2. |
Spatial Distribution of Computations
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EM Spatial Distribution
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spatially lumped (in all cases) |
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Spatial Grain Type
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Not applicable |
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Spatial Grain Size
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Not applicable |
EM Structure and Computation Approach
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EM Computational Approach
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Analytic |
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EM Determinism
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deterministic |
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Statistical Estimation of EM
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Model Checking Procedures Used
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Model Calibration Reported?
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Yes |
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Model Goodness of Fit Reported?
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Yes |
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Goodness of Fit (metric| value | unit)
em.detail.goodnessFitValuesHelp
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Model Operational Validation Reported?
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No |
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Model Uncertainty Analysis Reported?
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No |
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Model Sensitivity Analysis Reported?
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Yes |
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Model Sensitivity Analysis Include Interactions?
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Yes |
EM Locations, Environments, Ecology
Location of EM Application
Terrestrial location (Classification hierarchy: Continent > Country > U.S. State [United States only])
em.detail.relationToSpaceTerrestrialHelp
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| None |
Marine location (Classification hierarchy: Realm > Region > Province > Ecoregion)
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Centroid Lat/Long (Decimal Degree)
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Centroid Latitude
em.detail.ddLatHelp
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70 |
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Centroid Longitude
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10 |
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Centroid Datum
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WGS84 |
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Centroid Coordinates Status
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Estimated |
Environments and Scales Modeled
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EM Environmental Sub-Class
em.detail.emEnvironmentalSubclassHelp
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Near Coastal Marine and Estuarine | Open Ocean and Seas |
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Specific Environment Type
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cold water coral reefs |
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EM Ecological Scale
em.detail.ecoScaleHelp
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Ecological scale is finer than that of the Environmental Sub-class |
Scale and taxa of organisms modeled
Scale of differentiation of organisms modeled
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EM Organismal Scale
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Guild or Assemblage |
Taxonomic level and name of organisms or groups identified
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EnviroAtlas URL
em.detail.enviroAtlasURLHelp
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| Big game hunting recreation demand |
EM Ecosystem Goods and Services (EGS) potentially modeled, by classification system
CICES v 4.3 - Common International Classification of Ecosystem Services (Section > Division > Group > Class)
em.detail.cicesHelp
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(Environmental Subclass > Ecological End-Product (EEP) > EEP Subclass > EEP Modifier)
fegs2Help
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EM Variable Names (and Units)
Predictor
em.detail.variablesPredictorHelp
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Driving Variables (and Units)
view details (6 variables)
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Constant or Factor Variables (and Units)
view details (2 variables)
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Intermediate
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Intermediate (Computed) Variables (and Units)
view details (2 variables)
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Response
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Observed Response Variables (and Units)
view details (1 variable)
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Computed Response Variables (and Units)
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None |