Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds
This paper describes a qualitative model of the functioning of salmon redds (spawning areas of salmon) and its impact on mortality rates of early stages. For this, we use Qsim, a qualitative simulator, which appeared adequate for representing available qualitative knowledge of freshwater ecology experts (see Part I of this paper). Since the number of relevant variables was relatively large, it appeared necessary to decompose the model into two parts, corresponding to processes occurring at separate time-scales. A qualitative clock allows us to submit the simulation of salmon developmental stages to the calculation of accumulated daily temperatures (degree-days), according to the clock ticks and a water temperature regime set by the user. Therefore, this introduces some way of real-time dating and duration in a purely qualitative model. Simulating both sub-models, either separately or by means of alternate transitions, allows us to generate the evolutions of variables of interest, such as the mortality rates according to two factors (flow of oxygenated water and plugging of gravel interstices near the bed surface), under various scenarios.
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dig-cirad-fr-5291802023-07-03T08:34:20Z http://agritrop.cirad.fr/529180/ http://agritrop.cirad.fr/529180/ Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds. Guerrin François, Dumas Jacques. 2001. Biosystems, 59 (2) : 85-108.https://doi.org/10.1016/S0303-2647(01)00101-0 <https://doi.org/10.1016/S0303-2647(01)00101-0> Researchers Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds Guerrin, François Dumas, Jacques eng 2001 Biosystems M01 - Pêche et aquaculture - Considérations générales U10 - Informatique, mathématiques et statistiques This paper describes a qualitative model of the functioning of salmon redds (spawning areas of salmon) and its impact on mortality rates of early stages. For this, we use Qsim, a qualitative simulator, which appeared adequate for representing available qualitative knowledge of freshwater ecology experts (see Part I of this paper). Since the number of relevant variables was relatively large, it appeared necessary to decompose the model into two parts, corresponding to processes occurring at separate time-scales. A qualitative clock allows us to submit the simulation of salmon developmental stages to the calculation of accumulated daily temperatures (degree-days), according to the clock ticks and a water temperature regime set by the user. Therefore, this introduces some way of real-time dating and duration in a purely qualitative model. Simulating both sub-models, either separately or by means of alternate transitions, allows us to generate the evolutions of variables of interest, such as the mortality rates according to two factors (flow of oxygenated water and plugging of gravel interstices near the bed surface), under various scenarios. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/529180/1/529180.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/S0303-2647(01)00101-0 10.1016/S0303-2647(01)00101-0 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=188861 info:eu-repo/semantics/altIdentifier/doi/10.1016/S0303-2647(01)00101-0 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/S0303-2647(01)00101-0 |
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M01 - Pêche et aquaculture - Considérations générales U10 - Informatique, mathématiques et statistiques M01 - Pêche et aquaculture - Considérations générales U10 - Informatique, mathématiques et statistiques |
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M01 - Pêche et aquaculture - Considérations générales U10 - Informatique, mathématiques et statistiques M01 - Pêche et aquaculture - Considérations générales U10 - Informatique, mathématiques et statistiques Guerrin, François Dumas, Jacques Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds |
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This paper describes a qualitative model of the functioning of salmon redds (spawning areas of salmon) and its impact on mortality rates of early stages. For this, we use Qsim, a qualitative simulator, which appeared adequate for representing available qualitative knowledge of freshwater ecology experts (see Part I of this paper). Since the number of relevant variables was relatively large, it appeared necessary to decompose the model into two parts, corresponding to processes occurring at separate time-scales. A qualitative clock allows us to submit the simulation of salmon developmental stages to the calculation of accumulated daily temperatures (degree-days), according to the clock ticks and a water temperature regime set by the user. Therefore, this introduces some way of real-time dating and duration in a purely qualitative model. Simulating both sub-models, either separately or by means of alternate transitions, allows us to generate the evolutions of variables of interest, such as the mortality rates according to two factors (flow of oxygenated water and plugging of gravel interstices near the bed surface), under various scenarios. |
format |
article |
topic_facet |
M01 - Pêche et aquaculture - Considérations générales U10 - Informatique, mathématiques et statistiques |
author |
Guerrin, François Dumas, Jacques |
author_facet |
Guerrin, François Dumas, Jacques |
author_sort |
Guerrin, François |
title |
Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds |
title_short |
Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds |
title_full |
Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds |
title_fullStr |
Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds |
title_full_unstemmed |
Knowledge representation and qualitative simulation of salmon redd functioning. Part II : Qualitative model of redds |
title_sort |
knowledge representation and qualitative simulation of salmon redd functioning. part ii : qualitative model of redds |
url |
http://agritrop.cirad.fr/529180/ http://agritrop.cirad.fr/529180/1/529180.pdf |
work_keys_str_mv |
AT guerrinfrancois knowledgerepresentationandqualitativesimulationofsalmonreddfunctioningpartiiqualitativemodelofredds AT dumasjacques knowledgerepresentationandqualitativesimulationofsalmonreddfunctioningpartiiqualitativemodelofredds |
_version_ |
1770994336295550976 |