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Enregistrement W2746381337

Assessing the Sampling Design of the Community Aquatic Monitoring Program (CAMP)

2017· dissertation· en· W2746381337 sur OpenAlexfundaboutno aff
Jessica Kidd

Notice bibliographique

RevueUWSpace (University of Waterloo) · 2017
Typedissertation
Langueen
DomaineEnvironmental Science
ThématiqueFish Ecology and Management Studies
Établissements canadiensnon disponible
Organismes subventionnairesFisheries and Oceans Canada
Mots-clésSampling (signal processing)Sampling designEnvironmental scienceComputer scienceEngineeringMedicineTelecommunicationsEnvironmental health
DOInon disponible

Résumé

récupéré en direct d'OpenAlex

The Community Aquatic Monitoring Program (CAMP) is a community based monitoring program that involves local stakeholders to monitor estuaries and bays in the southern Gulf of St. Lawrence (sGSL). Implemented in 2003, CAMP continues to be administered by Fisheries and Oceans Canada (DFO) in collaboration with the Southern Gulf of St. Lawrence Coalition on Sustainability (Coalition-SGSL). Data are collected annually from up to 36 sites, and include counts of nearshore fish, shrimp, and crabs (i.e., nekton) along with measures of aquatic vegetation, water quality and sediment. The CAMP dataset has potential to inform decision-makers on the relationship between the health of an estuary and its nekton assemblage. However, concerns have been raised regarding the CAMP station selection method, as the majority of station locations was selected to provide easy road access for volunteers. Also, a standard number of six stations was established, regardless of estuary size, to allow for community groups to complete each sampling event within one day. The objective of this study was to assess the ability of CAMP to provide a measure of littoral nekton that represents the overall littoral nekton community of the estuary. The adequacy of the CAMP sampling design was tested by comparing it to a sampling program that applied a stratified random design. A subset of ten estuaries that are monitored by CAMP were selected. Twelve stations were sampled within each estuary with six stations located where CAMP samples, and another six stations randomly located and stratified among the upper, middle, and lower estuary. Differences between the nekton community data were assessed using a cluster analysis, non-metric Multidimensional Scaling (nMDS) ordination, permutational MANOVA (PERMANOVA) and a test of homogeneity of dispersions (PERMDISP). The adequacy of six sample stations was tested by comparing the number of species detected by both sampling designs, and then combining the datasets to predict how many stations would be required to detect all species. The combined dataset was analysed using a one-way PERMANOVA to determine if having nekton assemblage data from more stations would alter the conclusions regarding the differences between sites. The potential need to increase the number of stations was determined by assessing the precision of CAMP in estimating the abundance of influential species, as defined by the similarity percentages (SIMPER) routine. In general, significant differences in nekton assemblages were not detected between sampling designs. Six stations are sufficient to detect the moderately and highly abundant nekton species that contribute to the dissimilarities of estuaries. Increasing the number of CAMP stations would not alter the conclusion about the dissimilarity of sites based on the nekton community assemblages, or greatly increase the precision in estimating counts of influential species. The results indicate the application of CAMP is not limited by station selection bias and would not benefit from increasing the number of stations. Furthermore, programs designed to accommodate volunteers can produce comparable data to scientific studies if designed appropriately. Future analysis of the entire CAMP dataset can be used to determine if there is a relationship between the degree and type of anthropogenic activities influencing an estuary and the littoral nekton assemblages within it.

Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.

Comment cette classification a été obtenuedéplier

Prédiction machine sur la base complète

Imitation des enseignants

Ni prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.

score de la tête « metaresearch » (Codex)0,257
score de la tête « metaresearch » (Gemma)0,334
Version: metacan-v3-hybrid-931329e0061cStatut de validation: machine_predicted_unvalidated
Catégories candidatesMétarecherche
Catégories consensuellesaucune
DomaineSignal candidat: aucune · Signal consensuel: aucune
Devis d'étudeSignal candidat: Observationnel · Signal consensuel: Observationnel
GenreSignal candidat: Méthodes · Signal consensuel: aucune
Score de désaccord entre enseignants0,257
Score d'incertitude au seuil0,916

Scores du classifieur distillé par catégorie (deux têtes)

CatégorieCodexGemma
Métarecherche0,2570,334
Méta-épidémiologie (sens strict)0,0010,001
Méta-épidémiologie (sens large)0,0010,001
Bibliométrie0,0020,002
Études des sciences et des technologies0,0020,002
Communication savante0,0020,002
Science ouverte0,0030,003
Intégrité de la recherche0,0020,001
Charge utile insuffisante (le modèle a refusé de juger)0,0020,000

Scores machine (provisoires)

Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.

Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.

Tête enseignante Opus0,047
Tête enseignante GPT0,275
Écart entre enseignants0,228 · la distance entre les deux têtes enseignantes sur ce seul travail
Statut de validationscore_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle

Classification

machine, non validée

Prédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.

Devis d'étudeObservationnel
Domainenon disponible
GenreMéthodes

Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».

En bref

Citations0
Publié2017
Routes d'admission2
Résumé présentoui

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