期刊
MARINE ENVIRONMENTAL RESEARCH
卷 172, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2021.105502
关键词
Benthic foraminiferal community; Ecological thresholds; Ecological quality status; Gradient forest; Random forest; Adriatic Sea
资金
- RSE SpA - Ricerca sul Sistema Elettrico, Milano, Italy
- Perseus European Project [287600]
- Conselho Nacional de Desen-volvimento Cientifico e Tecnologico of Brazil, CNPq [443662/2018-5, 302676/2019-8]
- Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro, FAPERJ, Brazil [E-26/202.927/2019]
This study identified the main environmental variables influencing benthic foraminiferal distributions and found that sand, silt, Pollution Load Index, and TN were the most influential predictors. The research provides valuable insights on how to enhance sediment quality and environmental stability for marine conservation efforts, offering policymakers a useful tool for surveying marine biodiversity and identifying key thresholds in predictors for protecting and restoring marine ecosystems.
The main environmental variables controlling benthic foraminiferal distributions were identified and used to assess their influence on ecological indices developed as predictors of Ecological Quality Status (EcoQS) in marine ecosystems. Gradient forest and random forest models were applied to assess the predictive value of a selection of abiotic (environmental) and biotic (foraminifera) variables in a costal marine area in the central Adriatic Sea (Italy). This approach yields evidence that the predictor variables sand, silt, Pollution Load Index, and TN have the greatest influence on the distribution of benthic foraminifera in this area. In addition, we identify thresholds for the most important environmental variables that influence ecological indices. These findings contribute to efforts to determine how to best improve sediment quality and environmental stability for marine conservation. Further application of these approaches represents a useful tool for policymakers to survey the diversity of marine organisms and to improve the ability to protect and restore marine ecosystems by identifying predictors of diversity and identifying key thresholds in these predictors.
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