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Pinna nobilis in the Mar Menor coastal lagoon: a story of colonization and uncertainty
- Source :
- Marine Ecology Progress Series. 652:77-94
- Publication Year :
- 2020
- Publisher :
- Inter-Research Science Center, 2020.
-
Abstract
- Populations of the Mediterranean fan mussel Pinna nobilis have progressively decreased over the last decades as a result of anthropogenic activities. The rate of decline has strongly increased since 2016, when a mass mortality event triggered by the parasite Haplosporidium pinnae occurred, and evidence exists that Mycobacterium species may also have played a major role in the event. Indeed, the epidemic has spread throughout the Mediterranean, although coastal lagoons seem to offer a degree of ‘resistance’ against the parasite. In the early 1980s, P. nobilis appeared in the Mar Menor lagoon and rapidly became an important component of the benthos. However, colonization of the lagoon by the fan mussel was cut short in 2016 when a massive mortality event occurred, possibly as a consequence of the environmental collapse that occurred in the lagoon, parallel to the mortality that the species suffered in the Mediterranean that same year. In this study, we estimated the spatial distribution of P. nobilis in the Mar Menor for 3 periods: 2003-2004, 2013 and 2016. The first 2 periods use published data, and the last period uses data collected in a new campaign. The probability of occurrence for the 3 periods was estimated using random forest and random forest regression-kriging models. The main environmental variables that determined the dispersion and colonization of the bivalve in the lagoon before 2016 are also identified.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Ecology
biology
010604 marine biology & hydrobiology
Species distribution model
Aquatic Science
Coastal lagoon
biology.organism_classification
01 natural sciences
Pinna nobilis
03 medical and health sciences
030104 developmental biology
Geography
Hypersalinity
Machine learning
SDM
Zoología
Colonization
Ecology, Evolution, Behavior and Systematics
Random forest
Subjects
Details
- ISSN :
- 16161599 and 01718630
- Volume :
- 652
- Database :
- OpenAIRE
- Journal :
- Marine Ecology Progress Series
- Accession number :
- edsair.doi.dedup.....9f2fabb13032134100b12efcd8d95d1c