Journal
PLANTS-BASEL
Volume 10, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/plants10071387
Keywords
seagrass; sexual reproduction; anthropogenic stressors; sediment; organic matter
Categories
Funding
- COMPETE 2020, Portugal 2020 [PTDC/BIA-ECO/29818/2017-POCI-01-01415-FEDER029818, 029818]
- European Union through the ERDF [PTDC/BIA-ECO/29818/2017-POCI-01-01415-FEDER029818, 029818]
- FCT [PTDC/BIA-ECO/29818/2017-POCI-01-01415-FEDER029818, 029818, UID/Multi/04423/2019]
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Recent studies have shown an increase in Zostera noltei meadows in areas modified by anthropogenic activities, but it is unclear if this expansion is linked to greater reproductive effort in the species. The research suggests that stress-induced flowering of Z. noltei may occur under specific environmental conditions, such as silty environments with organic enrichment.
Recent studies have shown increasing Zostera noltei meadows in areas modified by anthropogenic activities. However, it is not entirely clear whether this trend of expansion could be linked to a greater reproductive effort in the species. Anthropogenic stressors can induce the reproductive effort of seagrass meadows as a response to stress, but other variables, such as seagrass biometrics or environmental factors, can also influence their sexual reproduction. To increase the knowledge regarding this issue, we monitored the flowering effort, seagrass biometrics and abiotic parameters of three Z. noltei meadows in an area that has been highly modified by anthropogenic activities during the past decades. Results showed that silt and clay content in the sediment (strongly correlated with organic matter) and seagrass vertical shoot density explained 54% of the variability in the flowering effort of the meadows. This study suggests that stress-induced flowering of Z. noltei may occur under determinate environmental conditions, such as silty environments with organic enrichment.
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