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Toward the first documented extinction of a marine macroalga in the Mediterranean Sea? [Elektronski vir]Descourvières, Emmanuelle Patricia ...Fucus virsoides is a glacial relict-species endemic to the Adriatic that was widespread from northern Italy to southern Albania. In recent decades, however, it has suffered an alarming decline. In ... this study, all available records were reviewed to reconstruct its historical and current occurrence and to investigate the possible causes of its decline. Comprehensive mapping revealed a continuing decline with a significant shift, leaving only about 20 fragmented populations. While the species is already classified as critically endangered in Albania, F. virsoides could be considered functionally extinct in Istria (Croatia), critically threatened with extinction in Italy and Montenegro and locally extinct in Slovenia. The status of the species in the rest of Croatia is still unclear. The remaining populations are located in areas characterised by low temperatures, low salinity and high nutrient concentrations. Long-term analyses of these key abiotic factors revealed profound changes that suggest a link to the species' decline. This study provides a thorough assessment of the overall status of F. virsoides and argues for its inclusion on the IUCN Red List. Immediate conservation measures are needed for the long-term survival of this species.Source: Regional environmental change [Elektronski vir]. - ISSN 1436-378X (Vol. 24, art. no. 132, Avg. 2024, str. 1-12)Type of material - e-article ; adult, seriousPublish date - 2024Language - englishCOBISS.SI-ID - 205537539
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