20.500.12556/DiRROS-19988 "Only introduced" or "invasive" spread of the alga Aulacoseira ambigua f. japonica from Asia to Africa and Europe "Zgolj preseljena" ali "invazivna" širjenje alge Aulacoseira ambigua f. japonica iz Azije v Afriko in Evropo Many non-native algal species are found in waters all over the world. Many terms are used to describe such organisms that have expanded their distribution. However, a unified model or concept remains to be defined, as how biological ‘invasions’ are seen depends on the perspective. Understanding invasive organisms is important for biodiversity, science policy and water management. During monitoring sampling at Slivniško Lake (Slovenia) in 2016, the curved diatom Aulacoseira ambigua f. japonica Tuji & D.M. Williams was identified. This species originates from Japan, from where it was described more than 100 years ago. The chronology of the published distributions of A. ambigua f. japonica defines its spread from Japan to Asia, then to western Russia and South Africa, and now to central Europe. This study provides further evidence that A. ambigua f. japonica has become established in Europe (Slovenia), as supported by light microscopy and scanning electron microscopy. To the best of our knowledge, this is the first qualitative and quantitative description of A. ambigua f. japonica in Europe. It has been suggested that the shape of these algal colonies is significant for the interpretation of ecological information, and indeed, also in the present case, spiral colonies were found in this eutrophic water body. Although curved cells and colonies can also be interpreted as (sub)populations or morphological variants, only detailed molecular studies can reveal if these also have taxonomic significance. V vodah po vsem svetu najdemo veliko tujerodnih vrst. Za opis orga-nizmov, ki se širijo, je v uporabi veliko različnih pojmov. Kaže se potreba po opredeliti enotnega modela ali koncepta, saj je videnje bioloških “invazij” odvisno od perspektive. Razumevanje invazivnih organizmov je pomembno za biotsko raznovrstnost, znanstve-no politiko in upravljanje z vodami. Med spremljanjem vzorčenja na Slivniškem jezeru (Slovenija) leta 2016 smo med drugim določili tudi ukrivljeno diatomejo Aulacoseira ambigua f. japonica Tuji & D.M. Williams. Ta vrsta izvira iz Japonske, kjer je bila opisana pred več kot 100 leti. Kronologija objavljenih pojavljanj A. ambigua f. japo-nica opredeljuje njeno širjenje iz Japonske v Azijo, nato v zahodno Rusijo in Južno Afriko, zdaj pa v osrednjo Evropo. Ta raziskava vsebuje dodatne dokaze, da se je A. ambigua f. japonica uveljavila v Evropi (v Sloveniji), podprte s svetlobno mikrosko-pijo in vrstično elektronsko mikroskopijo. Gre za prvi kvalitativni in kvantitativni opis A. ambigua f. japonica v Evropi. Oblika algnih kolonij je lahko pomembna za razlago ekoloških informacij; v danem primeru so bile v evtrofnem vodnem telesu najdene spiralne kolonije. Čeprav so ukrivljene celice in kolonije lahko interpretirane tudi kot (sub)populacije ali morfološke različice, lahko le natančne molekularne študije razkrijejo, če imajo ti morfotipi taksonomski pomen. algae introduced species invasive species scanning electron microscopy alge vnesene vrste invazivne vrste vrstična elektronska mikroskopija Aulacoseira ambigua f. japonica true false true Angleški jezik Slovenski jezik Neznano 2024-08-01 10:50:38 2024-08-01 10:50:39 2024-08-02 03:50:42 0000-00-00 00:00:00 2018 0 0 Besedilo v angl.; str. 39-46 št. 2 Vol. 61 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2018-12-01 574 1408-3671 4947023 RAZ_Elersek_Tina_2018.pdf RAZ_Elersek_Tina_2018.pdf 1 E1ACFD97E84F1D951067B42D56C2B2F7 8c6e0e01406c5af325bbd317c0640b6d7548b57727e3e8a15b89c277aa09a7e6 ec37841e-4fd2-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=27775 https://doi.org/10.14720/abs.61.2.15893 0 00b389e5-4fd3-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=27776 Nacionalni inštitut za biologijo 0 0 0