Mining discarded molecular data for HAB gold

Pfannkuchen, Martin; Baričević, Ana; Knjaz, Mia; Marić Pfannkuchen, Daniela; Smodlaka Tanković, Mirta; Grižančić, Lana; Kogovšek, Tjaša; Podolšak, Ivan; Vlašiček, Ivan; Turković, Ariana (2025) Mining discarded molecular data for HAB gold. In: 21st International Conference on Harmful Algae, ICHA 2025; From HAB Science to Environmental Resilience; Abstract Book. p. 124 .

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Abstract

The northern Adriatic Sea is a shallow and dynamic marine ecosystem, characterized by steep spatiotemporal ecological gradients, strong anthropogenic pressures and expressed riverine freshwater influences. It is additionally characterized by the highest density of marine traffic in the Mediterranean. Ballast water related species introduction, in combination with long water body retention times render the area particularly prone to species introductions from all seas and oceans. Here, we present an effort to consolidate a multimethod approach to monitor the area for species introductions. The combination of methods based on morphological analyses with methods based on genetic sequences as well as with methods based on gene transcription analyses demonstrated significant improvements in taxonomic scope and resolution. The normally discarded ribosomal RNA sequences derived from metatranscriptomics studies proved particularly effective in monitoring water samples and net hauls for potentially harmful and/or invasive species across the tree of life. We describe the newly developed methodology for the analysis of molecular traces of so far hidden biodiversity and report a wide spectrum of species new to the Mediterranean and the Adriatic Sea.

Item Type:	Conference or workshop item published in conference proceedings (UNSPECIFIED)
Uncontrolled Keywords:	multi-omics; phytoplankton; invasive species
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Interdisciplinary Natural Sciences > Marine Science INTERDISCIPLINARY AREAS OF KNOWLEDGE
Divisions:	Center for Marine Research
Projects:	Project title Project leader Project code Project type Životne strategije fitoplanktona u sjevernom Jadranu-P-limit Martin Pfannkuchen UIP-2014-09-6563 HRZZ Molekularne životne strategije fitoplanktona u Jadranu-Adri LIFE Daniela Marić Pfannkuchen UIP-2020-02-7868 HRZZ Joint European Research Infrastructure of Coastal Observatories: Science, Service, Sustainability-JERICO-S3 Martin Pfannkuchen 871153 EK CoAStal and marine waters integrated monitoring systems for ecosystems proteCtion AnD managemEnt-CASCADE Daniela Marić Pfannkuchen; Ivana Ujević 10255941 EK Climate change information, monitoring and management tools for adaptation stgrategies in Adriatic coastal areas-ADRIACLIM Ana Baričević; Gordana Beg Paklar 10252001 EK MARine Litter cross-borderawarenESS and innovation actions-MARLESS Mirta Smodlaka Tanković 10253874 EK
Depositing User:	dr.sc. Mia Knjaz
Date Deposited:	19 Jan 2026 09:07
URI:	http://fulir.irb.hr/id/eprint/10979

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