השוואת שיטות

	מטא-ברקודינג של דנ"א סביבתי (eDNA)	מודל הצטברות ביולוגית
תחום	אקולוגיה	אקולוגיה
משפחה	Process / pipeline	Process / pipeline
שנת המקור	2012	2006
הוגה השיטה	Pierre Taberlet	Frank Gobas
סוג	species detection and community assessment	pollutant accumulation dynamics
מקור מכונן	Taberlet, P., Coissac, E., Hajibabaei, M., & Rieseberg, L. H. (2012). Environmental DNA. Molecular Ecology, 21(8), 1789-1793.	Arnot, J. A., & Gobas, F. A. (2006). A review of bioaccumulation factor (BAF) and bioconcentration factor (BCF) assessments for organic chemicals in aquatic organisms. Environmental Reviews, 14(4), 257-297.
כינויים	eDNA, metabarcoding, DNA metabarcoding, genetic monitoring	accumulation model, toxicokinetics, persistent organic pollutants, POPs
קשורות	4	4
תקציר	Environmental DNA (eDNA) metabarcoding detects and identifies species present in environmental samples (water, soil, air) by sequencing short DNA fragments released by organisms. Developed by Taberlet and colleagues (2012), this approach has revolutionized biodiversity monitoring: species can be surveyed without capture, observation, or complex sampling designs. Metabarcoding sequences millions of DNA fragments, identifies reads taxonomically, and assigns them to species. The method is non-invasive, rapid, and cost-effective, enabling large-scale biodiversity surveys and early detection of cryptic or rare species.	Bioaccumulation models predict how chemical contaminants accumulate in organisms from environmental exposure (water, food, sediment). Developed by Gobas and colleagues (2006), these models quantify the kinetics of chemical uptake, metabolism, and clearance. Bioaccumulation factors (BAF) and bioconcentration factors (BCF) measure the ratio of chemical concentration in organisms to concentration in the environment. Understanding bioaccumulation is critical for assessing ecological risk from persistent organic pollutants (POPs), heavy metals, and other contaminants.