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<p><i>Pontederia crassipes</i> is a thermophilous, and one of the 100 worst invasive species originating from the Amazonia. To collect presence and true-absence data on its distribution in the central Balkan Peninsula, 276 sites were surveyed over three years (2022–2024). Our previous knowledge of <i>P. crassipes</i> occurring in thermally altered ecosystems has been expanded by the discovery of its population in a gravel pit (42.58645 N; 21.998425 E). Sixteen individuals were found growing in slightly alkaline water with an electroconductivity of 416 μS/cm and low nutrient concentrations (NO<sub>2</sub><sup>−</sup> and NO<sub>3</sub><sup>−</sup> of 0.006&#xa0;mg/L; PO<sub>4</sub><sup>3−</sup> of 0.017&#xa0;mg/L; SO<sub>4</sub><sup>2−</sup> of 49.18&#xa0;mg/L), along with fluoride (0.33&#xa0;mg/L), bromide (0.88&#xa0;mg/L), and chloride (54.63&#xa0;mg/L) levels as noted. It seems that the physico-chemical water properties do not appear to be limiting factors for the spread and establishment of self-sustaining populations in the lowland and hilly regions of the area studied. However, under current bioclimatic contidions, the species lacks the capacity to become invasive in non-thermal waters of the temperate Balkan Peninsula due to its limited overwintering ability. Future studies should prioritize monitoring thermal waters throughout the Balkan Peninsula, and non-thermal waters in its Mediterranean part, to identify potential self-sustaining populations of <i>P. crassipes</i>.</p>

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Water hyacinth (Pontederia crassipes) in the central Balkan Peninsula: the beginning or the end of the story?

  • 期刊论文

  • 发表日期：

    2026年1月29日

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  • Dragana Jenačković Gocić,
  • Danijela Nikolić,
  • Irena Raca,
  • Ivana Kostić Kokić,
  • Nikola Stanković,
  • Jovana Stojanović,
  • Danica Vukotić,
  • Marina Jušković,
  • Tatjana Anđelković

摘要

Pontederia crassipes is a thermophilous, and one of the 100 worst invasive species originating from the Amazonia. To collect presence and true-absence data on its distribution in the central Balkan Peninsula, 276 sites were surveyed over three years (2022–2024). Our previous knowledge of P. crassipes occurring in thermally altered ecosystems has been expanded by the discovery of its population in a gravel pit (42.58645 N; 21.998425 E). Sixteen individuals were found growing in slightly alkaline water with an electroconductivity of 416 μS/cm and low nutrient concentrations (NO2− and NO3− of 0.006 mg/L; PO43− of 0.017 mg/L; SO42− of 49.18 mg/L), along with fluoride (0.33 mg/L), bromide (0.88 mg/L), and chloride (54.63 mg/L) levels as noted. It seems that the physico-chemical water properties do not appear to be limiting factors for the spread and establishment of self-sustaining populations in the lowland and hilly regions of the area studied. However, under current bioclimatic contidions, the species lacks the capacity to become invasive in non-thermal waters of the temperate Balkan Peninsula due to its limited overwintering ability. Future studies should prioritize monitoring thermal waters throughout the Balkan Peninsula, and non-thermal waters in its Mediterranean part, to identify potential self-sustaining populations of P. crassipes.