Integrated environmental assessment of the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea): spatial and seasonal dynamics of fecal bacteria, phytoplankton, and nutrients.

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Autores principales: Jokanović, Sandra, Huter, Aleksandra, Perošević-Bajčeta, Ana, Drakulović, Dragana, Kračun-Kolarević, Margareta
Formato: Artículo científico
Lenguaje:en
Publicado: Environmental monitoring and assessment 2026
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author Jokanović, Sandra
Huter, Aleksandra
Perošević-Bajčeta, Ana
Drakulović, Dragana
Kračun-Kolarević, Margareta
author_facet Jokanović, Sandra
Huter, Aleksandra
Perošević-Bajčeta, Ana
Drakulović, Dragana
Kračun-Kolarević, Margareta
Jokanović, Sandra
Huter, Aleksandra
Perošević-Bajčeta, Ana
Drakulović, Dragana
Kračun-Kolarević, Margareta
collection PubMed - marine biology
contents Integrated environmental assessment of the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea): spatial and seasonal dynamics of fecal bacteria, phytoplankton, and nutrients. Jokanović, Sandra Huter, Aleksandra Perošević-Bajčeta, Ana Drakulović, Dragana Kračun-Kolarević, Margareta Phytoplankton Environmental Monitoring Seasons Bays Bacteria Feces Nutrients Seawater Water Microbiology This study provides a comprehensive spatial and seasonal assessment of environmental quality in the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea), focusing on the distribution of phytoplankton, nutrients, and fecal bacteria in water and sediment. Sampling was conducted at six stations over four seasons during 2019-2020. The PN1 station consistently showed the highest levels of fecal bacteria, particularly in spring, while sediments acted as a reservoir for fecal bacteria, especially at PN1 and PN3 during spring and autumn. Diatoms were the dominant phytoplankton assemblage with maximum abundance in spring and summer, while dinoflagellates reached the highest abundance in autumn. Coccolithophores had bimodal growth peaks: in spring and autumn, especially in lower layers. Total phytoplankton abundance bloom was the most intensive in summer, at the PN1 location. The Integrated Parameter Response (IPR) index indicated elevated ecological pressure in summer and autumn, while PCA analysis separated PN1, PN2, and PN3 locations as well as spring and winter seasons. Physicochemical parameters (except nitrite) and fecal bacteria remain within threshold limits, but a higher prevalence of fecal bacteria in sediment, intense phytoplankton blooms reaching up to 10 cells L⁻, the presence of potentially toxic phytoplankton species, and seasonal nutrient enrichment patterns, suggest latent pollution and pressure from land-based sources. This research highlights the need for further seasonal monitoring and serves as a baseline to make strategies for decision-makers.
format Artículo científico
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institution PubMed
language en
publishDate 2026
publisher Environmental monitoring and assessment
record_format pubmed
spellingShingle Integrated environmental assessment of the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea): spatial and seasonal dynamics of fecal bacteria, phytoplankton, and nutrients.
Jokanović, Sandra
Huter, Aleksandra
Perošević-Bajčeta, Ana
Drakulović, Dragana
Kračun-Kolarević, Margareta
Phytoplankton
Environmental Monitoring
Seasons
Bays
Bacteria
Feces
Nutrients
Seawater
Water Microbiology
Integrated environmental assessment of the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea): spatial and seasonal dynamics of fecal bacteria, phytoplankton, and nutrients. Jokanović, Sandra Huter, Aleksandra Perošević-Bajčeta, Ana Drakulović, Dragana Kračun-Kolarević, Margareta Phytoplankton Environmental Monitoring Seasons Bays Bacteria Feces Nutrients Seawater Water Microbiology This study provides a comprehensive spatial and seasonal assessment of environmental quality in the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea), focusing on the distribution of phytoplankton, nutrients, and fecal bacteria in water and sediment. Sampling was conducted at six stations over four seasons during 2019-2020. The PN1 station consistently showed the highest levels of fecal bacteria, particularly in spring, while sediments acted as a reservoir for fecal bacteria, especially at PN1 and PN3 during spring and autumn. Diatoms were the dominant phytoplankton assemblage with maximum abundance in spring and summer, while dinoflagellates reached the highest abundance in autumn. Coccolithophores had bimodal growth peaks: in spring and autumn, especially in lower layers. Total phytoplankton abundance bloom was the most intensive in summer, at the PN1 location. The Integrated Parameter Response (IPR) index indicated elevated ecological pressure in summer and autumn, while PCA analysis separated PN1, PN2, and PN3 locations as well as spring and winter seasons. Physicochemical parameters (except nitrite) and fecal bacteria remain within threshold limits, but a higher prevalence of fecal bacteria in sediment, intense phytoplankton blooms reaching up to 10 cells L⁻, the presence of potentially toxic phytoplankton species, and seasonal nutrient enrichment patterns, suggest latent pollution and pressure from land-based sources. This research highlights the need for further seasonal monitoring and serves as a baseline to make strategies for decision-makers.
title Integrated environmental assessment of the Porto Novi coastal zone (Boka Kotorska Bay, Adriatic Sea): spatial and seasonal dynamics of fecal bacteria, phytoplankton, and nutrients.
topic Phytoplankton
Environmental Monitoring
Seasons
Bays
Bacteria
Feces
Nutrients
Seawater
Water Microbiology
url https://pubmed.ncbi.nlm.nih.gov/41609880/