| Title: | Chemical composition and egg production capacity throughout bloom development of ctenophore Mnemiopsis leidyi in the northern Adriatic Sea |
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| Authors: | ID Rečnik, Kevin (Author)
ID Klun, Katja (Author)
ID Lipej, Lovrenc (Author)
ID Malej, Alenka (Author)
ID Tinta, Tinkara (Author) |
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| Files: |  URL - Source URL, visit https://peerj.com/articles/17844/#
 PDF - Presentation file, download (2,78 MB)
MD5: 9CF3D65EDA74EB4ED2C219AAF9EDC319
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  NIB - National Institute of Biology
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| Abstract: | High abundances of gelatinous zooplankton (GZ) can significantly impact marine
ecosystem by acting as both sink and source of organic matter (OM) and nutrients.
The decay of GZ bloom can introduce significant amount of OM to the ocean interior,
with its variability influenced by GZ life traits and environmental factors, impacting
microbial communities vital to marine biogeochemical cycles. The invasive ctenophores
Mnemiopsis leidyi has formed massive blooms in the northern Adriatic Sea since
2016. However, the variability in the chemical composition and egg production of
blooming populations, as well as the role of environmental factors in governing this
variability, remains largely unknown. Our analysis of biometry, chemical composition,
and fecundity of M. leidyi sampled in the Gulf of Trieste in 2021 revealed stable carbon
and nitrogen content throughout bloom development, with no significant correlation
with seawater temperature, salinity, oxygen, and chlorophyll a concentration. Although
the studied population exhibited homogeneity in terms of biometry and chemical
composition, the number of produced eggs varied substantially, showing no clear
correlation with environmental variables and being somewhat lower than previously
reported for the study area and other Mediterranean areas. We observed a positive
correlation between the wet weight of individuals and the percentage of hatched eggs,
as well as a significant positive correlation between the percentage of hatched eggs
and ambient seawater temperature. Additionally, we noted that the speed of hatching
decreased with decreasing seawater temperature in autumn, corresponding to the end
of M. leidyi bloom.
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| Keywords: | ctenophore, biogeochemistry, egg production capacity, invasive species, chemical composition, marine ecology |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 06.08.2024 |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-15 |
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| Numbering: | Vol. 12, [article no.] e17844 |
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| PID: | 20.500.12556/DiRROS-20248  |
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| UDC: | 574.5 |
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| ISSN on article: | 2167-8359 |
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| DOI: | 10.7717/peerj.17844 |
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| COBISS.SI-ID: | 205091587 |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji: Katja Klun, Lovrenc Lipej, Alenka Malej and Tinkara Tinta;
Opis vira z dne 23. 8. 2024;
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| Publication date in DiRROS: | 29.08.2024 |
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| Views: | 238 |
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| Downloads: | 614 |
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