Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka
Nutrient fluxes with river runoff can largely determine the state of coastal water ecosystems. The Vilyuchinskaya and Avachinskaya Bays of Kamchatka Peninsula were surveyed on 4–5 July 2022, just after the peak of the spring–summer flood of the Vilyucha and Avacha Rivers associated with the snow mel...
Published in: | Journal of Marine Science and Engineering |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3390/jmse11071299 https://doaj.org/article/a3d9f614678a4d3593d0e7207e755f49 |
id |
ftdoajarticles:oai:doaj.org/article:a3d9f614678a4d3593d0e7207e755f49 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:a3d9f614678a4d3593d0e7207e755f49 2023-08-20T04:07:39+02:00 Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka Pavel Semkin Galina Pavlova Vyacheslav Lobanov Yuri Barabanshchikov Sergey Kukla Sergey Sagalaev Maria Shvetsova Elena Shkirnikova Petr Tishchenko Evgenia Tibenko Olga Ulanova Pavel Tishchenko 2023-06-01T00:00:00Z https://doi.org/10.3390/jmse11071299 https://doaj.org/article/a3d9f614678a4d3593d0e7207e755f49 EN eng MDPI AG https://www.mdpi.com/2077-1312/11/7/1299 https://doaj.org/toc/2077-1312 doi:10.3390/jmse11071299 2077-1312 https://doaj.org/article/a3d9f614678a4d3593d0e7207e755f49 Journal of Marine Science and Engineering, Vol 11, Iss 1299, p 1299 (2023) Kamchatka Peninsula estuary CO 2 nutrient flux phytoplankton bloom organic matter Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 article 2023 ftdoajarticles https://doi.org/10.3390/jmse11071299 2023-07-30T00:35:26Z Nutrient fluxes with river runoff can largely determine the state of coastal water ecosystems. The Vilyuchinskaya and Avachinskaya Bays of Kamchatka Peninsula were surveyed on 4–5 July 2022, just after the peak of the spring–summer flood of the Vilyucha and Avacha Rivers associated with the snow melting in volcanic areas. Additionally, water sampling was performed in river water in December 2022, in the period of winter low water. A general undersaturation of CO 2 of surface waters was observed in the Vilyuchinskaya and Avachinskaya Bays. Strong supersaturation of CO 2 of the near-bottom waters was observed, due to microbial destruction of organic matter, especially in Avachinskaya Bay. This organic matter was formed as a result of photosynthesis in the water column, which subsequently gravitated to the bottom and concentrated in specific bottom depressions in the studied bays. In these depressions, black sediments were found, in which sulfate reduction occurred. The porewater of sediments had a very high concentration of organic carbon, dissolved and organic nitrogen, and phosphates, as well as CO 2 partial pressure. The source of nutrients for the studied bays is tephra (volcanic suspended particles), which covers all the watersheds, including the soil and snow, as a result of volcanic activity in the study region. Based on the calculated nutrient fluxes in river runoff for the summer and winter seasons and the DIN/DIP ratios in river, sea, and pore waters, the causes of phytoplankton blooms, including the occurrence of red tides, are discussed. The maximum flux of nutrients and, accordingly, phytoplankton blooms should be expected in the years with the highest volcanic activity and high summer air temperatures, since the melting of nutrient-rich snow and ice will be maximum. This will determine the flux of nutrients in the river runoff of the Kamchatka Peninsula and contribute to phytoplankton blooms. Article in Journal/Newspaper Kamchatka Kamchatka Peninsula Directory of Open Access Journals: DOAJ Articles Avacha ENVELOPE(158.503,158.503,53.040,53.040) Kamchatka Peninsula ENVELOPE(160.000,160.000,56.000,56.000) Vilyucha ENVELOPE(158.407,158.407,52.658,52.658) Journal of Marine Science and Engineering 11 7 1299 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Kamchatka Peninsula estuary CO 2 nutrient flux phytoplankton bloom organic matter Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
spellingShingle |
Kamchatka Peninsula estuary CO 2 nutrient flux phytoplankton bloom organic matter Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Pavel Semkin Galina Pavlova Vyacheslav Lobanov Yuri Barabanshchikov Sergey Kukla Sergey Sagalaev Maria Shvetsova Elena Shkirnikova Petr Tishchenko Evgenia Tibenko Olga Ulanova Pavel Tishchenko Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka |
topic_facet |
Kamchatka Peninsula estuary CO 2 nutrient flux phytoplankton bloom organic matter Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
description |
Nutrient fluxes with river runoff can largely determine the state of coastal water ecosystems. The Vilyuchinskaya and Avachinskaya Bays of Kamchatka Peninsula were surveyed on 4–5 July 2022, just after the peak of the spring–summer flood of the Vilyucha and Avacha Rivers associated with the snow melting in volcanic areas. Additionally, water sampling was performed in river water in December 2022, in the period of winter low water. A general undersaturation of CO 2 of surface waters was observed in the Vilyuchinskaya and Avachinskaya Bays. Strong supersaturation of CO 2 of the near-bottom waters was observed, due to microbial destruction of organic matter, especially in Avachinskaya Bay. This organic matter was formed as a result of photosynthesis in the water column, which subsequently gravitated to the bottom and concentrated in specific bottom depressions in the studied bays. In these depressions, black sediments were found, in which sulfate reduction occurred. The porewater of sediments had a very high concentration of organic carbon, dissolved and organic nitrogen, and phosphates, as well as CO 2 partial pressure. The source of nutrients for the studied bays is tephra (volcanic suspended particles), which covers all the watersheds, including the soil and snow, as a result of volcanic activity in the study region. Based on the calculated nutrient fluxes in river runoff for the summer and winter seasons and the DIN/DIP ratios in river, sea, and pore waters, the causes of phytoplankton blooms, including the occurrence of red tides, are discussed. The maximum flux of nutrients and, accordingly, phytoplankton blooms should be expected in the years with the highest volcanic activity and high summer air temperatures, since the melting of nutrient-rich snow and ice will be maximum. This will determine the flux of nutrients in the river runoff of the Kamchatka Peninsula and contribute to phytoplankton blooms. |
format |
Article in Journal/Newspaper |
author |
Pavel Semkin Galina Pavlova Vyacheslav Lobanov Yuri Barabanshchikov Sergey Kukla Sergey Sagalaev Maria Shvetsova Elena Shkirnikova Petr Tishchenko Evgenia Tibenko Olga Ulanova Pavel Tishchenko |
author_facet |
Pavel Semkin Galina Pavlova Vyacheslav Lobanov Yuri Barabanshchikov Sergey Kukla Sergey Sagalaev Maria Shvetsova Elena Shkirnikova Petr Tishchenko Evgenia Tibenko Olga Ulanova Pavel Tishchenko |
author_sort |
Pavel Semkin |
title |
Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka |
title_short |
Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka |
title_full |
Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka |
title_fullStr |
Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka |
title_full_unstemmed |
Nutrient Flux under the Influence of Melt Water Runoff from Volcanic Territories and Ecosystem Response of Vilyuchinskaya and Avachinskaya Bays in Southeastern Kamchatka |
title_sort |
nutrient flux under the influence of melt water runoff from volcanic territories and ecosystem response of vilyuchinskaya and avachinskaya bays in southeastern kamchatka |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/jmse11071299 https://doaj.org/article/a3d9f614678a4d3593d0e7207e755f49 |
long_lat |
ENVELOPE(158.503,158.503,53.040,53.040) ENVELOPE(160.000,160.000,56.000,56.000) ENVELOPE(158.407,158.407,52.658,52.658) |
geographic |
Avacha Kamchatka Peninsula Vilyucha |
geographic_facet |
Avacha Kamchatka Peninsula Vilyucha |
genre |
Kamchatka Kamchatka Peninsula |
genre_facet |
Kamchatka Kamchatka Peninsula |
op_source |
Journal of Marine Science and Engineering, Vol 11, Iss 1299, p 1299 (2023) |
op_relation |
https://www.mdpi.com/2077-1312/11/7/1299 https://doaj.org/toc/2077-1312 doi:10.3390/jmse11071299 2077-1312 https://doaj.org/article/a3d9f614678a4d3593d0e7207e755f49 |
op_doi |
https://doi.org/10.3390/jmse11071299 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
11 |
container_issue |
7 |
container_start_page |
1299 |
_version_ |
1774719458372222976 |