INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS

INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS

The bioluminescence and plankton characteristics in the euphotic layer over 11 seamounts in the Atlantic Ocean were studied. Investigations were carried out along the axis of flow over the mounts. Bathyphotometric measurements (1606 casts) were taken from 2 m to 100 m depths at 87 stations over the...

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Дата:2023
Автори: Tokarev, Yu. N., Bityukov, E. P., Williams, R.
Формат: Стаття
Мова:English
Опубліковано: Marine Ecological Journal 2023
Теми:
Атлантический океан
подводные возвышенности
биолюминесценция
планктон
Онлайн доступ:https://mej.od.ua/index.php/mej/article/view/26
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Назва журналу:Marine Ecological Journal

Репозитарії

Marine Ecological Journal
id oai:ojs2.mej.od.ua:article-26
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institution Marine Ecological Journal
baseUrl_str
datestamp_date 2023-05-09T12:08:34Z
collection OJS
language English
topic Атлантический океан
подводные возвышенности
биолюминесценция
планктон
spellingShingle Атлантический океан
подводные возвышенности
биолюминесценция
планктон
Tokarev, Yu. N.
Bityukov, E. P.
Williams, R.
INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
topic_facet Атлантический океан
подводные возвышенности
биолюминесценция
планктон
Atlantic Ocean
seamounts
bioluminescence
plankton
format Article
author Tokarev, Yu. N.
Bityukov, E. P.
Williams, R.
author_facet Tokarev, Yu. N.
Bityukov, E. P.
Williams, R.
author_sort Tokarev, Yu. N.
title INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
title_short INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
title_full INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
title_fullStr INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
title_full_unstemmed INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
title_sort influence of seamounts at the atlantic ocean on modification of the bioluminescence and plankton characteristics
title_alt INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS
description The bioluminescence and plankton characteristics in the euphotic layer over 11 seamounts in the Atlantic Ocean were studied. Investigations were carried out along the axis of flow over the mounts. Bathyphotometric measurements (1606 casts) were taken from 2 m to 100 m depths at 87 stations over the various seamounts with a vertical resolution of 1 m. Plankton samples were taken with Juday nets and submersible electric pumps with 36 m3• •h-1 performance. The bioluminescence characteristics varied over seamounts with different geomorphological features. The hydrodynamic gyres, created by the bottom elevations, and the upwelling of water with biogenic elements, also seem to have effects on the quantitative characteristics of the plankton. The largest changes in the structure and intensity of the bioluminescence field were observed in the regions of large geomorphological formations. For example, over mountains at greater depth in the North Atlantic Ocean (Slozhnaya, Mayskaya, Hecate sea mounts) changes were observed between 5 and 16 km from their peaks, while in the regions of comparatively shallow bank, such as Valdivia, changes were seen up to distances of 100 km. The influence of sharppicks sea mounts (Meteor and Irving, Udachnaya bank) on the bioluminescence field and distribution of plankton was not so evident. For example, the effects of the Meteor and Irving mountains were observed only over their peaks, with the intensity of bioluminescence exceeding the background levels by 1.5 to 3 times. The same effect was observed over the Udachnaya bank that was being characterised by higher productivity. In the region of Valdivia bank, which has a depth similar to the Meteor and Irving sea mounts (about 250 m) the bioluminescence intensity, in the upper 100 m layer increased over 20 times if compared with the open ocean.
publisher Marine Ecological Journal
publishDate 2023
url https://mej.od.ua/index.php/mej/article/view/26
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spelling oai:ojs2.mej.od.ua:article-262023-05-09T12:08:34Z INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS INFLUENCE OF SEAMOUNTS AT THE ATLANTIC OCEAN ON MODIFICATION OF THE BIOLUMINESCENCE AND PLANKTON CHARACTERISTICS Tokarev, Yu. N. Bityukov, E. P. Williams, R. Атлантический океан, подводные возвышенности, биолюминесценция, планктон Atlantic Ocean, seamounts, bioluminescence, plankton The bioluminescence and plankton characteristics in the euphotic layer over 11 seamounts in the Atlantic Ocean were studied. Investigations were carried out along the axis of flow over the mounts. Bathyphotometric measurements (1606 casts) were taken from 2 m to 100 m depths at 87 stations over the various seamounts with a vertical resolution of 1 m. Plankton samples were taken with Juday nets and submersible electric pumps with 36 m3• •h-1 performance. The bioluminescence characteristics varied over seamounts with different geomorphological features. The hydrodynamic gyres, created by the bottom elevations, and the upwelling of water with biogenic elements, also seem to have effects on the quantitative characteristics of the plankton. The largest changes in the structure and intensity of the bioluminescence field were observed in the regions of large geomorphological formations. For example, over mountains at greater depth in the North Atlantic Ocean (Slozhnaya, Mayskaya, Hecate sea mounts) changes were observed between 5 and 16 km from their peaks, while in the regions of comparatively shallow bank, such as Valdivia, changes were seen up to distances of 100 km. The influence of sharppicks sea mounts (Meteor and Irving, Udachnaya bank) on the bioluminescence field and distribution of plankton was not so evident. For example, the effects of the Meteor and Irving mountains were observed only over their peaks, with the intensity of bioluminescence exceeding the background levels by 1.5 to 3 times. The same effect was observed over the Udachnaya bank that was being characterised by higher productivity. In the region of Valdivia bank, which has a depth similar to the Meteor and Irving sea mounts (about 250 m) the bioluminescence intensity, in the upper 100 m layer increased over 20 times if compared with the open ocean. Исследованы распределения планктона и биолюминесценции в эвфотическом слое над 11 подводными возвышенностями Атлантического океана. Исследования проводились вдоль оси течения над возвышенностями. Батифотометрические измерения (1606 зондирований) проводились от 2 до 100 м глубины с вертикальным разрешением в 1 м на 87 станциях над различными поднятиями. Планктонные пробы отбирались с помощью сети Джеди и погружаемых электрических насосов производительностью 36 м3•ч-1. Характеристики биолюминесценции варьировали над поднятиями различной геоморфологии. Степень влияния порождаемых поднятиями дна гидродинамических вихрей, обусловливающих подъём богатых биогенными элементами глубинных вод, на количественные характеристики планктона оказалась также различной. Наибольшие изменения структуры и интенсивности поля биолюминесценции выявлены в районе крупных геоморфологических образований. Так, над более глубоководными возвышенностями (горы Сложная, Майская, Хекате) эти изменения зарегистрированы на расстояниях 5 - 16 км от их вершин, в то время как в районе сравнительно мелководной банки Вальдивия – до 100 км. Влияние островершинных поднятий (горы Метеор, Эрвинг, банка Удачная) на поле биолюминесценции и распределение планктона выражено существенно меньше. Так, воздействие гор Метеор и Эрвинг прослеживается только над самими вершинами поднятий, причём интенсивность биолюминесценции здесь не более чем в 1.5 - 3 раза превышала фоновые. Аналогичный эффект наблюдался в районе банки Удачная, отличавшейся высоким продукционным потенциалом. В то же время в районе банки Вальдивия, с аналогичными горам Метеор и Эрвинг глубинами (около 250 м), интенсивность биолюминесценции в слое 0 - 100 м увеличивалась в сравнении с фоновыми акваториями до 20 раз. Marine Ecological Journal Морський екологічний журнал 2023-05-09 Article Article Рецензована Стаття application/pdf https://mej.od.ua/index.php/mej/article/view/26 Marine Ecological Journal ; No. 1 (2003): Marine ecological journal; 46-58 Морський екологічний журнал; № 1 (2003): Морський екологічний журнал; 46-58 en https://mej.od.ua/index.php/mej/article/view/26/24

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