Regional Peculiarities of Hydrobiont Bioluminescence Intensity and Chlorophyll a Concentration in Black Sea Waters

Polonsky, A. B.; Мельникова, Е. Б.; Serebrennikov, A. N.; Tokarev, Yu. N.

doi:10.1134/s1024856018040085

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…The length-age structure depends both on the internal characteristics of the population and the impact of external climatic (temperature) factors (Bellido et al, 2000;Zuyev and Melnikova et al, 2004;Giragosov et al, 2006;Melnikova and Kuzminova, 2022). Many researchers (Klyashtorin and Lyubushin, 2005;Oguz, 2005;Polonsky et al, 2018;Panov et al, 2020) have noted in their work that one of the main factors affecting the state of the pelagic ecosystem is the climatic factor and, above all, temperature changes. The temperature determines the intensity of the circulation of water masses and thus affects the production processes of various trophic levels.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Temperature Factor on the Changes in the Growth Parameters of Sprat (2000 - 2020)

Melnikova,

Melnikov

2024

Croatian Journal of Fisheries

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A study was conducted on the changes in sea surface temperature (SST) on the southwestern shelf of the Crimea between 2000 and 2020. The equations of trends in the change of SST were found. It is shown that the following three periods can be distinguished according to the nature of changes in the average annual sea temperature: 2000 - 2007, 2008-2013 and 2014 - 2020. The influence of changes in the average annual SST on the development of pelagic fish of the cold-water complex was considered (using the example of the Black Sea sprat). Changes in the main parameters of the populations and their relationship with the change in the average annual SST were determined. It was found that the increase in sea temperature negatively affected the development of the sprat population, and the average age of the population decreased by 1.3 times. In general, the population was rejuvenated, and the average size and weight of individuals decreased.

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Section: Introductionmentioning

confidence: 99%

The Influence of the Temperature Factor on the Changes in the Growth Parameters of Sprat (2000 - 2020)

Melnikova,

Melnikov

2024

Croatian Journal of Fisheries

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“…[5] Few publications have reported the impact of mesoscale eddies on bioluminescence intensity and the vertical structure of bioluminescent field in coastal waters of the Black Sea and the Pacific Ocean. [6,7] These eddies are modulated by appropriate coastal currents and their meandering. For instance, the major geostrophic current of the Black Sea (the Rim Current) generates anticyclonic eddies across the Crimean shelf and cyclonic eddies in deep sea waters.…”

Section: Introductionmentioning

confidence: 99%

Bioluminescent eddies of the World Ocean

et al. 2023

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Mesoscale eddies of the ocean (with a characteristic diameter of about 100 km and a life time‐span of about several weeks) are habitats of plankton organisms, many of which are bioluminescent. The spatial heterogeneity of bioluminescence of the upper mixed layer associated with the impact of mesoscale eddies is poorly studied. The 45‐year historical data set was retrieved, in order to select the bathy‐photometric surveys carried out in the form of station grids and transects across eddies. Data from 71 expeditions deployed in 1966–2022 to the Atlantic Ocean, Indian Ocean and Mediterranean Sea basin were analyzed, in order for the spatial heterogeneity of bioluminescent fields to be elucidated across eddy fields. The stimulated bioluminescence intensity was characterized by the bioluminescent potential, which represented the maximal amount of radiant energy emitted in a given volume of water by bioluminescent organisms. The normalized bioluminescent potential over oceanographic station grids exhibited correlation with the eddy kinetic energy and zooplankton biomass (r = 0.8, at P = 0.001 and r = 0.7, at P = 0.05, respectively), in a broad range of energy and bioluminescence units (0.02–0.2 m2 s−2; 0.4–92.0 × 10−8 W cm−2 L−1, respectively). Overall, estimates of bioluminescent potential variability on the mesoscale contribute to the assessment of the multiple‐scale variation of the bioluminescent field of the World Ocean.

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“…As a result, main features of seasonal dynamics in the bioluminescence intensity of hydrobionts in certain regions have been determined, the integral influence of hydrophysical parameters on bioluminescence intensity has been estimated, and main planktonic luminous organisms in the Black Sea have been identified. [ 21–25 ] Despite the available publications on this topic, [ 1–10,21–26 ] regional features related to the vertical distribution of bioluminescence intensity of hydrobionts in the summer, taking into account the influence of water circulation, which contributes to formation of convergence and divergence zones along the coast of Crimea, have not been fully studied.…”

Section: Introductionmentioning

confidence: 99%

Regional variability of integral intensity of bioluminescence of hydrobionts in the waters of the Black Sea in the summer period under the influence of hydrophysical processes

2020

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Characterization of hydrobionts concentrations in coastal and deep‐water areas of the Black Sea during the summer was carried out to analyse features related to the vertical distribution of bioluminescence intensity in the phytoplankton community. The thermohaline structure of the water and regional characteristics of eddy formations determined from satellite measurements of sea level anomalies were taken into account. Integral intensity of bioluminescence of hydrobionts (IIBH) was used to comparatively assess total biomass variability and the numbers of hydrobionts in the considered regions. The highest IIBH, averaging 37 830 pW·cm−2·L−1, was observed at stations located on the south‐western shelf of the Crimea; high levels of bioluminescence intensity of hydrobionts in this layer were located at depths of 15–23 m. For stations located in the Kerch pre‐strait area, most of which were in the divergence zone, the average IIBH was quite high (30 530 pW·cm−2·l−1), second only to the value recorded for the shallow south‐western shelf.

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Regional Peculiarities of Hydrobiont Bioluminescence Intensity and Chlorophyll a Concentration in Black Sea Waters

Cited by 8 publications

References 8 publications

The Influence of the Temperature Factor on the Changes in the Growth Parameters of Sprat (2000 - 2020)

The Influence of the Temperature Factor on the Changes in the Growth Parameters of Sprat (2000 - 2020)

Bioluminescent eddies of the World Ocean

Regional variability of integral intensity of bioluminescence of hydrobionts in the waters of the Black Sea in the summer period under the influence of hydrophysical processes

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