Effect of water trophic status on bio-optical properties and productive characteristics of phytoplankton of the Black Sea coastal waters near Sevastopol

IF 1 4区生物学 Q4 ECOLOGY

Marine Biology Research Pub Date : 2023-03-16 DOI:10.1080/17451000.2023.2203502

T. Efimova, T. Churilova, E. Skorokhod, V. Buchelnikova, Anatoly S. Buchelnikov, N. Moiseeva, P. Salyuk, I. Stepochkin, Aleksandr Melnik

{"title":"Effect of water trophic status on bio-optical properties and productive characteristics of phytoplankton of the Black Sea coastal waters near Sevastopol","authors":"T. Efimova, T. Churilova, E. Skorokhod, V. Buchelnikova, Anatoly S. Buchelnikov, N. Moiseeva, P. Salyuk, I. Stepochkin, Aleksandr Melnik","doi":"10.1080/17451000.2023.2203502","DOIUrl":null,"url":null,"abstract":"ABSTRACT Spectral bio-optical properties and phytoplankton photosynthetic parameters were measured in Black Sea coastal waters near Sevastopol in May–July 2020–2021. Chlorophyll a concentration (Chl-a) differed by more than one order of magnitude between stations (0.20–5.6 mg/m3) due to the effect of the Chyornaya river runoff. Light absorption coefficients by all optically active components as well as total non-water absorption coefficients co-varied with Chl-a, which reflected a link between trophic status and water optical properties. An increase in total non-water absorption resulted in a shift of the maximum of downwelling irradiance to the longer wavelength (from 511 nm to 567 nm). Phytoplankton photosynthetic parameters were depth-dependent variables due to phytoplankton acclimations to light intensity without dependence on water trophic status. Gross primary production was estimated by the full spectral approach. Primary production (1.3–31 mgC/m3/h) co-varied with Chl-a. Chlorophyll a specific photosynthesis rate (4.3–8.0 mgC/mgChl/h) varied by about twice at the sea surface but no dependence on Chl-a was revealed.","PeriodicalId":18195,"journal":{"name":"Marine Biology Research","volume":"19 1","pages":"81 - 93"},"PeriodicalIF":1.0000,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine Biology Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/17451000.2023.2203502","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ECOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

ABSTRACT Spectral bio-optical properties and phytoplankton photosynthetic parameters were measured in Black Sea coastal waters near Sevastopol in May–July 2020–2021. Chlorophyll a concentration (Chl-a) differed by more than one order of magnitude between stations (0.20–5.6 mg/m3) due to the effect of the Chyornaya river runoff. Light absorption coefficients by all optically active components as well as total non-water absorption coefficients co-varied with Chl-a, which reflected a link between trophic status and water optical properties. An increase in total non-water absorption resulted in a shift of the maximum of downwelling irradiance to the longer wavelength (from 511 nm to 567 nm). Phytoplankton photosynthetic parameters were depth-dependent variables due to phytoplankton acclimations to light intensity without dependence on water trophic status. Gross primary production was estimated by the full spectral approach. Primary production (1.3–31 mgC/m3/h) co-varied with Chl-a. Chlorophyll a specific photosynthesis rate (4.3–8.0 mgC/mgChl/h) varied by about twice at the sea surface but no dependence on Chl-a was revealed.

查看原文本刊更多论文

塞瓦斯托波尔附近黑海沿岸水体营养状况对浮游植物生物光学特性和生产特性的影响

摘要2020年5月至2021年7月，在塞瓦斯托波尔附近的黑海沿岸水域测量了光谱生物光学特性和浮游植物光合参数。叶绿素a浓度（Chl-a）在不同站点之间的差异超过一个数量级（0.20–5.6 mg/m3）。所有光学活性组分的光吸收系数以及总的非水吸收系数与叶绿素a共同变化，这反映了营养状态与水的光学性质之间的联系。总非水吸收的增加导致下行辐照度的最大值向较长波长移动（从511 nm至567 nm）。浮游植物的光合参数是深度相关变量，这是由于浮游植物适应光照强度而不依赖于水的营养状态。初级生产总值是用全谱方法估算的。初级产量（1.3–31 mgC/m3/h）随Chl-a的变化而变化。叶绿素a比光合作用速率（4.3–8.0 mgC/mgChl/h）在海面上变化约两倍，但没有显示出对叶绿素a的依赖性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Marine Biology Research 生物-海洋与淡水生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Marine Biology Research (MBRJ) provides a worldwide forum for key information, ideas and discussion on all areas of marine biology and biological oceanography. Founded in 2005 as a merger of two Scandinavian journals, Sarsia and Ophelia, MBRJ is based today at the Institute of Marine Research, Bergen, Norway. The Journal’s scope encompasses basic and applied research from all oceans and marine habitats and on all marine organisms, the main criterium for acceptance being quality.