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The Metabolic Balance of Planktonic Communities
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The Metabolic Balance of Planktonic Communities

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Ecology".

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 3819

Special Issue Editor

Dr. Aurore Regaudie De Gioux

E-Mail Website
Guest Editor
Ifremer, Centre Bretagne, 1625 route de Sainte Anne, 29280 Plouzané, France
Interests: marine biogeochemistry; ecology; phytoplankton

Special Issue Information

Dear Colleagues,

The journals Plants will be publishing a Special Issue on the metabolic balance of planktonic communities. The metabolism of planktonic communities in the oceans plays a major biogeochemical role on Earth, contributing with about 50 % of the organic carbon produced by photosynthesis. Because of that, oceanic primary production alters global processes of air-sea exchange, particularly the atmospheric carbon dioxide (CO2) partial pressure. In contrast to the dominance of autotrophic biomass on land, this small photosynthetic biomass supports a comparatively larger biomass of heterotrophs in the ocean, which is associated with a high heterotrophic activity in oceanic plankton communities. Thus, the metabolic balance of planktonic communities (gross primary production, GPP vs. respiration, CR) is a piece of essential knowledge for understanding the ocean ecosystem. The carbon originated from planktonic primary production fuels marine food webs with organic matter, however, the diverse pool of organisms operationally grouped as phytoplankton displays ample ranges of sizes, nutrient acquisition, and growth strategies, and much work is still necessary to properly quantify primary production in the ocean, which lacks measurements in several regions in the globe. Through ocean warming, increase of UV radiation, ocean acidification, anthropogenic activities and etc, climate change may affect directly and indirectly and change the metabolic balance of planktonic communities enhancing heterotrophic (CR) or autotrophic activities (GPP). Considering the major role of the metabolic balance of planktonic communities on marine biogeochemical cycles and particularly on carbon budget, this Special Issue will aim to contribute to improve our understanding and our knowledge of planktonic metabolism and its role on the global carbon cycle.

Dr. Aurore Regaudie De Gioux
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • phytoplankton
  • primary production
  • respiration
  • biogeochemical cycles

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Published Papers (2 papers)

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Research

15 pages, 9492 KiB  
Article
Seasonal and Spatial Variability of Phytoplankton Primary Production in a Shallow Temperate Coastal Lagoon (Ria Formosa, Portugal)
by Rita B. Domingues
Plants 2022, 11(24), 3511; https://doi.org/10.3390/plants11243511 - 14 Dec 2022
Cited by 2 | Viewed by 1840
Abstract
Coastal lagoons are among the most productive ecosystems in the world, and they provide a wide range of ecosystem services and resources. In the Ria Formosa (southern Portugal), phytoplankton production has rarely been addressed. The main goal of this study is thus to [...] Read more.
Coastal lagoons are among the most productive ecosystems in the world, and they provide a wide range of ecosystem services and resources. In the Ria Formosa (southern Portugal), phytoplankton production has rarely been addressed. The main goal of this study is thus to evaluate the variability of phytoplankton production and photosynthetic characteristics over the seasonal cycle and in different locations (landward, urban, intermediate, and seaward boundaries) of the Ria Formosa coastal lagoon, subjected to distinct natural and anthropogenic stressors. Primary production was evaluated using the 14C incorporation technique, and photosynthetic parameters were estimated by fitting photosynthesis-irradiance curves. Primary production showed significant seasonal variations, with higher values in the summer associated with lower euphotic depths, higher water temperatures, and higher nutrient concentrations. No spatial differences were found for primary production or photosynthetic parameters. Primary production values were lower than previous estimates, which reflects an improvement in water quality in the Ria Formosa, but values are higher than primary production estimates for other temperate coastal ecosystems, which reflects the highly productive nature of this coastal lagoon. Full article
(This article belongs to the Special Issue The Metabolic Balance of Planktonic Communities)
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14 pages, 1898 KiB  
Article
Plankton Community Respiration and Particulate Organic Carbon in the Kuroshio East of Taiwan
by Chung-Chi Chen, Pei-Jie Meng, Chih-hao Hsieh and Sen Jan
Plants 2022, 11(21), 2909; https://doi.org/10.3390/plants11212909 - 29 Oct 2022
Cited by 2 | Viewed by 1662
Abstract
Biological organic carbon production and consumption play a fundamental role in the understanding of organic carbon cycling in oceans. However, studies on them in the Kuroshio, the western boundary current in the North Pacific Ocean, are scarce. To better understand the variations of [...] Read more.
Biological organic carbon production and consumption play a fundamental role in the understanding of organic carbon cycling in oceans. However, studies on them in the Kuroshio, the western boundary current in the North Pacific Ocean, are scarce. To better understand the variations of plankton community respiration (CR) and particulate organic carbon (POC), eight cruises. which covered four seasons over a 2-year period, were surveyed across the Kuroshio at the KTV1 transect east of Taiwan. Spatially, a coastal uplift of isotherms (i.e., onshore lifting and offshore deepening) was observed along the KTV1 transect. During the uplift, the cold and nutrient-rich deep waters shoal to shallow water and enhance phytoplankton growth, resulting in higher values of phytoplankton, POC, and plankton CR on the onshore side. In this study, phytoplankton was dominated by picophytoplankton including Prochlorococcus, Synechococcus, and picoeukaryotes. Plankton CR was low, and its mean depth-normalized integrated rate (the upper 100 m water depth) ranged from 7.07 to 22.27 mg C m−3 d−1, to which the picophytoplankton and heterotrophic bacteria contributed the most. The mean depth-normalized integrated value of POC ranged from 12.7 to 21.6 μg C L−1. POC is mainly associated with phytoplankton biomass with a mean carbon ratio of chlorophyll a/POC ≈ 1.03. All results suggest that plankton CR and POC variations may be associated with picoplankton dynamics in the Kuroshio. Full article
(This article belongs to the Special Issue The Metabolic Balance of Planktonic Communities)
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