Journal article
Relationship of carbon availability in estuarine phytoplankton to isotopic composition
Marine ecology. Progress series (Halstenbek), v 82(3)
1992
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The carbon isotope ratio of particulate carbon in an estuary can vary by at least 10‰ throughout the year. In this study, 2 periods of high primary productivity are compared from data collected in both spring and summer of 1987 and 1988 from the Delaware Estuary (USA). In spring, particulate carbon isotopic compositions (δ 13 C) were the positive (up to −17 ‰ ), whereas in CO2 concentrations within algal cells were used to show that growth of phytoplankton, especially in spring, may be limited summer the values were the most negative (to −32 ‰ ). Equations calculating the CO2 by the availability of dissolved carbon dioxide, CO2(d). An alternative hypothesis for the enrichment of 13C in diatoms from spring blooms includes the possibility that a mechanism for active bicarbonate accumulation is induced during high primary productivity. Similarly, a model is developed for phytoplankton growth during summer with CO2(d), rather than bicarbonate, being the species of dissolved inorganic carbon (DIC) transported across the membrane. The influence of respired CO2 on the isotopic composition of total DIC in summer is also calculated to explain the differences in isotopic compositions of particulate carbon. The demand for CO2(d) during periods of high primary productivity limits its availability to phytoplankton. This demand could easily be met by the induction of an active transport system for concentrating DIC, which could explain some of the variability in δ13C of particulate carbon in estuaries and oceans.
Metrics
Details
- Title
- Relationship of carbon availability in estuarine phytoplankton to isotopic composition
- Creators
- Marilyn L. FogelLuis A. CifuentesDavid J. VelinskyJonathan H. Sharp
- Publication Details
- Marine ecology. Progress series (Halstenbek), v 82(3)
- Publisher
- Inter-Research
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES)
- Web of Science ID
- WOS:A1992JA59400010
- Scopus ID
- 2-s2.0-0027037364
- Other Identifier
- 991020836500404721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Ecology
- Marine & Freshwater Biology
- Oceanography