KOPRI Repository

Macromolecular compositions of phytoplankton in the Amundsen Sea, Antarctica

Cited 7 time in scopus
Metadata Downloads
Title
Macromolecular compositions of phytoplankton in the Amundsen Sea, Antarctica
Authors
Kim, Bo Kyung
Lee, JangHan
Joo, HuiTae
Song, Ho Jung
Yang, Eun Jin
Lee, SangHoon
Lee, Sang Heon
Subject
Oceanography
Keywords
Biochemical composition; Phytoplankton; Food material; Amundsen Sea; Antarctica; Araon
Issue Date
2016
Citation
Kim, Bo Kyung, et al. 2016. "Macromolecular compositions of phytoplankton in the Amundsen Sea, Antarctica". Deep-Sea ResearchII,, 123(1): 42-49.
Abstract
The biochemical compositions (proteins, carbohydrates, and lipids) of phytoplankton provide useful information for their environmental growth conditions and nutritional status as a basic food source for upper trophic consumers. Concentrations of these compositions were assessed at 100, 30, and 1% light penetration depths within the euphotic zone in the Amundsen Sea, Antarctica, using colorimetric techniques. The major inorganic nutrients were generally abundant throughout the study area. The average chlorophyll a (chl-a) concentration was 49.2 mg m-2 (S.D.=±27.6 mg m-2) and large phytoplankton (>20m) accounted for 64.1% of the total chl-a concentration. The biochemical compositions of the phytoplankton were not significantly different among different light depths or productivity stations. The overall compositions of proteins, carbohydrates, and lipids from all stations averaged 65.9% (S.D.=±12.5%), 22.4% (S.D.=±10.9%), and 11.7% (S.D.=±6.5%), respectively. Regardless of dominant phytoplankton species, nitrogen-abundant conditions sustained high protein compositions of phytoplankton in the Amundsen Sea during the cruise period. Based on the macromolecular compositions, the average food material (FM) concentration was 219.4 μg L-1 (S.D.=±151.1 μg L-1) and correlated positively with the primary productivity in the Amundsen Sea. High protein/carbohydrate ratios (>1) and large proportions of proteins suggest that phytoplankton provide nitrogen-sufficient foods to higher trophic consumers through a higher efficiency of protein carbon incorporated into herbivores
DOI
http://dx.doi.org/10.1016/j.dsr2.2015.04.024
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse