Vertical distribution of dissolved free amino acids and phytoplankton and zooplankton biomasses.

Authors

  • Víctor A. Troncoso Facultad de Ciencias, Universidad Católica Ssma. Concepción, Talcahuano.
  • José Iriarte 2Department of Oceanography, Texas A&M University, College Station, Texas 77840.
  • Humberto González sAlfred-Wegener Instituí ftír Polar und Meeresforschung. An Handelhafen 12. D-2850, Bremerhaven, F.R.G.
  • Victorino Martínez Vicaría Pastoral Obrera, Area Pesquera, Arzobispado Ssma. Concepción, Concepción.

DOI:

https://doi.org/10.21703/0067-8767.1991.20.2554

Keywords:

DFAA, Chlorophyil, Copepods, Concepción Bay, Chile

Abstract

Dissolved Free Amino Acids (DFAA) concentra tions were measured in the water column during a night and day sampling period, following a Lagrangian drogue within Concepción Bay (Chile). For the night-time sampling period no correlations between DFAA and either chlorophyll-fl or zooplankton were observed, although a positive and significant correlation between phytoplankton and zooplankton biomass did exist. During the day chlorophyll-fl and DFAA were correlated throughout the water column, suggesting that excretion, enhanced by photosynthetic activity of primary producers was occurring.

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Published

2024-01-25

Issue

No. 20 (1991): Biología Pesquera

Section

Artículos

How to Cite

Vertical distribution of dissolved free amino acids and phytoplankton and zooplankton biomasses. (2024). Biologia Pesquera, 20, 61-64. https://doi.org/10.21703/0067-8767.1991.20.2554