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Integumental nutrient uptake by aquatic organisms.

S H Wright1, D T Manahan

  • 1Department of Physiology, University of Arizona, Tucson 85724.

Annual Review of Physiology
|January 1, 1989
PubMed
Summary
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Marine invertebrates absorb dissolved organic matter (DOM) through their skin, a process vital for nutrition. This integumental nutrient transport efficiently utilizes low-concentration seawater resources to meet metabolic demands.

Area of Science:

  • Marine Biology
  • Animal Physiology
  • Biochemistry

Background:

  • Soft-bodied marine invertebrates utilize integumental nutrient transport.
  • This process is similar to nutrient transporters in intestinal epithelia.
  • It is adapted for low substrate concentrations in seawater.

Purpose of the Study:

  • To investigate the mechanism and regulation of integumental nutrient transport.
  • To understand the metabolic fate of accumulated dissolved organic matter (DOM).
  • To determine the role of DOM in aquatic organism nutrition.

Main Methods:

  • Kinetic and energetic analysis of nutrient uptake.
  • Studies on the regulation of transport processes.
  • Investigation of DOM distribution in marine environments.

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Main Results:

  • Integumental transport is efficient in accumulating materials from low-concentration seawater.
  • DOM uptake rates are substantial, supporting significant metabolic needs.
  • Larval invertebrates may rely heavily on integumental DOM uptake for nutrition.

Conclusions:

  • Integumental nutrient transport plays a crucial role in the nutrition of marine invertebrates.
  • Further research will clarify the mechanisms, regulation, and ecological significance of DOM uptake.
  • This process is essential for understanding nutrient cycling in aquatic ecosystems.