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Structure and function of the tracheal gills of Molanna angustata CURT

  • W. Wichard
Conference paper

Abstract

The respiratory epithelium of the tracheal gills of Molanna angustata CURT. (Molannidae) has numerous tracheoles which are extracellularly located in deep invaginations within the epithelium. The tracheoles are regularly distributed just below the cuticle and run parallel to the longitudinal axis of the gill filaments. The amount of respiratory surface area of the larval tracheal gills depends on both the size and the number of the gills. The size of the tracheal gills is related to the larval body size, whereas the number of the gills is also determined by the environmental oxygen tension. The larvae are regulators above a critical level of oxygen tension, but below it they are conformers.

Keywords

Oxygen Tension Instar Larva Respiratory Epithelium Morphological Adaptation Gill Filament 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer Science+Business Media Dordrecht 1978

Authors and Affiliations

  • W. Wichard

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