Marine Biology

, Volume 139, Issue 4, pp 681–685

The relationship between dissolved oxygen concentration and maximum size in deep-sea turrid gastropods: an application of quantile regression

Authors

  •  C. McClain
    • Department of Biology, University of Massachusetts, Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
  •  M. Rex
    • Department of Biology, University of Massachusetts, Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA

DOI: 10.1007/s002270100617

Cite this article as:
McClain, C. & Rex, M. Marine Biology (2001) 139: 681. doi:10.1007/s002270100617

Abstract.

Bathymetric gradients in body size are the most well-known patterns of geographic variation in deep-sea organisms. The causes of size–depth relationships remain uncertain, but most have been attributed to rates of nutrient input. Chapelle and Peck (1999, Nature 399:114–115) recently hypothesized that body size in marine invertebrates is a function of dissolved oxygen concentration. We tested this hypothesis by using quantile regression techniques to assess the relationship of dissolved oxygen levels to maximum size in deep-sea turrid gastropods collected from the North Atlantic. Relationships were examined for a group of nine turrid species and within the abundant lower bathyal species Benthomangelia antonia (Dall, 1881). We controlled the analysis for depth because size in deep-sea gastropods varies bathymetrically. When the effects of depth are accounted for statistically, maximum size in B. antonia increases with increasing levels of dissolved oxygen. In turrids as a group, both depth and oxygen appear to explain significant proportions of the variance in maximum size. These findings suggest that a suite of factors, including dissolved oxygen concentration, may influence maximum size in deep-sea organisms.

Copyright information

© Springer-Verlag 2001