Divergence in skeletal mass and bone morphology in antarctic notothenioid fishes. (August 2014)

• Record Type: Journal Article
• Authors: Eastman, Joseph T.; Witmer, Lawrence M.; Ridgely, Ryan C.; Kuhn, Kristen L.
• Is Part Of: Journal of morphology. Volume 275:Number 8(2014:Aug.)
• Page Start: NA
• Page End: NA
• Publication Date: 2014-08
• Subjects: Morphology -- Periodicals; Physiology -- Periodicals; Anatomy -- Periodicals; 571.3
• DOI: 10.1002/jmor.20308
• Languages: English
• ISSNs: 0362-2525

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p> <bold>Cover illustration</bold>. Notothenioid fishes lack swim bladders, but species live temporarily or permanently in the water column. Without swim bladder, skeletal mass becomes a key determinant of buoyancy. In this issue of the Journal of Morphology, Joseph Eastman and coauthors (pp. 841–861 <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">10.1002/jmor.20258</ext-link>) quantify the degree of skeletal ossification in notothenioid fish and discuss it in phylogenetic context. The cover image shows a volume rendered micro‐CT image showing extensive bone in the adult skeleton of the non‐Antarctic notothenioid <italic>Bovichtus diacanthus</italic> from Tristan da Cunha. Tissue density is mapped in false color on a spectrum ranging from less dense (cool colors) to more dense (warm colors). Bone is considerably more extensive in <italic>B. diacanthus</italic> than in Antarctic notothenioids.</p> </abstract>