Title: An extraordinary reproductive strategy in freshwater bivalves: prey mimicry to facilitate larval dispersal
Author: Haag, Wendell; Butler, Robert S.; Hartfield, Paul D.
Source: Freshwater Biology (1995) 34, 471-476
Publication Series: Not categorized
Description: 1. Females of the North American freshwater bivalve Lampsilis provalis release their larvae, which are obligate parasites on fish, in a discrete mass (superconglutinate) resembling a small fish in shape and coloration. After release, the mass remains tethered to the female by a long, transparent, mucous strand and, in stream currents, displays a darting motion that further mimics a small fish.
2. Release of superconglutinates was observed in March and April at water temperatures of 14-17°C. However, superconglutinates detached from the parent mussel were observed from March to June at water temperatures of 11-26°C, indicating that release may occur into the summer.
3. The superconglutinate lure may function to attract a predaceous fish to ingest the mass, ensuring that the larvae are exposed to a suitable host.
4. This reproductive strategy was confirmed recently to occur in a congener, L. subangulata and is suspected to occur in another congener, L. australis.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
XML: View XML
Haag, Wendell; Butler, Robert S.; Hartfield, Paul D. 1995. An extraordinary reproductive strategy in freshwater bivalves: prey mimicry to facilitate larval dispersal. Freshwater Biology (1995) 34, 471-476
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility