Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Derivation of Populations with Different-Sized Eggs in the Palaemonid Prawn Macrobrachium Nipponense

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Journal of Crustacean Biology

Abstract Population-genetic and morphometric investigations were undertaken in 28 populations of the palaemonid prawn Macrobrachium nipponense with different-sized eggs which occur in different habitats from estuaries to inland waters of the Japanese islands, in order to elucidate the process of their differentiation. In estuarine populations with small eggs, allele frequencies in the Pgm locus changed with a cline along the Pacific coast. This appears to have resulted from infrequent unidirectional gene flow by sea current-mediated larval dispersal. Estuarine populations along the coast of the Sea of Japan, on the other hand, were genetically homogeneous, suggesting more frequent gene flow in them. Populations with medium and large eggs, which are observed in brackish- or fresh-water limnetic systems of sea-relict lake origin on both sides of the Japanese islands, are considered to have differentiated from estuarine populations after the Holocene marine transgression. Some lacustrine populations were significantly different in their genetic content and morphometric traits, implying their independent derivation.

Affiliations: 1: a Laboratory of Basic Biology, Teikyo University, Hachioji, Tokyo 192-0395, Japan ( kmashiko@main.teikyo-u.ac.jp) ; 2: b Ocean Research Institute, University of Tokyo, Nakano, Tokyo 164-8639, Japan

Loading

Full text loading...

/content/journals/10.1163/20021975-99990021
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/20021975-99990021
Loading

Article metrics loading...

/content/journals/10.1163/20021975-99990021
2000-01-01
2016-12-03

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Journal of Crustacean Biology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation