Established populations of Paracerceis sculpta (Isopoda) in the Northern Gulf of Mexico

Pablo Munguia, Stephen M Shuster

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

A population of the isopod Paracerceis sculpta Holmes, 1904 was found in Port Aransas, Texas in Northern Gulf of Mexico in 2009, the first report of the species in the Gulf of Mexico. The last large isopod survey in the area was conducted in 1981 implying that P. sculpta invaded some time in the last 28 years. Here, we show size frequency distributions of 858 individuals, alpha males (mean length = 5.48 mm ± 0.09 SE), pre-alpha males (3.94 mm ± 0.15), females (2.76 mm ± 0.03) and juveniles (1.24 mm ± 0.02). Beta and gamma males are absent in Texas, a major contrasting difference between the invasive and native populations.

Original languageEnglish (US)
Pages (from-to)137-139
Number of pages3
JournalJournal of Crustacean Biology
Volume33
Issue number1
DOIs
StatePublished - Jan 2013

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Keywords

  • Alternative mating strategies
  • Invasive species
  • Isopod
  • Range expansion

ASJC Scopus subject areas

  • Aquatic Science

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