Skip to main content

Free Content Temperature and relative humidity effects on water loss and emersion tolerance of Perna perna (L.) (Bivalvia: Mytilidae) from the Gulf of Mexico

Download Article:
 Download
(PDF 173 kb)
 

Abstract:

Impacts of temperature (15°, 25°, and 35°C), relative humidity (RH: <5%, 33%, 53%, 75%, >95%), individual size (10–90 mm), and aerial gaping behavior on evaporative water loss rates and emersion tolerance were investigated in the nonindigenous brown mussel, Perna perna. Emersion tolerance was influenced by air temperature. Median survival times in 100% RH at 15°C were 2.5- and 10-fold greater than those at 25°C and 35°C, respectively. Emersion tolerance increased with increasing RH and was most pronounced at 15°C. Water loss rates were affected by temperature and RH. After emersion, most specimens gaped and lost their extracorporal mantle water. At all test temperatures, water loss rates were negatively correlated with RH. Reduction in water loss rate was associated with increased emersion tolerance. Frequency of gaping increased with increasing temperature and decreasing RH, leading to increased water loss rates. Emersion tolerance and behavioral responses in P. perna were similar to those of lower eulittoral and subtidal mytilids, reflecting this species' restriction to low-shore habitats.

Document Type: Research Article

Publication date: January 1, 2003

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
umrsmas/bullmar/2003/00000072/00000001/art00009
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more