hrvatski jezikClear Cookie - decide language by browser settings

Selection of target mussel tissue for application of cellular energy allocation as a physiological biomarker in native mussels Mytilus galloprovincialis (Lamarck, 1819)

Erk, Marijana; Ivanković, Dušica; Strižak, Željka (2012) Selection of target mussel tissue for application of cellular energy allocation as a physiological biomarker in native mussels Mytilus galloprovincialis (Lamarck, 1819). Journal of Shellfish Research, 31 (1). pp. 61-68. ISSN 0730-8000

[img]
Preview
PDF - Published Version
Download (730kB) | Preview

Abstract

Three selected mussel tissues (digestive gland, mantle, and gills) were studied to determine which was the most suitable for the potential use of the cellular energy allocation (CEA) methodology in indigenous mussels Mytilus galloprovincialis. In addition, the applicability of CEA in the assessment of natural stress caused by salinity fluctuations in stratified estuary was tested in selected tissues. It was important to identify the mussel gender to assess reliably the changes in organism energy budget. CEA value was calculated as a ratio between available energy (Ea) and energy consumption (Ec). Mantle tissue was under the strongest influence of the differences in protein and lipid content between male and female mussels, and therefore reflected physiological changes in the organism itself, rather than those caused by natural environmental stress. CEA in gills had lower values than in mantle and digestive gland, and was similar at two selected sampling sites, so the changes in CEA caused by natural stress could not be detected in the gill tissue. Greater Ec in mussels from the estuarine site than from the coastal site was detected only in the digestive gland tissue, and can probably be attributed to the energetically costly maintenance of osmotic balance. Last, using digestive gland tissue in CEA analysis demonstrated a clear difference between coastal and estuarine sampling sites, providing the measure of the natural stress posed by variations in salinity.

Item Type: Article
Uncontrolled Keywords: cellular energy allocation; mussel Mytilus galloprovincialis; digestive gland tissue; mantle tissue; gill tissue
Subjects: NATURAL SCIENCES > Interdisciplinary Natural Sciences > Marine Science
NATURAL SCIENCES > Interdisciplinary Natural Sciences > Environmental Science
Divisions: Division for Marine and Enviromental Research
Projects:
Project titleProject leaderProject codeProject type
Stanične promjene u vodnih organizama pobuđene metalima[40333] Biserka Raspor098-0982934-2721MZOS
Depositing User: Marijana Erk
Date Deposited: 03 Nov 2014 10:21
Last Modified: 03 Nov 2014 10:30
URI: http://fulir.irb.hr/id/eprint/1567
DOI: 10.2983/035.031.0108

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year