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Effect of ammonia on the growth rate and oxygen consumption of juvenile greenlip abalone, Haliotis laevigata Donovan

journal contribution
posted on 2023-05-16, 11:07 authored by Harris, JO, Maguire, GB, Edwards, SJ, Hindrum, SM
Juvenile greenlip abalone, Haliotis laevigata, (mean whole weight 4.48 ± 1.9 g, mean ± s.d., n = 953) were highly sensitive to ammonia as indicated by depressed growth rate and food consumption measured over 2-3 months in bioassay tanks. For growth rate expressed on a whole weight basis, the EC 5 and EC 50 values (5 and 50% growth reductions) were 0.041 mg FAN l -1 (Free Ammonia-Nitrogen) and 0.158 mg FAN l -1, respectively. Shell growth rates declined over the entire experimental range (0.006-0.188 mg FAN l -1). At the end of the bioassay, groups of abalone were transferred to respiratory chambers. Oxygen consumption rate increased to a maximum of 188% of control values at 0.235 mg FAN l -1 and decreased slightly at the highest concentration of 0.418 mg FAN l -1.

History

Publication title

Aquaculture

Volume

160

Issue

3-4

Pagination

259-272

ISSN

0044-8486

Department/School

Institute for Marine and Antarctic Studies

Publisher

Elsevier

Place of publication

The Netherlands

Repository Status

  • Restricted

Socio-economic Objectives

Fisheries - aquaculture not elsewhere classified

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