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Nutritional status of a nereidid polychaete cultured in sand filters of mariculture wastewater

Palmer, P.J. and Wang, S. and Houlihan, A. and Brock, I. (2014) Nutritional status of a nereidid polychaete cultured in sand filters of mariculture wastewater. Aquaculture Nutrition, 20 (6). pp. 675-691.

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Article URL: http://dx.doi.org/10.1111/anu.12129

Abstract

This study examined the nutritional composition of the intertidal marine polychaete Perinereis helleri (Nereididae)when artificially cultured in sand filters treating mariculture wastewater. Moisture levels in harvested P. helleri ranged from 758 to 855 g kg1, and ash, from 23 to 61 g kg1 wet matter (WM). Stocking density and graded size after harvest significantly affected their composition. Higher total lipid contents were found in large (>0.6 g) P. helleri(16–19 g kg1 WM) and those grown at the lowest density(1000 m2: 18 g kg 1 WM) than in small (≤0.6 g) ones
(14 g kg1 WM) and those grown at the highest densities
(4000–6000 m2: 13–16 g kg1 WM). Several fatty acids within a very broad profile (some 30 identified) reflected this pattern, yet their ARA/EPA/DHA ratios were relatively
unaffected. Feeding the polychaete-assisted sand filters
(PASF) with fish meal to increase worm biomass productivity
significantly increased their DHA content. Other components (e.g. protein, phospholipids, cholesterol, carbohydrate,
amino acids, nitrogen, minerals and bromophenols) and
nutritional factors (e.g. maturity, feeding seaweed and endemic shrimp viral content) were also investigated. Results suggest that PASF-produced P. helleri have a well-balanced nutritional profile for penaeid shrimp and fish broodstock.

Item Type:Article
Corporate Creators:Department of Agriculture, Fisheries and Forestry (DAFF)
Business groups:Animal Science
Subjects:Aquaculture and Fisheries > Aquaculture > Mariculture
Aquaculture and Fisheries > Aquaculture > Shellfish culture
Deposited On:12 May 2014 03:59
Last Modified:27 Jul 2015 01:56

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