Near-Infrared Spectroscopy as a Novel Non-Invasive Tool to Assess Spiny Lobster Nutritional ConditionReport as inadecuate




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Rapid non-invasive monitoring of spiny lobster nutritional condition has considerable application in the established fishery, live market and prospective aquaculture. The aim of this research was to test the feasibility of near-infrared spectroscopy NIRS as a novel non-invasive tool to assess the nutritional condition of three lobster species. Lobster n = 92 abdominal muscle dry matter AMDM and carbon content AMC correlated significantly with indices of nutritional condition including hepatopancreas dry matter HPDM; rho = 0.83, 0.78, total lipid content HPTL; rho = 0.85, 0.87 and haemolymph total protein TP; rho = 0.89, 0.87 respectively. Abdominal muscle nitrogen content AMN was a poor correlate of nutritional condition. Models based on FT-NIR scanning of whole lobster tails successfully predicted AMDM, AMN and AMC RMSECV = 1.41%, 0.35% and 0.91%; R2 = 0.75, 0.65, 0.77, respectively, and to a lower accuracy HPDM, HPTL and TP RMSECV = 6.22%, 8.37%, 18.4 g l-1; R2 = 0.51, 0.70, 0.83, respectively. NIRS was applied successfully to assess the condition of spiny lobsters non-invasively. This pilot study paves the way for the development of crustacean condition models using portable non-invasive devices in the laboratory or in the field.



Author: Cedric J. Simon , Thomas Rodemann, Chris G. Carter

Source: http://plos.srce.hr/



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