Monitoring of cadmium accumulation in cephalopods processed in Gujarat coast

Panda Satyen Kumar, . and Murthy L. Narasimha, . and Khasim D. Imam, . and Badonia Rajendra, . Monitoring of cadmium accumulation in cephalopods processed in Gujarat coast. pp. 319-330. ISSN 0116-6514

Heavy metal accumulation in cephalopods has been one of the intricate issues in seafood export scenario in India. In recent years many export consignments of cephalopods processed in Gujarat region were rejected on account of high levels of cadmium. To elucidate this problem cephalopods landed at different landing centres and processed by various processing units were monitored during the period 2006-07. Among commercial samples of cephalopods cuttlefish tentacles (0.520.08 ppm) squid tentacles (0.280.02 ppm) and frozen octopus (0.590.1 ppm) recorded highest accumulation of Cadmium. Organ-specific analysis revealed highest accumulation of Cd in the gut of Sepiella inermis (3.340.43 ppm) and Squid Uroteuthis (Photololigo) duvauceli (5.310.43 ppm). Similarly in the Purpleback flying squid Sthenoteuthis oualaniensis which is now a days landed by multiday fishing trawlers highest residue level of Cd was observed in the liver (568.5 15 ppm) followed by gills eyes and tentacles. Among different species of Octopus highest accumulation was recorded in Octopus macropus (2.28 1.11 ppm) followed by O. membranaceus (1.86 0.35 ppm) and O. defilippi (1.72 0.82 ppm). In order to find out the source of Cd simulation studies were carried out by soaking squid muscle in ink signifying the fact that poor post harvest handing and consequent rupture of ink sac followed by soaking in ink-mixed water could be a reason behind high levels of Cd accumulation in cephalopods landed in Gujarat coast.

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Abstract

Heavy metal accumulation in cephalopods has been one of the intricate issues in seafood export scenario in India. In recent years many export consignments of cephalopods processed in Gujarat region were rejected on account of high levels of cadmium. To elucidate this problem cephalopods landed at different landing centres and processed by various processing units were monitored during the period 2006-07. Among commercial samples of cephalopods cuttlefish tentacles (0.520.08 ppm) squid tentacles (0.280.02 ppm) and frozen octopus (0.590.1 ppm) recorded highest accumulation of Cadmium. Organ-specific analysis revealed highest accumulation of Cd in the gut of Sepiella inermis (3.340.43 ppm) and Squid Uroteuthis (Photololigo) duvauceli (5.310.43 ppm). Similarly in the Purpleback flying squid Sthenoteuthis oualaniensis which is now a days landed by multiday fishing trawlers highest residue level of Cd was observed in the liver (568.5 15 ppm) followed by gills eyes and tentacles. Among different species of Octopus highest accumulation was recorded in Octopus macropus (2.28 1.11 ppm) followed by O. membranaceus (1.86 0.35 ppm) and O. defilippi (1.72 0.82 ppm). In order to find out the source of Cd simulation studies were carried out by soaking squid muscle in ink signifying the fact that poor post harvest handing and consequent rupture of ink sac followed by soaking in ink-mixed water could be a reason behind high levels of Cd accumulation in cephalopods landed in Gujarat coast.

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Item Type:	Article
AGROVOC Term:	Cephalopods
AGROVOC Term:	Cephalopoda
AGROVOC Term:	Squids
AGROVOC Term:	Aquatic animals
AGROVOC Term:	Biomonitoring
AGROVOC Term:	Simulation
AGROVOC Term:	Soaking
AGROVOC Term:	Toxic substances
AGROVOC Term:	Cadmium
AGROVOC Term:	Heavy metals
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/7967

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