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Targeting the live market: recovery of Norway lobsters Nephrops norvegicus (L.) from trawl-capture as assessed by stress-related parameters and nucleotide breakdown

By A. Albalat, S. Sinclair, J. Laurie, A. Taylor and D.M. Neil


The recovery potential of Norway lobsters (Nephrops norvegicus) held in on-board seawater tanks after trawl-capture was assessed at two different times of the year (winter and summer). Survival recorded 24 h after trawl-capture was 84.83 ± 0.93% in the winter compared to 75.35 ± 2.92% in the summer. Stress-related parameters in the muscle (arginine phosphate, glycogen and L-lactate) and in the haemolymph (L-lactate) were measured, together with nucleotide breakdown products in the muscle (yielding the “Adenylate Energy Charge” or AEC ratio). All parameters analysed were responsive to the stress of the trawl-capture and subsequently recovered towards resting values, but did so at different rates. The fact that some measures recovered at a faster rate than others should be taken into account when trying to develop an index of metabolic stress for this species. Animals trawled in the winter recovered to AEC values above 0.8 within 4 h of placing them in on-board seawater tanks, whereas animals trawled in the summer took 24 h to reach these values. Furthermore, at the end of the trials animals trawled in the summer presented significantly higher haemolymph L-lactate and lower muscle glycogen reserves than the animals trawled in the winter, suggesting a faster recovery in the winter compared to the summer. Finally, animals in the winter were better able to endure further stresses (an emersion of 1 h while animals were transported to the commercial handling facilities). Therefore, as a code of practice it is advised that trawled N. norvegicus directed to the live trade should be allowed to recover for at least 4–6 h in on-board tanks, and extra care should be taken especially in the summer, if further stresses such as additional emersion are to be applied within the first 24 h after capture

Publisher: Elsevier
Year: 2010
OAI identifier: oai:eprints.gla.ac.uk:45017
Provided by: Enlighten

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  15. (1985). Effect of hypoxia on the respiratory and circulatory regulation of Nephrops norvegicus. doi
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  17. (2008). Effects of emersion-induced hypoxia on some haemolymph constituents on Nephrops norvegicus. doi
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  20. (1983). Energy metabolism in the tail muscle of the shrimp Crangon crangon during work and subsequent recovery. doi
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  22. (2009). Fish and Nephrops Stock Information.
  23. (1998). Gender- and oxygen-related irrigation behaviour of the decapod Nephrops norvegicus. doi
  24. (1997). Haemolymph chemistry of tropical rock lobsters (Panulirus ornatus) brought onto a mother ship from a catching dinghy doi
  25. (2006). Impact of capture method and trawl duration on the health status of the Norway lobster, Nephrops norvegicus. doi
  26. (1987). In situ measurements of adenylate energy charge and assessment of pollution. doi
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  28. (1986). Live handling and transport of crustacean shellfish: an investigation on mortalities.
  29. (1997). Maintaining rock lobsters in prime condition on board lobsters boats – Part 1.
  30. (2006). Morbidity and mortality in Norway lobsters, Nephrops norvegicus: physiological, immunological and pathological effects of aerial exposure. doi
  31. (1999). Muscle IMP accumulation during fatiguing submaximal exercise in endurance trained and untrained men. doi
  32. (1971). Observations on the burrows and burrowing behaviour of two mud-dwelling decapod crustaceans, Nephrops norvegicus and Goneplax rhomboides. doi
  33. (2001). Optimized method for the determination of phosphoarginine in abalone tissue by high-performance liquid chromatography. doi
  34. (1992). Oxygen and acid-base disturbances in the haemolymph of the lobster Homarus gammarus during commercial transport and storage. doi
  35. (1989). Oxygen transport and acid-base balance in the haemolymph of the lobster, Homarus gammarus, during aerial exposure and resubmersion.
  36. (1991). Physiological and metabolic responses of the shore crab Carcinus maenas (L.) during environmental recovery. doi
  37. (1988). Physiological ecology of burrowing decapods.
  38. (1997). Physiology and live transport of lobsters: report from a workshop. doi
  39. (1994). Post-exercise lactate production and metabolism in three species of aquatic and terrestrial decapod crustaceans.
  40. (2009). Recovery by the Norway lobster Nephrops norvegicus (L.) from the physiological stresses of trawling: Influence of season and livestorage condition. doi
  41. (1994). Report of the sub-group on methodology of fish survival experiments.
  42. (2007). Stress effect of different temperatures and air exposure during transport on physiological profiles in the American lobster Homarus americanus. doi
  43. (1997). Stress indicators in marine decapod crustaceans, with particular reference of western rock lobsters (Panulirus cygnus) during commercial handling. doi
  44. (1988). Swimming performance and endurance of the Norway lobster Nephrops norvegicus. doi
  45. (1980). The adenylate energy charge in the estuarine mollusc, Pyrazus ebeninus. Laboratory studies of responses to salinity and temperature. doi
  46. (1956). The determination of glycogen in the liver and muscle by use of the anthrone reagent.
  47. (2002). The effects of repeated dredging and speed of tow on undersized scallops. doi
  48. (2009). The effects of trawling on the physical condition of the Norway lobster Nephrops norvegicus in relation to seasonal cycles in the Clyde Sea area. doi
  49. (1968). The energy charge of the adenylate pool as regulatory parameter. Interaction with feedback modifiers. doi
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