High swimming and metabolic activity in the deep-sea eel Synaphobranchus kaupii revealed by integrated in situ and in vitro measurements

David M. Bailey, Bertrand Genard, Martin A. Collins, Jean-Francois Rees, Susan K. Unsworth, Emma J. V. Battle, Philip M. Bagley, Alan J. Jamieson, Imants G. Priede

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Several complementary studies were undertaken on a single species of deep-sea fish ( the eel Synaphobranchus kaupii) within a small temporal and spatial range. In situ experiments on swimming and foraging behaviour, muscle performance, and metabolic rate were performed in the Porcupine Seabight, northeast Atlantic, alongside measurements of temperature and current regime. Deep-water trawling was used to collect eels for studies of animal distribution and for anatomical and biochemical analyses, including white muscle citrate synthase ( CS), lactate dehydrogenase (LDH), malate dehydrogenase (MDH), and pyruvate kinase (PK) activities. Synaphobranchus kaupii demonstrated whole-animal swimming speeds similar to those of other active deep-sea fish such as Antimora rostrata. Metabolic rates were an order of magnitude higher (31.6 mL kg(-1) h(-1)) than those recorded in other deep-sea scavenging fish. Activities of CS, LDH, MDH, and PK were higher than expected, and all scaled negatively with body mass, indicating a general decrease in muscle energy supply with fish growth. Despite this apparent constraint, observed in situ burst or routine swimming performances scaled in a similar fashion to other studied species. The higher-than-expected metabolic rates and activity levels, and the unusual scaling relationships of both aerobic and anaerobic metabolism enzymes in white muscle, probably reflect the changes in habitat and feeding ecology experienced during ontogeny in this bathyal species.

Original languageEnglish
Pages (from-to)335-346
Number of pages12
JournalPhysiological and Biochemical Zoology
Volume78
Issue number3
DOIs
Publication statusPublished - May 2005

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Eels
eel
Oceans and Seas
Fish
Muscle
Fishes
Citrate (si)-Synthase
Muscles
muscles
Malate Dehydrogenase
pyruvate kinase
citrate (si)-synthase
Pyruvate Kinase
malate dehydrogenase
lactate dehydrogenase
L-Lactate Dehydrogenase
marine fish
Animals
Porcupines
Animal Distribution

Keywords

  • Biscay Continental-Slope
  • demersal fishes
  • porcupine seabight
  • functional-morphology
  • midwater crustaceans
  • chemical-composition
  • oxygen-consumption
  • Northeast Atlantic
  • food availability
  • anguilla-anguilla

Cite this

Bailey, D. M., Genard, B., Collins, M. A., Rees, J-F., Unsworth, S. K., Battle, E. J. V., ... Priede, I. G. (2005). High swimming and metabolic activity in the deep-sea eel Synaphobranchus kaupii revealed by integrated in situ and in vitro measurements. Physiological and Biochemical Zoology, 78(3), 335-346. https://doi.org/10.1086/430042

High swimming and metabolic activity in the deep-sea eel Synaphobranchus kaupii revealed by integrated in situ and in vitro measurements. / Bailey, David M.; Genard, Bertrand; Collins, Martin A.; Rees, Jean-Francois; Unsworth, Susan K.; Battle, Emma J. V.; Bagley, Philip M.; Jamieson, Alan J.; Priede, Imants G.

In: Physiological and Biochemical Zoology, Vol. 78, No. 3, 05.2005, p. 335-346.

Research output: Contribution to journalArticle

Bailey, DM, Genard, B, Collins, MA, Rees, J-F, Unsworth, SK, Battle, EJV, Bagley, PM, Jamieson, AJ & Priede, IG 2005, 'High swimming and metabolic activity in the deep-sea eel Synaphobranchus kaupii revealed by integrated in situ and in vitro measurements', Physiological and Biochemical Zoology, vol. 78, no. 3, pp. 335-346. https://doi.org/10.1086/430042
Bailey, David M. ; Genard, Bertrand ; Collins, Martin A. ; Rees, Jean-Francois ; Unsworth, Susan K. ; Battle, Emma J. V. ; Bagley, Philip M. ; Jamieson, Alan J. ; Priede, Imants G. / High swimming and metabolic activity in the deep-sea eel Synaphobranchus kaupii revealed by integrated in situ and in vitro measurements. In: Physiological and Biochemical Zoology. 2005 ; Vol. 78, No. 3. pp. 335-346.
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AU - Unsworth, Susan K.

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