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Marine Biology

, Volume 150, Issue 6, pp 1397–1401 | Cite as

Enhanced survival of 0-group gadoid fish under jellyfish umbrellas

  • Christopher P. LynamEmail author
  • Andrew S. Brierley
Research Article

Abstract

Young (0-group) gadoid fish, which have been observed sheltering beneath jellyfish (Scyphozoa and Hydrozoa) umbrellas, may find refugia from predation by retreating among medusan tentacles. The survival of juvenile gadoids may therefore be improved by high abundances of medusae. Jellyfish (including Cyanea lamarckii and C. capillata) were caught in the North Sea during routine sampling for 0-group gadoids (cod Gadusmorhua, haddock Melanogrammus aeglefinus, Norway pout Trisopterus esmarkii and whiting Merlangius merlangus) between 1971 and 1986, and considerable overlaps have been shown between the spatial distributions of these fish and medusae. Here correlations are made between the abundance of medusae in the North Sea and the residual survival of 0-group fish, as quantified by the deviation in 1-group recruitment from the expected Ricker modelled estimate. Significant positive correlations between the residual survival of whiting and medusa abundance are evident for each individual Cyanea sp. and for the combined Cyanea spp. ln(maximum) abundance (all R ≥ 0.60, P < 0.01, N = 15). The abundance of jellyfish may thus be an important factor influencing the mortality of whiting in the North Sea, and as such should be considered in the development of ‘ecosystem-based’ management of whiting stocks.

Keywords

North Atlantic Oscillation Index Spawn Stock Biomass Residual Survival Commensal Relationship Jellyfish Abundance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We are grateful to S. Hay and colleagues at FRS Marine Laboratory, Aberdeen, who collected the jellyfish data. We also thank S. Reimert of ICES for the hydrographic data and J. Hurrell for making the NAOI data freely available. C.P.L. was funded by the Natural Environment Research Council, UK.

References

  1. Bailey RS (1975) Observations on diel behaviour patterns of North Sea gadoids in the pelagic phase. J Mar Biol Assoc UK 55:133–142CrossRefGoogle Scholar
  2. Beaugrand G (2004) The North Sea regime shift: evidence, causes, mechanisms and consequences. Prog Oceanogr 60:245–262CrossRefGoogle Scholar
  3. Belkin IM, Levitus S, Antonov J, Malmberg SA (1998) “Great Salinity Anomalies” in the North Atlantic. Prog Oceanogr 41:1–68CrossRefGoogle Scholar
  4. Bjorke H, Saetre R (1994) Transport of larvae and juvenile fish into central and northern Norwegian waters. Fish Oceanogr 3:106–119CrossRefGoogle Scholar
  5. Brodeur RD (1998) In situ observations of the association between juvenile fishes and scyphomedusae in the Bering Sea. Mar Ecol Prog Ser 163:11–20CrossRefGoogle Scholar
  6. Bromley PJ, Watson T, Hislop JRG (1997) Diel feeding patterns and the development of food webs in pelagic 0-group cod (Gadus morhua L.), haddock (Melanogrammus aeglefinus L.), whiting (Merlangius merlangus L.), saithe (Pollachius virens L.), and Norway pout (Trisopterus esmarkii Nilsson) in the northern North Sea. ICES J Mar Sci 54:846–853CrossRefGoogle Scholar
  7. Browne JG, Kingsford MJ (2005) A commensal relationship between the scyphozoan medusae Catostylus mosaicus and the copepod Paramacrochiron maximum. Mar Biol 146(6):1157–1168CrossRefGoogle Scholar
  8. Coull KA, Johnstone R, Rogers SI (1998) Fisheries sensitivity maps in British Waters. Published and distributed by UKOOA LtdGoogle Scholar
  9. Daan N, Bromley PJ, Hislop JRG, Nielsen NA (1990) Ecology of North Sea Fish. Neth J Sea Res 26:343–386CrossRefGoogle Scholar
  10. Dickson RR, Meincke J, Malmberg SA, Lee AJ (1988) The “great salinity anomaly” in the Northern North Atlantic 1968–1982. Prog Oceanogr 20:103–151CrossRefGoogle Scholar
  11. Drazen JC, Robison BH (2004). Direct observations of the association between a deep-sea fish and a giant scyphomedusa. Mar Freshw Behav Physiol 37(3):209–214CrossRefGoogle Scholar
  12. Edwards M, Beaugrand G, Reid PC, Rowden AA, Jones MB (2002) Ocean climate anomalies and the ecology of the North Sea. Mar Ecol Prog Ser 239:1–10CrossRefGoogle Scholar
  13. Hay SJ, Hislop JRG, Shanks AM (1990) North-Sea scyphomedusae—summer distribution, estimated biomass and significance particularly for 0-group gadoid fish. Neth J Sea Res 25:113–130CrossRefGoogle Scholar
  14. ICES (1996a) Report of the multispecies assessment working group. ICES CM 1996/Assess:3. Copenhagen, DenmarkGoogle Scholar
  15. ICES (1996b) Report of the working group on the assessment of demersal stocks in the North Sea and Skagerrak. ICES CM 1996/Assess:6, Copenhagen, DenmarkGoogle Scholar
  16. ICES (2002) Report of the ICES advisory committee on fish management 3.5.2: cod in sub-area IV (North Sea), Division VIId (Eastern English Channel) and Division IIIa (Skagerrak). ICES, CopenhagenGoogle Scholar
  17. ICES (2003) Report of the working group on the assessment of demersal stocks in the North Sea and Skagerrak. ICES CM 2004/ACFM:07, Boulogne-sur-Mer, FranceGoogle Scholar
  18. Johnston J (1984) Econometric methods, 3rd ed. McGraw Hill, New YorkGoogle Scholar
  19. Knijn RJ, Boon TW, Heessen HJL, Hislop JRG (1993) Atlas of North Sea fishes. ICES Cooperative Research Reports. Copenhagen, ICES 194. 268Google Scholar
  20. Krzanowski WJ (1998) An introduction to statistical modelling. ArnoldGoogle Scholar
  21. Lynam CP, Hay SJ, Brierley AS (2004) Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation. Limnol Oceanogr 49:637–643CrossRefGoogle Scholar
  22. Lynam CP, Heath MR, Hay SJ, Brierley AS (2005a) Evidence for impacts by jellyfish on North Sea herring recruitment. Mar Ecol Prog Ser 298:157–167CrossRefGoogle Scholar
  23. Lynam CP, Hay SJ, Brierley AS (2005b) Jellyfish abundance and climatic variation: contrasting responses in oceanographically distinct regions of the North Sea, and possible implications for fisheries. J Mar Biol Assoc UK 85:435–450 DOI 410.1017/s0025315405011380CrossRefGoogle Scholar
  24. Lynam CP, Gibbons MJ, Axelsen BE, Sparks CAJ, Coetzee J, Heywood BG, Brierley AS (2006) Jellyfish overtake fish in an heavily fished ecosystem. Curr Biol 16(13):R492–R493CrossRefGoogle Scholar
  25. Mansueti R (1963) Symbiotic behavior between small fishes and jellyfishes, with new data on that between the Stromateid, Peprilus alepidotus, and the Scyphomedusa, Chrysaora quinquecirrha. Copeia 1:40–90CrossRefGoogle Scholar
  26. Nagabhushanam (1959) Studies on the biology of the commoner gadoids in the Manx area, with special reference to their food and feeding habits. PhD Thesis, University of LiverpoolGoogle Scholar
  27. Pikitch EK, Santora C, Babcock EA, Bakun A, Bonfil R, Conover DO, Dayton P, Doukakis P, Fluharty D, Heneman B, Houde ED, Link J, Livingston PA, Mangel M, McAllister MK, Pope J, Sainsbury KJ (2004) Ecosystem-based fishery management. Science 305:346–347CrossRefGoogle Scholar
  28. Purcell JE, Arai MN (2001) Interactions of pelagic cnidarians and ctenophores with fish: a review. Hydrobiologia 451:27–44CrossRefGoogle Scholar
  29. R Development Core Team (2003) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, AustriaGoogle Scholar
  30. Reid PC, Edwards M, Beaugrand G, Skogen M, Stevens D (2003) Periodic changes in the zooplankton of the North Sea during the twentieth century linked to oceanic inflow. Fish Oceanogr 12:260–269CrossRefGoogle Scholar
  31. Rindorf A (2003) Diel feeding pattern of whiting in the north sea. Mar Ecol Prog Ser 249:265–276CrossRefGoogle Scholar
  32. Rogers S, Stocks R (2001) North Sea fish and fisheries. Department of Trade and Industry. Strategic Environmental Assessment—SEA2 Technical Report 003—Fish and Fisheries CEFASGoogle Scholar
  33. Russell FS (1928) The vertical distribution of marine macro-plankton. VIII. Further observations on the diurnal behaviour of the pelagic young of teleostean fishes in the Plymouth area. J Mar Biol Assoc UK 14:557–608CrossRefGoogle Scholar
  34. Russell FS (1970) The medusae of the British Isles. II. Pelagic Scyphozoa with a supplement to the first volume on hydromedusae. Cambridge University Press, LondonGoogle Scholar
  35. Titelman J, Hansson LJ (2006) Feeding rates of the jellyfish Aurelia aurita on fish larvae. Mar Biol 149:297–306 DOI 10.1007/s0022700502005CrossRefGoogle Scholar
  36. Verity PG, Smetacek V, Smayda TJ (2002) Status, trends and the future of the marine pelagic ecosystem. Environ Conserv 29:207–237CrossRefGoogle Scholar
  37. Wennhage H, Pihl L (2002) Fish feeding guilds in shallow rocky and soft bottom areas on the Swedish west coast. J Fish Biol 61:207–228CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Gatty Marine LaboratoryUniversity of St. AndrewsFifeScotland
  2. 2.Centre for Research into Ecological and Environmental ModellingUniversity of St. Andrews, The Observatory, Buchanan GardensSt. Andrews, FifeScotland

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