James Kennedy

James Kennedy

Fish biologist

Marine and Freshwater Institute

Biography

I am a fish biologist at the Marine and Freshwater Research Institute in Iceland. My primary interest is the biology and ecology of lumpfish (Cyclopterus lumpus), with other interests including the biology of mesopelagic fishes and the distribution and behaviour of rare species. Lumpfish is fished commercially in Iceland and I am responsible for providing management advice to ensure the fishery is sustainable. My current work focuses on the development of a method for ageing of lumpfish, examining its migratory behaviour through tagging and what environmental variables drive its distribution in the eastern Atlanatic.

I have previously worked on the reproductive biology of several species (plaice, herring, cod and Greenland halibut) which was performed at the marine laboratory on the Isle of Man and at the University of Bergen.

Interests
  • General biology of lumpfish
  • Fish reproduction
  • Fisheries Assessment
Education
  • PhD in Biology, 2006

    University of Liverpool

  • B.Sc. in Marine Biology, 2002

    Stirling University

Experience

 
 
 
 
 
Marine and Freshwater Research Institute
Fisheries Biologist
September 2013 – Present Ísafjörður, Iceland
I am responsible for providing management advice for the commercially exploited lumpfish (Cyclopterus lumpus) population in Iceland. I also carry out research into the biology of lumpfish which can be used for more informed management of this species.
 
 
 
 
 
Researcher
June 2008 – August 2013 Ålesund, Norway
Research into the reproductive ecology of Greenland halibut (Reinhardtius hippoglossoides)
 
 
 
 
 
Researcher
June 2006 – May 2008 Bergen, Norway
Investigating fecundity regulation and skipped spawning in herring (Clupea harengus) and cod (Gadus morhus)
 
 
 
 
 
PhD student
September 2002 – May 2006 Port Erin Marine Laboratory, Isle of Man
Investigating fecundity regulation and maternal effects in plaice (Pleuronectes platessa)

Projects

Assesment of the lumpfish population in Iceland
The lumpfish population in Iceland is assessed on an annual basis to provide advice for the Total Allowable Catch (TAC) for the fishery. This advice is primarily based upon a relative abundance index from the Icelandic spring groundfish survey which takes place each year in February-March.
Lumpfish tagging
As spring approaches in Iceland, lumpfish begin to migrate to the coast for spawning and at this time fishers get aboard their boats to begin laying their nets. But where did all these fish come from?
Reproduction
For many species, the feeding and spawning areas are separate and thus the fish must migrate between these areas. The spawning areas may be close to land and as the fish become more aggregated in these areas, they are more vulnerable to fishers.

Recent Publications

(2024). Investigating temporal variability and influence of condition on fecundity and spawning of spotted wolffish (Anarhichas minor) in Icelandic waters. Pol. Bio., 47: 263-277.

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(2024). Nesting behavior of greater eelpout (Lycodes esmarkii), identified through a predation event by spotted wolffish (Anarhichas minor). J. Fish Bio., 104: 1247-1250.

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(2023). Biological information on a rare pelagic fish, black ruff *Centrolophus niger*, caught in Icelandic waters: Distribution, feeding, and otoliths. J. Fish Bio., 104: 598-610.

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(2023). Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. PLOS ONE, 18(3): e028335.

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