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Phase transition in recruitment and distribution of monkfish (Lophius piscatorius) in Icelandic waters
Solmundsson, J.; Jonsson, E.; Björnsson, H. (2010). Phase transition in recruitment and distribution of monkfish (Lophius piscatorius) in Icelandic waters. Mar. Biol. (Berl.) 157(2): 295-305. hdl.handle.net/10.1007/s00227-009-1317-8
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Solmundsson, J.
  • Jonsson, E.
  • Björnsson, H.

Abstract
    The abundance and distribution of monkfish (Lophius piscatorius) at Iceland have increased rapidly in the last decade, concurrent with rising seawater temperatures and salinity. These environmental changes seem to have improved the reproductive success of the monkfish stock, and since 1998 large cohorts have recruited almost annually, in great contrast to at least 15 years prior to that. The study indicates that the transition in recruitment could be mediated by the direct effects of expanded nursery and feeding habitat through elevated temperatures. Other factors are likely to be involved, such as a more favourable egg and larval drift resulting from a changed inflow of surface water from spawning to nursery areas. A proportion of the monkfish stock in Icelandic waters may originate from distant areas, either by means of larval drift or active migration of larger fish.

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