Marine Biodiversity Records

Research Article

A Pacific grenadier Coryphaenoides acrolepis in the south-west Atlantic and environmental changes in the Falkland deep seas

Vladimir Laptikhovskya1 c1 p1, Michelle R. Gaithera2 and Alex Blacka1

a1 Falkland Islands Government Fisheries Department, PO Box 598, FIPASS, Stanley, FIQQ 1ZZ, Falkland Islands

a2 California Academy of Sciences, Section of Ichthyology, 55 Music Concourse Drive, San Francisco, CA 94118, USA

Abstract

One individual of the Pacific grenadier, Coryphaenoides acrolepis, was recorded for the first time in the South Atlantic (54°00′S 56°52′W–53°57′S 56°44′W, depth range 1540–1860 m). The species is endemic to the North Pacific, and its appearance off the Falkland Islands, as with some other endemic North Pacific species found there recently, might be possibly explained by changes in water circulation in deep seas. During the last decade deep waters around the islands have become less saline and warmer, which is in agreement with respective changes in water masses in Antarctica.

(Received September 30 2013)

(Accepted November 05 2013)

Keywords

  • Macrouridae;
  • biogeography;
  • biological invasion;
  • deep seas;
  • climate changes

Correspondence

c1 Correspondence should be addressed to: V. Laptikhovsky, CEFAS, Pakefield Road, Lowestoft, NR33 0HT, UK email: vladimir.laptikhovsky@cefas.co.uk

p1 Present address: CEFAS, Pakefield Road, Lowestoft, NR33 0HT, UK