Abstract

The distribution, temperature, and size ranges of 60 species of myctophids in the North Atlantic between 55°N and 24°N along approximately 30°W are recorded for the four seasons. The general zoogeography and migration is discussed. Faunal groups of species, faunal borders, and transition zones near 50°N, 41 °N, and 29°N for myctophids are distinguished and discussed.

Highlights

  • This paper deals with the Myctophidae collected by the Amsterdam Mid North Atlantic Plankton Expeditions 1980, 1981, 1982, and 1983

  • The temperature/salinity (T/S) ratios of the actual, positive sampling localities were plotted in Fig. 11 with the T/S ratio for the North Atlantic Drift in the upper 50 m of the water column for 1981 and 1983, the only two years for which accurate T and S data are available (Van der Spoel, 1985)

  • The cold-water elements P. arcticum, M. punctatum, B. glaciale, and N. kroeyeri are frequently co-occurring with D. rafinesquei and N. valdiviae from the temperate cluster (Fig. 16)

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Summary

Introduction

This paper deals with the Myctophidae collected by the Amsterdam Mid North Atlantic Plankton Expeditions 1980, 1981, 1982, and 1983. In spring and summer only large specimens ( > 40 mm) are found in the area influenced by the branches of the North Atlantic Drift (Fig. 6). Small specimens (

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