The daily activity cycles of marine predators may be dictated in large part by the timing of
prey availability. For example, recent studies have observed diel periodicity in baleen whale …

The diel vertical migration (DVM) of the copepod Metridia pacifica was examined in Dabob
Bay (47° 45.05′ N, 122° 49.71′ W), a fjord in Washington state. Although the population …

The prototype of Meganyctiphanes norvegica diel vertical migration (DVM) behaviour
comprises ascent around dusk, feeding near the surface at night, and descent at dawn …

This chapter provides a background to research on Northern krill biology, starting with a
description of its morphology and identifying features, and the historical path to its eventual …

DNA metabarcoding and morphological taxonomic (microscopic) analysis of the gut
contents was used to examine diet diversity of seven species of fishes collected from …

Antarctic krill (Euphausia superba) is a keystone species in the southern ocean ecosystem
where it is the main consumer of phytoplankton and constitutes the main food item of many …

The opportunistic collection of hydroacoustic data during multipurpose, large-scale surveys
since 2000 has led to the detection of several, newly-documented krill concentrations …

In the highly productive northern Benguela upwelling system, euphausiids can dominate the
mesozooplankton community and may contribute substantially to the vertical flux of organic …

Adaptive processes linked to overall metabolism were studied in terms of oxygen
consumption and ammonia excretion in each of three self-contained krill populations along …

In the past, two euphausiid species prevailed in the high Arctic Kongsfjorden, the arcto-
boreal Thysanoessa inermis (Kroeyer, 1846) and Thysanoessa raschii (Sars. 1964). Both …