Sensory Mechanism and Selective Advantage for Diel Vertical Migration in Juvenile Sockeye Salmon, Oncorhynchus nerka

1990 ◽  
Vol 47 (9) ◽  
pp. 1796-1802 ◽  
Author(s):  
David A. Levy
Keyword(s):  
British Columbia ◽  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Predator Avoidance ◽  
Sockeye Salmon ◽  
Selective Advantage ◽  
Metabolic Efficiency ◽  
Diel Vertical Migrations ◽  
Temperature Controlled ◽  
Sensory Mechanism

Diel vertical migrations are commonly undertaken by juvenile sockeye salmon within pelagic lake nursery environments. Data from hydroacoustic surveys in British Columbia lakes are used to compare predictions from sensory mechanism and selective advantage theories for diel vertical migration with the performance of the animals under field conditions. The observations suggest that light and temperature controlled juvenile sockeye day and night depth positions respectively. A multifactor hypothesis, which interprets the migration as a three-way compromise between foraging, predator avoidance, and the optimization of nocturnal metabolic efficiency, provides the most realistic explanation for the selective advantage of the behavior.

Reciprocal Diel Vertical Migration Behavior in Planktivores and Zooplankton in British Columbia Lakes

1990 ◽  
Vol 47 (9) ◽  
pp. 1755-1764 ◽  
Author(s):  
David A. Levy
Keyword(s):  
British Columbia ◽  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Sockeye Salmon ◽  
Distribution Patterns ◽  
Trophic Levels ◽  
Crustacean Zooplankton ◽  
Migration Behavior ◽  
Diel Vertical Migrations ◽  
Threespine Sticklebacks

Simultaneous comparison of planktivore and crustacean zooplankton distribution patterns in a set of British Columbia lakes suggested coupled diel vertical migration behavior in the two adjacent trophic levels. In lakes where juvenile sockeye salmon performed diel vertical migrations, most zooplankton were non-migratory and concentrated in shallow surface waters over the diel cycle. In contrast, in one lake where pelagic threespine sticklebacks were present, and where juvenile sockeye diel vertical migrations were periodically reversed, most zooplankton undertook diel vertical migrations. The presence of diel vertical migration behavior in zooplankton thus appears to be related to the presence or absence of the behavior in the predominant planktivores.

Acoustic Analysis of Diel Vertical Migration Behavior of Mysis relicta and Kokanee (Oncorhynchus nerka) within Okanagan Lake, British Columbia

1991 ◽  
Vol 48 (1) ◽  
pp. 67-72 ◽  
Author(s):  
David A. Levy
Keyword(s):  
Water Column ◽  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Acoustic Analysis ◽  
Oncorhynchus Nerka ◽  
Target Strength ◽  
Migration Behavior ◽  
Mysis Relicta ◽  
Dual Beam ◽  
Diel Vertical Migrations

Dual-beam acoustic surveys of Okanagan Lake suggested active diel vertical migrations of Mysis relicta and kokanee (Oncorhynchus nerka) within the pelagic zone. Mysis relicta were situated between 90–150 m during the day and migrated upwards into the thermocline region of the water column at night. Two groups of kokanee targets were detected. The first undertook a diel vertical migration and coalesced at dusk with a second, shallow-oriented group of targets. Daytime target strength estimates taken while the two groups were vertically segregated in the water column suggested an 8–12 db lower target strength of the deeper group. The results provide acoustic evidence for a smaller body size in the deeper group and the occurrence of an ontogenetic shift in diel migratory behavior of kokanee within Okanagan Lake. Diel comparisons of depth distribution suggested spatial segregation of Mysis and kokanee over much of the diel cycle.

scholarly journals 5α-cyprinol sulfate, a bile salt from fish, induces diel vertical migration in Daphnia

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Meike Anika Hahn ◽  
Christoph Effertz ◽  
Laurent Bigler ◽  
Eric von Elert
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Predator Avoidance ◽  
Aquatic Invertebrates ◽  
Chemical Cues ◽  
Temporal Distribution ◽  
Aquatic Environments ◽  
Inducible Defenses ◽  
Lipid Digestion

Prey are under selection to minimize predation losses. In aquatic environments, many prey use chemical cues released by predators, which initiate predator avoidance. A prominent example of behavioral predator-avoidance constitutes diel vertical migration (DVM) in the freshwater microcrustacean Daphnia spp., which is induced by chemical cues (kairomones) released by planktivorous fish. In a bioassay-guided approach using liquid chromatography and mass spectrometry, we identified the kairomone from fish incubation water as 5α-cyprinol sulfate inducing DVM in Daphnia at picomolar concentrations. The role of 5α-cyprinol sulfate in lipid digestion in fish explains why from an evolutionary perspective fish has not stopped releasing 5α-cyprinol sulfate despite the disadvantages for the releaser. The identification of the DVM-inducing kairomone enables investigating its spatial and temporal distribution and the underlying molecular mechanism of its perception. Furthermore, it allows to test if fish-mediated inducible defenses in other aquatic invertebrates are triggered by the same compound.

Growth of Underyearling Sockeye Salmon (Oncorhynchus nerka) under Constant and Cyclic Temperatures in Relation to Live Zooplankton Ration Size

1980 ◽  
Vol 37 (2) ◽  
pp. 203-210 ◽  
Author(s):  
R. M. Biette ◽  
G. H. Geen
Keyword(s):  
Diel Vertical Migration ◽  
Sockeye Salmon ◽  
Oncorhynchus Nerka ◽  
Growth Efficiency ◽  
Surface Layers ◽  
Gross Growth Efficiency ◽  
Diel Vertical Migrations ◽  
Cyclic Temperature ◽  
Ration Size ◽  
Rate Conversion

Growth rates of Babine Lake underyearling sockeye salmon (Oncorhynchus nerka) fed rations of zooplankton of 14–84 cal/kcal sockeye∙d−1 (1 cal = 4.1868 J; 1.3–7.8% of dry body wt) were determined at constant temperatures of 6.2, 11.3, 15.3, and 15.9 °C, and under a cyclic temperature regime similar to that encountered during their diel vertical migrations. Growth of fish fed rations of 43–76 cal/kcal∙d−1 (4.0–6.9% of dry body wt) was equal or greater under cyclic temperatures than constant temperatures. At the lowest and highest rations growth was greater, respectively, under the constant low temperature and the constant high temperature than under cyclic temperatures. Gross growth efficiency, ranging from < 1 to 31%, was affected by temperature and ration in much the same way as growth. Young sockeye ingesting moderate rations comparable to those probably available in the relatively warm surface layers of Babine Lake, and undergoing diel migrations from deep cold waters to the surface, and return, are likely to grow more rapidly and efficiently than fish maintained at constant temperatures. The selective value of vertical migrations in thermally stratified waters may have an energetic basis as suggested by some other workers.Key words: sockeye salmon, growth rate, conversion efficiency, diel vertical migration, temperature, zooplankton ration, diel cyclic temperature

scholarly journals Diel vertical migration of predators (planktivorous fish larvae) and prey (zooplankton) in a tropical lagoon

2015 ◽  
Vol 105 (2) ◽  
pp. 174-183 ◽  
Author(s):  
Marcos Marques Mendonça ◽  
Pablo Henrique dos Santos Picapedra ◽  
Michelli Caroline Ferronato ◽  
Paulo Vanderlei Sanches
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Predator Avoidance ◽  
Fish Larvae ◽  
Abiotic Factors ◽  
Reproductive Period ◽  
Planktivorous Fish ◽  
Spatial Overlap ◽  
Tropical Lagoon ◽  
Small Depth

ABSTRACT Based on the hypothesis that diel vertical migration (DVM) is a mechanism of predator avoidance, the objective of the present study was to test for the occurrence of DVM in planktivorous fish larvae of Hypophthalmus edentatus (Spix, 1829) (Siluriformes, Pimelodidae) and Plagioscion squamosissimus (Heckel, 1840) (Perciformes, Sciaenidae), and zooplankton (rotifers, cladocerans and copepods) in an isolated tropical lagoon in the floodplain of the Upper Paraná River, Brazil (region of Parque Nacional de Ilha Grande). We investigated spatial overlap between predators (planktivorous fish larvae) and prey (zooplankton), and tested which physical and chemical variables of the water are related to the DVM of the studied communities. We performed nocturnal (8:00 pm and 4:00 am) and diurnal sampling (8:00 am and 4:00 pm) in the limnetic region of the lagoon for six consecutive months, from October 2010 to March 2011, which comprises the reproductive period of the fish species analyzed. During the day the larvae tried to remain aggregated in the bottom of the lagoon, whereas at night they tried to disperse in the water column. Especially for cladocerans, the diel vertical migration is an important behavior to avoid predation larvae of H. edentatus and P. squamosissimus once decreased spatial overlap between secured and its potential predators, which corroborates the hypothesis that DVM is a mechanism of predator avoidance. Although significant correlations were observed between the abiotic factors and WMD of microcrustaceans at certain times of day, the effect of predation of fish larvae on zooplankton showed more important in this environment, because the small depth and isolation not allow great variation of abiotic factors seasonally and between strata the lagoon.

Diel vertical migration in zooplankton: field evidence in support of the predator avoidance hypothesis

Hydrobiologia ◽  
1992 ◽  
Vol 234 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Stephen M. Bollens ◽  
Bruce W. Frost ◽  
Dave S. Thoreson ◽  
Sidney J. Watts
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Predator Avoidance ◽  
Field Evidence

Diel vertical migration of mesozooplankton in the northern Yellow Sea

2021 ◽  
Author(s):  
Ruping Ge ◽  
Hongju Chen ◽  
Guangxing Liu ◽  
Yanzhong Zhu ◽  
Qiang Jiang
Keyword(s):  
Vertical Migration ◽  
Yellow Sea ◽  
Diel Vertical Migration ◽  
Northern Yellow Sea
Sign in / Sign up

Export Citation Format

Share Document