scholarly journals Larval Diel Vertical Migration of the Marine GastropodKelletia kelletii(Forbes, 1850)

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Melissa R. Romero ◽  
Kimberly M. Walker ◽  
Carmen J. Cortez ◽  
Yareli Sanchez ◽  
Kimberly J. Nelson ◽  
...  
Keyword(s):  
Surface Waters ◽  
Vertical Migration ◽  
Larval Dispersal ◽  
Diel Vertical Migration ◽  
Population Connectivity ◽  
Column Height ◽  
Night Time ◽  
Laboratory Culturing ◽  
Vertical Positioning ◽  
Fishery Species

Documenting larval behavior is critical for building an understanding of larval dispersal dynamics and resultant population connectivity. Nocturnal diel vertical migration (DVM), a daily migration towards the surface of the water column at night and downward during the day, can profoundly influence dispersal outcomes. Via laboratory experiments we investigated whether marine gastropodKelletia kelletiilarvae undergo nocturnal DVM and whether the behavior was influenced by the presence of light, ontogeny, and laboratory culturing column height. Larvae exhibited a daily migration pattern consistent with nocturnal diel vertical migration with lower average vertical positioning (ZCM) during day-time hours and higher vertical positioning at night-time hours. ZCM patterns varied throughout ontogeny; larvae became more demersal as they approached competency. There was no effect of column height on larval ZCM. DVM behavior persisted in the absence of light, indicating a possible endogenous rhythm. Findings from field plankton tows corroborated laboratory nocturnal DVM findings; significantly moreK.kelletiiwere found in surface waters at midnight compared to at noon. Unraveling the timing of and the cues initiating DVM behavior inK.kelletiilarvae can help build predictive models of dispersal outcomes for this emerging fishery species.

Energetic costs and benefits of cyclic habitat switching: a bioenergetics model analysis of diel vertical migration in coregonids

2011 ◽  
Vol 68 (4) ◽  
pp. 706-717 ◽  
Author(s):  
Susan Busch ◽  
Brett M. Johnson ◽  
Thomas Mehner
Keyword(s):  
Fish Species ◽  
Vertical Migration ◽  
Growth Rates ◽  
Diel Vertical Migration ◽  
Night Time ◽  
Energetic Costs ◽  
Efficient Strategy ◽  
Parameterized Model ◽  
Energetic Constraints ◽  
Lake Stechlin

Recent studies on diel vertical migration (DVM) of two coregonid species ( Coregonus spp.) in Lake Stechlin (Germany) have suggested that the nocturnal distribution of fish is linked with metabolic benefits. We used a spatially explicit bioenergetics-based foraging model to test whether energetic constraints contribute to explain DVM of both species. The newly parameterized model was compared with independent data from Lake Stechlin that covered a 9 month period. Predicted growth rates matched observed growth rates of each fish species reasonably well. The simulation of different migration scenarios showed that even slight changes in night-time depths modified growth rates, primarily owing to temperature-dependent respiration. Fish that performed DVM grew faster than nonmigratory fish that occupied deep hypolimnetic water over a diel cycle. However, the most energy-efficient strategy simulated had fish remaining within the metalimnion. Here, energetic benefits (foraging) clearly outweighed higher energetic costs (respiration) in the warmer waters. Although DVM can be energetically beneficial, it is not the most efficient strategy performed by coregonids in Lake Stechlin. We suggest that multiple factors, rather than bioenergetics efficiency alone, are the evolutionary basis for DVM of many freshwater fish species.

scholarly journals Vertical distribution of Baltic sprat larvae: changes in patterns of diel migration?

2007 ◽  
Vol 64 (5) ◽  
pp. 956-962 ◽  
Author(s):  
Rüdiger Voss ◽  
Jörn O. Schmidt ◽  
Dietrich Schnack
Keyword(s):  
Vertical Distribution ◽  
Surface Waters ◽  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Behavioural Change ◽  
Migration Patterns ◽  
Near Surface ◽  
Diel Migration ◽  
The Baltic ◽  
Comparison Of The Results

Abstract Voss, R., Schmidt, J. O., and Schnack, D. 2007. Vertical distribution of Baltic sprat larvae: changes in patterns of diel migration? – ICES Journal of Marine Science, 64: 956–962. Ontogenetic and diurnal vertical migration patterns of Baltic sprat larvae were investigated for the periods 1989–1990 and 1998–2002. Comparison of the results led to the hypothesis that the diel vertical migration behaviour of sprat larvae >10 mm has changed. In 1989 and 1990, sprat larvae migrated to the surface at night, whereas they stayed 30–50 m deep by day. From 1998 to 2002, sprat larvae showed no signs of diel vertical migration, remaining in warmer, near-surface water by day and night. This behavioural change coincided with a more general change in the Baltic ecosystem, i.e. an increase in near-surface temperature and a general increase in abundance of the major prey organism (Acartia spp.) of Baltic sprat larvae, with more pronounced aggregation in surface waters.

Diel changes in vertical distribution of copepods community in Tanabe Bay, Japan

2004 ◽  
Vol 84 (3) ◽  
pp. 607-615 ◽  
Author(s):  
Shinji Shimode ◽  
Yoshihisa Shirayama
Keyword(s):  
Vertical Distribution ◽  
Water Column ◽  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Weighted Mean ◽  
Night Time ◽  
Downward Migration ◽  
Distributional Patterns ◽  
Group B ◽  
Group D

Diel vertical migration (DVM) and distributional patterns of copepods collected in the water column at shallow water site (Station M) in Tanabe Bay, Japan were investigated. Twenty-one taxa of zooplankton and 48 species of copepods at Station M had positive ΔZ values (subtraction of night-time weighted mean depth from daytime value) and performed normal DVM. The highest ΔZ value was 4·3 observed in Ambunguipes rufocincta. Three taxa and 39 species collected only at night also had high WMD (weighted mean depth) values (4·0∼7·5), which were previously considered hyperbenthic species. Statistically significant differences were found only in Myodocopina spp., Calocalanus plumulosus and Clausocalanus spp. Myodocopina spp. and Clausocalanus spp. showed downward migration at low to high and high tidal phases. Calocalanus plumulosus and some copepods performed downward migration during high and high to low tidal phases. Four distributional patterns of copepod species in Tanabe Bay were found. The groups are as follows: (A) true planktonic group; (B) swarming and night emerging group; (C) night emerging meiobenthic and hyperbenthic group; (D) symbiotic and night emerging group.

Field evaluation of a bioenergetics-based foraging model for kokanee (Oncorhynchus nerka)

1999 ◽  
Vol 56 (S1) ◽  
pp. 140-151 ◽  
Author(s):  
Jason D Stockwell ◽  
Brett M Johnson
Keyword(s):  
Surface Waters ◽  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Lake Trout ◽  
Oncorhynchus Nerka ◽  
Field Evaluation ◽  
Relative Importance ◽  
Daily Growth ◽  
Thermal Habitat ◽  
Foraging Constraints

We used a bioenergetics-based foraging model to determine if bioenergetic and foraging constraints could explain kokanee (Oncorhynchus nerka) diel vertical migration in Blue Mesa Reservoir, Colorado. We compared model predictions of daily growth and migration strategies with observed growth and diel vertical distributions on three dates during the summer. Results suggest that bioenergetic and foraging constraints were not sufficient to explain diel vertical migration early in the summer, when thermal stratification was weak. However, these constraints could explain observed patterns later in the summer, when optimal thermal habitat for kokanee was spatially segregated from food-rich surface waters. The onset of a strong thermocline, and its exclusion of piscivorous lake trout (Salvelinus namaycush) from surface waters, appeared to determine the relative importance of predation risk for kokanee diel vertical migration patterns. Our observations and modeling results suggest that the relative importance of various factors driving diel vertical migration changes seasonally. Furthermore, the relative importance of each factor likely varies from system to system and may have caused the variety of single-factor hypotheses proposed to explain kokanee diel vertical migration. The model provides a framework for studying diel vertical migration across systems of differing thermal regimes, productivity, and predation pressures.

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

scholarly journals DIEL VERTICAL MIGRATION OF Gonyostomum semen (Raphidophyceae) IN KAWAHARA LAKE

2002 ◽  
Vol 46 ◽  
pp. 1061-1066 ◽  
Author(s):  
Youichi TAKEMOTO ◽  
Katsuhiro FURUMOTO ◽  
Akihide TADA
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Gonyostomum Semen

Zooplankton diel vertical migration and influence of upwelling on the biomass in the Chukchi Sea during summer

2015 ◽  
Vol 34 (5) ◽  
pp. 68-74 ◽  
Author(s):  
Huiwu Wang ◽  
Hongxia Chen ◽  
Liang Xue ◽  
Na Liu ◽  
Yanliang Liu
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Chukchi Sea

Utilization of subsurface food resources for zooplankton reproduction: Implications for diel vertical migration theory

1996 ◽  
Vol 41 (2) ◽  
pp. 224-233 ◽  
Author(s):  
Craig E. Williamson ◽  
Robert W. Sanders ◽  
Robert E. Moeller ◽  
Paul L.> Stutzman
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Food Resources ◽  
Migration Theory
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