The neritic benthopelagic fauna: Which factors explain nocturnal distribution better?

Vereshchaka, Alexander L.; Anokhina, L. L.

doi:10.1016/j.csr.2017.07.006

Cited by 5 publications

(6 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1) from 4 June 1991 to 14 December 2017 with intervals of 10 days. This is an open bay characterised by typical environmental parameters for the northeast coast of the Black Sea (Lebedeva et al, 2003; Vinogradov et al, 2005; Vereshchaka & Anokhina, 2014, 2015, 2017a, 2017b). Under stormy conditions, which occurred mainly in the winter period, sampling was delayed 1–3 days.…”

Section: Methodsmentioning

confidence: 99%

“…1). We started with analysis of the benthopelagic and benthoneustonic fauna, have yielded regularities in diurnal dynamics of these plankton groups, and assessed environmental factors driving this dynamics (Vereshchaka & Anokhina, 2014, 2015, 2017a, 2017b). Here, we make the next step and analyse temporal variability of all plankton taxa with the focus on the holoplanktonic fauna.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Long-term studies reveal major environmental factors driving zooplankton dynamics and periodicities in the Black Sea coastal zooplankton

Vereshchaka

Anokhina

Lukasheva

et al. 2019

PeerJ

Self Cite

View full text Add to dashboard Cite

Background The development and management of shelf-sea ecosystems require a holistic understanding of the factors that influence the zooplankton structure and ecosystem functions. The Black Sea is an example of such areas influenced by eutrophication, overfishing, climate variability, invasions of the ctenophores Mnemiopsis leidyi followed by Beroe ovata. Thus, there is a set of principal factors which may influence and explain periodicities in the Black Sea ecosystem. Methods We analysed a total of 918 samples taken from 1991 to 2017 with intervals of 10 days. Taxa were identified to species, their abundance and biomass were calculated. We tested 12 environmental factors, which may explain zooplankton distribution: temperature, productivity-linked factors (surface chlorophyll as a proxi), wind, turbidity, lowest winter temperature, and concentration of the ctenophore M. leidyi. We used canonical correspondence analyses to find the dominant environmental factors and further regression analyses to retrieve dependences of plankton biomass on the major factors. Periodicities were assessed with the use of the Continuous wavelet transform and tested with use of One-way ANOSIM and PERMANOVA. The distances between ecosystem states in different years were assessed using non-metric multidimensional scaling. Results Currently, temperature and productivity are the major environmental factors driving zooplankton dynamics. Not long ago, before 1999, abundance of M. leidyi was one of the major factors explaining the zooplankton variance. Spectral analysis of species abundances revealed a 4-year transitional period in 1999–2002 (not reported before) when ecosystem adapted to a new invader B. ovata. Statistically robust 2- and 3-year periodicities were retrieved for most plankton taxa and some benthic larvae. We found robust correlations between temperature and surface chlorophyll concentration on one side and plankton abundances and biomass on the other, and retrieved multivariate regressions, which may have a prognostic value.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Long-term studies reveal major environmental factors driving zooplankton dynamics and periodicities in the Black Sea coastal zooplankton

Vereshchaka

Anokhina

Lukasheva

et al. 2019

PeerJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…While changes in the vertical distribution of these migrating species have been well described in open waters, the general patterns of such migrations in coastal areas remain poorly understood (Vereshchaka & Anokhina, 2017). In shallow waters, pelagic and benthic communities interact more closely with each other (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Coastal zooplankton is a major energy source in tropical and temperate reefs, where demersal zooplankton accounts for up to 80% of plankton biomass at night (Alldredge & King, 2009; Truong et al ., 2017; Vereshchaka & Anokhina, 2017). Consequently, demersal zooplankton supports a significant biomass of both sessile and mobile planktivores (from jellyfish and corals to manta rays), especially those who primarily feed at night (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Regarding substrate type, most previous works have found a clear relationship between the degree of three-dimensional structure of a certain substrate and the abundance of plankton rising from it (Porter, 1977; Smith et al ., 2016; Vereshchaka & Anokhina, 2017), with only few exceptions to this pattern (Melo et al ., 2010). In this sense, most taxa emerge in greater numbers from complex substrata (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Demersal amphipod migrations: spatial patterns in marine shallow waters

2020

View full text Add to dashboard Cite

The nocturnal displacement to the water column of species hiding in the substrate during the day (so-called demersal migration) is a widespread phenomenon in coastal habitats. However, despite the relevance of these migrations to coastal ecosystem functioning, most of their ecological aspects are poorly understood. We aim to characterize spatial distribution patterns of demersal amphipods by comparing samples collected by light traps deployed both at rocky and nearby sandy areas. Dispersal abilities of such species were explored by considering two spatial scales of separation between rocky and sandy substrates: (1) <100 m and (2) >1 km. A total of >45,000 amphipod specimens were collected in the water column during the whole study, belonging to 50 species. The numerically dominant species were Guernea coalita, Bathyporeia cf. elegans, Perioculodes longimanus and Nototropis swammerdamei. The present study highlights the relevance of substrate type and study location on coastal demersal amphipod migrations. Amphipod assemblages were significantly different in the water column above rocky and sandy bottoms, even at a small spatial scale. Species emerging from rocky bottoms tend to remain in the proximity of this habitat; they showed lower abundances in sandy areas located nearby and almost none of them reached distant sandy areas. In contrast, migrant species commonly found on sediment during the day were collected at higher abundances in light traps deployed above rocky bottoms. Although several factors (e.g. food availability, predation pressure) are proposed to explain these patterns, the purpose of this horizontal migration remains unknown.

show abstract

The benthoneuston of the Black Sea: Composition and environmental factors influencing its nocturnal dynamic

Vereshchaka

Anokhina

2017

Continental Shelf Research

View full text Add to dashboard Cite

The neritic benthopelagic fauna: Which factors explain nocturnal distribution better?

Cited by 5 publications

References 39 publications

Long-term studies reveal major environmental factors driving zooplankton dynamics and periodicities in the Black Sea coastal zooplankton

Long-term studies reveal major environmental factors driving zooplankton dynamics and periodicities in the Black Sea coastal zooplankton

Demersal amphipod migrations: spatial patterns in marine shallow waters

The benthoneuston of the Black Sea: Composition and environmental factors influencing its nocturnal dynamic

Contact Info

Product

Resources

About