Reproductive Biology of Marine Cladocerans

Egloff, David A.; Fofonoff, Paul W.; Onbé, Takashi

doi:10.1016/s0065-2881(08)60222-9

Cited by 91 publications

(73 citation statements)

References 118 publications

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“…In coastal regions of the Mediterranean P. avirostris forms vast swarms of parthenogenetic females which appear in the summer and persist into the autumn. This habit of parthenogenesis (without pedogenesis, which makes Penilia more similar to freshwater cladocera than marine cladocera; Egloff et al 1997) would explain the sporadic and rapid expansion of the species into new areas under favourable conditions, for example the Caspian Sea, where the species entered via the VolgaDon canal in 1954 (Aladin and Plotnikov 2003). All Cladocera can reproduce parthogenetically under favourable conditions, and produce a resting egg in the female after sexual reproduction (Gieskes 1971), which sinks into the bottom sediment (Marazzo and Valentin 2003).…”

Section: Introductionmentioning

confidence: 99%

Increasing prevalence of the marine cladoceran Penilia avirostris (Dana, 1852) in the North Sea

et al. 2005

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Rising sea surface temperatures in the North Sea have had consequential effects on not only indigenous plankton species, but also on the possibility of successful colonisation of the area by invasive plankton species. Previous studies have noted the introduction and integration into the plankton community of various phytoplankton species, but establishment of zooplankton organisms in the North Sea is less well-documented. Examining continuous plankton recorder (CPR) survey data and zooplankton results from the Helgoland Roads study, the autumn of 1999 witnessed the occurrence of the marine cladoceran Penilia avirostris in large numbers in the North Sea. The rapid appearance of the species corresponded with exceptionally warm sea surface temperatures (SSTs). Since 1999, the species has become a regular feature of the autumnal zooplankton community of the North Sea. In 2002 and 2003, the species occurred in greater abundance than recorded before. It is suggested that increased autumn SSTs have proved favourable to P. avirostris, with warmer conditions contributing to the success of the species' resting eggs and aiding colonisation.

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Section: Introductionmentioning

confidence: 99%

Increasing prevalence of the marine cladoceran Penilia avirostris (Dana, 1852) in the North Sea

et al. 2005

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“…On the contrary E. nordmanni and Podon spp. are considered to be ''marine cladocerans'' and are thus more confined to higher salinities (Egloff et al 1997). E. nordmanni is known as especially eurythermic and euryhaline (Bryan and Grant 1979), which explains its relatively constant occurrence throughout the year.…”

Section: Discussionmentioning

confidence: 99%

“…Cladocerans are usually an important group of crustaceans in fresh waters, while in marine zooplankton they are of comparatively little importance (Raymont 1983;Egloff et al 1997). In the marine environment cladocerans are represented by only three genera, Penilia, Podon and Evadne.…”

Section: Introductionmentioning

confidence: 99%

“…At the end of the reproductive season cladocerans switch to a gamogenic reproductive mode and produce diapausing embryos (''resting eggs''), which in marine environments usually sink to the bottom. These eggs normally hatch in spring, depending mainly on temperature conditions (for a review see Egloff et al 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Salinity and temperature have been reported to influence abundance and distribution of cladoceran species, thereby partly defining a unique species-specific niche, which might additionally be specific for distinct areas (Egloff et al 1997). Hydrography was found to affect brood size via body size (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Long-term trends in abundance of cladocerans in the Central Baltic Sea

Möllmann

Köster

Kornilovs³

et al. 2002

Marine Biology

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Long-term dynamics of the cladoceran species Bosmina coregoni maritima, Evadne nordmanni and Podon spp. are described for the Gdansk Deep and the Gotland Basin (Central Baltic Sea). By using correlation analyses on seasonal time-series, the influence of temperature and salinity on the abundance of cladoceran species was investigated. A clear affinity to higher temperature was found for B. coregoni maritima in summer as well as for E. nordmanni and Podon spp. in spring. In addition to temperature, association tests with salinity revealed besides species-specific preferences, regional and temporal differences. Contrary to B. coregoni maritima, both other species were positively associated to salinity in summer and autumn in the Gdansk Deep. In the Gotland Basin only E. nordmanni was positively correlated to salinity in autumn. Differences in the response to hydrographic variables are possibly stage specific, i.e. between resting eggs and adults, or due to a different adaptation to the abiotic environment.

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Population genetics of two allopatric (North Sea and Baltic Sea) populations of Evadne nordmanni (Podonidae): Similarities and differences

Böckmann

Seidler

Schubert

et al. 2018

Internat Rev Hydrobiol

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This study assessed the genetic relationship between Evadne nordmanni of the Baltic Sea and the North Sea from sequence variation of the mitochondrial cytochrome c oxidase subunit I gene (COI) of 88 specimens from 13 different sites, and from further published data from the Atlantic and Pacific basins. The COI sequences of E. nordmanni from the North and Baltic Seas were represented by a coherent cluster of 28 haplotypes dominated by a central haplotype that accounted for over half of the individuals from these seas, from all samples except one from the Arkona Basin (Baltic Sea). Overall, the North and Baltic Sea populations appear relatively homogenous and the North Sea plausibly represents the source population for the Baltic one. However, the haplotype network also involved a haplogroup of exclusively Baltic Sea haplotypes, comprising four haplotypes represented by 21 individuals and strongly dominated by specimens from the Arkona basin. This inspires discussion about the post‐glacial evolution of a genetically distinct Baltic Sea group, related to a special local salinity regime. Partly as a reflection of the presence of the unique haplogroup, the mean haplotype diversity in the Baltic was twice as high as the mean diversity in the North Sea, h = 0.64 versus h = 0.30.

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Reproductive Biology of Marine Cladocerans

Cited by 91 publications

References 118 publications

Increasing prevalence of the marine cladoceran Penilia avirostris (Dana, 1852) in the North Sea

Increasing prevalence of the marine cladoceran Penilia avirostris (Dana, 1852) in the North Sea

Long-term trends in abundance of cladocerans in the Central Baltic Sea

Population genetics of two allopatric (North Sea and Baltic Sea) populations of Evadne nordmanni (Podonidae): Similarities and differences

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