Migration from plant to plant: an important factor controlling densities of the epiphytic cladoceran Alona (Chydoridae, Anomopoda) on lake vegetation

Sakuma, Masataka; Hanazato, Takayuki; Saji, Azumi; Nakazato, Ryoji

doi:10.1007/s10201-003-0110-5

Cited by 24 publications

(6 citation statements)

References 25 publications

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“…The appearance of Alona at the end of the AHPII may have been influenced by changes in both abiotic (e.g., hypolimnetic oxygen) and biotic (e.g., lake food‐web structure) factors. For instance, increased oxygenation of bottom waters, resulting from the return of seasonally‐restricted wind mixing as suggested by the diatom assemblage following the mid‐Holocene diatom decline, would have fostered a more suitable environment for benthic Alona because they have been observed to disappear if bottom waters become hypoxic (Sakuma et al., 2004). The concurrent increase of Procladius , Tanytarsus and Cricotopus/Orthocladius , which are typically less tolerant of anoxic conditions (Verschuren et al., 2002), further suggests increased oxygenation that favoured Alona .…”

Section: Discussionmentioning

confidence: 99%

Temporal dynamics of invertebrate community assembly in Lake Victoria since the late Pleistocene based on chitinous remains

King,

Courtney‐Mustaphi,

Cuenca‐Cambronero

et al. 2024

Freshwater Biology

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Preserved assemblages of invertebrate remains in lacustrine sediment reveal temporal variations of community composition and environmental conditions. However, records for large tropical lakes are scarce. Lake Victoria, the largest tropical lake, has a dynamic history of changes in water level, biogeochemistry and fish community composition over the past ~17,000 cal yr BP. In order to quantify changes in the invertebrate assemblage of Lake Victoria from the late Pleistocene throughout the Holocene, we examined chitinous remains of Cladocera and larval dipterans (Chironomidae and Chaoboridae) from a sediment core (37 m water depth) dated from ~13,700 cal yr BP to present. We identified four major phases in the invertebrate assemblage throughout this period of lake history. Firstly, Chironomidae and Chaoboridae appeared at low abundances during the earliest stages of lake inundation in the late Pleistocene, at a time when Cladocera were notably absent. Secondly, chaoborids and chironomids increased in abundance during the mid‐Holocene, which coincided with high diatom production toward the end of the Holocene African Humid Period. Thirdly, starting ~4,700 cal yr BP, Alona, a predominantly littoral cladoceran genus, consistently appeared in the invertebrate assemblage alongside changes in mixing regimes and persisted throughout the late Holocene to the present. Fourthly, the arrival of both Chydorus and Bosmina longirostris marked the establishment of an abundant cladoceran assemblage at ~1,350 cal yr BP. The assemblage then gradually shifted toward the increasing dominance of B. longirostris, a planktonic cladoceran. Several of the observed changes in the invertebrate assemblage occurred concurrently with changes in climatic conditions in East Africa and diatom productivity that have been previously recorded in Lake Victoria. This multi‐millennial record of sedimentary invertebrate assemblages in Lake Victoria elucidates some of the temporal development of these communities throughout most of the dynamic modern history of the ecosystem.

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Section: Discussionmentioning

confidence: 99%

Temporal dynamics of invertebrate community assembly in Lake Victoria since the late Pleistocene based on chitinous remains

King,

Courtney‐Mustaphi,

Cuenca‐Cambronero

et al. 2024

Freshwater Biology

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“…Unlike the dominant cladoceran C. sphaericus , Alona sp. is a typical benthic/littoral cladoceran feeding mainly on periphyton and its reliance on POM is relatively low (Sakuma et al 2004; Adamczuk 2014; Basińska et al 2014), which may explain the different relationships between the biomass of these two species and the EPA content of POM. The lower biomass of Alona ap.…”

Section: Discussionmentioning

confidence: 99%

Response of zooplankton to inputs of terrestrial dissolved organic matter: Food quality constraints induced by microbes

Tang

Ling

et al. 2023

Limnology & Oceanography

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Terrestrial inputs of dissolved organic matter (DOM) stimulate microbial growth by supplying organic carbon and DOM‐associated nutrients, and thus increase food availability for zooplankton. Terrestrial inputs of DOM might decrease the content of eicosapentaenoic acid (EPA) in particular organic matter (POM) due to an increase in biomass of EPA‐poor microbes, for example, heterotrophic bacteria and autotrophic cyanobacteria, thereby reducing food quality and filter‐feeding zooplankton's biomass. We performed a 26‐d mesocosm experiment where terrestrial DOM was manipulated by adding (treatments) and kept without adding (controls) 13C‐labeled maize leachate to evaluate the effect of food quality changes induced by terrestrial DOM inputs on zooplankton. DOM addition treatments had significantly higher concentrations of POM and Chlorophyll a relative to controls, but significant lower EPA content of POM, responding to increased biomass of bacteria and chlorophytes. Biomass and EPA content of filter‐feeding cladoceran Chydorus sphaericus was significantly reduced by terrestrial DOM addition. Stable isotope analyses showed 13C enrichments in bacteria and cryptophytes in the treatment of 13C‐labeled maize leachate, indicating a growth stimulation of heterotrophic microbes by organic carbon addition. Although the 13C enrichment in Chydorus evidenced the extensive use of terrestrial DOM by this cladoceran, positive relationships between Chydorus biomass and EPA content of POM suggest that terrestrial DOM inputs increase food quality constrains on filter‐feeding zooplankton. Our study suggests that the response of filter‐feeding zooplankton to inputs of terrestrial DOM depends on how the terrestrial inputs change the microbial communities and thus the food quality in the receiving aquatic ecosystems.

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“…From the results of epiphytic algae abundance, we found higher algal abundance from free-floating and submerged macrophyte species than other plant species. Considering that epiphytic cladocerans are likely to use epiphytic algae as their food resources (Campeau et al 1994, Sakuma et al 2004) and higher dependence of epiphytic cladocerans on EPOM from the current study, it is expected that more abundant EPOM (possibly represented by epiphytic algae) might contribute to an increase in microcrustacean abundance on free-floating and submerged macrophytes. Similarly, Sakuma et al (2004) also suggested that small cladocerans (i.e.…”

Section: Influence Of Potential Food Sources On Epiphytic Microcrustamentioning

confidence: 97%

Distribution pattern of epiphytic microcrustaceans in relation to different macrophyte microhabitats in a shallow wetland (Upo wetlands, South Korea)

Choi

Kim

Jeong

et al. 2015

Oceanological and Hydrobiological Studies

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I n t e r n a t i o n a l J o u r n a l o f O c e a n o g r a p h y a n d H y d r o b i o l o g y AbstractMacrophytes determine the physical complexity of aquatic environments and provide a suitable habitat for colonization by microcrustaceans. We evaluated the effects of a seasonal growth pattern and structure of macrophyte species on epiphytic microcrustaceans collected from macrophyte surfaces (stems and leaves) in shallow wetlands from May 2011 to October 2012. In 2011, epiphytic microcrustaceans that preferred free-floating macrophytes (Spirodela polyrhiza and Salvinia natans) and submerged macrophytes (Potamogeton crispus and Ceratophyllum demersum) were affected by the seasonal growth of these species. Epiphytic microcrustaceans were abundant on the surface of Spirodela polyrhiza in June and August and on Salvinia natans in September and October. In 2012, epiphytic microcrustaceans preferred submerged macrophyte species over the free-floating ones. The results of stable isotope analysis showed that epiphytic microcrustaceans depend on epiphytic particulate organic matter (EPOM) from each macrophyte species rather than on suspended particulate organic matter. Small species (Coronatella rectangula, Pleuroxus laevis, and Chydorus sphaericus) used EPOM (dominated by epiphytic algae) on free-floating and submerged macrophyte species; however, relatively larger species (Ilyocryptus spinifer and Macrothrix rosea) used EPOM only from submerged macrophytes. Based on these findings, we conclude that the distribution of epiphytic microcrustaceans is determined by seasonal characteristics, morphology of macrophyte species, and abundance of food resources.

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Migration from plant to plant: an important factor controlling densities of the epiphytic cladoceran Alona (Chydoridae, Anomopoda) on lake vegetation

Abstract: We investigated seasonal changes in the density of epiphytic cladocerans Alona spp.

Cited by 24 publications

References 25 publications

Temporal dynamics of invertebrate community assembly in Lake Victoria since the late Pleistocene based on chitinous remains

Temporal dynamics of invertebrate community assembly in Lake Victoria since the late Pleistocene based on chitinous remains

Response of zooplankton to inputs of terrestrial dissolved organic matter: Food quality constraints induced by microbes

Distribution pattern of epiphytic microcrustaceans in relation to different macrophyte microhabitats in a shallow wetland (Upo wetlands, South Korea)

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