Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri …
WebDoliolids, including the species Dolioletta gegenbauri, are small gelatinous marine zooplankton of ecological significance found on productive subcontinental shelf systems worldwide.The difficulty of culturing these delicate organisms limits their investigation. In this study, we describe cultivation approaches for collecting, rearing, and maintaining the …
The Effects of Microplastics on Dolioletta …
Web1 jan. 2020 · Nylon fibers were cleared at higher rates by Dolioletta gegenbauri compared to Eucalanus pileatus. Examination of fecal pellets revealed that copepods and doliolids could ingest the about 300 µm ...
Dolioletta gegenbauri. Life cycle stages observed in …
WebA warm-water doliolid species Dolioletta gegenbauri (Uljanin, 1884) was firstly recorded in Jiaozhou Bay (JZB) during the autumn of 2019–2020.
The Effects of Microplastics on Dolioletta gegenbauri (Tunicata ...
Web23 okt. 2019 · Photodocumentation. We observed in feeding gonozooids of Dolioletta gegenbauri (Fig. 1a) that microalgae and polystyrene beads of 19.87-µm diameter were transported by cilia along the endostyle and ingested through the mouth opening. The light-reflecting polystyrene beads were clearly visible in fecal pellets (Figs. 1b, 2a, b) released …
Marine Organisms in a Rapidly Changing Ocean - MDPI
Web4 apr. 2023 · Introduction. Oceans are changing due to intensive human activities and worsening climate change. Intensive human activities around coastal areas have precipitated severe pollution, and a reduction in marine populations due to overfishing in local areas of the oceans [ 1, 2 ]. Additional CO 2 emissions that have amassed since …
Asexual reproduction of the doliolid, Dolioletta gegenbauri …
Web1 jul. 2002 · Dolioletta gegenbauri oozooids, phorozooids and gonozooids were collected throughout the year from the mid to outer shelf waters along the Wassaw transect off the coast of Savannah GA, onboard the RV Blue Fin, at a ship speed of ≤0.5 kt.
Occurrence of Dolioletta gegenbauri (Uljanin) in the North Sea
WebIN a recent issue of NATURE, Delsman1 refers to the appearance of large numbers of Doliolum nationalis at Den Helder in 1910–12, presumably carried there from the English Channel. It may be of ...
Cultivation of the Marine Pelagic Tunicate Dolioletta gegenbauri ...
Web9 aug. 2019 · Gelatinous zooplanktons play a crucial role in ocean ecosystems. However, it is generally difficult to investigate their physiology, growth, fecundity, and trophic interactions primarily due to methodological challenges, including the ability to culture them. This is particularly true for the doliolid, Dolioletta gegenbauri.
Selective feeding and linkages to the microbial food web by the
Web7 apr. 2021 · In the South Atlantic Bight, our observations suggest that hydromedusae in the genus Liriope are common predators of Dolioletta gegenbauri (unpublished observations). Mucus-feeding pelagic tunicates are generally considered to be passive grazers, feeding indiscriminately on small particles including bacteria and phytoplankton (Crocker et al. …
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