Distribution and trophic links of gelatinous zooplankton on Dogger Bank, North Sea

  title={Distribution and trophic links of gelatinous zooplankton on Dogger Bank, North Sea},
  author={Jessica R. Frost and Anneke Denda and Clive J. Fox and Charles A. Jacoby and Rolf Koppelmann and Morten Holtegaard Nielsen and Marsh J. Youngbluth},
  journal={Marine Biology},
The ecology of small, gelatinous zooplankton is not integrated into management of Dogger Bank (54° 00′ N, 3° 25′ E to 55° 35′ N, 2° 20′ E). In pursuit of this goal, gelatinous zooplankton and their potential prey were sampled along a transect across the bank on June 10–16, 2007. Eleven species of small medusae and ctenophores were collected, with six abundant taxa occurring in greater numbers below the thermocline and in the shallower, southeastern portion of the bank. There were no… 
Gelatinous Zooplankton Trophodynamics : Ecological and Biogeochemical Influences on Pelagic Food Webs
The original work in this thesis emphasizes the value of using complimentary, novel methods to help resolve the roles gelatinous zooplankton play in top-down and bottom-up regulation of processes in marine ecosystems.
Dietary Overlap Between Jellyfish and Forage Fish in the Northern Gulf of Mexico
The results highlight that, despite local and species-specific variability, dietary overlap between Aurelia sp.
Predation patterns and prey quality of medusae in a semi-enclosed marine lake: implications for food web energy transfer in coastal marine ecosystems
Veliko Jezero (Mljet, Croatia) is a nearly enclosed karstic depression filled with saltwater, where jellyfish and prey exchange with the Adriatic Sea is negligible, making this small ecosystem ideal
Temporally varying isotopic niche overlap of the invasive ctenophore Mnemiopsis leidyi with other zooplanktivores in the western Dutch Wadden Sea
Investigation of the possible competition of M. leidyi with native macroplankton and nekton in the western Dutch Wadden Sea in March–August, 2011 by determining and comparing isotopic niches of zooplanktivores found that small ctenophores occupied a lower trophic level than large ones.
Cross-shelf movement of Chrysaora fulgida (Scyphozoa; Discomedusae) off Namibia inferred from stable isotopes (δ15N and δ13C)
Large and small specimens of two species of metagenic Scyphozoa (true jellyfishes) can be found in nearshore waters off central Namibia throughout the year. Whereas populations of Chrysaora africana
Testing the long-term stability of marine isoscapes in shelf seas using jellyfish tissues
Stable isotope-based studies of trophic interactions or movements in animals with lifespans of a year or more in shelf ecosystems can be referenced to previously published isoscape models, and do not require construction of temporally explicit isotope baseline corrections.
Emphasizing the diversity of North Sea hydromedusae by combined morphological and molecular methods
The integrated approach combining both morphological and molecular genetic analyses of North Sea hydromedusae highlights the molecular approach as a powerful tool, extending the possibilities for valid species discriminations where morphological identification is difficult.
Pelagic tunicate grazing on marine microbes revealed by integrative approaches
Marine microorganisms comprise a large fraction of ocean carbon and are central players in global biogeochemical cycling. Significant gaps remain, however, in our understanding of processes that


Microphytobenthos of the Dogger Bank: a comparison between shallow and deep areas using phytopigment composition of the sediment
The surface sediment characteristics related to benthic microalgae primary production were studied at the Dogger Bank, North Sea, in order to evaluate the potential role of microphytobenthos as a
Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem
The hypothesis that the presence of these large carnivores has affected fisheries resources, either through direct predation on larval stages, or through compe- tition for zooplankton prey is examined.
Distribution of gelatinous macrozooplankton in the southern Black Sea during 1996–1999
In this study, spatial and temporal distributions of three gelatinous macrozooplankton, the scyphozoan Aurelia aurita and the ctenophores Pleurobrachia pileus and Mnemiopsis leidyi, were evaluated
Observations on the Ecology of Pleurobrachia Pileus (Ctenophora) in the Southern Benguela Ecosystem
The population of P. pileus failed to display clear patterns of migration, although nocturnal recruitment from deeper water resulted in a deepening of the depth of occupation then, and potential spawning activities are discussed with reference to possible spawning activities.
Trophodynamics of Pleurobrachia pileus (Ctenophora, Cydippida) and ctenophore summer occurrence off the Norwegian North-West coast
Abstract Stomach-content analyses and laboratory experiments on Pleurobrachia pileus (Cydippida) showed an average digestion time of 2.0 h at 12°C and a high potential predation rate with highest
Occurrence of hydromedusae in the plankton off Northumberland (western central North Sea) and the role of planktonic predators
  • K. Nicholas, C. Frid
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 1999
It is shown that planktonic predators can influence copepod abundances throughout the year, with predators such as Pleurobrachia pileus and Meganyctiphanes norvegica occasionally exerted a high predatory impact.
Patterns of jellyfish abundance in the North Atlantic
A number of explanations have been advanced to account for the increased frequency and intensity at which jellyfish (pelagic cnidarians and ctenophores) blooms are being observed, most of which have
Long-term changes in the pelagos, benthos and fisheries of the North Sea
Pronounced changes have occurred in the fisheries, plankton and benthos of the North Sea over the last five decades. Attribution of the relative contribution of anthropogenic versus natural
Quantitative feeding ecology of the hydromedusan Nemopsis bachei in Chesapeake Bay
We determined feeding rates of the hydromedusan Nemopsis bachei L. Agassiz in the mesohaline region of Chesapeake Bay, USA during the spring of 1989 and 1990 from gut contents, digestion rates and
Chaetognaths and ctenophores in the holoplankton of the Bristol Channel
Estimates of theCopepod production compared with the derived demand of the chaetognath population showed that the decline in the copepods in the late summer was the result of feeding by this predator.