Results 31 to 40 of about 643 (175)
Limnology and Oceanography, Volume 64, Issue 5, Page 2092-2113, September 2019., 2019 Abstract Zooplankton respond to light levels, oceanographic conditions, and other cues through diel vertical migrations (DVMs), which can occur at dawn and dusk. However, unraveling the influence of these drivers is difficult without high‐resolution time series data encompassing multiple events that can alter zooplankton DVM.
Sabrina M. Parra +7 more
wiley +1 more source
Scientia Marina, 2000 The assemblages of medusae and ctenophores were examined from samples collected each winter from St Helena Bay, over the 10-year period 1988-1997.
Emmanuelle Buecher, Mark John Gibbons
doaj +1 more source
Distinct gelatinous zooplankton communities across a dynamic shelf sea
Limnology and Oceanography, Volume 64, Issue 4, Page 1802-1818, July 2019., 2019 Abstract Understanding how gelatinous zooplankton communities are structured by local hydrography and physical forcing has important implications for fisheries and higher trophic predators. Although a large body of research has described how fronts, hydrographic boundaries, and different water masses (e.g., mixed vs. stratified) influence phytoplankton
Damien Haberlin +3 more
wiley +1 more source
Zooglider: An autonomous vehicle for optical and acoustic sensing of zooplankton
Limnology and Oceanography: Methods, Volume 17, Issue 1, Page 69-86, January 2019., 2019 Abstract We present the design and preliminary results from ocean deployments of Zooglider, a new autonomous zooplankton‐sensing glider. Zooglider is a modified Spray glider that includes a low‐power camera (Zoocam) with telecentric lens and a custom dual frequency Zonar (200 and 1000 kHz). The Zoocam quantifies zooplankton and marine snow as they flow
Mark D. Ohman +6 more
wiley +1 more source
Limnology and Oceanography, Volume 63, Issue 4, Page 1741-1761, July 2018., 2018 Abstract While losses from mortality are as important as gains from reproduction in zooplankton population dynamics, the former are more challenging to quantify. We used two approaches to provide complementary insights into the mortality of a biomass‐dominant copepod, Calanus helgolandicus, at Station L4 in the English Channel.
Jacqueline L. Maud +4 more
wiley +1 more source
International Journal of Oceanography, Volume 2015, Issue 1, 2015., 2015 Ctenophores exist throughout the Northeast U.S. Continental Shelf Ecosystem, but the underlying mechanisms that control ctenophore populations at this scale are not clear. Ctenophore population data over the last 30 years coincides with changes in several water masses on the shelf, but discovering which water mass was most influential was problematic ...
Rebecca Sparks +3 more
wiley +1 more source
International Journal of Oceanography, Volume 2014, Issue 1, 2014., 2014 Previous descriptions have noted that the stomach samples of spiny dogfish, Squalus acanthias, showed a major increase in the overall occurrence and hence implied abundance of Ctenophora. This apparent and persistent gelatinous zooplankton outbreak is increasingly more common in the world’s oceans.
Michael D. Ford +2 more
wiley +1 more source
EvoDevo, 2016 Background An essential developmental pathway in sexually reproducing animals is the specification of germ cells and the differentiation of mature gametes, sperm and oocytes. The “germline” genes vasa, nanos and piwi are commonly identified in primordial
Adam M. Reitzel +2 more
doaj +1 more source
From Notochord Formation to Hereditary Chordoma: The Many Roles of Brachyury
BioMed Research International, Volume 2013, Issue 1, 2013., 2013 Chordoma is a rare, but often malignant, bone cancer that preferentially affects the axial skeleton and the skull base. These tumors are both sporadic and hereditary and appear to occur more frequently after the fourth decade of life; however, modern technologies have increased the detection of pediatric chordomas.
Yutaka Nibu +3 more
wiley +1 more source
Growth rate of Pleurobrachia pileus determined experimentally
, 2014 Growth rate of Pleurobrachia pileus determined ...
Javiera Martinez (8008862) +1 more
core +1 more source