Results 41 to 50 of about 458 (144)

Resolving abrupt frontal gradients in zooplankton community composition and marine snow fields with an autonomous Zooglider

Limnology and Oceanography, Volume 70, Issue S1, Page S102-S120, July 2025.
Abstract An autonomous Zooglider navigated across the California Current Front into low salinity, minty waters characteristic of the California Current proper in both summers of 2019 and 2021. Diving to 400 m depth, Zooglider transited another near‐surface frontal gradient somewhat inshore. These frontal gradients were generally associated with changes
Sven Gastauer, Mark D. Ohman
wiley   +1 more source

Fluorescence patterns and diversity of hydrozoans from Bocas del Toro, Panama

Ciencias Marinas
Many metazoans contain molecules capable of fluorescence, the absorption and re-emission of light. Since the anatomical distribution, or patterning, of these molecules is variable across taxa, patterns of fluorescence may serve as a powerful diagnostic ...
Lara M Beckmann, Bridget A Vincent, Alexandra De León, Jessica Masterman, Emily S Lau, Steven HD Haddock   +5 more
doaj   +1 more source

Phylogenetics of Trachylina (Cnidaria: Hydrozoa) with new insights on the evolution of some problematical taxa [PDF]

, 2017
Some of the most interesting and enigmatic cnidarians are classified within the hydrozoan subclass Trachylina. Despite being relatively depauperate in species richness, the clade contains four taxa typically accorded ordinal status: Actinulida ...
Bentlage, Bastian, Cartwright, Paulyn, Collins, Allen G., Haddock, Steven H.D., Jankowski, Thomas, Jarms, Gerhard, Lindner, Alberto, Lindsay, Dhugal, Norenburg, Jon L.   +8 more
core  

Investigating pelagic biodiversity and gelatinous zooplankton communities in the rapidly changing European Arctic: An eDNA metabarcoding survey

Environmental DNA, Volume 6, Issue 3, May–June 2024.
In this study, we implement eDNA metabarcoding to investigate patterns of pelagic diversity in the European Arctic. We successfully detected a wide range of taxa belonging to the marine metazoan and gelatinous zooplankton communities. We demonstrate vertical patterns of diversity as well as relationships between taxa and water mass indicators such as ...
Ayla Murray, Taylor Priest, Adria Antich, Wilken‐Jon von Appen, Stefan Neuhaus, Charlotte Havermans   +5 more
wiley   +1 more source

Autonomous eDNA collection using an uncrewed surface vessel over a 4200‐km transect of the eastern Pacific Ocean

Environmental DNA, Volume 6, Issue 1, January–February 2024.
An uncrewed surface vessel and an automated eDNA sample collection device were used to obtain eDNA samples over a 4200‐km, 29‐day voyage in the eastern North Pacific Ocean. The results of the study revealed important technical considerations for acquiring samples autonomously and highlight how these platforms can increase the accessibility of obtaining
Christina Preston, Kevan Yamahara, Douglas Pargett, Chloe Weinstock, James Birch, Brent Roman, Scott Jensen, Brian Connon, Richard Jenkins, John Ryan, Christopher Scholin   +10 more
wiley   +1 more source

Davidson Seamount Taxonomic Guide [PDF]

, 2008
Davidson Seamount is one of the largest seamounts in U.S. waters and the first to be characterized as a “seamount.” In 2002 and 2006, the Monterey Bay National Marine Sanctuary (MBNMS) led two multi-institutional expeditions to characterize the geology ...
Burton, Erica J., Lundsten, Lonny
core  

La diversidad oculta en las identificaciones basadas en la morfología de especies invasoras de amplia distribución: El caso de la bien conocida hidromedusa Craspedacusta sowerbii Lankester 1880 [PDF]

, 2019
A relatively scarce number of morphological features available for delimiting closely related species and an increasingly worrisome scenario on Global Climate Change causing the rapid dispersion of invasive alien species can lead to the rapid spread of ...
El Aamri, Fátima, Iazza, Badiâa, López González, Pablo José, Moukrim, Abdellatif, Oualid, Jaouad Abou, Tamsouri, Naoufal M.   +5 more
core   +1 more source

Primer registro de la medusa urticante invasora Gonionemus vertens en el hemisferio sur (Mar del Plata, Argentina) [PDF]

, 2014
En este trabajo registra el primer hallazgo de la hidromedusa Gonionemus vertens Agassiz, 1862 en el hemisferio sur. Alrededor de 30 medusas recientemente liberadas fueron encontradas en un acuario en septiembre de 2008.
Genzano, Gabriel Nestor, Mianzan, Hermes Walter, Pujol, M. G., Rodriguez, Carolina Soledad   +3 more
core  

Pelagic Cnidaria of Mississippi Sound and Adjacent Waters [PDF]

, 1975
Investigations were made in Mississippi Sound and adjacent waters from March 1968 through March 197 1 to record the occurrence and seasonality of planktonic cnidarians. About 700 plankton samples were taken from estuarine and oceanic areas.
Burke, W. David
core   +3 more sources

Molecular Phylogenetics of Thecata (Hydrozoa, Cnidaria) Reveals Long-Term Maintenance of Life History Traits despite High Frequency of Recent Character Changes [PDF]

, 2017
Two fundamental life cycle types are recognized among hydrozoan cnidarians, the benthic (generally colonial) polyp stage either producing pelagic sexual medusae or directly releasing gametes elaborated from an attached gonophore.
Couloux, Arnaud, Cruaud, Corinne, Leclère, Lucas, Manuel, Michael, Schuchert, Peter   +4 more
core