Results 51 to 60 of about 1,635 (199)

Questioning the rise of gelatinous zooplankton in the World's oceans [PDF]

, 2012
During the past several decades, high numbers of gelatinous zooplankton species have been reported in many estuarine and coastal ecosystems. Coupled with media-driven public perception, a paradigm has evolved in which the global ocean ecosystems are ...
Acuña, Alenka Malej, Atkinson, Beaglehole, Brodeur, Brodeur, Butterfield, Carlos M. Duarte, Cathy H. Lucas, Chen, Claudia E. Mills, Condon, Condon, Costello, Dakin, Daly, Daryanabard, Dawson, Dong, Ducklow, Edwards, Eiane, Gaillard, Galigher, Gand, Gorokhova, Goy, Graham, Grassle, Hagadorn, Hamner, Hamner, Herdman, Hermes Mianzan, Jackson, Jennifer E. Purcell, Kelly L. Robinson, Kelly R. Sutherland, Kogovšek, Kott, Kylie A. Pitt, Laurence P. Madin, Lavaniegos, Lotan, Lynam, Lynam, Macgillivray, Madin, Martin, Martin, Mary Beth Decker, Mayer, Michael N Dawson, Mills, Mills, Mills, Mills, Nel, Parsons, Pauly, Pauly, Pauly, Pickerill, Purcell, Péron, Quoy, Richardson, Rigby, Robert H. Condon, Russell, Russell, Sheard, Shin-ichi Uye, Stasinska, Stefan Gelcich, Steven H.D. Haddock, Strathmann, Sutherland, Uye, Uye, Vinogradov, William M. Graham   +81 more
core   +4 more sources

Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean

Environmental DNA, Volume 7, Issue 2, March/April 2025.
In the face of climate change, organisms must adapt or shift their ranges to survive. Our study conducted the first COI marker‐based eDNA survey in the Pacific Gateway of the Arctic Ocean, analyzing seawater samples from the Bering Strait and Chukchi Sea.
Gerlien Verhaegen, Tatsuya Kawakami, Ayla Murray, Akihide Kasai, Charlotte Havermans   +4 more
wiley   +1 more source

High spatial heterogeneity of two planktonic cnidarian species related to the variability of a shelf-slope front at short time scales

Scientia Marina, 2016
We investigated the variability in the mesoscale distribution of the siphonophore Muggiaea atlantica and the hydromedusa Aglaura hemistoma in relation to the rapid spatial oscillations of the shelf-slope front off the Catalan coast (NW Mediterranean ...
Elena Guerrero, Anna Marrodán, Ana Sabatés, Covadonga Orejas, Josep Maria Gili   +4 more
doaj   +1 more source

Modular shadowgraph imaging for zooplankton ecological studies in diverse field and mesocosm settings

Limnology and Oceanography: Methods, Volume 23, Issue 1, Page 67-86, January 2025.
Abstract Various iterations of shadowgraph imaging have been used to quantify zooplankton in situ with high spatial resolution. Because these systems can image relatively large volumes of water, they are especially useful for resolving less common meso‐ or macrozooplankton taxa (< 50 ind. m−3), such as larval fishes and gelatinous animals.
Adam T. Greer, Patrick I. Duffy, Tim J. W. Walles, Charles Cousin, Laura M. Treible, Kyle D. Aaron, Jens C. Nejstgaard   +6 more
wiley   +1 more source

Are freshwater turtles macro-epibionts indicators of water quality of the streams where the turtles live? [PDF]

Anais da Academia Brasileira de Ciências
Organisms that live above others can give information not only about the relation between them but also about the environment they inhabit. In that sense, this work studies the relationship between epibionts living on freshwater turtles and the impact ...
ROCÍO MARÍA SÁNCHEZ, LEANDRO ALCALDE
doaj   +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  

Mitochondrial diversity in Gonionemus (Trachylina:Hydrozoa) and its implications for understanding the origins of clinging jellyfish in the Northwest Atlantic Ocean [PDF]

, 2017
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PeerJ 5 (2017): e3205, doi:10.7717/peerj.3205.Determining whether a population is introduced or native
Carman, Mary R., Govindarajan, Annette F., Khaidarov, Marat, Semenchenko, Alexander, Wares, John P.   +4 more
core   +2 more sources

A systematic comparative description of extant turtle humeri, with comments on humerus disparity and evolution based on fossil comparisons

The Anatomical Record, Volume 307, Issue 11, Page 3437-3505, November 2024.
Abstract The humerus is central for locomotion in turtles as quadrupedal animals. Osteological variation across testudine clades remains poorly documented. Here, we systematically describe the humerus anatomy for all major extant turtle clades based on 38 species representing the phylogenetic and ecological diversity of crown turtles.
Guilherme Hermanson, Fernando A. M. Arnal, Tomasz Szczygielski, Serjoscha W. Evers   +3 more
wiley   +1 more source

The highly toxic and cryptogenic clinging jellyfish Gonionemus sp. (Hydrozoa, Limnomedusae) on the Swedish west coast [PDF]

PeerJ, 2019
The clinging jellyfish Gonionemus sp. is a small hydromedusa species known historically from the Swedish west coast but not reported in recent times. This species is thought to be native to the northwest Pacific where it is notorious for causing severe ...
Annette F. Govindarajan, Björn Källström, Erik Selander, Carina Östman, Thomas G. Dahlgren   +4 more
doaj   +2 more sources

Morphological diversity of medusan lineages constrained by animal–fluid interactions [PDF]

, 2007
Cnidarian medusae, commonly known as jellyfish, represent the earliest known animal taxa to achieve locomotion using muscle power. Propulsion by medusae requires the force of bell contraction to generate forward thrust.
Colin, Sean P., Costello, John H., Dabiri, John O.   +2 more
core   +2 more sources