Results 11 to 20 of about 1,465 (171)

Size‐based changes in trophic ecology and nutritional quality of moon jellyfish (Aurelia labiata)

Ecosphere, 2023
Despite their seemingly watery constitution, jellyfish are eaten by a diverse range of predators. However, while the role of jellyfish in marine food webs is gaining attention, the nutritional value of these gelatinous organisms and how it varies remain ...
Jessica Schaub, Anna K. McLaskey, Ian Forster, Brian P. V. Hunt   +3 more
doaj   +2 more sources

Hidden diversity of Ctenophora revealed by new mitochondrial COI primers and sequences. [PDF]

Mol Ecol Resour, 2022
Abstract The mitochondrial gene cytochrome‐c‐oxidase subunit 1 (COI) is useful in many taxa for phylogenetics, population genetics, metabarcoding, and rapid species identifications. However, the phylum Ctenophora (comb jellies) has historically been difficult to study due to divergent mitochondrial sequences and the corresponding inability to amplify ...
Christianson LM, Johnson SB, Schultz DT, Haddock SHD.   +3 more
europepmc   +2 more sources

Pleurobrachia bachei A. Agassiz 1860

Journal of Comparative Neurology, 2016
Pleurobrachia bachei A. Agassiz, 1860 Synonyms in the area: Pleurobrachia pileus —Palma 1971,1994; Palma & Meruane 1975; Palma & Rosales 1995; Pleurobrachia sp.—Pagès et al. 2001. Remarks: the species was recorded off Valparaiso region (33ºS) as Pleurobrachia pileus by Palma (1971, 1994), Palma & Meruane (1975), and Palma & Rosales (1995).
OLIVEIRA, OTTO M. P., MIRANDA, THAÍS P., ARAUJO, ENILMA M., AYÓN, PATRICIA, CEDEÑO-POSSO, CRISTINA M., CEPEDA-MERCADO, AMANCAY A., CÓRDOVA, PABLO, CUNHA, AMANDA F., GENZANO, GABRIEL N., HADDAD, MARIA ANGÉLICA, MIANZAN, HERMES W., MIGOTTO, ALVARO E., MIRANDA, LUCÍLIA S., MORANDINI, ANDRÉ C., NAGATA, RENATO M., NASCIMENTO, KARINE B., JÚNIOR, MIODELI NOGUEIRA, PALMA, SERGIO, QUIÑONES, JAVIER, RODRIGUEZ, CAROLINA S., SCARABINO, FABRIZIO, SCHIARITI, AGUSTÍN, STAMPAR, SÉRGIO N., TRONOLONE, VALQUÍRIA B., MARQUES, ANTONIO C.   +24 more
  +8 more sources

Environmental drivers and ecological implications of a ctenophore swarm: a case study from the Bay of Bengal, northern Indian Ocean

Journal of Water and Climate Change, 2023
Ctenophores are quick responders to coastal environmental changes and play a crucial role in marine food web dynamics. We report the environmental drivers of a ctenophore swarm (Pleurobrachia spp.) and associated ecological changes in estuarine and ...
Alfisa Siddique, Aishee Bhowal, Jasmine Purushothaman, Rakhesh Madhusoodhanan, Dhriti Banerjee   +4 more
doaj   +1 more source

Origin and evolution of the Rax homeobox gene by comprehensive evolutionary analysis

FEBS Open Bio, Volume 10, Issue 4, Page 657-673, April 2020., 2020
Evolution of RAX transcription factor, crucial for eye development, was comprehensively analyzed. Our analyses suggest that Rax appeared in the common ancestor of Cnidaria and Bilateria. Jawed vertebrate Rax and Rax2 might originate from segmental duplication of the ancient Rax locus. At least five independent Rax2 gene loss events occurred in mammals.
Tetsuo Kon, Takahisa Furukawa
wiley   +1 more source

Kelp Forest Zooplankton, Forage Fishes, and Juvenile Salmonids of the Northeast Pacific Nearshore

Marine and Coastal Fisheries, Volume 12, Issue 1, Page 4-20, February 2020., 2020
Abstract Kelp forests are an important ecological component of temperate coastal systems that are sensitive to anthropogenic disturbance and are in decline in many locations globally. In the northeastern Pacific Ocean off the coast of Washington, USA, bull kelp Nereocystis luetkeana forests are seasonally used by juvenile salmonids and forage fishes ...
J. Anne Shaffer, Stuart H. Munsch, Jeffery R. Cordell   +2 more
wiley   +1 more source

Nuevos registros y morfometría de Pleurobrachia pileus (Phylum Ctenophora) en el golfo de México

Revista Mexicana de Biodiversidad, 2017
 Se amplía la distribución de Pleurobrachia pileus del norte del océano Atlántico al suroeste del golfo de México con el primer registro en aguas tropicales en 3 sistemas estuarino lagunares del estado de Veracruz: La Mancha (enero 2013), Mandinga y del
José Alberto Ocaña-Luna, Ángeles Mecalco-Hernández, Marina Sánchez-Ramírez, Manuel Castillo-Rivera   +3 more
doaj   +1 more source

Small Jellyfish as a Supplementary Autumnal Food Source for Juvenile Chaetognaths in Sanya Bay, China

Journal of Marine Science and Engineering, 2020
Information on the in situ diet of juvenile chaetognaths is critical for understanding the population recruitment of chaetognaths and their functional roles in marine food web.
Lingli Wang, Minglan Guo, Tao Li, Hui Huang, Sheng Liu, Simin Hu   +5 more
doaj   +1 more source

Evidence for involvement of Wnt signalling in body polarities, cell proliferation, and the neuro-sensory system in an adult ctenophore. [PDF]

PLoS ONE, 2013
Signalling through the Wnt family of secreted proteins originated in a common metazoan ancestor and greatly influenced the evolution of animal body plans. In bilaterians, Wnt signalling plays multiple fundamental roles during embryonic development and in
Muriel Jager, Cyrielle Dayraud, Antoine Mialot, Eric Quéinnec, Hervé le Guyader, Michaël Manuel   +5 more
doaj   +1 more source

Not All Ctenophores Are Bioluminescent: Pleurobrachia

The Biological Bulletin, 1995
The traditional view has been that all species of the phylum Ctenophora are capable of producing light. Our inability to elicit luminescence from members of the well-known genus Pleurobrachia, as well as a lack of published documentation, led to an effort to determine whether this genus is truly bioluminescent.
S H D, Haddock, J F, Case
openaire   +3 more sources