Results 41 to 50 of about 775 (159)

Ground communities of the Dagestan coast of Caspian Sea in conditions of transgression of the sea and invasy of the Ctenophora Mnemiopsis Leidyi (A. Agassiz)

Юг России: экология, развитие, 2015
Benthic biocenoses of the Dagestan area of the Caspian Sea were studied. Considered distribution, composition and structure benthic in connection with observed change in environmental conditions. Special attention is given influence Mnemiopsis leidyi (A.
A. K. Ustarbekov, K. M. Guseynov, A. Sh. Gasanova   +2 more
doaj   +1 more source

Regulation and Regeneration in the Ctenophore Mnemiopsis leidyi

Developmental Biology, 2000
Lobate ctenophores (tentaculates) generally exhibit a remarkable ability to regenerate missing structures as adults. On the other hand, their embryos exhibit a highly mosaic behavior when cut into halves or when specific cells are ablated. These deficient embryos do not exhibit embryonic regulation, and generate incomplete adult body plans.
Henry, Jonathan Q., Martindale, Mark Q.
openaire   +2 more sources

Seasonal Size Composition of Gelatinous Macrozooplankton in the Sinop Peninsula of Black Sea

Marine Science and Technology Bulletin, 2019
In this study, size compositions of Aurelia aurita (Linnaeus, 1758), Pleurobrachia pileus (O. F. Müller, 1776) and Mnemiopsis leidyi A. Agassiz, 1865 were presented seasonally between March 2015 and February 2016 at the Sinop Peninsula of Black Sea ...
Zekiye BİRİNCİ ÖZDEMİR, Eylem AYDEMİR-ÇİL, Pınar GÜRBÜZER   +2 more
doaj   +1 more source

Hybridization and adaptive introgression in a marine invasive species in native habitats

iScience, 2023
Summary: Hybridization of distinct populations or species is an important evolutionary driving force. For invasive species, hybridization can enhance their competitive advantage as a source of adaptive novelty by introgression of selectively favored ...
José Martin Pujolar, Denise Breitburg, Joanna Lee, Mary Beth Decker, Cornelia Jaspers   +4 more
doaj   +1 more source

Stimulated bacterioplankton growth and selection for certain bacterial taxa in the vicinity of the ctenophore Mnemiopsis leidyi

Frontiers in Microbiology, 2012
Episodic blooms of voracious gelatinous zooplankton, such as the ctenophore Mnemiopsis leidyi, affect pools of inorganic nutrients and dissolved organic carbon by intensive grazing activities and mucus release.
Julie eDinasquet, Julie eDinasquet, Lena Maria Granhag, Lena Maria Granhag, Lasse eRiemann, Lasse eRiemann   +5 more
doaj   +1 more source

Modelling survival and connectivity of Mnemiopsis leidyi in the south-western North Sea and Scheldt estuaries [PDF]

Ocean Science, 2015
Three different models were applied to study the reproduction, survival and dispersal of Mnemiopsis leidyi in the Scheldt estuaries and the southern North Sea: a high-resolution particle tracking model with passive particles, a low-resolution particle ...
J. van der Molen, J. van Beek, S. Augustine, L. Vansteenbrugge, L. van Walraven, V. Langenberg, H. W. van der Veer, K. Hostens, S. Pitois, J. Robbens   +9 more
doaj   +1 more source

Genomic organization, evolution, and expression of photoprotein and opsin genes in Mnemiopsis leidyi: a new view of ctenophore photocytes

BMC Biology, 2012
Background Calcium-activated photoproteins are luciferase variants found in photocyte cells of bioluminescent jellyfish (Phylum Cnidaria) and comb jellies (Phylum Ctenophora).
Schnitzler Christine E, Pang Kevin, Powers Meghan L, Reitzel Adam M, Ryan Joseph F, Simmons David, Tada Takashi, Park Morgan, Gupta Jyoti, Brooks Shelise Y, Blakesley Robert W, Yokoyama Shozo, Haddock Steven HD, Martindale Mark Q, Baxevanis Andreas D   +14 more
doaj   +1 more source

The community of phytoplankton of the Dagestan area of Caspian Sea in the new ecological conditions

Юг России: экология, развитие, 2015
The materials about the phytoplankton composition and distribution in the Daghestan region of the Caspian Sea in connection with changing hydrologicaly-hydrochemical regime in conditions of anthropological and biological environment are presented. It was
A. Sh. Gasanova, K. M. Guseynov
doaj   +1 more source

The ctenophore Beroe cf. ovata in the Caspian Sea. The beginning of a new stage in the evolution of the Caspian ecosystem?

Юг России: экология, развитие, 2021
Aim. Analysis of the first data regarding the arrival of the predatory ctenophore Beroe cf. ovata in the Caspian Sea and assessment of possible effects of its introduction for the Caspian ecosystem.Material and Methods.
S. V. Vostokov, A. A. Gadzhiev, A. S. Vostokova, N. I. Rabazanov   +3 more
doaj   +1 more source

Effects of crude oil exposure on bioaccumulation of polycyclic aromatic hydrocarbons and survival of adult and larval stages of gelatinous zooplankton. [PDF]

PLoS ONE, 2013
Gelatinous zooplankton play an important role in marine food webs both as major consumers of metazooplankton and as prey of apex predators (e.g., tuna, sunfish, sea turtles).
Rodrigo Almeda, Zoe Wambaugh, Chao Chai, Zucheng Wang, Zhanfei Liu, Edward J Buskey   +5 more
doaj   +1 more source