Results 71 to 80 of about 775 (159)

Invasion genomics of lionfish in the Mediterranean Sea

open access: yesEcology and Evolution, Volume 14, Issue 3, March 2024.
Lionfish are well‐known for having invaded the Caribbean with devastating ecological effects. Here we study the genomics of a recent invasion of lionfish in the Mediterranean, coming from the Red Sea via the Suez Canal. We found that genetic diversity has not declined during the invasion phase, and some genes potentially under selection may have ...
Giacomo Bernardi   +5 more
wiley   +1 more source

Formation of the Statolith in the Ctenophore Mnemiopsis leidyi [PDF]

open access: yesThe Biological Bulletin, 2014
The aboral sensory organ (apical organ) of ctenophores contains a statocyst with a single large statolith. The statolith comprises living cells (lithocytes), each containing a large membrane-bound concretion. The statolith is supported on the distal ends of four compound motile mechanoresponsive cilia (balancers) which control the beat frequencies of ...
openaire   +3 more sources

Environmental constraints of the invasive Mnemiopsis leidyi in Scandinavian waters [PDF]

open access: yesLimnology and Oceanography, 2012
We studied the seasonal dynamics of the invasive ctenophore Mnemiopsis leidyi over its distribution range from Skagerrak into the Baltic Proper during 1 yr and related this to ambient physical and biological variables. The appearance of M. leidyi was sporadic in the Baltic Proper, with 60‐fold lower abundance than in the Skagerrak and Kattegat (mean 0 ...
Haraldsson, M.   +5 more
openaire   +3 more sources

Mnemiopsis leidyi in the northern Adriatic: here to stay?

open access: yesJournal of sea research, 2017
Mnemiopsis leidyi has successfully made the transition from its native spatial range along the Atlantic coast of North and South America to many areas of the Eurasian seas. In summer 2016, we observed M. leidyi at several sites within the northern Adriatic (Mediterranean Sea).
Paliaga, Paolo, Lučić, Davor
openaire   +4 more sources

MNEMIOPSIS LEIDYI IMPACT ON SOME TROPHICAL CHAINS OF THE CASPIAN SEA

open access: yesЮг России: экология, развитие, 2015
Results of monitoring investigations over the past 10 years are presented concerning the distribution of a new species-invader in the Caspian Sea, Mnemiopsis leidyi.
A. M. KAMAKIN   +2 more
doaj   +1 more source

Extracellular DNA traps in a ctenophore demonstrate immune cell behaviors in a non-bilaterian

open access: yesNature Communications
The formation of extracellular DNA traps (ETosis) is a first response mechanism by specific immune cells following exposure to microbes. Initially characterized in vertebrate neutrophils, cells capable of ETosis have been discovered recently in diverse ...
Lauren E. Vandepas   +6 more
doaj   +1 more source

The impacts of Mnemiopsis leidyi on Kilka resources in the southern Caspian Sea

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2001
There are 3 species of kilka in the Caspian Sea consist Of: Clupeonella engrauliformis, C. grimmi and C. cultriventris. These species are caught by fishing method of tunnel net with underwater light in the inshore waters (depths of 40-100m).
H. Fazli; A. Rohi
doaj  

Lethal and sublethal effects of oil, chemical dispersant, and dispersed oil on the ctenophore Mnemiopsis leidyi

open access: yesAquatic Biology, 2015
We established the lethal levels for water-accommodated fractions of Corexit® 9500A chemical dispersant, crude oil (WAF), and dispersed crude oil (CEWAF) for the ctenophore Mnemiopsis leidyi at both 15 and 23°C.
RF Peiffer, JH Cohen
doaj   +1 more source

An investigation on abundance and distribution of Mnemiopsis leidyi in Guilan waters, southwest Caspian Sea

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2005
The alien ctenophore Mnemiopsis leidyi which was transported from the Black Sea into the Caspian Sea by the end 1990s has since affected this new ecosystem. We studied the spatial and temporal distribution of the ctenophore from July 2001 to July 2002 in
S. Bagheri
doaj  

An ecological investigating on controlling Mnemiopsis leidyi population activity 6: molecular test in identification of Mnemiopsis leidyi

open access: yes, 2009
In this study population genetic structure of Mnemiopsis leidyi were examined by 200 samples from the Caspian Sea. Samples were collected from Guilan province (Astara region), Mazandaran province (Amir Abad region), Golestan province (Gomishan region) and north part of the Caspian Sea. 50 samples were collected from each region.
Laloei, Faramarz   +18 more
openaire   +1 more source

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