scholarly journals Occurrence, inter-annual variability and zooplankton-predation impact of the invasive ctenophore Mnemiopsis leidyi and the native jellyfish Aurelia aurita in Limfjorden (Denmark) in 2010 and 2011

2012 ◽  
Vol 1 (3) ◽  
pp. 145-159 ◽  
Author(s):  
Hans Ulrik Riisgård ◽  
Cornelia Jaspers ◽  
Sandrine Serre ◽  
Kim Lundgreen
2018 ◽  
Vol 33 (1) ◽  
pp. 33
Author(s):  
Vicencio De La Cruz -Francisco ◽  
Liliana Flores -Galicia

RESUMEN. Medusas, sifonóforos y ctenóforos son organismos ecológicamente importantes por su papel como depredadores voraces en la cadena trófica, ya que en altas densidades ocasionan problemas económicos. En las costas mexicanas del Golfo de México existe conocimiento de la riqueza taxonómica de estos animales macrozooplanctónicos, pero aún se desconoce qué especies se encuentran en los arrecifes coralinos del norte de Veracruz. Este estudio presenta los primeros registros de este grupo para el Sistema Arrecifal Lobos-Tuxpan. Se identificaron tres especies de medusas, un sifonóforo y dos especies de ctenóforos a partir de registros fotográficos obtenidos en los arrecifes Tuxpan, Enmedio, Tanhuijo, Oro Verde y Lobos. El taxón Cyanea sp. se registra por primera vez para el suroeste del Golfo de México y Cestum veneris es nuevo registro para el litoral veracruzano. Las especies Aurelia aurita (medusa), Physalia physalis (sifonóforo) y Mnemiopsis leidyi (ctenóforo) se observaron en la mayoría de los arrecifes estudiados. La información aquí presentada puede ser útil para el sector turístico al evitar las medusas y sifonóforos que son tóxicos.First records of jellyfish (Cubozoa, Scyphozoa), Siphonophores (Hydrozoa), and Ctenophores (Tentaculata) of the Lobos-Tuxpan Reef System, MexicoABSTRACT. Jellyfish, siphonophores and ctenophores are ecologically important organisms due to their role as voracious predators in the trophic chain, which in high densities may cause economic problems. There is knowledge of the taxonomic wealth of these macrozooplanktonic animals in the Mexican coasts of the Gulf of Mexico, but it is still unknown what species are found in the coral reefs from the north of Veracruz. This study presents the first records of this group for the Lobos-Tuxpan Reef System. Three species of jellyfish, one siphonophore and two ctenophores, were identified through photographic records belonging to the Tuxpan, Enmedio, Tanhuijo, Oro Verde and Lobos reefs. For the first time, the species Cyanea sp. for the South-West of the Gulf of Mexico and Cestum veneris for the Veracruz coast are recorded. The species Aurelia aurita (jellyfish), Physalia physalis (siphonophore) and Mnemiopsis leidyi (ctenephore) were observed in most of the studied reefs. The information provided here may be useful in the tourist sector to avoid toxic jellyfish and siphonophores.


2020 ◽  
Vol 6 (5) ◽  
pp. 74-82
Author(s):  
N. Louppova

The abundance and biomass dynamic of massive macrozooplankton of the Black Sea was studied over 3 years. Data on the dates of mass reproduction of Jellyfish Aurelia aurita and Ctenophore invaders Mnemiopsis leidyi and Beroe ovata were obtained. The dependence of M. leidyi reproduction on the season and temperature of the medium was established, and for the other two gelatinous, on the successful reproduction of Mnemiopsis.


2020 ◽  
Vol 9 (9) ◽  
Author(s):  
Nancy Weiland‐Bräuer ◽  
Daniela Prasse ◽  
Annika Brauer ◽  
Cornelia Jaspers ◽  
Thorsten B. H. Reusch ◽  
...  

2018 ◽  
Vol 597 ◽  
pp. 137-145 ◽  
Author(s):  
J Goldstein ◽  
C Jürgensen ◽  
UK Steiner ◽  
HU Riisgård

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