Results 71 to 80 of about 1,709 (183)

GIS-based species distribution modeling of invasive Mnemiopsis leidyi in the southern caspian sea using satellite imageries

Egyptian Journal of Remote Sensing and Space Sciences
Due to its unique variety of species, the Caspian Sea has great ecological-economic values and the people living on its coasts use this environmental asset as a source of income. Mnemiopsis leidyi’s invasion of this ecosystem in 1999, however, has led to
Mahdieh Abadijoo, Mehdi Gholamalifard, Mehdi Mokhtarzade, Parviz Jokar, Tiit Kutser, Andrey G. Kostianoy, Aleksander V. Semenov   +6 more
doaj   +1 more source

Jellyfish and Ctenophores in Limfjorden (Denmark)—Mini-Review, with Recent New Observations

Journal of Marine Science and Engineering, 2014
Limfjorden is a major Danish water system that connects the North Sea via Thyborøn Kanal in the west and to the Kattegat in the east. Limfjorden is heavily eutrophicated and certain areas suffer from oxygen depletion each summer.
Hans Ulrik Riisgård, Josephine Goldstein   +1 more
doaj   +1 more source

Nitric oxide signaling in ctenophores

Frontiers in Neuroscience, 2023
Nitric oxide (NO) is one of the most ancient and versatile signal molecules across all domains of life. NO signaling might also play an essential role in the origin of animal organization.
Leonid L. Moroz, Leonid L. Moroz, Krishanu Mukherjee, Daria Y. Romanova   +3 more
doaj   +1 more source

Assessing Biodiversity at Eastern Oyster (Crassostrea virginica) Aquaculture and Reef Sites Utilizing Real‐Time Monitoring and Environmental DNA in Rehoboth Bay, Delaware, USA

Ecology and Evolution, Volume 15, Issue 11, November 2025.
Eastern oysters (Crassostrea virginica) are a keystone species and vital to the commercial shellfish industry, acting as environmental engineers that enhance biodiversity. To study their impact, real‐time monitoring and Environmental DNA analysis were conducted at various sites in Rehoboth Bay, Delaware and 23 species were identified, with Spot ...
Tahera Attarwala, Ali Parsaeimehr, Gulnihal Ozbay   +2 more
wiley   +1 more source

Connectivity and Population Structure in a Marginal Sea—A Review

Diversity and Distributions, Volume 31, Issue 7, July 2025.
ABSTRACT Aim The current biodiversity crisis calls for conservation measures that limit or reduce the negative human impact on key habitats and vulnerable wild populations. To effectively protect biodiversity at all levels, including intra‐specific diversity, conservation measures should, ideally, be aligned with the connectivity and genetic structure ...
Simon Henriksson, Per Erik Jorde, Charlotte Berkström, Guldborg Søvik, Pierre De Wit, Halvor Knutsen, Even Moland, Carl André, Marlene Jahnke   +8 more
wiley   +1 more source

Recolonization of germ-free Mnemiopsis leidyi considering different microbial diversity

, 2022
The comb jelly Mnemiopsis leidyi counts as one of the most invasive marine species in the world due to its rapid adaptation to new habitats. Since different populations of Mnemiopsis all contain a specific core microbiome, it is assumed that their ...
Schmidt, Samantha
core  

Mnemiopsis leidyi in the northern Adriatic: here to stay?

Journal 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

A Spectacular Northeast Pacific Invasion by a Low Genetic Diversity Parasite, Orthione Griffenis

Ecology and Evolution, Volume 15, Issue 3, March 2025.
This study examined the genetic structure of the invasive isopod parasite, Orthione griffenis, between Morro Bay, California, and Ketchikan, Alaska, using ddRAD sequencing and estimated its larval dispersal range from laboratory‐based survival tests. There was a lack of genetic diversity, structure, and isolation by distance across O.
Emily R. Curcio, Viridiana Avila‐Magaña, Joshua Mayo, Leanne E. Elder, Kelly R. Martin, Grace K. Roa, John W. Chapman, Jingchun Li   +7 more
wiley   +1 more source

eDNA Metabarcoding Applications Across Italian Marine Coastal Ecosystems: An Overview

Environmental DNA, Volume 7, Issue 2, March/April 2025.
Environmental DNA (eDNA) metabarcoding enhances our ability to protect marine habitats through an integrative assessment of the environmental health status. Here, we provide a time‐based overview of the applications of the eDNA metabarcoding methodology in the Italian marine and coastal ecosystems.
Alice Tagliabue, Giulia Furfaro, Andrea Galimberti, Antonia Bruno, Lorenzo Zane, Alberto Pallavicini, Stefano Piraino   +6 more
wiley   +1 more source

Distribution and abundance of Cladocera, Copepoda and impacts of alien species in the southwestern Caspian Sea during 1996-2014 [PDF]

بوم‌شناسی آبزیان, 2019
The Caspian Sea ecosystem has been suffered from many problems since 1980s. Owing to the significance of zooplankton communities in marine ecosystems, the state of the fluctuations of Copepoda and Cladocera species and their relationship with Ctenophora ...
Siamak Bagheri, Jalil Sabkara
doaj