Early life stages of fish (eggs and larvae) are particularly vulnerable with mortality rates of up
to 99% recorded for a large number of species. High mortality rates result from the limited …

Global change has led to manifold changes of marine ecosystems and biodiversity world-
wide. While it has been shown that certain jellyfish and comb jelly species have increased …

Cnidaria is a phylum of predominantly marine organisms that evolved into two basic body
forms:“polyp” characterized by a tubular body; and “medusa” the free-floating stage …

Estuarine ecosystems have been described as a mosaic of habitats exhibiting different
physical, biological and chemical properties and processes. These habitats are of primary …

Hydrozoa medusae undergo blooms and seasonal fluctuations; however the drivers of such
fluctuations are unknown. To understand how medusa populations fluctuate in response to …

The study of the diversity and composition of marine communities is the first step in
understanding the development of marine ecosystems. While some cnidarian populations …

Marine invasions are of increasing concern for biodiversity conservation worldwide.
Gelatinous macrozooplankton contain members, which have become globally invasive, for …

The species composition and seasonal abundance patterns of gelatinous zooplankton are
poorly known for many European coastal-zone waters. The seasonal abundance and …

Recurrent jellyfish blooms and their impacts on ecosystem deliverables of coastal habitats
have become a major ecological concern. In view of this, repercussions of a surge in the …

The hydrozoan Blackfordia virginica has been reported over a wide geographical area,
although it is mainly restricted to scattered records within estuarine areas of temperate and …