Cryptic invasions are defined as the introduction and spread of non-native lineages within
the species' native range (intra-specific cryptic invasion) or the invasion of non-native …

Jellyfish blooms are enigmatic, in part due to uncertainty surrounding the geographic extents
of populations and underlying causes and effects of demographic change. We aimed to …

Most Scyphozoan jellyfish species have a metagenic life cycle involving a benthic, asexually
reproducing polyp stage and a sexually reproducing medusa stage. Medusae can be large …

Frequently occurring jellyfish blooms have severe impacts on the socioeconomics of coastal
areas, which stress the importance of early detection and assessments of blooming jellyfish …

Determining whether a population is introduced or native to a region can be challenging due
to inadequate taxonomy, the presence of cryptic lineages, and poor historical …

Gonionemus vertens A. Agassiz, 1862 is a small hydrozoan native to the Pacific Ocean. It
has become established in the northern and southern Atlantic Ocean as well as the …

The hydromedusa Gonionemus vertens A. Agassiz, 1862 was first detected in the Berre
Lagoon, south of France, in July 2016. Early June 2017, following an early rise in …

The invasive, euryhaline hydroid Cordylophora sp. is a colonial cnidarian present in both
freshwater and brackish water habitats. Individuals contend with osmotic stress at the tissue …

Here we report a unique trophic interaction between the cryptogenic and sometimes highly
toxic hydrozoan clinging jellyfish Gonionemus sp. and the spider crab Libinia dubia. We …

The clinging jellyfish Gonionemus sp. is a small hydromedusa species known historically
from the Swedish west coast but not reported in recent times. This species is thought to be …