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Hydrozoa

Known as: Hydrozoan, Hydrozoans, Hydrozoas 
A class in the phylum CNIDARIA which alternates between polyp and medusa forms during their life cycle. There are over 2700 species in five orders.
National Institutes of Health

Related topics

Related topics

9 relations
CampanulariaMicrobiologicalaspects of radiation effectsphysiological aspects

Broader (2)

CnidariaCoral

Narrower (3)

Liriope tetraphyllaPhysaliaPhysalia physalis

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2013
Highly Cited
2013
The Substantial First Impact of Bottom Fishing on Rare Biodiversity Hotspots: A Dilemma for Evidence-Based Conservation
This study describes the impact of the first passage of two types of bottom-towed fishing gear on rare protected shellfish-reefs… 
Review
2006
Review
2006
Mediterranean coralligenous assemblages: A synthesis of present knowledge
Coralligenous concretions, the unique calcareous formations of biogenic origin in Mediterranean benthic environments, are… 
Review
2006
Review
2006
The distribution of mycosporine-like amino acids (MAAs) and the phylogenetic identity of symbiotic dinoflagellates in cnidarian hosts from the Mexican Caribbean
Highly Cited
2003
Highly Cited
2003
Evolutionary aspects of developmentally regulated helix-loop-helix transcription factors in striated muscle of jellyfish.
Highly Cited
2001
Highly Cited
2001
Diversity of epibenthic habitats of gammaridean amphipods in the eastern Weddell Sea
Abstract. Gammaridean amphipods appear ubiquitous in the shelf communities of the eastern Weddell Sea where more than 230 species… 
Highly Cited
2000
Highly Cited
2000
Towards understanding the phylogenetic history of Hydrozoa: Hypothesis testing with 18S gene sequence data*
Although systematic treatments of Hydrozoa have been notoriously difficult, a great deal of useful information on morphologies… 
Highly Cited
1998
Highly Cited
1998
prdl-a, a gene marker for hydra apical differentiation related to triploblastic paired-like head-specific genes.
Two homeobox genes, prdl-a and prdl-b, which were isolated from a Hydra vulgaris cDNA library, encode paired-like class… 
Highly Cited
1993
Highly Cited
1993
The analysis of paternity and maternity in the marine hydrozoan Hydractinia symbiolongicarpus using randomly amplified polymorphic DNA (RAPD) markers
For organisms in which direct observation of mating and subsequent dispersal of offspring and relatives is impossible, patterns… 
Highly Cited
1990
Highly Cited
1990
Species richness, spatial distribution and colonisation pattern of algal and invertebrate epiphytes on the seagrass Amphibolis griffithii
The distribution of epiphytic algae and sessile invertebrates on the seagrass Amphibolis griffithji is not random. The number of… 
Highly Cited
1967
Highly Cited
1967
The recognition, distribution and ultrastructure of hydrozoan nerve elements
Silver stained Cordylophora were examined by light and electron microscopy, which provided a general picture of nerve cell forms… 
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