Digestion and predation rates of zooplankton by the pleustonic hydrozoan<i>Velella velella</i>and widespread blooms in 2013 and 2014

Purcell, Jennifer E.; Milisenda, Giacomo; Rizzo, Aldo; Carrion, Steven A.; Zampardi, Serena; Airoldi, Sabina; Zagami, Giacomo; Guglielmo, Letterio; Boero, Ferdinando; Doyle, Thomas K.; Piraino, Stefano

doi:10.1093/plankt/fbv031

Cited by 37 publications

(27 citation statements)

References 21 publications

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“…Velella velella (Linnaeus, 1758), commonly known as by-the-wind sailor, is a cosmopolitan holoplanktonic, free-floating marine hydrozoan living in open waters at tropical and temperate latitudes (Daniel 1976;Bieri 1977;McGrath 1985McGrath , 1994Evans 1986;Mianzan & Girola 1990;Flux 2008;Gershwin et al 2010;Purcell et al 2015;Gershwin 2016;Pires et al 2018). The polymorphic colony, up to 120 mm long (Bieri 1977), is enclosed in an oval chitinous pneumatophore, positively buoyant and characterized by an upright and triangular dorsal sail.…”

Section: Introductionmentioning

confidence: 99%

“…Swarms are known to form offshore (Daniel 1976;Evans 1986;Purcell et al 2012), in particular over deep basins , suggesting that the larval cycle of this species is carried out in deep waters (Woltereck 1904). On the other hand, thanks to massive accumulations on beaches, some information is available on V. velella strandings around the world (Bieri 1977;McGrath 1985McGrath , 1994Kemp 1986;Purcell et al 2015). Particularly, their occurrence in the Mediterranean basin is known since ancient times (Imperato 1599;Colonna 1616;Carburi 1757;Costa 1843).…”

Section: Introductionmentioning

confidence: 99%

“…These high biomasses may have important consequences on the entire planktonic trophic web of the basin. However, despite their relevance, with the exception of the work by Purcell et al (2015) regarding the diel-feeding patterns and digestion periods of V. velella, the species is only reported secondarily, as part of studies on other organisms in the scientific literature available for the region (Brian 1923;Issel 1928). Indeed, recently, Betti et al (2017) described the occurrence of V. velella colonies along the Ligurian coasts, within exceptional strandings of the pelagic snail Janthina pallida W. Thompson, 1840, occurred during persistent southerly winds.…”

Section: Introductionmentioning

confidence: 99%

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Massive strandings ofVelella velella(Hydrozoa: Anthoathecata: Porpitidae) in the Ligurian Sea (North-western Mediterranean Sea)

Betti

Enrichetti

et al. 2019

The European Zoological Journal

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Velella velella, the so-called by-the-wind sailor, is a common member of the open-ocean pleustonic fauna, worldwide distributed in tropical and temperate regions. Thanks to their sail protruding above the sea surface, floating polymorphic colonies of this hydrozoan are carried by winds, and tend to aggregate in large swarms, that often get stranded along the shores. Although these events are commonly observed in springtime along the Ligurian coasts (North-western Mediterranean Sea), no quantitative characterization was ever made. The aim of this study was to characterize the stranding events that occurred in spring 2016 along the Ligurian coast, by evaluating the influence of the local sea conditions and by quantifying the abundance of the stranded colonies in each event. Their size-frequency distribution and biomass were examined, and the associated mollusc fauna identified and counted. The magnitude of these episodes was so relevant that, along the Ligurian coasts, the V. velella strandings constitute one of the most important biological deposition of organic matter; nevertheless, the ecological role of these remarkable and stochastic accumulations of chitin along the coast is still unexplored.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Massive strandings ofVelella velella(Hydrozoa: Anthoathecata: Porpitidae) in the Ligurian Sea (North-western Mediterranean Sea)

Betti

Enrichetti

et al. 2019

The European Zoological Journal

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“…Velella have a global distribution in both tropical and temperate open ocean waters and are well known for large‐scale beach strandings (Purcell et al. ). Indeed, reports of these large strandings account for much of the data available about Velella abundance, density, and movement dynamics.…”

Section: Pelagic Organisms As Subsidies To Nearshore Rocky Reef Habitmentioning

confidence: 99%

“…A second gelatinous organism that provides a prominent subsidy to central California kelp forests is the surface-dwelling pelagic hydrozoan, Velella velella (hereafter Velella). Velella have a global distribution in both tropical and temperate open ocean waters and are well known for largescale beach strandings (Purcell et al 2015).…”

Section: By-the-wind Sailor (Velella Velella)mentioning

confidence: 99%

Coastal marine ecosystem connectivity: pelagic ocean to kelp forest subsidies

Zuercher

Galloway

2019

Ecosphere

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The movement of trophic resources between and among ecosystems, referred to as cross‐ecosystem subsidies, is a common phenomenon. In the marine environment, both adjacent and distant ecosystems are connected by oceanographic forces that transport nutrients, organisms, and other materials. Kelp forest ecosystems are one example of an open marine system that both exports and receives trophic subsidies. Though rocky reefs are rich in kelp‐based energy produced internally, kelp forest organisms also rely on phytoplankton, and the influx of holoplankton and meroplankton from adjacent open ocean habitats. In this paper, we seek to clarify the identity of holoplanktonic and meroplanktonic subsidies, quantify their energetic and nutrient contributions to the kelp forest, and further explore the impacts of these subsidies for individual consumers and for kelp forest communities. We reviewed six individual subsidy organisms that are commonly advected to kelp forests on the West coast of North America, and show that these organisms from the pelagic ocean represent important resource pulses for kelp forest consumers. In addition, we summarize the characteristics of subsidies, consumers, and recipient ecosystems that provide insight into the dynamics of subsidy influx and impacts to recipient systems. Finally, we provide suggestions as scientists move forward with efforts to quantify the impacts of cross‐ecosystem subsidies. Trophic subsidies are a major force shaping both marine and terrestrial communities and ecosystems. Quantitative information about these subsidies and their impacts on food webs will not only improve our understanding of these ecosystems, but also improve food web models, and predictions of ecosystem response to change.

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From Marine Protected Areas to MPA Networks

Boero

2017

Management of Marine Protected Areas

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Digestion and predation rates of zooplankton by the pleustonic hydrozoanVelella velellaand widespread blooms in 2013 and 2014

Cited by 37 publications

References 21 publications

Massive strandings ofVelella velella(Hydrozoa: Anthoathecata: Porpitidae) in the Ligurian Sea (North-western Mediterranean Sea)

Massive strandings ofVelella velella(Hydrozoa: Anthoathecata: Porpitidae) in the Ligurian Sea (North-western Mediterranean Sea)

Coastal marine ecosystem connectivity: pelagic ocean to kelp forest subsidies

From Marine Protected Areas to MPA Networks

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