Siphonophore Biology

Mackie, G. O.; Pugh, Philip; Purcell, Jennifer E.

doi:10.1016/s0065-2881(08)60074-7

Cited by 138 publications

(162 citation statements)

References 119 publications

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“…Nonetheless, it was mainly found between 600 and 1500 m, with a mean depth, for the nectophores, of 753 m. There appears to be some latitudinal change in the depth distribution with the shallowest mean depth (480 m) being found between 10 and 15°N, and the deepest (905 m) between 25 and 30°N. These latitudinal depth changes appear to related to the prevailing hydrographical conditions (see Fasham and Angel, 1975;Mackie et al, 1987). F. vityazi appears, for the most part, to be confined to deeper South Atlantic Central Water (mixed with Antarctic Intermediate Water) and the boundary between this water mass and North Atlantic Central Water, to the north, may be acting as a barrier to its distribution.…”

Section: Distributionmentioning

confidence: 96%

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Pugh¹

1998

Sci. Mar.

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SUMMARY: Ten complete specimens of Frillagalma vityazi Daniel, 1966 (Siphonophorae, Agalmatidae) were collected by the submersibles Johnson-Sea-Link I and II. These have allowed a more detailed description of the species to be made, as it was previously known only by its ill-preserved nectophores and one type of its bracts. The taxonomic status of the species is discussed. In addition much material has been identified from the Discovery collections, and the distribution of the species in the North Atlantic Ocean is considered.

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Section: Distributionmentioning

confidence: 96%

“…Nonetheless, there were no such similarities amongst the nectophores. Mackie et al (1987) also noted that the bract that Totton (1965, fig. 61) had illustrated under the heading Forskalia cuneata Chun, 1888 most probably belonged to F. vityazi; again establishing the apparent link with the family Forskaliidae.…”

Section: Frillagalma Vityazimentioning

confidence: 98%

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Pugh¹

1998

Sci. Mar.

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“…The majority of siphonophores are extremely fragile breaking into many pieces under the slightest of forces, thus restricting their distribution to oceanic environments where they do not come into contact with coastal hazards (currents, waves and hard substrates). There are some exceptions to this rule, for example Muggiaea atlantica (Cunningham, 1892) (and its 3 sibling species) are described as neritic, and are confined almost exclusively to near shore waters (MACKIE et al, 1987).…”

Section: Siphonophoresmentioning

confidence: 99%

“…Through a combination of active swimming and perhaps some buoyancy control, many siphonophores are capable of diel vertical migration, especially many epipelagic species (MACKIE et al, 1987). Therefore, although siphonophores are certainly consumed by leatherbacks (DAVENPORT & BALAZS, 1991), at times they may be too deep to be accessible to leatherbacks.…”

Section: Siphonophoresmentioning

confidence: 99%

A leatherback tuttle’s guide to jellyfish in the North East Atlantic

Doyle¹,

Georges²,

Houghton³

2013

Munibe Monogr., nat. ser.

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Leatherback Dermochelys coriacea (Vandelli, 1761) sea turtles, are known to roam across entire oceans in search of high densities of their jellyfish food. Although this predator-prey relationship is well established, considerations of leatherback foraging behaviours are often hampered by a lack of information on the prey available to them in different regions. Therefore, to provide an overview for future studies we synthesise our current knowledge of jellyfish distributions and seasonality throughout the Northeast Atlantic and highlight known hotspots for the turtles themselves.KEY WORDS: Dermochelys, gelatinous zooplankton, medusae, Rhizostoma, La Rochelle, Pelagia and salps. RESUMENLas tortugas laúd Dermochelys coriacea (Vandelli, 1761), se conocen por recorrer océanos enteros, en busca de aprovisionamiento o alimento en zonas con grandes cantidades de zooplancton gelatinoso. Aunque la relación depredador-presa es bien conocida, el comportamiento de esta especie en relación a su alimentación es incompleta, debido a la falta de datos existentes en relación a la disponibilidad que existe de sus presas en las distintas regiones. Para proporcionar una visión general de la información relevante en este ámbito, hemos resumido el conocimiento que se tiene del zooplancton gelatinoso, su distribución y estacionalidad a lo largo del Noreste Atlántico y hemos querido resaltar puntos o zonas de especial importancia para las tortugas. PALABRAS CLAVES:Dermochelys, zooplancton gelatinoso, medusae, Rhizostoma, La Rochelle, Pelagia y salpas. LABURPENALarruzko dortokak Dermochelys coriacea (Vandelli, 1761), ozeanoetan barrena elikatzeko plankton lirdingatsuan aberats diren guneen bila ibiltzeagatik dira ezagunak. Naiz eta harrapakari-harrapakin harremana aski ezaguna izan, bere elikatzeko portaerak utsune handiak ditu oraindik, bere harrapakinen inguruko informazio ezagatik. Gai honekiko ikuspegi zabal bat ematearren, gaur egun zooplankton lirdingatsuaren inguruan dugun informazio esanguratsua laburbildu dugu artikulu honetan, Atlantiko Iparekialdean duen distribuzio eta urtaroaren arabeherako aldaketak eta bereziki itsas dortokentzat garrantzitsuak diren guneak azpimarratu nahi izan ditugu. KITAMURA, 2004). Some jellyfish (siphonophores) have been described as some of the longest animals on the planet measuring 20 metres long , in Bone 1998. This diversity of species is found in all oceans, from surface waters to the aphotic depths, with some eking out an unusual existence lying on the seafloor. GAKO-HITZAKThe manner in which jellyfish aggregate also varies markedly between species. Many form spectacular aggregations with many millions of individuals closely grouped, whereas other species are widely dispersed at much lower densities (GRAHAM et al., 2001). Taking this to the extreme, some animals which appear as individuals are in fact colonies such as the Portuguese Man-o-War Physalia physalis (Linnaeus, 1758) and Pyrosoma atlanticum (Péron, 1804) whilst other species can occur in both singular and colonial forms (e.g...

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“…Siphonophores are complex colonial pelagic hydrozoans, most well known for their long gelatinous colonies that can exceed 30 m in length (Mackie et al, 1987;Robison, 2004). Over 60% of known siphonophore species, however, are small rocket-shaped colonies that rarely exceed 20 cm in total length.…”

Section: Introductionmentioning

confidence: 99%

Description of the eudoxid stages ofLensia havockandLensia leloupi(Cnidaria: Siphonophora: Calycophorae), with a review of all knownLensiaeudoxid bracts

Grossmann

Collins

Lindsay

2014

Systematics and Biodiversity

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The majority of calycophoran siphonophores release cormidia from the end of the polygastric colony to form a free-living sexual unit, called the eudoxid stage. Despite having a very different morphology from that of the polygastric colony, nearly all calycophoran species have had their eudoxid stages described, through a combination of morphological and distributional similarities with the polygastric stages. However, in the catch-all genus Lensia, less than half of the small, rocket-shaped polygastric stages have had eudoxid stages assigned to them. In this work, DNA barcoding of the mitochondrial 16S gene allowed two new Lensia eudoxid stages to be reliably linked with their polygastric stages: L. havock and L. leloupi. A re-examination of the latter species has indicated that L. nagabhushanami is a junior synonym. A review of all known Lensia eudoxid bracts is given, with some notes on five as-yet unassigned eudoxid stages.http//zoobank.org/urn:lsid:zoobank.org:pub:0C7F3376-B07C-481D-8F2F-367E2B7152CC

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Siphonophore Biology

Cited by 138 publications

References 119 publications

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A leatherback tuttle’s guide to jellyfish in the North East Atlantic

Description of the eudoxid stages ofLensia havockandLensia leloupi(Cnidaria: Siphonophora: Calycophorae), with a review of all knownLensiaeudoxid bracts

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