Effects of turbulence on the feeding rate of a pelagic predator: The planktonic hydroid Clytia gracilis

Adamík, Peter; Gallager, Scott M.; Horgan, Erich; Madin, Laurence P.; McGillis, Wade R.; Govindarajan, Annette F.; Alatalo, Philip

doi:10.1016/j.jembe.2005.12.006

Cited by 4 publications

(5 citation statements)

References 33 publications

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“…nov. and C. viridicans the behaviour of their planulae suggests the important contribution of this life cycle stage to dispersal. While the ecological role of planktonic hydroids in the field is not well understood, they could prey upon young copepods as well as on the eggs and larvae of commercially important fish species (Madin et al , 1996; Adamík et al , 2006), in addition to being a food source for these fish (Avent et al , 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Clytia (Lamouroux, 1812) is the genus within Campanulariidae (Cnidaria, Leptomedusae) with the highest number of species and it is widely distributed throughout the world. Approximately 60 species of Clytia are currently recognized (Bouillon & Boero, 2000; Calder et al , 2003; Schuchert, 2003, 2012; Bouillon et al , 2006; Govindarajan et al , 2006; Lindner et al , 2011), and because they are usually the most abundant hydromedusae, they play an important ecological role in the plankton and shallow-water benthic environments, acting as both competitor and predator (Madin et al , 1996; Avent et al , 2001; Boero et al , 2005; Adamík et al , 2006). Furthermore, the ubiquitous Clytia hemisphaerica (Linnaeus, 1767) has emerged as an important model organism in developmental biology and evolutionary studies (Amiel et al , 2010; Houliston et al , 2010).…”

Section: Introductionmentioning

confidence: 99%

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Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Zhou

Zheng

et al. 2013

J. Mar. Biol. Ass.

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The genus Clytia is distributed worldwide, but most accepted species in this genus have been examined either only at the hydroid or medusa stage. The challenge in identifying Clytia species reflects their complex life cycles and phenotypic plasticity. In this study, molecular and morphological investigations of Clytia specimens from the coastal waters of China revealed an as yet unreported species, designated C. xiamenensis sp. nov., that was considered as conspecific to two nearly cosmopolitan species, C. hemisphaerica and C. gracilis. DNA barcoding based on partial mitochondrial cytochrome c oxidase subunit I (COI) and large subunit ribosomal RNA gene (16S) confirmed the highly distinct lineage of C. xiamenensis sp. nov. These results were corroborated by the detailed observations of its mature medusae and its colonies, which showed that C. xiamenensis sp. nov. was morphologically distinct from other species of Clytia. Thus, based on our findings, the nearly cosmopolitan distribution attributed to some species of Clytia might rather be due to the misidentification, and it is necessary to elucidate their whole life cycle in order to establish the systematic validity of all species within the genus Clytia.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Zhou

Zheng

et al. 2013

J. Mar. Biol. Ass.

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“…However, despite an abundance of laboratory studies showing a strong effect of turbulence when compared to still water (Fig. , Saiz and Kiørboe ; MacKenzie and Kiørboe ; Saiz et al ; Adamík et al ), few studies have measured the effects of turbulence in the field (Saito and Kiørboe ; Visser et al ; Reiss et al ; Maar et al ) and none of these were able to identify a strong effect of turbulence on feeding rates, regardless of feeding strategy. A likely explanation is that predators (and prey) are highly sensitive and responsive to turbulence and that, in most cases, the spatial heterogeneity of turbulence in nature provides areas of refuge from turbulence.…”

Section: Discussionmentioning

confidence: 99%

“…The effects of turbulence on predator-prey interactions have been well studied both experimentally (e.g., Saiz and Kiørboe 1995;MacKenzie and Kiørboe 2000;Saiz et al 2003;Adam ık et al 2006) and theoretically (Rothschild and Osborn 1988;Kiørboe and Saiz 1995;Lewis and Pedley 2001;Mariani et al 2007). However, despite an abundance of laboratory studies showing a strong effect of turbulence when compared to still water (Fig.…”

Section: General Implications For Studies On Turbulencementioning

confidence: 99%

Resilience in moving water: Effects of turbulence on the predatory impact of the lobate ctenophore Mnemiopsis leidyi

Jaspers

Costello

Sutherland

et al. 2017

Limnology & Oceanography

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Despite its delicate morphology, the lobate ctenophore Mnemiopsis leidyi thrives in coastal ecosystems as an influential zooplankton predator. Coastal ecosystems are often characterized as energetic systems with high levels of natural turbulence in the water column. To understand how natural wind-driven turbulence affects the feeding ecology of M. leidyi, we used a combination of approaches to quantify how naturally and laboratory generated turbulence affects the behavior, feeding processes and feeding impact of M. leidyi. Experiments using laboratory generated turbulence demonstrated that turbulence can reduce M. leidyi feeding rates on copepods and Artemia nauplii by > 50%. However, detailed feeding data from the field, collected during highly variable surface conditions, showed that wind-driven turbulence did not affect the feeding rates or prey selection of M. leidyi. Additional laboratory experiments and field observations suggest that the feeding process of M. leidyi is resilient to wind-driven turbulence because M. leidyi shows a behavioral response to turbulence by moving deeper in the water column. Seeking refuge in deeper waters enables M. leidyi to maintain high feeding rates even under high turbulence conditions generated by wind driven mixing. As a result, M. leidyi exerted a consistently high predatory impact on prey populations during highly variable and often energetic wind-driven mixing conditions. This resilience adds to our understanding of how M. leidyi can thrive in a wide spectrum of environments around the world. The limits to this resilience also set boundaries to its range expansion into novel areas.

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“…Long-term surveys in this region indicate that these colonies are not ephemeral, and that they comprise perennial components of the planktonic community (Concelman et al , 2001). They are prey items of carnivorous fishes, as well as being their competitors (Avent et al , 2001), and they can be important predators of fish eggs and larvae (Madin et al , 1996; Adamík et al , 2006; Ohman et al , 2008).…”

Section: Introductionmentioning

confidence: 99%

Are free-floating planktonic hydroids (Cnidaria, Hydrozoa) common components of the pelagic fauna from the South Brazilian Bight?

et al. 2015

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We analysed 267 zooplankton samples collected in the South Brazilian Bight (SBB; 23–27°S) to determine whether hydroids, typically benthic, are common components of the pelagic SBB. Two species, Clytia arborescens, recorded for the first time in the Atlantic Ocean, and Clytia sp. were identified. While these planktonic hydroids were frequent or relatively so in shallow shelf waters (~23% of the samples <50 m isobaths, and 5% of the samples >100 m), abundances were low (up to 61 hydranths m−3) suggesting a low trophic impact. Such colonies are probably fragments of benthic colonies detached by storms and/or tides. Given the good condition of the coenosarc, existence of gastric content, and presence of reproductive structures, development of these species appears to be normal in the pelagic environment. Existence in the plankton may increase their capacity for dispersion.

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Effects of turbulence on the feeding rate of a pelagic predator: The planktonic hydroid Clytia gracilis

Cited by 4 publications

References 33 publications

Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Resilience in moving water: Effects of turbulence on the predatory impact of the lobate ctenophore Mnemiopsis leidyi

Are free-floating planktonic hydroids (Cnidaria, Hydrozoa) common components of the pelagic fauna from the South Brazilian Bight?

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