Hydromedusa blooms and upwelling events in the Bay of Panama, Tropical East Pacific

Miglietta, Maria Pia; Rossi, Marco; Collin, Rachel

doi:10.1093/plankt/fbn038

Cited by 56 publications

(29 citation statements)

References 26 publications

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“…This study demonstrates that in the Northern California Current, large medusae had a similar response to the PDO as other marine organisms: cool years corresponded with periods of high productivity. A similar pattern has also been demonstrated or suggested for medusae in coastal upwelling areas in other regions of the world (e.g., Buecher & Gibbons, 2000;Miglietta et al, 2008;Quiñones et al, 2010). These results in upwelling systems are important in the context of global jellyfish populations because they run counter to the prevailing trend for temperate species that warm temperatures lead to increased numbers.…”

Section: Discussionsupporting

confidence: 79%

Large medusae in surface waters of the Northern California Current: variability in relation to environmental conditions

et al. 2012

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Section: Discussionsupporting

confidence: 79%

Large medusae in surface waters of the Northern California Current: variability in relation to environmental conditions

et al. 2012

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“…Similarly, reductions in the number of planktonic cnidarian species and abundance have been reported during upwelling or stratified situations elsewhere (Gili et al, 1987;Gasca and Suárez, 1991;Pagès and Gili, 1992). However, Miglietta et al (2008) found higher densities of medusae in upwelling than in non-upwelling periods off Panama Bay. The SACW intrusion particularly affected the distribution and abundance of coastal species; for instance, L. tetraphylla, actinula larvae, M. kochi, C. gracilis, and Rhopalonematidae sp.…”

Section: Discussionmentioning

confidence: 75%

Distribution of planktonic cnidarians in response to South Atlantic Central Water intrusion in the South Brazilian Bight

Júnior

Brandini

Codina

2014

Continental Shelf Research

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“…The large size and high clearance rates of medusae in combination with their low carbon content theoretically enables medusae to survive at lower prey concentrations than other zooplankton [2] but dense populations of medusae are usually only sustained when productivity is high (e.g. [46]), presumably because growth rates are rapid. The paucity of lipid reserves in the bodies of medusae means that individuals quickly shrink when deprived of food [47].…”

Section: Discussionmentioning

confidence: 99%

Jellyfish Body Plans Provide Allometric Advantages beyond Low Carbon Content

et al. 2013

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Jellyfish form spectacular blooms throughout the world’s oceans. Jellyfish body plans are characterised by high water and low carbon contents which enables them to grow much larger than non-gelatinous animals of equivalent carbon content and to deviate from non-gelatinous pelagic animals when incorporated into allometric relationships. Jellyfish have, however, been argued to conform to allometric relationships when carbon content is used as the metric for comparison. Here we test the hypothesis that differences in allometric relationships for several key functional parameters remain for jellyfish even after their body sizes are scaled to their carbon content. Data on carbon and nitrogen contents, rates of respiration, excretion, growth, longevity and swimming velocity of jellyfish and other pelagic animals were assembled. Allometric relationships between each variable and the equivalent spherical diameters of jellyfish and other pelagic animals were compared before and after sizes of jellyfish were standardised for their carbon content. Before standardisation, the slopes of the allometric relationships for respiration, excretion and growth were the same for jellyfish and other pelagic taxa but the intercepts differed. After standardisation, slopes and intercepts for respiration were similar but excretion rates of jellyfish were 10× slower, and growth rates 2× faster than those of other pelagic animals. Longevity of jellyfish was independent of size. The slope of the allometric relationship of swimming velocity of jellyfish differed from that of other pelagic animals but because they are larger jellyfish operate at Reynolds numbers approximately 10× greater than those of other pelagic animals of comparable carbon content. We conclude that low carbon and high water contents alone do not explain the differences in the intercepts or slopes of the allometric relationships of jellyfish and other pelagic animals and that the evolutionary longevity of jellyfish and their propensity to form blooms is facilitated by their unique body plans.

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Hydromedusa blooms and upwelling events in the Bay of Panama, Tropical East Pacific

Cited by 56 publications

References 26 publications

Large medusae in surface waters of the Northern California Current: variability in relation to environmental conditions

Large medusae in surface waters of the Northern California Current: variability in relation to environmental conditions

Distribution of planktonic cnidarians in response to South Atlantic Central Water intrusion in the South Brazilian Bight

Jellyfish Body Plans Provide Allometric Advantages beyond Low Carbon Content

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