Predatory feeding behavior of the marine cyclopoid copepod Corycaeus anglicus

Landry, Michael R.; Lehner-Fournier, J.M.; Fagerness, V.

doi:10.1007/bf00397435

Cited by 59 publications

(18 citation statements)

References 29 publications

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“…4). This result seems inconsistent with previous reports that the Corycaeus genus is carnivorous (Gophen and Harris, 1981;Landry et al, 1985;Turner, 1986).…”

contrasting

confidence: 99%

Variability in copepod trophic levels and in feeding selectivity based on stable isotope analysis in Gwangyang Bay off the southern coast of Korea

Chen

Kim

Liu

et al. 2017

Preprint

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Abstract. Trophism (i.e., food resources and trophic levels) of different copepod groups was assessed along a salinity gradient in the temperate estuarine Gwangyang Bay of Korea, based on seasonal investigation of taxonomic results in 2015 and stable isotope analysis incorporating multiple linear regression models. The Acartia preferred large particles, Paracalanus and Pseudodiaptomus apparently preferred small particles, and Corycaeus was typically omnivorous with low selectivity on particle size. In addition, the carnivorous genus Tortanus predated on copepods without apparent selectivity, Labidocera preferred Acartia to Paracalanus, and Sinocalanus preferred Paracalanus to Acartia and cyclopoids. Overall, our results depict a simple energy flow of the planktonic food web of Gwangyang Bay: 25 from primary producers (nanoplankton) and a mixture of primary producers and herbivores (microplankton), through omnivores (Acartia, Paracalanus, and Corycaeus) and detrivores (Pseudodiaptomus and Euterpina) to carnivores (Tortanus, Labidocera, and Sinocalanus).

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“…4). This result seems inconsistent with previous reports that the Corycaeus genus is carnivorous (Gophen and Harris, 1981;Landry et al, 1985;Turner, 1986).…”

contrasting

confidence: 99%

Variability in copepod trophic levels and in feeding selectivity based on stable isotope analysis in Gwangyang Bay off the southern coast of Korea

Chen

Kim

Liu

et al. 2017

Preprint

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“…The contribution of Oncaea to the diet decreased with increasing body length while the contribution of Corycaeidae increased. δ 15 N increased with body length, indicating increasing trophic level while growing as they fed less on omnivorous Oncaea (Wu et al, 2004) and more on the predatory Corycaeidae copepods (Landry et al, 1985;Turner et al, 1984). δ 13 C decreased in 2011, indicating that sprats may exploit food webs influenced by Rhône inputs while growing as δ 13 C is lower in waters influenced by the Rhône plume (Harmelin-Vivien et al, 2008).…”

Section: Diet Composition and Ontogenetic Shiftsmentioning

confidence: 93%

Trophic niche overlap of sprat and commercial small pelagic teleosts in the Gulf of Lions (NW Mediterranean Sea)

Bourg

Bănaru

Saraux

et al. 2015

Journal of Sea Research

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This study was funded by the programmes PERSEUS FP7 EU project, EMIBIOS FRB, IPP WP2-MERMEX and EcoPelGol FFP.Increasing abundance of non-commercial sprats and decreasing biomass and landings of commercial anchovies and sardines justify the need to study the feeding ecology and trophic niche overlap of these planktivorous species in the Gulf of Lions. Their diet has been investigated on the basis of stomach content and stable isotope analyses in 2011 and 2012 according to different depths and regions in the study area. The main prey were Corycaeidae copepods, Clauso/Paracalanus, Euterpina acutifrons and Microsetella, for sprats and small copepods, such as Microsetella, Oncaea and Corycaeidae, for anchovies and sardines. This is the first time that the diet of sprats is described in the Gulf of Lions. Sprats fed on a larger size spectrum of prey and seem to be more generalist feeders compared to anchovies and sardines. Ontogenetic changes as well as spatial and temporal variations of the diet occurred in the three species. Stable isotope analysis revealed mobility of sardines and sprats among feeding areas while anchovies exhibited preferred feeding areas. Sprats showed a higher relative condition assessed by C/N ratios than sardines and anchovies. Our results showed an overlap of the trophic niches for the three species, indicating a potential trophic competition in the Gulf of Lions. (C) 2015 Elsevier B.V. All rights reserved

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“…), which prey on motile zooplankton (Marazzo et al 1997;Saito & Kiorboe 2001), were abundant in the inner gulf in early and late spring when cladocera, calanoid nauplii (Hall et al 2006), copepodites and small adult copepods were plentiful. Also common in summer was the predatory C. aucklandicus, which preys on small copepods (Landry et al 1985) such as E. acutifrons and Paracalanus sp., which were abundant at that time. Oikopleura sp.…”

Section: Season Regionmentioning

confidence: 99%

Biogeographic and trophic drivers of mesozooplankton distribution on the northeast continental shelf and in Hauraki Gulf, New Zealand

Zeldis

Willis²

2014

New Zealand Journal of Marine and Freshwater Research

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The northeast continental shelf of New Zealand and adjacent Hauraki Gulf were surveyed from early spring to late summer, to identify biogeographic and trophic factors influencing mesozooplankton community distribution and abundance. The outer shelf supported low-abundance oceanic species associated with the East Auckland Current which were also transported to the inner shelf during upwelling. Outer gulf sites, where gulf and shelf waters converged, supported a characteristic frontal assemblage. The inner gulf supported an abundant and diverse neritic community, with greater seasonal variability than offshore. Over spring to summer, succession of mesozooplankton taxa reflected an ecosystem shift from net autotrophic to heterotrophic states. These biogeographic and trophic effects defined the grazing impact mesozooplankton had on lower trophic levels, with grazing often matching primary production in spring and early summer. Greater mesozooplankton abundances in the gulf were supported by higher volume-specific primary productivity than on the shelf. The results have important implications for higher trophic levels, including larval fish survival, adult fish distributions and whale feeding.

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Predatory feeding behavior of the marine cyclopoid copepod Corycaeus anglicus

Cited by 59 publications

References 29 publications

Variability in copepod trophic levels and in feeding selectivity based on stable isotope analysis in Gwangyang Bay off the southern coast of Korea

Variability in copepod trophic levels and in feeding selectivity based on stable isotope analysis in Gwangyang Bay off the southern coast of Korea

Trophic niche overlap of sprat and commercial small pelagic teleosts in the Gulf of Lions (NW Mediterranean Sea)

Biogeographic and trophic drivers of mesozooplankton distribution on the northeast continental shelf and in Hauraki Gulf, New Zealand

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