Assessment of storage lipid accumulation patterns in eucalanoid copepods from the eastern tropical Pacific Ocean

Cass, Christine J.; Daly, Kendra L.; Wakeham, Stuart G.

doi:10.1016/j.dsr.2014.08.001

Cited by 14 publications

(11 citation statements)

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“…While LIP were significantly positively related to fraction size (Table 1), IC concentrations were significantly related to the abundance of organisms (r = 0.55, p = 0.034, n = 62) for fractions between 200 µm and 2000 µm, mainly composed of copepods (Table 3). The similar mean concentration of proteins among stations (Table 5) could reflect the fact that proteins are the main structural component in zooplankton growth (Carlotti et al 1993), which fluctuates less than non-structural components, such as some lipid classes linked to energy storage (Falk-Petersen et al 1999;Hagen and Auel 2001;Cass et al 2014). Variation in biochemical component concentrations among stations reflected the patchiness in composition and population response of zooplankton communities to the spring bloom, as stations were sampled at different dates and bloom conditions.…”

Section: Variations Of Biochemical Composition Among Stationsmentioning

confidence: 95%

“…Donnelly et al 1994;Falk-Petersen et al 1999), and lower percentages in tropical zones (e.g. Arun Kumar et al 2013; but see Cass et al 2014 andLee et al 2006 for a review). However, the biochemical composition of zooplankton varies largely with species, size, ontogenic stage, site and season.…”

Section: Figmentioning

confidence: 99%

“…Percy and Fife 1981;Donnelly et al 1994;Mayzaud et al 2011). An increase in both lipid and energy content of zooplankton as the season progresses, reflecting an increase in feeding at all trophic levels, is observed in all organisms, but modulated by species physiology (Lee et al 2006;Kattner et al 2007;Cass et al 2014). Lipid storage is particularly important in herbivorous copepods experiencing winter diapause in deep waters such as Rhincalanus gigas (Ward et al 1996;Hagen and Auel 2001;Lee et al 2006), which was the most abundant copepod species in the largest plankton size fraction in Kerguelen waters (> 75% in number) (Carlotti et al 2015).…”

Section: Variations Of Biochemical Composition Among Stationsmentioning

confidence: 99%

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Biochemical composition and energy content of size-fractionated zooplankton east of the Kerguelen Islands

et al. 2019

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Food quality is recognized as a key parameter of food web functioning in which zooplankton plays a crucial role not only in linking lower to upper trophic levels but also in transforming the quality of the organic matter available to predators. The influence of size and taxonomic group composition of zooplankton in these processes was assessed in eastern Kerguelen waters (Southern Ocean) at the onset of the spring bloom in 2011. Biochemical (lipids, proteins and carbohydrates) and elemental (carbon and nitrogen) composition were measured in five size-fractions of bulk zooplankton ranging from 80 µm to > 2000 µm and in large copepods, euphausiids, annelids and salps, and energy content was derived from biochemical contents. Proteins were the dominant component of zooplankton dry weight (21.5% dw), followed by lipids (8.9% dw), soluble carbohydrates (2.2% dw) and insoluble carbohydrates (1.0% dw). A concentration increase with zooplankton size for all biochemical components was observed, particularly stronger for proteins and lipids. Copepods and salps provided, respectively, the highest and the lowest amount of lipids and energy.

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Section: Variations Of Biochemical Composition Among Stationsmentioning

confidence: 95%

Section: Figmentioning

confidence: 99%

Section: Variations Of Biochemical Composition Among Stationsmentioning

confidence: 99%

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Biochemical composition and energy content of size-fractionated zooplankton east of the Kerguelen Islands

et al. 2019

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“…Copepods are rich in lipids (e.g. [ 71 ]) and can be an important source of TAG [ 72 ]. In fact, cultured copepods have been successfully used in the larviculture of various marine fish larvae, although the upscale of copepod cultures to commercial levels is still a challenge [ 73 ].…”

Section: Discussionmentioning

confidence: 99%

Towards Integrated Multi-Trophic Aquaculture: Lessons from Caprellids (Crustacea: Amphipoda)

et al. 2016

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The search for alternative live feed organisms and the progression of Integrative Multi-Trophic Aquaculture (IMTA) are currently being highly prioritised in EU strategies. Caprellids could potentially be an important exploitable resource in aquaculture due to their high levels of beneficial polyunsaturated fatty acids, fast growing nature and widespread distribution. Furthermore, since they are mainly detritivorous, they could be excellent candidates for integration into IMTA systems, potentially benefitting from uneaten feed pellets and faeces released by cultured fish in fish farms and sea-cage structures. Despite this, there is a lack of experimental studies to: (i) test inexpensive diets for caprellids, such as detritus, (ii) develop sustainable caprellid culture techniques and (iii) include caprellids in IMTA systems. The main aim of this study was to determine whether detritus (D) in the form of fish faeces provided an adequate diet for caprellids in comparison to other traditional diets, such as Artemia nauplii (A) or phytoplankton (P). Adult survival rate was shown to be significantly higher for caprellids fed with D. Conversely, hatchlings had the highest survival rate with A, although the juvenile growth rate and number of moults was similar in the three diets. With regard to lipid composition, caprellids fed with A had higher concentrations of Triacylglycerols (TAG) and Phosphatidylcholine (PC) while those fed with P or D were richer in polyunsaturated fatty acids, especially 22:6(n-3) (DHA). Interestingly, caprellids fed with D were also a rich source of 18:2(n-6) (LA), considered to be an essential fatty acid in vertebrates. It was found that detritus based mainly on fish faeces and uneaten feed pellets can be considered an adequate feed for adult caprellids, providing a source of both omega-3 (DHA) and omega-6 (LA) fatty acids. Hatchlings however seem to require an additional input of TAG and PC during juvenile stages to properly grow.

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“…Measurements were conducted using an Isotope Ratio Mass Spectrometer (Delta V Thermo Finnigan; Thermo, Waltham, USA) in the Akdeniz University Food Safety and Agricultural Research Center. Since acidification can affect nitrogen and carbon isotope values, the samples were not acidified [36][37][38][39][40][41]. The obtained results are expressed by δ using the following equation:…”

Section: Zooplankton Sampling For Stable Isotope Analyses (Sia)mentioning

confidence: 99%

Stable isotope compositions of dominant zooplankton species in relation to environmental factors in the Dardanelles

Uzundumlu

Büyükateş

2019

ARCH BIOL SCI BELGRA

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Samples were collected seasonally from three stations in the Dardanelles between April 2016 and October 2017 to determine the effects of biological and physicochemical properties of the coastal system on the isotopic compositions of the most abundant copepod species, Acartia clausi and Calanus helgolandicus, and a cladoceran, Penilia avirostris. Plankton samples were collected horizontally with a 200-µm-mesh plankton net and isotopic analyses were performed by mass spectrometry after identification to species level. Total zooplankton abundance reached its maximum in spring and summer. The δ 13 C values of copepods showed statistically significant differences both between stations and seasons. As a selective feeder, C. helgolandicus had the highest values in both δ 13 C and δ 15 N. Being a filter feeder, P. avirostris distinctly differed from C. helgolandicus and A. clausi. Enrichment was observed in δ 15 N values of copepods in winter, when the highest values of total suspended solids and chlorophyll-a were determined. The results showed that δ 13 C values of the copepods were under the influence of environmental and biological factors. Additionally, dietary differences between herbivorous groups and other groups were clearly demonstrated, as well as differences in the diets of filter-feeding and selectively-feeding zooplanktonic species.

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Assessment of storage lipid accumulation patterns in eucalanoid copepods from the eastern tropical Pacific Ocean

Cited by 14 publications

References 64 publications

Biochemical composition and energy content of size-fractionated zooplankton east of the Kerguelen Islands

Biochemical composition and energy content of size-fractionated zooplankton east of the Kerguelen Islands

Towards Integrated Multi-Trophic Aquaculture: Lessons from Caprellids (Crustacea: Amphipoda)

Stable isotope compositions of dominant zooplankton species in relation to environmental factors in the Dardanelles

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