Influence of short-term nutritional variations on digestive enzyme and fatty acid patterns of the calanoid copepod Temora longicornis

Kreibich, Tobias; Saborowski, Reinhard; Hagen, Wilhelm; Niehoff, Barbara

doi:10.1016/j.jembe.2011.06.013

Cited by 19 publications

(10 citation statements)

References 54 publications

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“…However, there was a significant difference between copepods fed fresh N. oculata and fresh T. lutea. A previous study reported that the difference of enzymatic responses in copepods depends on the nutritional quality of algae (Kreibich, Saborowski, Hagen & Niehoff 2011), which is consistent with our results. For instance, in this study the dry Melosira sp.…”

Section: Discussionsupporting

confidence: 94%

Effects of dietary microalgae on fatty acids and digestive enzymes in copepodCyclopina kasignete, a potential live food for fish larvae

Rasdi

Qin

2015

Aquac Res

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The copepod Cyclopina kasignete is a potential live food in aquaculture and its fatty acid components and digestive enzymes were investigated. Three dry algal products (mixed algae, Melosira sp. and Nannochloropsis oculata) and two fresh microalgae (Tisochrysis lutea and N. oculata) were fed to the copepod for 30 days. The essential fatty acids (EFA) in copepods were altered by feeding different types of dry algae. The copepod fed dry Melosira sp. or fresh T. lutea contained higher eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and arachidonic acid (ARA), protease and trypsin than fed on other algae. The copepod contained a similar fatty acid profile and digestive enzymes by feeding either dry or fresh N. oculata. Between fresh algal species, the copepod fed T. lutea contained higher EPA, DHA and ARA than that fed fresh N. oculata. The amounts of EPA and DHA in copepods were more concentrated than those in the dietary algae, suggesting that the copepod has the ability to accumulate some EFA. This study indicates that dietary algae can modify the nutritional composition and in digestive enzymes copepods, which in turn may be able to transfer suitable nutrients and digestive enzymes to fish larvae in aquaculture.

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Section: Discussionsupporting

confidence: 94%

Effects of dietary microalgae on fatty acids and digestive enzymes in copepodCyclopina kasignete, a potential live food for fish larvae

Rasdi

Qin

2015

Aquac Res

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“…It is possible that also in our experiments, the females utilized both internal and dietary FA sources, as the relative amounts of 20:5(n-3) always decreased (Table 3), despite high levels of this PUFA in the diet. Independent of the level of lipid accumulation, the FA patterns of the copepods after 3 days always reflected the FA compositions of the different algal species confirming that FA turnover is rapid in female T. longicornis (Kreibich et al, 2011).…”

Section: Discussionmentioning

confidence: 63%

“…This was not the case, which could suggest that the differences in proteolytic responses to the experimental conditions could have been due to different metabolic requirements of the two female cohorts (Mayzaud, 1986;Roche-Mayzaud et al, 1991). It should be mentioned that proteinase activities changed significantly within only 24 h in all four experimental groups of T. longicornis females, indicating that the digestive system responded immediately to the new dietary conditions (Kreibich et al, 2008(Kreibich et al, , 2011.…”

Section: Discussionmentioning

confidence: 92%

Feeding history can influence physiological responses of copepods: an experimental study comparing different cohorts of Temora longicornis from the Southern North Sea

Niehoff

Kreibich

Saborowski

et al. 2015

Journal of Experimental Marine Biology and Ecology

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“…Recent studies show that the composition in a set of digestive enzymes excreted by copepods changes rapidly depending on algal species ingested (Kreibich et al . ), suggesting that mixtures of algal species can strengthen overall digestion of algal food when compared to feeding on mono‐specific algal food. Similar to the present result, Toi et al .…”

Section: Discussionmentioning

confidence: 99%

Understanding the stoichiometric limitation of herbivore growth: the importance of feeding and assimilation flexibilities

2017

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Ecological stoichiometry suggests that herbivore growth is limited by phosphorus when this element in the diet is < 8.6 μg P mg C (C : P atomic ratio > 300). However, in nature, it is not necessarily related to the relative phosphorus content in diets. This may be the result of complex feeding and assimilation responses to diets. We examined these possibilities using herbivorous plankton fed mono-specific and mixed algae varying in phosphorus content of 1.6 to 8.1 μg P mg C . The herbivores showed a 10-fold growth rate difference among the diets. Growth rates related poorly with phosphorus content in the diets (r = 0.07), better with P ingestion rate (r = 0.41) and best with phosphorus assimilation rate (r = 0.69). Inclusion of assimilation rates for carbon and fatty acids increased 7% of the explained growth variance. These results indicate that the feeding and assimilation flexibilities play pivotal roles in acquiring a deficient element and in regulating growth rate.

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Influence of short-term nutritional variations on digestive enzyme and fatty acid patterns of the calanoid copepod Temora longicornis

Cited by 19 publications

References 54 publications

Effects of dietary microalgae on fatty acids and digestive enzymes in copepodCyclopina kasignete, a potential live food for fish larvae

Effects of dietary microalgae on fatty acids and digestive enzymes in copepodCyclopina kasignete, a potential live food for fish larvae

Feeding history can influence physiological responses of copepods: an experimental study comparing different cohorts of Temora longicornis from the Southern North Sea

Understanding the stoichiometric limitation of herbivore growth: the importance of feeding and assimilation flexibilities

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