Generation time, length of life, instar duration and frequency of moulting, and their relationship to temperature in eight species of cladocera from the River Thames, reading

Bottrell, Howard H.

doi:10.1007/bf00369097

Cited by 105 publications

(69 citation statements)

References 17 publications

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“…Embryonic development in some crustaceans is highly dependent on water temperature (Bottrell, 1975;Herzig, 1983). In the present study, the crayfish P. acanthophorus embryos developed at an average temperature of 23.8 ± 2.2 °C during January-March.…”

Section: In C Destructor and García-guerrero Et Al (2003) In C Qumentioning

confidence: 59%

Advances in Domestication and Culture Techniques for Crayfish Procambarus acanthophorus

Hernández‐Vergara¹,

Pérez‐Rostro²

2012

Aquaculture

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Section: In C Destructor and García-guerrero Et Al (2003) In C Qumentioning

confidence: 59%

Advances in Domestication and Culture Techniques for Crayfish Procambarus acanthophorus

Hernández‐Vergara¹,

Pérez‐Rostro²

2012

Aquaculture

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“…Considering that moulting is not synchronised in the population, an increasing chitin level in our samples reflects an increase of the proportion of animals that are in a moulting stage. As the moulting frequency is closely related to temperature (Bottrell 1975), this may explain why a positive correlation was found between chitin level in Daphnia magna and temperature.…”

Section: Discussionmentioning

confidence: 97%

Analysis of the seasonal variation in biochemical composition ofDaphnia magnaStraus (Crustacea : Branchiopoda : Anomopoda) from an aerated wastewater stabilisation pond

Cauchie

Jaspar-Versali

Hoffmann

et al. 1999

Ann. Limnol. - Int. J. Lim.

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The biochemical composition of Daphnia magna Straus, the dominant planktonic crustacean of the waste stabilisation pond of Differdange (Grand-Duchy of Luxembourg), was quantitatively determined from October 1993 to July 1994. Over the sampling period, the average composition (mean ± S.D.) was 271 ± 64 mg proteins.g -1 dry weight (DW), 100 ± 28 mg lipids.g -1 (DW), 96 ± 58 fig carotenoids.g-1 (DW), 49 ± 14 mg chitin.g" 1 (DW) and 125 ± 78 mg ash.g" 1 (DW). The seasonal variations of the biochemical composition were related to several ecological variables (water temperature, dissolved oxygen concentration, pH, water transparency, chlorophyll a concentration and D. magna biomass). The chitin content was positively correlated to the water temperature as a result of the strong influence of this later variable on the moulting rate of the daphnids and, subsequently, on the chitin synthesis by these organisms. The carotenoid content was positively correlated to the water transparency as a result of their photoprotective role in daphnids. The fluctuations of the lipid, protein and ash levels in D. magna depended to the food availability. Despite a seasonal variation in the biochemical composition, D. magna appeared to have adequate lipid and protein levels to be used in aquaculture. Its carotenoid content is similar to fish meals used to color salmonid flesh and these organisms could be used for this purpose. The prospect of using D. magna for chitin extraction is worth considering with respect to its significant chitin content, especially if highly valuable applications are aimed.Analyse de la variation saisonnière de la composition biochimique de Daphnia magna Straus (Crustacea : Branchiopoda : Anomopoda) vivant dans un étang de lagunage aéré Mots-clés : Daphnia magna, lipides, protéines, caroténoïdes, chitine, composition biochimique, étang de lagunage, aquaculture. La composition biochimique de Daphnia magna Straus, le crustacé planctonique dominant dans l'étang de lagunage de Differdange (Grand-Duché de Luxembourg), a été déterminée quantitativement d'octobre 1993 à juillet 1994. Pendant cette période, la composition moyenne a été caractérisée par des teneurs s'élevant à (moyenne ± écart-type) 271 ± 64 mg protéines.g" 1 masse sèche (MS), 100 ± 28 mg lipids.g" 1 (MS), 96 ± 58 ug caroténoïdes.g" 1 (MS), 49 ± 14 mg chitine.g" 1 (MS) and 125 ± 78 mg cendres.g-1 (MS). Les variations saisonnières de la composition chimique des daphnies ont été mises en relation avec plusieurs variables écologiques (température de l'eau, concentration en oxygène dissous, pH, transparence de l'eau, concentration en chlorophylle a et biomasse de D. magna). La teneur en chitine s'est avérée positivement corrélée à la température de l'eau en raison de l'influence marquée de celle-ci sur le rythme de mue des daphnies et, par conséquent, sur la synthèse de chitine chez ces organismes. Le contenu en caroténoïdes s'est révélé positivement corrélé à la transparence de l'eau en raison du rôle de photoprotection de ces pigments. Les fluctuations des ...

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“…It is well-known that the duration of the embryonic development in the Cladocera depends strongly on the temperature (Bottrell, 1975a(Bottrell, , 1975b. For example, Bottrell observed an embryonic development of 76 h for A. harpae under 20°C, while Melão (1999) found that the development is about twice as fast (37 h) for the same species -though for a population from a different regionunder 25°C.…”

Section: Discussionmentioning

confidence: 99%

“…An approximate sequence of embryonic stages was superficially described only for a single chydorid species, Leydigia acanthocercoides (Leydig, 1860) (Murugan and Job, 1982) and for the closest relative of (Kotov, 1996) Bottrell (1975aBottrell ( , 1975b, Melão (1997Melão ( , 1999 and their own observations. From our data, we can say that the general patterns of the sequence of events in chydorid embryogenesis is similar to that in other anomopods, such as the daphniids Daphnia magna (Obreshkove and Frazer, 1940), D. hyalina and D. galeata (Kotov and Boikova, 2001), and Ceriodaphnia reticulata (Shuba and De Costa, 1972).…”

Section: Discussionmentioning

confidence: 99%

Study of the embryogenesis of Dunhevedia crassa King, 1853 (Cladocera: Chydoridae) and a comparison of embryonic instar durations in different cladocerans

et al. 2013

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Generation time, length of life, instar duration and frequency of moulting, and their relationship to temperature in eight species of cladocera from the River Thames, reading

Cited by 105 publications

References 17 publications

Advances in Domestication and Culture Techniques for Crayfish Procambarus acanthophorus

Advances in Domestication and Culture Techniques for Crayfish Procambarus acanthophorus

Analysis of the seasonal variation in biochemical composition ofDaphnia magnaStraus (Crustacea : Branchiopoda : Anomopoda) from an aerated wastewater stabilisation pond

Study of the embryogenesis of Dunhevedia crassa King, 1853 (Cladocera: Chydoridae) and a comparison of embryonic instar durations in different cladocerans

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