Food limitation in naupliar and adult <i>Diaptomus pallidus</i>1

Williamson, Craig E.; Butler, Nancy M.; Forcina, Lorraine

doi:10.4319/lo.1985.30.6.1283

Cited by 32 publications

(14 citation statements)

References 28 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Paffenhöfer & Lewis (1989) report a higher stage‐specific mortality for calanoid nauplii than for copepodites and adults, thereby emphasizing the importance of food supply for the early developmental stages. A higher sensitivity to food limitation for nauplii than for older copepodites is also reported by other authors ( Williamson, Butler & Forcina, 1985; Soto & Hurlbert, 1991; Hart & Santer, 1994; Santer, 1994). Therefore, food supply during juvenile development might have a strong impact on the population dynamics of Eudiaptomus .…”

Section: Introductionsupporting

confidence: 85%

Food quality for Eudiaptomus gracilis: the importance of particular highly unsaturated fatty acids

Elert

Stampfl

2000

Freshwater Biology

View full text Add to dashboard Cite

1. Development times and survival of nauplii and copepodites of the freshwater calanoid Eudiaptomus gracilis were measured on comparably sized Cryptomonas sp. and two strains of Chlamydomonasreinhardii under food saturated conditions (1 mg C L−1) to investigate the nutritional quality of these algae.  2. Cryptomonas sp. supported complete ontogenesis of nauplii to adults, whereas both strains of C. reinhardii were inadequate for the development of nauplii and copepodites and resulted in high mortality. The nutritional deficiency of both strains of C. reinhardii was compensated for by Cryptomonas sp. when the latter constituted ≥50% of dietary carbon. Pulses of Cryptomonas sp. had a similar compensatory effect.  3. In comparison to Cryptomonas sp., both strains of C. reinhardii were deficient in the three highly unsaturated fatty acids (HUFAs) stearidonic, eicosapentaenoic and docosahexaenoic acid. We manipulated the fatty acid content of C. reinhardii by externally adding these three HUFAs to the alga so that the fatty acid profile resembled that of Cryptomonas sp. This supplementation did not improve food quality, however, indicating that the nutritional deficiency of both strains of C. reinhardii for the ontogenesis of E. gracilis is not due to a lack of these three HUFAs.

show abstract

Section: Introductionsupporting

confidence: 85%

Food quality for Eudiaptomus gracilis: the importance of particular highly unsaturated fatty acids

Elert

Stampfl

2000

Freshwater Biology

View full text Add to dashboard Cite

show abstract

“…Williamson et al, 1985;Ban, 1994;Hansen & Santer, 1995;Makino & Ban, 2000) in that survival rate, duration of postembryonic development and size of copepods depend on food quantity when food of sufficient quality is used. Our results show that survival rate and adult size decrease, while development duration increases, with decreasing food concentration.…”

Section: Discussionmentioning

confidence: 99%

Survival and development of five species of cyclopoid copepods in relation to food supply: experiments with algal food in a flow‐through system

Hopp

Maier

2005

Freshwater Biology

View full text Add to dashboard Cite

1. Cyclops spp. generally develop and grow during favourable food conditions in spring and undergo a diapause in summer, while Acanthocyclops robustus, Mesocyclops leuckarti and Thermocyclops crassus develop and grow in summer when they face poorer food conditions and more competition from Cladocera. Since nauplii are the bottleneck in copepod development, we tested the hypothesis that Cyclops abyssorum and C. vicinus nauplii have higher food requirements for survival and development than the nauplii of A. robustus, M. leuckarti and T. crassus. We also tested survivorship and development from hatching to adulthood. 2. Survivorship and development of the copepods was studied in a flow-through system using five concentrations of the phytoflagellate Chlamydomonas reinhardtii in the range from 1 · 10 4 to 4.5 · 10 5 cells mL )1 (approximately 0.5-22.5 mg C L )1 ). 3. Nauplii of both species of Cyclops died at intermediate to low (C. abyssorum) and low (C. vicinus) food concentrations, while nauplii of A. robustus, M. leuckarti and T. crassus survived at all concentrations. 4. The negative effects of low food concentration were also reflected in development. In C. abyssorum and C. vicinus, development duration increased at low food concentration while development was much less affected in A. robustus and T. crassus. Mesocyclops leuckarti was intermediate between Cyclops spp. and A. robustus/T. crassus, with an increase in development duration at the lowest food concentration. 5. Our results support the hypothesis that summer diapause in Cyclops spp. has developed as a strategy to avoid a food bottleneck for nauplii.

show abstract

“…Furthermore, their abundance is negatively related to increasing biomass of filamentous cyanobacteria (KASPRZAK et al, 1993). Food concentration below 60 µg dw L -1 may finally cease reproduction (WILLIAMSON et al, 1985). Chlorophyll a concentration in Breiter Luzin is ranging around 7.0 µg L -1 which equals to a phytoplankton supply of approximately 350 µg dw L -1 (KASPRZAK and KOSCHEL, 2000).…”

Section: Discussionmentioning

confidence: 99%

Habitat Characteristics ofEurytemora lacustris(Poppe, 1887) (Copepoda, Calanoida): The Role of Lake Depth, Temperature,Oxygen Concentration and Light Intensity

Kasprzak¹,

Reese

Koschel

et al. 2005

Internat. Rev. Hydrobiol.

View full text Add to dashboard Cite

Field observations, laboratory experiments and a literature survey were conducted to evaluate the habitat characteristics of Eurytemora lacustris (POPPE 1887), a freshwater calanoid copepod species. Combined effects of temperature and oxygen concentration in the deep water of thermally stratifying lakes seem to be the ultimate factors governing the occurrence of the species throughout its home-territory. E. lacustris is largely restricted to relatively deep lakes (>30 m) providing a hypolimnetic refuge characterised by low temperatures (<~10°C) and oxygenated water during summer. Therefore, although the species is spread over much of Europe it was only found in a small number of lakes. Long-term records in different lakes revealed E. lacustris to be perennial with relatively high biomasses occurring from May to September. During thermal stratification on average 87% of the nauplii and 72% of the copepodite biomass was found in hypolimnetic waters colder than 10°C. Diurnal vertical migration was observed for the copepodid stages, but the migration amplitude clearly decreased from May to September. The migration amplitude was significantly related to light intensity. According to its special habitat requirements, E. lacustris might be considered a glacial relict sensitive to temperature increase and oxygen depletion. IntroductionThe distribution of a given species within its home-territory largely depends on the species' ecological requirements and the extent to which these needs are satisfied by a certain biotope. As a result of the co-evolution between environment and biota, plants, animals and micro-organisms are restricted to particular geographical regions and habitats (ILLIES, 1971). Some species might be abundant in many places while others are rare and characterised by a scattered distribution (ILLIES, 1978). With respect to lakes, chemical and physical features of the habitat such as temperature, oxygen concentration and solar radiation are as important as biological factors like food supply and predation (THIENEMANN, 1928;LINDEMAN, 1942; STRAŠKRABA, 1980;ZARET, 1980). Eurytemora lacustris (POPPE, 1887), a calanoid freshwater copepod, can be found in lakes throughout an area reaching from the Boreal highlands of northern Norway south to the Black Sea and from the Central European lowlands to the eastern parts of the Caspian reInternat. Rev. Hydrobiol. 90

show abstract

Food limitation in naupliar and adult Diaptomus pallidus1

Cited by 32 publications

References 28 publications

Food quality for Eudiaptomus gracilis: the importance of particular highly unsaturated fatty acids

Food quality for Eudiaptomus gracilis: the importance of particular highly unsaturated fatty acids

Survival and development of five species of cyclopoid copepods in relation to food supply: experiments with algal food in a flow‐through system

Habitat Characteristics ofEurytemora lacustris(Poppe, 1887) (Copepoda, Calanoida): The Role of Lake Depth, Temperature,Oxygen Concentration and Light Intensity

Contact Info

Product

Resources

About