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  • microcrustacean zooplankton  (2)
  • 11_Midwater_trawl; 24_Bongo_net; 26_Midwater_trawl; 29_Midwater_trawl; 33_Midwater_trawl; 38_Midwater_trawl; 43_Midwater_trawl; 58_Midwater_trawl; 7_Dip_net; 7_Midwater_trawl; BA03_CanTrawl250; BA04_CanTrawl250; BONGO; Bongo net; Calculated; Carbon/Phosphorus ratio; CPE1_Dip_net; CS02_CanTrawl250; CS09_CanTrawl250; CS13_CanTrawl250; CS15_CanTrawl250; CS18_CanTrawl250; Ctenophore; DATE/TIME; DEPTH, water; Duration; Edwards Modulyo Freeze Dryer (Oakville, Ontario, CA); EP02_CanTrawl250; Event label; Gear; H02_CanTrawl250; Hand net; Heteropod; HN; Hope_Island_Dip_net; I_Midwater_trawl; IBC01_CanTrawl250; IBC03_CanTrawl250; IBC10_CanTrawl250; Identification; IVI10_CanTrawl250; IVI15_CanTrawl250; Jellyfish; JF03_CanTrawl250; Latitude of event; Life stage; LJS07_CanTrawl250; Location; Longitude of event; Measured using callipers; Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999); Midwater trawl; Month; MSN; Multiple opening/closing net; MWT; Nitrogen/Phosphorus ratio; Northeast Pacific; P12_Multinet_Medi; P26_Ring_net; Parameter; Phosphorus, total; QCSD01_CanTrawl250; QCSD02_CanTrawl250; QCSD04_CanTrawl250; QCST02_CanTrawl250; QCST05_CanTrawl250; QCST07_CanTrawl250; QCST11_CanTrawl250; QCST12_CanTrawl250; QCST19_CanTrawl250; RI01_CanTrawl250; RI05_CanTrawl250; Ring net; RN; Salish Sea; Salp; Sample type; Size; Sooke_Bay_Dip_net; Species; Station label; stoichiometry; Subarctic Northeast Pacific; T01_CanTrawl250; T02_CanTrawl250; T04_CanTrawl250; T06_CanTrawl250; T07_Dip_net; Tissue, dry mass; Vessel; VI_north_tip_Dip_net; VI02_CanTrawl250; VI03_CanTrawl250; VI04_CanTrawl250; VI07_CanTrawl250; VI08_CanTrawl250; VI09_CanTrawl250; VI12_CanTrawl250; VI14_CanTrawl250; VI22_CanTrawl250; VI25_Bongo_net; Weighted; Wet mass; Year of observation  (1)
  • AWI_BioOce; Biological Oceanography @ AWI; Calculated; Event label; Experimental treatment; German Bight, North Sea; HelgolandRoads_temora_longicornis_2016; Kabeltonne; Replicate; Temora longicornis, female, absorption efficiency as carbon; Temora longicornis, female, absorption efficiency as nitrogen; Temora longicornis, female, egg production rate as carbon per individual; Temora longicornis, female, egg production rate as nitrogen per individual; Temora longicornis, female, excretion as nitrogen per individual; Temora longicornis, female, fecal pellet production as carbon per individual; Temora longicornis, female, fecal pellet production as nitrogen per individual; Temora longicornis, female, ingestion rate as carbon per individual; Temora longicornis, female, ingestion rate as nitrogen per individual; Temora longicornis, female, net egg production efficiency as carbon; Temora longicornis, female, net egg production efficiency as nitrogen; Temora longicornis, female, net growth efficiency as carbon; Temora longicornis, female, net growth efficiency as nitrogen; Temora longicornis, female, respiration as carbon per individual; Temora longicornis, female, somatic growth rate as carbon per individual; Temora longicornis, female, somatic growth rate as nitrogen per individual  (1)
Document type
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Production biology of copepods and cladocerans in three south-east Sri Lankan low-land reservoirs and its comparison to other tropical freshwater bodies (1997)
    Springer
    Hydrobiologia 350 (1997), S. 145-162 
    Details
    ISSN: 1573-5117
    Keywords: microcrustacean zooplankton ; tropical limnology ; biomass ; production ; empirical relationships
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Production, biomass and productivity of the microcrustacean zooplanktonpopulations of three low-land reservoirs, Tissawewa (eutrophic), Ridiyagama(moderately eutrophic), and Muruthawela (mesotrophic) in South-east SriLanka were studied. The temporal variation of zooplankton production wasstudied in Tissawewa on basis of fortnightly sampling on five fixed samplingstations for 2 years. Zooplankton production was relatively high, mainlybecause of high copepod production predominantly realised due to twocalanoid copepods, Phyllodiaptomus annae and Heliodiaptomus viduus. Abouthalf of the copepod production was contributed by the naupliar instarstages, whereas the contribution of the eggs was generally much smaller(〈20%). In contrast, the cladoceran production consisted for ca50–70% of egg production. The results of this study werecompared with those from more than twenty other tropical and subtropicalwaterbodies reported in the literature by deriving empirical relationshipsbetween mean phytoplankton biomass and mean zooplankton biomass andproduction. Mean zooplankton biomass and annual zooplankton production werefound to be positively related to mean phytoplankton biomass, and meanphytoplankton biomass proved to be a good predictor of mean zooplanktonbiomass (r2 = 0.58) and a moderate good predictor ofannual zooplankton production (r2 = 0.43). However,the relationships between the mean phytoplankton biomass and zooplankton P/Bwere not significant neither for small-bodied and large-bodied cladoceransnor for copepods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003035831790
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The effect of temperature, and food quantity and quality on the growth and development rates in laboratory-cultured copepods and cladocerans from a Sri Lankan reservoir (1997)
    Springer
    Hydrobiologia 350 (1997), S. 131-144 
    Details
    ISSN: 1573-5117
    Keywords: microcrustacean zooplankton ; tropical limnology ; laboratory cultures ; growth ; development rates ; temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Length growth, instar durations, fecundity and mortality rates of fivespecies of microcrustacean zooplankton from a tropical reservoir weremeasured in relation to food quantity and temperature in laboratorycultures. Three cladocerans (Ceriodaphnia cornuta, Moina micrura,Diaphanosoma excisum), one calanoid copepod (Heliodiaptomus viduus), and onecyclopoid copepod (Mesocyclops thermocyclopoides) were studied. Filteredseston (45 µm mesh) from a local pond was used for food. Two foodconcentrations were employed: (1) 10 µg chlorophyll l−1(ca 0.25 mg Cl−1), and (2) 50 µg chlorophylll−1 (ca 1.25 mg C l−1). Food levels and watertemperature (22.5, 27.5, and 32.5 °C) used, roughly covered the rangesfound in the reservoir. Although all the three growth parameters were oftenaffected to some degree by temperature and food, the quantitative responseof the species differed. Also, the species reacted differently to the threepossible interactions (i.e. food × temperature,food × instar, andtemperature × instar). This contributed to the overalldifferences in the species responses. For the cladocerans, instar durationswere always affected by temperature. The food did not affect the durationtime of the adults and that of the combined juvenile instars, the latterexcept in one case significantly. For the two copepods food level affectedthe duration times of naupliar and copepodite instars, but the effect oftemperature was only significant for H. viduus. The development timesobserved for H. viduus were extraordinary long compared with values reportedin the literature for other tropical calanoids. This suggests that foodconditions in our culture were adversely affecting its growth rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003087815861
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Unknown
    Efficiency calculations for Temora longicornis under different nutrient regimes (2018)
    PANGAEA
    Details
    Publication Date: 2023-07-06
    Keywords: AWI_BioOce; Biological Oceanography @ AWI; Calculated; Event label; Experimental treatment; German Bight, North Sea; HelgolandRoads_temora_longicornis_2016; Kabeltonne; Replicate; Temora longicornis, female, absorption efficiency as carbon; Temora longicornis, female, absorption efficiency as nitrogen; Temora longicornis, female, egg production rate as carbon per individual; Temora longicornis, female, egg production rate as nitrogen per individual; Temora longicornis, female, excretion as nitrogen per individual; Temora longicornis, female, fecal pellet production as carbon per individual; Temora longicornis, female, fecal pellet production as nitrogen per individual; Temora longicornis, female, ingestion rate as carbon per individual; Temora longicornis, female, ingestion rate as nitrogen per individual; Temora longicornis, female, net egg production efficiency as carbon; Temora longicornis, female, net egg production efficiency as nitrogen; Temora longicornis, female, net growth efficiency as carbon; Temora longicornis, female, net growth efficiency as nitrogen; Temora longicornis, female, respiration as carbon per individual; Temora longicornis, female, somatic growth rate as carbon per individual; Temora longicornis, female, somatic growth rate as nitrogen per individual
    Type: Dataset
    Format: text/tab-separated-values, 240 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Unknown
    Phosphorus content and elemental ratios of gelatinous and soft-bodied zooplankton from the Northeast Pacific (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-25
    Description: Climate change and anthropogenic disturbances, among other factors, can change the seawater stoichiometry (C/N/P) and consequently elemental ratios of phytoplankton. This change in prey stoichiometry may not be tolerated by all grazer/predator species. Gelatinous and soft-bodied zooplankton (GZ) are suggested to be more resilient to such changes. We sampled GZ species (12 taxa in total) in the Northeast Pacific off British Columbia (Canada), determined their phosphorus (P) content and elemental ratios (C/P, N/P), and analysed intraspecific variability associated with size and ontogeny. P was determined as orthophosphate after acidic oxidative hydrolysis with 5 % H2SO4 according to Grasshoff et al. (1999). Carbon (C) and nitrogen (N) data were taken from Lüskow et al. (2021). P % DW (dry weight) decreased with size for Aequorea sp., Aurelia labiata, Cyanea capillata, and Salpa aspera (species with sufficient sample sizes). P % DW differed significantly for two development stages of the salp S. aspera. C/P and N/P were mostly size- and stage-independent. C/P values of GZ were generally higher than values of crustacean zooplankton.
    Keywords: 11_Midwater_trawl; 24_Bongo_net; 26_Midwater_trawl; 29_Midwater_trawl; 33_Midwater_trawl; 38_Midwater_trawl; 43_Midwater_trawl; 58_Midwater_trawl; 7_Dip_net; 7_Midwater_trawl; BA03_CanTrawl250; BA04_CanTrawl250; BONGO; Bongo net; Calculated; Carbon/Phosphorus ratio; CPE1_Dip_net; CS02_CanTrawl250; CS09_CanTrawl250; CS13_CanTrawl250; CS15_CanTrawl250; CS18_CanTrawl250; Ctenophore; DATE/TIME; DEPTH, water; Duration; Edwards Modulyo Freeze Dryer (Oakville, Ontario, CA); EP02_CanTrawl250; Event label; Gear; H02_CanTrawl250; Hand net; Heteropod; HN; Hope_Island_Dip_net; I_Midwater_trawl; IBC01_CanTrawl250; IBC03_CanTrawl250; IBC10_CanTrawl250; Identification; IVI10_CanTrawl250; IVI15_CanTrawl250; Jellyfish; JF03_CanTrawl250; Latitude of event; Life stage; LJS07_CanTrawl250; Location; Longitude of event; Measured using callipers; Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999); Midwater trawl; Month; MSN; Multiple opening/closing net; MWT; Nitrogen/Phosphorus ratio; Northeast Pacific; P12_Multinet_Medi; P26_Ring_net; Parameter; Phosphorus, total; QCSD01_CanTrawl250; QCSD02_CanTrawl250; QCSD04_CanTrawl250; QCST02_CanTrawl250; QCST05_CanTrawl250; QCST07_CanTrawl250; QCST11_CanTrawl250; QCST12_CanTrawl250; QCST19_CanTrawl250; RI01_CanTrawl250; RI05_CanTrawl250; Ring net; RN; Salish Sea; Salp; Sample type; Size; Sooke_Bay_Dip_net; Species; Station label; stoichiometry; Subarctic Northeast Pacific; T01_CanTrawl250; T02_CanTrawl250; T04_CanTrawl250; T06_CanTrawl250; T07_Dip_net; Tissue, dry mass; Vessel; VI_north_tip_Dip_net; VI02_CanTrawl250; VI03_CanTrawl250; VI04_CanTrawl250; VI07_CanTrawl250; VI08_CanTrawl250; VI09_CanTrawl250; VI12_CanTrawl250; VI14_CanTrawl250; VI22_CanTrawl250; VI25_Bongo_net; Weighted; Wet mass; Year of observation
    Type: Dataset
    Format: text/tab-separated-values, 1583 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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