Description: Ecosystem models often use wet weights to parameterise biota disregarding their water content. This may be especially erroneous for gelatinous plankton, such as salps and pyrosomes, with high, compared to crustaceans, water content. Poorly quantified residual water should also be corrected when using dry weights for parameterisation. We estimated the residual water content (as well as elemental and organic contents) for seven tunicate species, one pyrosome and six salps (N = 107). Specimens were collected during several research expeditions in the Southern Ocean, the Northeast Pacific, east of New Zealand, and around Hawaii between 2004 and 2021. The residual water content of tunicates was analyzed for inter- and intraspecific variability. The H-surplus method (Madin et al. 1981) was applied for the residual water content calculation. The dataset contains information about the life cycle stage (blastozooid versus oozooid), tissue type (tunic versus whole organism), drying method (oven versus freeze-drying), size, and the elemental and organic contents of the samples. The methods and results of the study are described in detail in Lüskow et al. (submitted).
Global identifier:
Doi(
"10.1594/PANGAEA.961147",
)
Measurements {
domain: Unspecified,
station: None,
measured_variables: [
"Event label",
"Sample ID",
"Cruise/expedition",
"DATE/TIME",
"Year of sampling",
"Vessel",
"Station label",
"Gear",
"DEPTH, water",
"DEPTH, water",
"Location",
"LATITUDE",
"LONGITUDE",
"Species, unique identification",
"Species, unique identification (Semantic URI)",
"Species, unique identification (URI)",
"Order",
"Size",
"Tissue descriptor",
"Method comment",
"Number of specimens",
"Life stage",
"Container, mass",
"Mass",
"Sample, dry mass",
"Mass",
"Ash mass",
"Ash free dry mass",
"Ash free dry mass",
"Carbon, per dry mass",
"Nitrogen, per dry mass",
"Hydrogen, per dry mass",
"Carbon/Nitrogen ratio",
"Carbon/Nitrogen ratio",
"Carbon/Hydrogen ratio",
"Hydrogen/Carbon ratio",
"Comment",
"Hydrogen",
"Water, residual",
"Sum",
"Sum",
],
methods: [
"Analytical balance, Sartorius, BP211D",
"Calculated",
"Analytical balance, Sartorius, BP211D",
"Calculated",
"Analytical balance, Sartorius, BP211D",
"Calculated",
"Calculated",
"Elemental analyzer, Perkin Elmer, 2400",
"Elemental analyzer, Perkin Elmer, 2400",
"Elemental analyzer, Perkin Elmer, 2400",
"Calculated",
"Calculated",
"Calculated",
"Calculated",
"Calculation according to Madin et al. (1981)",
"Calculation according to Madin et al. (1981)",
"Calculation according to Madin et al. (1981)",
"Calculation according to Madin et al. (1981)",
],
}
Dataset
Comment: Instruments used for: * Freeze-drying: Edwards Modulyo Freeze Dryer (Oakville, Ontario, CA) * Weighing: analytical balance (Sartorius BP 211 D, Perkin Elmer AD-6) * CNH analysis: Elemental Analyzer CHN, Perkin Elmer 2400 Series II
Origins: /Wissenschaft/PANGAEA
Tags: Krustazeen ? Asche ? Kohlenstoff ? Stickstoff ? Wasserstoff ? Geografische Koordinaten ? Plankton ? Ökosystemmodell ? Studie ? Wassergehalt ? Wasserprobe ? Meeresgewässer ? Wasser ? Ofen ? Rückstand ? Südlicher Ozean ? Salpa ? pyrosome ? stoichiometry ? thaliaceans ? water of hydration ?
Bounding boxes: -158.259° .. 179.03683333333333° x -69.0392° .. 50.941°
License: cc-by/4.0
Language: Englisch/English
Issued: 2024-04-18
Modified: 2024-04-18
Time ranges: 2004-04-12 - 2021-05-27
Accessed 1 times.