Hellwig-Armonies, Monika; Armonies, Werner (2017): Life cycles of Platyhelminthes and Acoelomorpha in a muddy accretion zone with Spatina vegetation near Kampen, Island of Sylt, 1982 to 1983 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.878085, In: Armonies, Werner; Hellwig-Armonies, Monika (2017): Platyhelminth species composition and abundance in sheltered coastal habitats of the eastern North Sea (1982-1983) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.878061
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Published: 2017-07-24 • DOI registered: 2017-08-21
Project(s):
Coastal Ecology @ AWI (AWI_Coast)
Macrobenthic long-term series in the German Bight (LTER_Benthos)
Coverage:
Latitude: 54.967200 * Longitude: 8.353100
Date/Time Start: 1982-05-15T12:00:00 * Date/Time End: 1983-07-15T12:00:00
Event(s):
Comment:
Between Sep 1982 and May 1983 the life cycles of Acoelomorpha and Platyhelminthes were studied in a muddy accretion zone with Spartina on the island of Sylt. Based on monthly sampling, each individual was determined to species level and its body length measured (to the next 50 µm in individuals < 0.5 mm, otherwise to the nearest 100 µm). Sexual maturity was estimated separately for male and female organs using a 6-step scale: (0) juvenile, no sign of sexual organs; (1) early adolescent, bright patches appear as first sexual organs start to develop; (2) adolescent, bright patches for all organs visible; (3) late adolescent, beginning production of sperm or eggs; (4) sexually mature; (5) decline stage. Most Platyhelminth species had a life span of 1 year with a single reproductive period in late winter or early spring while Acoelomorpha commonly had a plurivoltine life cycle.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Identification | ID | Record ID | |||
| 2 | Sample ID | Sample ID | ||||
| 3 | DATE/TIME | Date/Time | Geocode | |||
| 4 | Height above sea level | Height | m a.s.l. | Height above mean high tide level | ||
| 5 | Replicate | Repl | Replicate number | |||
| 6 | Species | Species | ||||
| 7 | Body length | BL | mm | |||
| 8 | Individuals | Ind | # | Counting | ||
| 9 | Maturity index | c-p | maturity of male organs | |||
| 10 | Maturity index | c-p | maturity of female organs |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
48060 data points
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