August/September 1993 data from the TRANSDRIFT I cruise describes the distribution and composition of macrobenthic communities on the eastern Laptev Sea shelf. The dataset covers 11 sampling stations, identifying 265 species, with crustaceans being the most numerous group at 94 species. The research was conducted by the organization SCIOPS.
Use Cases
- Analyze species richness per station, which ranged from 30 to 104, against environmental variables like water depth and ice cover duration.
- Model community zonation (Shallow, Intermediate, Deep zones) using key indicator species such as *Mysis oculata*, *Saduria entomon*, *Portlandia arctica*, and *Ophiocten sericeum*.
- Investigate correlations between sediment composition and benthic fauna distribution patterns within identified depth zones.
- Assess the dominance structure of specific taxonomic groups, like crustaceans and bivalves, across different sampling stations.
Strengths
- Data from a specific, documented scientific cruise (TRANSDRIFT I) in August/September 1993.
- Identifies 265 macrobenthic species with taxonomic detail, including a count of 94 crustacean species.
- Explicitly defines three depth-based community zones with associated dominant species.
Limitations
- Single temporal snapshot from 1993, limiting analysis of trends or changes over time.
- Limited to 11 sampling stations, which may not capture full spatial heterogeneity of the region.
- Specific column names and raw measurement data for environmental factors are not provided in the description.
Provenance
- Source
- nasa_earthdata
- Collection Method
- Samples collected from dredge catches at 11 stations during a research cruise.
- Time Range
- August/September 1993
- Freshness
- null
- Geography
- Eastern shelf of the Laptev Sea, Arctic Ocean.