Celestun Lagoon (rainy season)
Basic information
Sample name: Celestun Lagoon (rainy season)

Reference: A. Morelos-Villegas, A. R. Condal, and P.-L. Ardisson. 2018. Spatial heterogeneity and seasonal structure of physical factors and benthic species in a tropical coastal lagoon, Celestun, Yucatan Peninsula. Regoinal Studies in Marine Science 22:136-146 [ER 3056]
Geography
Country: Mexico

State: Yucatan



Coordinate: 20° 54' N, 90° 21' W
Coordinate basis: estimated from map

Geography comments: "The inner zone... is shallow (<0.5 m) and scarcely influenced by tides, with low salinity... The soft bottom sediment is a mixture of clay, limestone, sand, and organic matter"

Environment
Habitat: lagoon

Protection: unprotected

Substrate: ground surface

Habitat comments: "a karstic coastal lagoon"

Methods
Life forms: crustaceans,clams,snails,other invertebrates

Sampling methods: sieves

Sample size: 15764 individuals

Years: 1998, 1999

Seasons: wet or monsoon

Sampling comments: "Sampling was carried out seasonally during the 1998–1999 annual cycle. There was one sampling event during each of the dry, rainy, and windy seasons. The sampling was organized into a regular grid of 45 sampling sites distributed across the inner zone of the lagoon. The sampling grid consisted of nine 600–800 m long transects, perpendicular to the coastline, with a distance of 700 m among transects. Five sampling sites were selected per transect, with distances among them ranging from 100 to 250 m and covering the entire transverse section of the lagoon from one margin to the other... Sampling was conducted from a small boat at an average depth of 0.5 m... Two sediment samples were collected at each site with a Birge-Ekman grab (15 x 15 x 15 cm) and then transferred to plastic buckets; one sample was used for the study of macroinfauna... the organisms were separated using a 500-μm mesh sieve"

Metadata
Sample number: 3318

Contributor: John Alroy

Enterer: John Alroy

Created: 2019-05-19 18:52:45

Modified: 2019-05-19 08:52:45

Abundance distribution
17 species
3 singletons
total count 15764
geometric series index: 22.0
Fisher's α: 1.882
geometric series k: 0.5659
Hurlbert's PIE: 0.6188
Shannon's H: 1.3452
Good's u: 0.9998
Each square represents a species. Square sizes are proportional to counts.
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