Laguna Joyuda (station 1)
Basic information
Sample name: Laguna Joyuda (station 1)

Reference: A. W. Stoner and C. Acevedo. 1990. The macroinfaunal community of a tropical estuarine lagoon. Estuaries 13(2):174-181 [ER 3057]
Country: United States
State: Puerto Rico

Coordinate: 18° 7' N, 67° 11' W
Basis of coordinate: stated in text
Geography comments: "on the west coast of Puerto Rico"
Climate and habitat
Habitat: lagoon
Protection: unprotected
Substrate: ground surface
Habitat comments: "a shallow, brackish water basin with surface area of 1.21. km2. It is connected to the sea by a narrow channel" and "fringed by a mangrove forest... Sediments are composed mostly of muds with high organic content"
the station is "close to the lagoon inlet" and "had a sandy mud bottom with shell fragments and a depth of 1.1 m"
Life forms: crustaceans, clams, snails, other invertebrates
Sampling methods: sieves
Sample size: 3298
Years: 1985 - 1987
Sampling comments: "Macrobenthic infauna were collected... from July 1985 to June 1987... 10 replicate core samples (8.0 cm diameter) were taken... on each date. The upper 12 cm of sediment were sieved in the field using a 0.50-mm screen"
Sample: 3319
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-05-19 19:49:19
Modified: 2019-05-19 19:49:19
Abundance distribution
21 species
2 singletons
total count 3298
standardised richness: not computable
Fisher's α: 2.998
geometric series k: 0.6828
Hurlbert's PIE: 0.5790
Shannon's H: 1.3996
Good's u: 0.9994