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]
Geography
Country: United States

State: Puerto Rico

Coordinate: 18° 7' N, 67° 11' W
Latlng basis: stated in text

Geography comments: "on the west coast of Puerto Rico"

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Environment
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"

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

Sampling methods: sieves

Sample size: 3298 individuals

Years: 1985 - 1987

Net or trap nights: 0

Basal area status: not applicable

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"

Metadata
Sample no: 3319

Contributor no: John Alroy

Enterer: John Alroy

Created: 2019-05-19 19:49:19

Modified: 2019-05-19 09:49:19

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
21 species
2 singletons
total count 3298
geometric series index: 26.6
Fisher's α: 2.998
geometric series k: 0.6828
Hurlbert's PIE: 0.579
Shannon's H: 1.3996
Good's u: 0.9994
Register
Thalassodrilides gurwitschi 2064
Capitella cf. capitata 458
Grandidierella bonnieroides 72
Dasybranchus lumbricoides 259
Steninonereis martini 145
Nemertea indet.66
Exogone sp. 79
Minuspio sp. B 30
Macoma brevifrons 40
Nereis occidentalis 3
Prionospio sp. 6
Syllis sp. 25
Marphysa sanguinea 15
Cirratulus sp. 11
Haminoea sp. 11
Minuspio sp. A 5
Pycnogonida indet.1
Pectinaria gouldi 3
Actiniaria indet.2
Onuphis sp. 2
Tellina sp. 1