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Growth and Size of the Tropical Sea Cucumber Holothuria (Halodeima) atra Jager at Enewetak Atoll, Marshall Islands
|Title:||Growth and Size of the Tropical Sea Cucumber Holothuria (Halodeima) atra Jager at Enewetak Atoll, Marshall Islands|
|Authors:||Ebert, Thomas A.|
|Issue Date:||Apr 1978|
|Publisher:||University of Hawaii Press|
|Citation:||Ebert TA. 1978. Growth and size of the tropical sea cucumber Holothuria (Halodeima) atra Jager at Enewetak Atoll, Marshall Islands. Pac Sci 32(2): 183-191.|
|Abstract:||In September 1975, 5031 sea cucumbers (Holothuria atra
Jager) were tagged with tetracycline and returned to a gutter on the seaward
reef bench of Ananij Island, Enewetak Atoll, Marshall Islands. A sample of
184 individuals was collected in September 1976. Animals were dissected and
plates of the calcareous ring were examined with ultraviolet radiation for
tetracycline lines. Based on 18 tagged individuals, the Brody-Bertalanffy
growth constants are: K = 0.11 and P = 0.89 cm (for interradial plates).
Length (L, cm) and weight (W, g) of individuals are related to plate size:
L = 36.35P and W = 1950P3, giving maximum size as 32 cm and 1352 g.
Length frequency distributions for the population did not change from 1975
to 1976. A preliminary estimate of annual loss is 50 to 70 percent of the total
population based on the growth parameters and population size structure.
Holothuria atra shows asexual reproduction by transverse fission, which
appears to be the major source of recruitment at Ananij rather than from the
|Appears in Collections:||Pacific Science Volume 32, Number 2, 1978|
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