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 ...

El trabajo de investigación se llevó a cabo en el municipio Papantla del Olarte Veracruz, México con objetivo evaluar dos productos orgánicos, citrato cobre y tierras diatomeas, los cuales fueron aplicados forma foliar 3 diferentes variedades vainilla: Vanilla planifolia Jackson, pompona Schiede, insignis Ame, sistema cultivo malla sombra conformado por camellones establecidos tierra vega fibra...

Holothuria atra is one of the most common sea cucumbers of intertidal zones in the tropical IndianPacific region. Asexual reproduction through transverse fission is a biological phenomenon which has already been studied, most notably in the south of the island of Taiwan (Chao & Chang, 1989; Chao et al., 1994), on the reefs of New Caledonia (Conand, 1989) and on the Great Barrier Reef in Austral...

background: emergence of antimicrobial resistance toward a number of conventional antibiotics has triggered the search for antimicrobial agents from a variety of sources including the marine environment. objectives: the aim of this study was to evaluate the antimicrobial potential of holothuria leucospilota from qeshm and kharg islands against some selected bacteria and fungi. materials and met...

A new species of Nicrophorus in the nepalensis species-group, Nicrophorus efferens Sikes and Mousseau, is described from Bougainville Island in the Solomon Islands archipelago. It is distinguished from the known species of the genus Nicrophorus and its likely closest relative, Nicrophorus reticulatus Sikes and Madge, based on external morphology. A comparison among the four Nicrophorus species ...

A new myxosporean species is described from the fish Semaprochilodus insignis captured from the Amazon River, near Manaus. Myxobolus insignis sp. n. was located in the gills of the host forming plasmodia inside the secondary gill lamellae. The spores had a thick wall (1.5-2 microm) all around their body, and the valves were symmetrical and smooth. The spores were a little longer than wide, with...