Accurate and precise wood volume estimates are vital for sustainable forest management and are typically obtained using sample-based estimators. This study explores cluster sampling for estimating wood volume in an Amazonian forest, aiming to: (1) measure the loss of precision and deviation in volume estimates by comparing full samples to reduced samples and (2) analyze how the distance between cluster subunits affects the vol...

The growing demand for offshore oil and gas production in deep waters has motivated the development of technologies to enable the continuous, reliable, and cost-effective monitoring of subsea equipment. Traditional inspection techniques rely on ROVs and AUVs, leading to delays between data acquisition and recovery and high operational costs. Underwater acoustic communication systems represent an attractive alternative for tran...

Myleus pachyodus , a new serrasalmid species, is described from the Rio Teles Pires and Rio Jamanxim, both tributaries of the Rio Tapajós in Mato Grosso and Pará states, Brazil. The new species differs from all congeners by having a remarkable ontogenetic thickening of the teeth shifting from slender incisiform in juveniles to thick bulky teeth at standard length ≥ 100 mm, whereas congeners present slender, antero‐posteriorly...