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Seawater Sampling and Collection

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Published on: June 17, 2009

A new ROV storage device for deep-sea sampling.

Estéfane C Reis¹, Ian V DA Rocha¹, Maria Patricia Curbelo-Fernandez^1,2

¹Laboratório de Análise Ambiental (LABTOX), Rua São Januário 116, 1º andar, São Cristóvão, 20921-003 Rio de Janeiro, RJ, Brazil.

Anais Da Academia Brasileira De Ciencias

|November 8, 2023

Summary

A new polypropylene box designed for Remotely Operated Vehicles (ROVs) minimizes damage and contamination during deep-sea biota sampling. This innovative tool successfully collects diverse specimens, preserving them for in situ analysis.

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Area of Science:

Marine Biology
Oceanography
Deep-Sea Ecology

Background:

Deep-sea sampling faces challenges due to logistical demands and equipment limitations.
Traditional methods like trawls and nets cause physical damage and contamination, compromising specimen integrity.
Maintaining in situ conditions is crucial for studying living organisms and preventing degradation in analyses.

Purpose of the Study:

To develop and evaluate a novel sampling device for deep-sea biota.
To reduce physical damage and contamination during specimen collection.
To improve the preservation of deep-sea organisms for scientific study.

Main Methods:

A modified polypropylene box, inspired by Kellogg et al. (2009), was designed for Remotely Operated Vehicle (ROV) deployment.
The device was tested in eight oceanographic campaigns at depths ranging from 50 to 900 meters.
Sediment and various biota, including Scleractinia, octocorals, and rhodoliths, were collected.

Main Results:

The ROV-compatible polypropylene box effectively sampled sediment and deep-sea biota.
The device ensured minimal damage and contamination, preserving specimen integrity.
Successful collection included framework-building corals, octocorals, associated fauna, and rhodoliths.

Conclusions:

The adapted polypropylene box is a successful tool for minimally invasive deep-sea sampling.
This method enhances the quality of collected specimens for ecological and biological research.
The device offers a reliable solution for deep-sea biota and sediment collection at various depths.