Chapter 15 Impacts of Manganese Nodule Mining on the Environment: Results from Pilot-Scale Mining Tests in the North Equatorial Pacific

Ozturgut, E.; Lavelle, J. W.; Burns, Robert E.

doi:10.1016/s0422-9894(08)71420-x

Cited by 21 publications

(12 citation statements)

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“…Such experiments have included the V.S. Deep Ocean Mining Environmental Study (DOMES, see OZTURGUT et al, 1981) and the German large-scale Disturbance and recolonisation Experiment (DISCOL, see THIEL, 1992;THIEL et al, 1992THIEL et al, ,1993; THIEL and SCHRIE-VER, 1990). All these experiments have shown that dragging equipment across the deep-sea bed produces a large sediment plume.…”

Section: Potential Effects Of Fishing On Lophelia Pertusamentioning

confidence: 99%

The Biology ofLophelia pertusa(Linnaeus1758) and Other Deep‐Water Reef‐Forming Corals and Impacts from Human Activities.

Rogers

1999

International Review of Hydrobiology

389

304

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Over the last twenty years, human exploitation has begun to have an impact in the deep sea, especially in the upper bathyal zone. This has mainly taken the form of deep-sea fishing but more recently oil exploration has extended beyond the continental shelf. Deep-water coral reefs occur in the upper bathyal zone throughout the world. These structures, however, are poorly studied with respect to their occurrence, biology and the diversity of the communities associated with them. In the North-East Atlantic the coral Lophelia pertusa has frequently been recorded. The present review examines the current knowledge on L. pertusa and discusses similarities between its biology and that of other deep-water, reef-forming, corals. It is concluded that L. pertusa is a reef-forming coral that has a highly diverse associated fauna. Associated diversity is compared with that of tropical shallow-water reefs. Such a highly diverse fauna may be shared with other deep-water, reef-forming, corals though as yet many of these are poorly studied. The main potential threats to L. pertusa in the North-East Atlantic are considered to be natural phenomena, such as slope failures and changes in ocean circulation and anthropogenic impacts such as deep-sea fishing and oil exploration. The existing and potential impacts of these activities on L. pertusa are discussed. Deep-sea fishing is also known to have had a significant impact on deep-water reefs in other parts of the world.

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Section: Potential Effects Of Fishing On Lophelia Pertusamentioning

confidence: 99%

The Biology ofLophelia pertusa(Linnaeus1758) and Other Deep‐Water Reef‐Forming Corals and Impacts from Human Activities.

Rogers

1999

International Review of Hydrobiology

389

304

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“…The medium used in preparation of the column is an inorganic salt solution that is nonreactive with the particles and has a low viscosity and neutral pH. The criteria for selection of the density gradient medium and details of the linear-density gradient preparation are the subject of another paper (14). Figure 1 shows the experimental scheme for preparation of the linear-density stratified column; Figure 2 shows the density stratification in the settling column during this experiment, extending to p = 1.4 g/cm3.…”

Section: Methodsmentioning

confidence: 99%

New method of wet density and settling velocity determination for wastewater effluent

Ozturgut¹,

Lavelle²

1984

Environ. Sci. Technol.

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“…These huge metal resources are very important to the development of modern society [4,5]. Since the 1960s, developed countries led by the United States, Germany, and Japan have tried to study deep-sea polymetallic nodules [6][7][8][9]. However, due to economic, technical, political, and environmental limitations, among other reasons [5], research on polymetallic nodules has not reached the stage of commercial mining.…”

Section: Introductionmentioning

confidence: 99%

Effects of Migration and Diffusion of Suspended Sediments on the Seabed Environment during Exploitation of Deep-Sea Polymetallic Nodules

Fan

Jia

Chu

et al. 2022

Water

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With the increase in demand for metal resources, research on deep-sea polymetallic nodule mining has been reinvigorated, but the problem of its environmental impact cannot be ignored. No matter what method is used for mining, it will disturb the surface sediments of the seabed, thereby increasing the concentration of suspended solid particles and metal ions in the water body, changing the properties of the near-bottom water body and sediments, and affecting biological activity and the living environment. Focusing on the ecological and environmental impacts of deep-sea polymetallic nodule mining, taking as our main subject of focus the dynamic changes in sediments, we investigated the environmental impacts of nodule mining and their relationships with each other. On this basis, certain understandings are summarized relating to the ecological and environmental impacts of deep-sea polymetallic nodule mining, based on changes in the engineering geological properties of sediment, and solutions for current research problems are proposed.

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Chapter 15 Impacts of Manganese Nodule Mining on the Environment: Results from Pilot-Scale Mining Tests in the North Equatorial Pacific

Cited by 21 publications

References 0 publications

The Biology ofLophelia pertusa(Linnaeus1758) and Other Deep‐Water Reef‐Forming Corals and Impacts from Human Activities.

The Biology ofLophelia pertusa(Linnaeus1758) and Other Deep‐Water Reef‐Forming Corals and Impacts from Human Activities.

New method of wet density and settling velocity determination for wastewater effluent

Effects of Migration and Diffusion of Suspended Sediments on the Seabed Environment during Exploitation of Deep-Sea Polymetallic Nodules

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