1-20 of 24
Keywords: disturbance
Close
Sort by
Proceedings Papers

Paper presented at the Tenth ISOPE Ocean Mining and Gas Hydrates Symposium, September 22–26, 2013
Paper Number: ISOPE-M-13-066
... ABSTRACT Deep-sea mining of polymetallic nodules is expected to cause directly and indirectly disturbance of the abyssal benthic ecosystem. Acquisition of baselines data of each mining area is essential for evaluation of the environmental impacts as well as for development of site-specific...
Proceedings Papers

Paper presented at the Fifth ISOPE Ocean Mining Symposium, September 15–19, 2003
Paper Number: ISOPE-M-03-036
... and coring during 2001 and 2002 (only coring) were used out to evaluate the immediate effects of benthic disturbance and subsequent restoration of benthic environment. Results from sedimentological, geotechnical, geochemical, biochemical, microbiological and benthos analyses indicate a complex process...
Proceedings Papers

Paper presented at the Fifth ISOPE Ocean Mining Symposium, September 15–19, 2003
Paper Number: ISOPE-M-03-033
... disturbance experiment (IOM BIE; see below). The current vectors (Kotlinski et al., 1996; Tkatchenko and Stoyanova, 1998) showed the current pattern to have conformed, over the period of deployment, to the calm regime of Demidova et al. (1996). However, seafloor photographs taken 22 months later (April- May...
Proceedings Papers

Paper presented at the Fourth ISOPE Ocean Mining Symposium, September 23–27, 2001
Paper Number: ISOPE-M-01-002
... SUMMARY: Several groups of mining engineers and environmental scientists have been conducting studies for the assessment of environmental impact and additional disturbance on the deep seabed. These studies influence the development of an individual mining system and its subsystems...
Proceedings Papers

Paper presented at the Fourth ISOPE Ocean Mining Symposium, September 23–27, 2001
Paper Number: ISOPE-M-01-003
... basin subsystem mining system indian ocean basin upstream oil & gas operation rov instrumentation module polymetallic nodule subsea system disturbance Proceedings ofThe Fourth (2001) Ocean Mining Symposium Szczecin, Poland, September 23-27, 2001 Copyright © 2001 by The International...
Proceedings Papers

Paper presented at the Fourth ISOPE Ocean Mining Symposium, September 23–27, 2001
Paper Number: ISOPE-M-01-013
... ABSTRACT: In 1999 an experimental study was initiated in the western Pacific to evaluate the direct impacts of a mining machine on benthic organisms. An artificial disturbance was created, and the abundance and distributions of benthic fauna were compared with a control area. Metazoan...
Proceedings Papers

Paper presented at the Fourth ISOPE Ocean Mining Symposium, September 23–27, 2001
Paper Number: ISOPE-M-01-011
... of experimental sediment disturbance mimicking that produced by a nodule miner, was sampled immediately before and immediately after the disturbance. The results of that sampling yielded evidence of purported seasonal effects on the sea floor, produced by sedimentation of phytodetritus. The original 10M Benthic...
Proceedings Papers

Paper presented at the Fourth ISOPE Ocean Mining Symposium, September 23–27, 2001
Paper Number: ISOPE-M-01-006
... in the equatorial part of the north-east Pacific Ocean. In this investigation, the ocean surface and bottom layer, especially were observed and a baseline study \vas performed on the existing environment for physical, 31 biological, and chemical factors. This was followed by a disturbance to assess the impact from...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-032
... ABSTRACT: Watermass properties were obtained in the Indian Deep Sea Experiment (INDEX) area during pre- (27 May -: 8 July 1997) and post- (22 July - 5 September, 1997) benthic disturbance periods respectively. Watermass (Temperature-Salinity: T-S) structure was characterised with the presence...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-018
... of impact of simulated disturbance in the benthic environment shows vertical mixing of sediment, lateral distribution of particles, changes in geochemical and biochemical conditions as well as reduction in biomass in the benthic environment. The results obtained are useful in determining the indicator...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-028
... ecosystem. The abundance of meiofauna was monitored before, just after, and one and two years after the JET experiment in areas without deposits, and in those with light, moderate, and heavy deposits. In the post-disturbance survey two years after the experiment, the macro- and megabenthos were also studied...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-013
... sediment detailed exploration environmental research bie disturbance international seabed authority nodule radziejewska exploration experiment near-bottom water pore water chemical composition Proceedings ofthe Third (1999) Ocean Mining Symposium Goa, India, November 8-10, 1999 Copyright ©...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-024
... meaning Deep-sea environmental protection) focussed on the benthic ecosystem. The location of the investigations was an area in the German mining claim in the eastern equatorial Pacific where a mining-like disturbance was set. Within this framework modelling efforts were made on meso- and macroscale...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-029
...Proceedings ofthe Third (1999) Ocean Mining Symposium Goa, India, November 8-10,1999 . Copyright © 1999 by The International Society ofOffshore and Polar Engineers ISBN 1-880653-45-1 Immediate Response of Meio and Macrobenthos to disturbance caused by a benthic disturber B. S. Jngole, Z. A. Ansari...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-025
... Abstract: A 3-D hydrodynamic model for sediment transport has been developed to assess the environmental impact of benthic disturbance during the deep-sea mining activity. The model was applied to the Japan Deep-Sea Impact Experiment (JET) and a series of numerical simulations were carried out...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-020
... in CIB, the benthic disturbance experiment was carried out by operating the sediment resuspension equipment (disturber) in the indian Pioneer Area. Results of extensive studies conducted before and after the disturber experiment suggest that noticeable changes occur in the sediment texture, clay...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-030
... to be relatively invariant. Analyses of variance (ANOVA) between grab and core samples .showed that one could substitute the other for sampling only up to 10cm depth. Variability observed between samples for the two years could be due to temporal factors.· PairedT- test between pre- and post-disturbance samples...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-021
...Proceedings ofthe Third (1999) Ocean Mining Symposium Goa, India, NovemberS-l0, 1999 . Copyright © 1999 by The Interntltional Society ofOffthore and Polar Engmeers ISBN 1-880653-45-1 Effect of Benthic Disturbance on Geotechnical Characteristics of Sediments from Nodule Mining Area in the Central...
Proceedings Papers

Paper presented at the Third ISOPE Ocean Mining Symposium, November 8–10, 1999
Paper Number: ISOPE-M-99-001
... rov platform operation subsystem identification instrumentation polymetallic nodule programme programme disturbance mining system nodule mining technology collector module upstream oil & gas module participation Proceedings ofthe Third (1999) Ocean Mining Symposium Goa, India...

Product(s) added to cart

Close Modal