TEMPO: a new ecological module for studying deep-sea community dynamics at hydrothermal vents

Sarrazin, Jozée; Blandin, J.; Delauney, Laurent; Dentrecolas, S.; Dorval, P.; Dupont, J.; Legrand, J.; Leroux, D.; Léon, Pierre; Levêque, J.; Rodier, Philippe; Vuillemin, Renaud; Sarradin, Pierre‐Marie

doi:10.1109/oceanse.2007.4302310

Cited by 21 publications

(21 citation statements)

References 3 publications

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“…The biggest discrepancy between both modules was the energy provision, with the Atlantic one (TEMPO) being autonomous and battery dependent (wireless) and the NEP one (TEMPOmini) being connected to a cabled network. Detailed descriptions of both modules can be found in Sarrazin et al (2007Sarrazin et al ( , 2014 for TEMPO and Auffret et al (2009) and for TEMPO-mini. Henceforth, the Atlantic set-up (TEMPO on MoMAR/EMSO-Azores) will be referred to as MAR and the Pacific set-up (TEMPO-mini on NEPTUNE/ONC) set-up as NEP (Fig. 1).…”

Section: Observatories and Study Sitesmentioning

confidence: 99%

Biological and environmental rhythms in (dark) deep-sea hydrothermal ecosystems

Cuvelier

Legendre²,

Laës-Huon

et al. 2017

Biogeosciences

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Abstract. During 2011, two deep-sea observatories focusing on hydrothermal vent ecology were up and running in the Atlantic (Eiffel Tower, Lucky Strike vent field) and the Northeast Pacific Ocean (NEP) (Grotto, Main Endeavour Field). Both ecological modules recorded imagery and environmental variables jointly for a time span of 23 days (7-30 October 2011) and environmental variables for up to 9 months (October 2011-June 2012). Community dynamics were assessed based on imagery analysis and rhythms in temporal variation for both fauna and environment were revealed. Tidal rhythms were found to be at play in the two settings and were most visible in temperature and tubeworm appearances (at NEP). A ∼ 6 h lag in tidal rhythm occurrence was observed between Pacific and Atlantic hydrothermal vents, which corresponds to the geographical distance and time delay between the two sites.

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Section: Observatories and Study Sitesmentioning

confidence: 99%

Biological and environmental rhythms in (dark) deep-sea hydrothermal ecosystems

Cuvelier

Legendre²,

Laës-Huon

et al. 2017

Biogeosciences

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“…The same limitation is found in stationary bottom-mounted cameras first used for fish observation (Smith and Tyler, 1973); whilst their functioning necessitated less energy than AUVs, their autonomy were still restricted in time because of biofouling. This last issue was resolved via localised microchloration with a biological observation module (TEMPO) developed for studying deep-sea communities (Sarrazin et al, 2007). Nevertheless this system requires deployment from a research vessel due to its size and weight.…”

Section: Introductionmentioning

confidence: 99%

VideoSolo, an autonomous video system for high-frequency monitoring of aquatic biota, applied to coral reef fishes in the Glorioso Islands (SWIO)

Chabanet

Loiseau

Join³

et al. 2012

Journal of Experimental Marine Biology and Ecology

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“…The recently developed ecological module TEMPO (Sarrazin et al 2007) carries a color video camera with 720 × 576 pixels resolution combined with a chemical ion and sulfide analyzer. Two temperature probes were mounted close to the chemical analyzer inlet and a third one on the frame of the sensor module during deployment in 1700 m depth near a mussel assemblage at hydrothermal vents at the Azores Triple Junction (Sarrazin et al 2007). Thus, to our knowledge, SMOKE is the only stand-alone apparatus capable of acquiring macro photography time-lapse pictures synchronized with centimeter-scale temperature readings.…”

Section: Rinke and Leementioning

confidence: 99%

“…The same system was used for experiments showing that long-term time-lapse camera studies do not impact the behavior of abyssal megafauna (Vardaro et al 2007). The recently developed ecological module TEMPO (Sarrazin et al 2007) carries a color video camera with 720 × 576 pixels resolution combined with a chemical ion and sulfide analyzer. Two temperature probes were mounted close to the chemical analyzer inlet and a third one on the frame of the sensor module during deployment in 1700 m depth near a mussel assemblage at hydrothermal vents at the Azores Triple Junction (Sarrazin et al 2007).…”

Section: Rinke and Leementioning

confidence: 99%

Macro camera temperature logger array for deep‐sea hydrothermal vent and benthic studies

Lee

2009

Limnology & Ocean Methods

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IntroductionDeep sea submersibles such as remotely operated vehicles (ROVs, e.g., Jason/Medea) and human-occupied vehicles (HOVs, e.g., DSV Alvin) have revolutionized research by allowing viewing and recording of deep sea environments as well as in situ experimentation and specimen collection. Observations of activities and behavior of benthic fauna for extended periods is not practical, however, given the expense and/or limited bottom time of ROVs and HOVs. The absence of longterm observations may slow discovery of key biological/ecological phenomena, since rare events are not often documented. For example, the first observation of spawning by the giant tubeworm Riftia pachyptila happened by a chance sighting, despite hundreds of dives that have visited this environment (Van Dover 1994). Cabled observatories are planned and will provide a powerful means of allowing a continuous presence for instrumentation and observation in the deep sea (see the Neptune Canada project; Barnes et al. 2007). One disadvantage is the overall cost, and the limitation that deployments are generally fixed at one area for long periods, until the instrumentation can be moved by submersible.The ability to deploy one or several additional observation platforms by submersible can multiply the capability for observation of biota and, for biological studies, greatly increase the amount of observational data with a negligible increase in cost to the operations. Here we describe the standalone instrument SMOKE (Submersible Macrophotography Observation Kamera Equipment). SMOKE is capable of timelapse photography for up to 28 h, with simultaneous recording of temperature (for use in hydrothermal vent environments), and was recently deployed at greater than 2200 m depth at the Juan de Fuca Ridge in the Northeast Pacific. This instrument is less expensive and simpler than other deep-sea imaging and time-lapse devices. Each element is stand-alone and functions independently, thus this approach increases instrument reliability via reduced complexity. In its present configuration, SMOKE is designed as an underwater macro camera capable of acquiring high-resolution pictures of small organisms in an 18-by 14-cm field of view. The camera operates without external connections. Image acquisition rate is set before deployment, and autofocus exposure features are used to control focus and exposure time. AbstractLong-term observations of faunal communities are essential to identify biological and ecological key phenomena. Observational studies of deep sea habitats such as hydrothermal vents, however, have been restricted by technological limitations. Here we describe our recently developed instrument SMOKE (Submersible Macrophotography Observation Kamera Equipment) that was used for time-lapse macrophotography synchronized with temperature readings for up to 28 h at 2200 m depth. Lighting was provided by a novel low-cost white LED array powered by AA or AAA batteries embedded in epoxy within an aluminum case. SMOKE was successfully deployed at the Juan de ...

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TEMPO: a new ecological module for studying deep-sea community dynamics at hydrothermal vents

Cited by 21 publications

References 3 publications

Biological and environmental rhythms in (dark) deep-sea hydrothermal ecosystems

Biological and environmental rhythms in (dark) deep-sea hydrothermal ecosystems

VideoSolo, an autonomous video system for high-frequency monitoring of aquatic biota, applied to coral reef fishes in the Glorioso Islands (SWIO)

Macro camera temperature logger array for deep‐sea hydrothermal vent and benthic studies

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