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Found 13 results.

Mortality rate of cultured Gigantidas childressi in deep-sea mussel culture in 2019

Mortality/survival of animals in nutrition treatments 'm' (methane), 'a+m' (algae and methane) and 'a' (algae), that were not sacrificed for other analyses (initial animal numbers: 9-10).

Gas consumption of cultures Gigantidas childressi

Gas consumption of two batches (1 and 2) of cultured G. childressi. Batch 2 mussels were cultured under 3 different nutrition regimes (CH4, algae + CH4, only algae). Methane consumption of batch 2 mussels was measured twice, in 2017 and 2019.

CH4 concentrations in the culture system during long-term culture of Gigantidas childressi

The seawater in the G. childressi culture system was enriched with methane by injection of methane-enriched air from an air-methane gas mixing device. methane concentrations were monitored using a CONTROS HydroC® CH₄ sensor in the filter tank of the culture system.

Volume - mass relationship of silica sand used to measure mussel shell volumes in deep-sea mussel culture

Volume (V) – weight (m) relationship of silica sand (grading 50-1000μm) used to measure G. childressi shell volume. A standardized cup of exact 0.2602 mL was used to measure 1 to 30 as well as 35 and 40 standardized units of sand.

Condition index of cultured Gigantidas childress in deep-sea mussel culture in 2016

Gigantidas childressi (cultured from July 2014 to August 2016) were sampled after 23 months of culture. The conditions index was calculated as the ratio of ash-free dry weight (g) and mussel shell volume (mL).

Valve gape activity of cultured Gigantidas childresse: individual data

Valve gape activity of cultured G. childressi mussels from different nutritional treatments (CH4: 'M', algae + CH4: 'MA', algae: 'A') in response to mean steps (including both, step-wise increasing and decreasing methane levels) of seawater CH4 concentrations based on time lapse image analysis.

Methane concentrations in deep-sea mussel culture: hand feed

During culture of deep-sea mussels Bathymodiolus azoricus in November 2013, the culture system (200 L) was repetitively enriched with methane by adding 5 L CH4-saturated sea water (after 15 minutes of equilibration with a gas diffusor stone, solution containing ~8 mmol of CH4). The CH4 concentrations were continuously measured by CONTROS HydroC® CH₄ sensor placed in the culture system.

Condition index of cultured Gigantidas childress in deep-sea mussel culture in 2019

Gigantidas childressi from three different nutritional treatments (cultured from August 2017 to November 2019) were sampled after 27 months of culture. The conditions index was calculated as the ratio of ash-free dry weight (g) and mussel shell volume (mL).

Clearance rates of Gigantidas childressi filtering phytoplankton

Clearance rates of two batches (1 and 2) of cultured G. childressi mussels filtering phytoplankton. Batch 1 mussels ('small': 51 ± 3 mm SD, 'large': 77 ± 4 mm SD) received either Rhodomonas or Nannochloropsis cells. Batch 2 mussels from were cultured under different nutritional treatments (CH4: 'M', algae + CH4: MA', only algae: 'A'). The measurement of clearance rates of batch 2 G. childressi cultured in the 'A' treatment (without CH4 supply) was conducted twice: once while mussels were placed in CH4-enriched seawater, and, subsequently, once without CH4.

Total weight and wet weight of cultured Gigantidas childressi in deep-sea mussel culture

Cultured G. childressi wet weight – total weight relationship measured for Ci measurements in 2016

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