Dynamics of a mussel longline system

Raman-Nair, W.; Colbourne, Bruce

doi:10.1016/s0144-8609(02)00083-3

Cited by 28 publications

(5 citation statements)

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“…The production cycle of mussels depends on their growth and optimal harvesting conditions (Petersen et al 2020), including local environmental conditions such as temperature, salinity (Bayne & Worrall 1980;Fuentes et al 2000;Karayücel & Karayücel 2000;Waite et al 2005), concentration of food particles (Camacho et al 1995;Celik et al 2009;Filgueira et al 2008;Lök et al 2007;Waite et al 2005;Hatzonikolakis et al 2017), seeding density and farming system design (Drapeau et al 2006;Ferreira et al 2007a;Lauzon-Guay et al 2005;Raman-Nair & Colbourne 2003;Strohmeier et al 2008). In fact, the mussel density on a rope will decrease as the mussels grow in size and take up more space (Bonardelli et al 2019).…”

Section: Figurementioning

confidence: 99%

How do mussel provenance and spat size affect mussel aquaculture performance in the South-Western Mediterranean (Algeria)?

Belgaid

Nacef

Alioua

et al. 2022

OandHS

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The objective of this research was to study the effects of size and spat origin of farmed Mytilus galloprovinciallis in mussel longlines in the east of Bou-Ismail Bay (central coastal Algeria, south-western Mediterranean). The study was conducted from October 2017 to July 2020 in the east of Bou-Ismail Bay. The mussel spat were obtained from four origin sites (Tlemcen, Tenes, Ain Tagourait and the study site) and were seeded on three spat sizes (10–30, 30–60 and >60 mm). The production performance of this species was analysed on 284 random mussel plots using average physical product (APP), gain and loss rates, condition index (CI), percentage of edibility (PE) and shell thickness index (STI). Apart from the CI and loss rate, the performance indicators showed significant differences according to spat size and source (p < 0.05). Overall, the highest APP (4.3) was recorded for the small seeded mussels (10–30) mm and for those originating from Tlemcen, near finfish cages (APP = 4.14). These individuals exhibited more efficient growth and physiology for commercial size and performed better than the spat collected at the study site. The results can be considered a valid contribution to best farming practice for optimising the production of this species in Algeria. It also contributes to the development of integrated multitrophic aquaculture (IMTA) methodology, which is suitable for use in the oligotrophic Western Mediterranean.

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Section: Figurementioning

confidence: 99%

How do mussel provenance and spat size affect mussel aquaculture performance in the South-Western Mediterranean (Algeria)?

Belgaid

Nacef

Alioua

et al. 2022

OandHS

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“…Models based on numerical methods can be used not only for dimensioning longlines and structures, but also to predict their behaviour under harsh environmental conditions. The dynamics of mussel longline systems were studied by modelling the culture as lumped masses attached to the main line initially (15,16). Modelling the mussel culture allows one to optimize the dimensions of the mooring and adapt it to the size of the culture (15,16).…”

Section: Considerationsfor Thedesignmentioning

confidence: 99%

Offshore mussel aquaculture: new or just renewed?

2009

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“…Commercial codes are also available such as OrcaFlex (https://www.orcina.com/), ProteusDS (https://dsa-ltd.ca/proteusds/overview/), and AquaSim (Berstad et al, 2012;Berstad and Heimstad, 2019). Considerable work has also been done modeling single line aquaculture systems such as mussel farms (e.g., Raman-Nair and Colbourne, 2003 andRaman-Nair et al, 2008;Pribadi et al, 2019;Knysh et al, 2020). Many of these net and mussel farm modeling techniques can be modified for kelp farming applications, such as Knysh et al (2022).…”

Section: Introductionmentioning

confidence: 99%

Mooring tension assessment of a single line kelp farm with quantified biomass, waves, and currents

Fredriksson

Gelais

Dewhurst³

et al. 2023

Front. Mar. Sci.

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While the number of kelp farms have steadily increased, few have been deployed with sensors to measure mooring tensions with substantial biomass. During the kelp farming season of 2018–2019 in Saco Bay, Maine USA, a field study was conducted to assess mooring loads due to environmental conditions and kelp growth. The effort included the deployment of a farm with a 122 m cultivation line and spread mooring with rope, chain, and anchors in 15.2 m of water. The system was deployed with seeded twine in late November and harvested in May. In April, with kelp biomass estimated at 7.8 kg m−1, two load cells were installed to measure mooring tensions in response to currents and waves. The currents and waves were measured with two Acoustic Doppler Current Profilers deployed adjacent to the load cells. From these measurements, we characterized the maximum loading case in response to a complex hydrodynamic environment. The maximum tension occurred on the landward side of the farm even though wave exposure was seaward. The tension in the landward side mooring was dominated by steady drag from the currents going to the east southeast. During this event, the two profilers were positioned on the leading and trailing edges of the farm relative to the prevailing current direction. Velocities measured at 0.5 m bins showed a 26.7% reduction at the depths where the kelp was located. To analyze the dynamic portion of the load cell datasets, the oscillatory components were processed into energy density spectra. Results showed that mooring tensions were not affected by waves at frequencies greater than 0.175 Hz, with most of the energy occurring near 0.12 Hz. The tension spectra did reveal energy at frequencies between 0.0075 and 0.01 Hz, indicating a low frequency response, possibly due to nonuniform velocity profiles inducing vertical motion of the cultivation line. It was also observed that the landward mooring, subjected to higher currents, was more sensitive to oscillating loads than the slack seaward side. The high-fidelity dataset will be useful for numerical modeling validation to further understand these dynamics and to optimize kelp farm designs.

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Dynamics of a mussel longline system

Cited by 28 publications

References 1 publication

How do mussel provenance and spat size affect mussel aquaculture performance in the South-Western Mediterranean (Algeria)?

How do mussel provenance and spat size affect mussel aquaculture performance in the South-Western Mediterranean (Algeria)?

Offshore mussel aquaculture: new or just renewed?

Mooring tension assessment of a single line kelp farm with quantified biomass, waves, and currents

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