Aquacultural Engineering (AQUACULT ENG)

Publisher: Elsevier

Journal description

Aquacultural Engineering is concerned with the design and development of effective aquacultural systems for marine and freshwater facilities. The journal aims to apply the knowledge gained from basic research which potentially can be translated into commercial operations. Problems of scale-up and application of research data involve many parameters, both physical and biological, making it difficult to anticipate the interaction between the unit processes and the cultured animals. Aquacultural Engineering aims to develop this bioengineering interface for aquaculture and welcomes contributions in the following areas: - engineering and design of aquaculture facilities - engineering-based research studies - construction experience and techniques - in-service experience, commissioning, operation - materials selection and their uses - quantification of biological data and constraints Style of presentation is flexible, but those papers dealing with specific problems should attempt to define them clearly in terms of systems engineering, quantifying the constraints, proposing solutions, implementing and detailing the design, and finally evaluating the outcome.

Current impact factor: 1.18

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 1.181
2013 Impact Factor 1.232
2012 Impact Factor 1.406
2011 Impact Factor 1.421
2010 Impact Factor 0.947
2009 Impact Factor 0.901
2008 Impact Factor 1.467
2007 Impact Factor 1.237
2006 Impact Factor 1.026
2005 Impact Factor 0.975
2004 Impact Factor 0.733
2003 Impact Factor 0.769
2002 Impact Factor 0.532
2001 Impact Factor 0.494
2000 Impact Factor 0.593
1999 Impact Factor 0.459
1998 Impact Factor 0.642
1997 Impact Factor 0.441
1996 Impact Factor 0.708
1995 Impact Factor 0.465
1994 Impact Factor 0.41
1993 Impact Factor 0.293
1992 Impact Factor 0.25

Impact factor over time

Impact factor
Year

Additional details

5-year impact 1.50
Cited half-life 8.90
Immediacy index 0.15
Eigenfactor 0.00
Article influence 0.38
Website Aquacultural Engineering website
Other titles Aquacultural engineering (Online)
ISSN 0144-8609
OCLC 38524840
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Elsevier

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Authors pre-print on any website, including arXiv and RePEC
    • Author's post-print on author's personal website immediately
    • Author's post-print on open access repository after an embargo period of between 12 months and 48 months
    • Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months
    • Author's post-print may be used to update arXiv and RepEC
    • Publisher's version/PDF cannot be used
    • Must link to publisher version with DOI
    • Author's post-print must be released with a Creative Commons Attribution Non-Commercial No Derivatives License
    • Publisher last reviewed on 03/06/2015
  • Classification
    green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Ocean net pen production of Atlantic salmon is approaching 2 million metric tons (MT) annually and has proven to be cost- and energy-efficient. Recently, with technology improvements, freshwater aquaculture of Atlantic salmon from eggs to harvestable size of 4–5 kg in land-based closed containment (LBCC) water recirculating aquaculture systems (RAS) has been demonstrated as a viable production technology. Land-based, closed containment water recirculating aquaculture systems technology offers the ability to fully control the rearing environment and provides flexibility in locating a production facility close to the market and on sites where cost of land and power are competitive. This flexibility offers distinct advantages over Atlantic salmon produced in open net pen systems, which is dependent on access to suitable coastal waters and a relatively long transport distance to supply the US market. Consequently, in this paper we present an analysis of the investment needed, the production cost, the profitability and the carbon footprint of producing 3,300 MT of head-on gutted (HOG) Atlantic salmon from eggs to US market (wholesale) using two different production systems − LBCC-RAS technology and open net pen (ONP) technology using enterprise budget analysis and carbon footprint with the LCA method. In our analysis we compare the traditional open net pen production system in Norway and a model freshwater LBCC-RAS facility in the US. The model ONP is small compared to the most ONP systems in Norway, but the LBCC-RAS is large compared to any existing LBCC-RAS for Atlantic salmon. The results need to be interpreted with this in mind. Results of the financial analysis indicate that the total production costs for two systems are relatively similar, with LBCC-RAS only 10% higher than the ONP system on a head-on gutted basis (5.60 US$/kg vs. 5.08 US$/kg, respectively). Without interest and depreciation, the two production systems have an equal operating cost of 4.37 US$/kg. Capital costs of the two systems are not similar for the same 3,300 MT of head-on gutted salmon. The capital cost of the LBCC-RAS model system is approximately $54,000,000 and the capital cost of the ONP system is approximately $30,000,000, a difference of 80%. However, the LBCC-RAS model system selling salmon at a 30% price premium is comparatively as profitable as the OPN model system (profit margin of 18% versus 24%, respectively), even though its 15-year net present value is negative and its return on investment is lower than OPN system (9% vs. 18%, respectively). The results of the carbon footprint analysis confirmed that production of feed is the dominating climate aspect for both production methods, but also showed that energy source and transport methods are important. It was shown that fresh salmon produced in LBCC-RAS systems close to a US market that use an average US electricity mix have a much lower carbon footprint than fresh salmon produced in Norway in ONP systems shipped to the same market by airfreight, 7.41 versus 15.22 kg CO2eq/kg salmon HOG, respectively. When comparing the carbon footprint of production-only, the LBCC-RAS-produced salmon has a carbon footprint that is double that of the ONP-produced salmon, 7.01 versus 3.39 kg CO2eq/kg salmon live-weight, respectively.
    No preview · Article · Feb 2016 · Aquacultural Engineering
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    ABSTRACT: Gilthead sea bream (Sparus aurata L.) is a fish commonly cultivated in the Mediterranean sea in marine cages and recirculating aquaculture systems. Managing such growing systems, requires a growth model to describe the response of the fish to their environment. The dominant predictors of growth, assuming adequate water quality, are fish size, M, water temperature, T, and feed ration, F. Over the past 30 years many experimental studies with gilthead sea bream have been conducted, each providing partial information regarding the growth function .
    No preview · Article · Jan 2016 · Aquacultural Engineering
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    ABSTRACT: As part of an applied research project, an engineering design and structure deployment study was conducted to investigate the feasibility of performing in-situ larval set of Crassostrea virginica within a temporarily deployed containment barrier. The intent of the barrier was to contain free-swimming larvae to maximize set on emplaced shell substrate. The project site was located in the Chesapeake Bay waters of Maryland (USA) in a tidal tributary adjacent to the Patuxent River. The project included a practical ocean engineering approach to specify barrier and mooring system components by investigating environmental design criteria, applying computational fluid dynamic techniques, and characterizing the barrier and mooring leg shape and tension with catenary equations. Following analysis and component specification, both the barrier and mooring system components were deployed. The structure consisted of two, 15 m length sections of Type-III turbidity curtain with a skirt depth of 4.57 meters, but adjustable with furling lines. The structure enclosed an area of about 65 m2 with clean oyster shell substrate and was held vertically in the water column with ∼0.3 meter floats at the surface and chain at the bottom of the skirt. It was deployed with an 8-point spread mooring configuration to maintain its shape in a 0.51 m/s current and 0.75 meter waves. After deployment, larvae were introduced into the enclosed volume and allowed three days to set before removing the barrier. A companion biological field study demonstrated that the technique could add over 180 juvenile oysters/m2 to the site with clean cultch. Recommendations for a potential scaled-up version are also discussed.
    No preview · Article · Jan 2016 · Aquacultural Engineering
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    ABSTRACT: Split-pond aquaculture systems are being implemented by United States (US) catfish farmers as a way to improve production performance. The split-pond consists of a fish-culture basin that is connected to a waste-treatment lagoon by two water conveyance structures. Water is circulated between the two basins with high-volume pumps (water circulators) and many different units are being used on commercial farms. In this study circulator performance was evaluated with four different circulating systems. Rotational speeds ranged from 0.5 to 3.5 rpm for a twin, slow rotating paddlewheel; 12.5 to 56.5 rpm for a paddlewheel aerator; 60 to 240 rpm for a high-speed screw pump; and 150 to 600 rpm for an axial-flow pump. Water flow rates ranged from 8.6 to 77.6 m3/min and increased with increasing rotational speed. Power input varied directly with flow rate and ranged from 0.24 to 13.43 kW for all four circulators. Water discharge per unit power input (i.e., efficiency) ranged from 3.5 to 70.9 m3·min−1·kW−1 for the circulators tested. In general, efficiency decreased as water flow rate increased. Initial investment cost for each circulator and complete circulating system ranged from US$5,850 to $22,900, and $15,335 to $78,660, respectively. The least expensive circulator to operate was the twin, slow-rotating paddlewheel, followed by the paddlewheel aerator, high-speed screw pump, and axial-flow pump. Our results show that four different circulating systems can be effectively installed and used to circulate water in split-ponds. However, water flow rate, rotational speed, required power input, efficiency, initial investment cost, and operational expense varied greatly between the systems tested. Long term studies are underway to better define the relationship between water flow rate and fish production in split-ponds. That information will help identify the water circulating system most appropriate for split-pond aquaculture.
    No preview · Article · Dec 2015 · Aquacultural Engineering
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    ABSTRACT: To improve the removal efficiency for dissolved wastes within CycloBio (CB) fluidized sand biofilters (FSBs) in recirculating aquaculture systems, we investigated their structural design and optimization using computational fluid dynamics (CFD) modeling tools, an orthogonal test method, and experimental verification. Results showed that the effects of structural parameters on bed expansion from large to small were: cone height, cone diameter and slot width. The best combination was: cone height 60mm, cone diameter 165mm, and slot width 1.0mm. The solid phase was well distributed not only in the radial direction, but also in the axial direction in the optimized CB FSB. The bed expansion (40%-120%) was increased about 13%. Energy savings were 21%-28% at the same bed expansion. When the optimized CB FSB was used to treat synthetic aquaculture wastewater, with three bed expansions and four levels of C/N, total ammonia nitrogen removal rate expressed per unit of expanded bed volume was high, from 629 to 881gm-3day-1. All results indicated that the structure of the optimized CB FSB was more reasonable and that the combination of CFD simulation and the orthogonal test method could be successfully applied to structural optimization.
    No preview · Article · Sep 2015 · Aquacultural Engineering
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    ABSTRACT: The effects of tank design on live feed consumption, growth and survival of sablefish (Anoplopoma fimbria) were examined from first-feeding larvae to weaned sub-juveniles. Larvae were stocked into wide circular 1920 L (WC, 152 cm diameter × 121 cm deep), tall circular 960 L (TC, 104 cm diameter × 152 cm deep), rectangular 150 L (RT; 78 cm × 49 cm × 54 cm deep) and conical 150 L (CO; 61 cm diameter (top), 20 cm (bottom) × 79 cm deep) tanks and reared under similar conditions and feed regimes. The experiment was conducted twice in close succession between March and August of 2012 and results from both trials were combined. At 20 days post first feeding (dpff), larvae from the WC and TC tanks were longer (p< 0.05) and consumed more Artemia than larvae from the CO tanks. The RT and CO treatments were terminated at 20 dpff due to poor survival. At 41 dpff, length, weight and SGR were not significantly different (p> 0.05) between the WC and TC treatments (WC-26.33 ± 0.71 mm, 145 ± 45 mg, 2.63 ± 0.19%; TC-26.45 ± 1.19 mm, 113 ± 40 mg, 2.76 ± 0.65%). However, survival was better in the WC treatments (21.1%) compared to the TC tanks (13.2%). Differences observed in larval survival between tank designs were most likely related to the overall volumes of the tanks as well as the relationship between depth and surface area that may be necessary to maintain optimal flow patterns. Because there is no recent published information on culturing sablefish from spawning through the sub-juvenile stage, this manuscript also includes an expanded methods and materials covering these topics.
    No preview · Article · Sep 2015 · Aquacultural Engineering
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    ABSTRACT: In this work, the practical application of a low-pressure hydrocyclone was examined for feed waste and fecal solid removal for common carp (27±3.1g, average±SD) and Nile tilapia (33±3.4g, average±SD) in a recirculating aquaculture system. The dimensions of the low-pressure hydrocyclone included an inflow diameter of 30mm, a cylinder length of 575mm, an overflow diameter of 60mm, an underflow diameter of 50mm, a cylinder diameter of 335mm and a cone angle of 68°. The different operating conditions tested were inflow rates of 400, 600, 800 and 1000mls-1, and underflow rates of 25%, 25%, 20% and 10% of the inflow rates, respectively. Feed waste totals of 4.1 to 4.8% and 3.6 to 4.0% of the feed intake were produced by the common carp and Nile tilapia, respectively. The maximum separation efficiency (Et) for the feed waste from the common carp was 71% at an inflow rate of 600mls-1 with an underflow rate of 25% of the inflow rate. The maximum separation efficiency for the feed waste from the tilapia was 59% at an inflow rate of 400mls-1 with an underflow rate of 25% of the inflow rate. The fecal solid production estimated from the digestibility was 37.9% and 35.7% of the feed intake for the common carp and Nile tilapia, respectively. The maximum separation efficiency for the feces from the common carp was 60% for an inflow rate of 600mls-1 and an underflow rate of 25% of the inflow rate. The maximum separation efficiency for the tilapia feces was 63% at an inflow of 400mls-1 with an underflow rate of 25% of the inflow rate. The low-pressure hydrocyclone can be adopted for prefiltration and/or post-filtration for the removal of various sized solids. Furthermore, the solids separated from the underflow can be easily removed for further processing.
    No preview · Article · Aug 2015 · Aquacultural Engineering