Full Text Journal Articles by
Author Richard Moccia

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Copper uptake in adult rainbow trout irradiated during early life stages and in non-irradiated bystander trout which swam with the irradiated fish.

Richard Smith, Sunita Nadella, Richard Moccia, Colin Seymour, Carmel Mothersill,

<h4>Purpose</h4>This investigation forms part of a wider study into the legacy effects of exposure of rainbow trout eggs 38 h after fertilization, eyed eggs, yolk sac larvae (YSL) or first feeders to a single 0.5 Gy X-ray dose, including the induction of a bystander effect, by the irradiated fish, to non-irradiated fish. ... Read more >>

Int J Radiat Biol (International journal of radiation biology)
[2021, :1-9]

Cited: 0 times

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Effects of biodensity on the growth, stress physiology, and welfare of Arctic charr (Salvelinus alpinus) in freshwater.

Andrew Sevier, Richard Smith, Tillmann Benfey, Roy Danzmann, Nicholas Bernier, Richard Moccia,

Biodensity is a major factor affecting the production and welfare of farmed fishes. Arctic charr (Salvelinus alpinus) (average mass 176.9 ± 3.9 g) were held at biodensities of 30, 60, 90, 120, and 150 kg/m3 (4 replicates per treatment) during a 91 day study which examined key growth, stress physiology, and welfare parameters. During experimentation ... Read more >>

Comp Biochem Physiol A Mol Integr Physiol (Comparative biochemistry and physiology. Part A, Molecular & integrative physiology)
[2019, 231:91-103]

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Irradiation of rainbow trout at early life stages results in a proteomic legacy in adult gills. Part A; proteomic responses in the irradiated fish and in non-irradiated bystander fish.

Richard W Smith, Richard D Moccia, Colin B Seymour, Carmel E Mothersill,

Exposure to a single 0.5 Gy X-ray dose of eggs at 48 h after fertilisation (48 h egg), eyed eggs, yolk sac larvae (YSL) and first feeders induces a legacy effect in adult rainbow trout. This includes the transmission of a bystander effect to non-irradiated adult trout which had swam with the irradiated ... Read more >>

Environ Res (Environmental research)
[2018, 163:297-306]

Cited: 1 time

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Irradiation of rainbow trout at early life stages results in a proteomic legacy in adult gills. Part B; the effect of a second radiation dose, after one year, on the proteomic responses in the irradiated and non-irradiated bystander fish.

Richard W Smith, Richard D Moccia, Carmel E Mothersill, Colin B Seymour,

This study extends the investigation of the legacy effects of exposure to a single radiation dose at one of four early life stages, in adult rainbow trout (Part A), by examining the effects of a second identical dose after one year; i.e. egg 48 h after fertilisation (48 h egg) + 1 ... Read more >>

Environ Res (Environmental research)
[2018, 163:307-313]

Cited: 0 times

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Effects of dietary inclusion of the yeasts Saccharomyces cerevisiae and Wickerhamomyces anomalus on gut microbiota of rainbow trout

David Huyben, Aleksandar Vidaković, Anders Kiessling, Andreas Nyman, Johan Dicksved, Richard Moccia, Torbjörn Lundh, Volkmar Passoth,

Rainbow trout (Oncorhynchus mykiss) were fed for 10weeks on a diet containing either 30% fish meal (FM) or with 20, 40 and 60% replacement of fish meal protein with Saccharomyces cerevisiae (SC) or a mixture of Wickerhamomyces anomalus and S. cerevisiae (WA). Luminal contents and mucosal tissue from the distal ... Read more >>

Aquaculture (Aquaculture (Amsterdam, Netherlands))
[2017, 473:528-537]

Cited: 5 times

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Irradiation of rainbow trout at early life stages results in trans-generational effects including the induction of a bystander effect in non-irradiated fish.

Richard W Smith, Colin B Seymour, Richard D Moccia, Carmel E Mothersill,

The bystander effect, a non-targeted effect (NTE) of radiation, which describes the response by non-irradiated organisms to signals emitted by irradiated organisms, has been documented in a number of fish species. However transgenerational effects of radiation (including NTE) have yet to be studied in fish. Therefore rainbow trout, which were ... Read more >>

Environ Res (Environmental research)
[2016, 145:26-38]

Cited: 5 times

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Exposure to acute levels of waterborne aluminium modifies the legacy of early life stage irradiation, including the communication of radiation-induced bystander signals, in adult rainbow trout.

Richard W Smith, Rohin Saroya, Colin B Seymour, Richard D Moccia, Carmel E Mothersill,

<h4>Purpose</h4>To determine if the legacy of early life stage irradiation seen in rainbow trout is modified in adult fish by acute exposure to waterborne aluminium (Al).<h4>Methods</h4>Two-year-old trout which had been irradiated as either eggs 48 h after fertilization, eyed eggs, yolk sac larvae or as first feeders, were exposed to ... Read more >>

Int J Radiat Biol (International journal of radiation biology)
[2015, 91(11):878-890]

Cited: 2 times

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Tissue-specific effects of acute aluminium exposure on the radiation-induced bystander effect in rainbow trout (Oncorhynchus mykiss, Walbaum).

Richard W Smith, Colin B Seymour, Richard D Moccia, Carmel E Mothersill,

<h4>Purpose</h4>To investigate if aluminium (Al) modifies the rainbow trout response to radiation exposure and/or the induction of a radiation-induced bystander effect.<h4>Methods</h4>Rainbow trout were exposed to 100 or 200 μg l(-1) Al (for 3 h), a 0.5 Gy X-ray dose or Al followed immediately by irradiation. The exposed fish were then ... Read more >>

Int J Radiat Biol (International journal of radiation biology)
[2015, 91(9):715-723]

Cited: 0 times

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The induction of a radiation-induced bystander effect in fish transcends taxonomic group and trophic level.

Richard W Smith, Colin B Seymour, Richard D Moccia, Thomas G Hinton, Carmel E Mothersill,

<h4>Purpose</h4>To extend the investigations of bystander effect induction in fish of the same species as the irradiated fish, to bystander effect induction between fish species and between trophic levels.<h4>Materials and methods</h4>To investigate interspecies bystander effect induction, zebrafish and medaka were irradiated with a 0.5 Gy X-ray dose and then swum ... Read more >>

Int J Radiat Biol (International journal of radiation biology)
[2013, 89(4):225-233]

Cited: 13 times

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Irradiation of rainbow trout at early life stages results in legacy effects in adults.

Carmel Mothersill, Richard W Smith, Rohin Saroya, Janet Denbeigh, Britni Rowe, Laura Banevicius, Rachel Timmins, Richard Moccia, Colin B Seymour,

<h4>Purpose</h4>Communication of signals from irradiated to non-irradiated fish has been demonstrated by our group for adults. Major questions are however, whether the effects persist for significant lengths of time (meaning there are memories or legacies of the exposure) and whether they are induced in young animals or very early stages ... Read more >>

Int J Radiat Biol (International journal of radiation biology)
[2010, 86(10):817-828]

Cited: 10 times

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Investigating fear in rainbow trout (Oncorhynchus mykiss) using the conditioned-suppression paradigm.

Stephanie Yue, Ian J H Duncan, Richard D Moccia,

Trout learned the operant task of pendulum-pressing for a food-reward in a mean of 4.3 sessions lasting 1 hr. In a separate phase, fish also learned--through classical conditioning--to associate a neutral light cue with an aversive stimulus. When again allowed to pendulum-press for food, after aversive classical conditioning, there was ... Read more >>

J Appl Anim Welf Sci (Journal of applied animal welfare science : JAAWS)
[2008, 11(1):14-27]

Cited: 5 times

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A factorial model to predict phosphorus waste output of rainbow trout (Oncorhynchus mykiss)

Katheline Hua, Cornelis F M de Lange, Arthur J Niimi, Gordon Cole, Richard D Moccia, Ming Z Fan, Dominique P Bureau,

Minimizing phosphorus (P) wastes is considered to be a key factor for environmental sustainability of freshwater aquaculture operations in many parts of the world. A factorial P model, consisting of digestibility, whole-body P deposition, P waste output and limnological transformation sub-models, was constructed to simulate the effects of different dietary ... Read more >>

Aquac Res (Aquaculture research)
[2008, 39(10):1059-1068]

Cited: 3 times

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Effect of diet and ration on the relationship between plasma GH and IGF-1 concentrations in Arctic charr, Salvelinus alpinus (L.)

Colin Cameron, Richard Moccia, Paula A Azevedo, John F Leatherland,

The purpose of the study was to investigate whether dietary ration or diet composition influence the relationship between plasma growth hormone (GH) and insulin-like growth factor-1 (IGF-1) in Arctic charr (Salvelinus alpinus L.). The pattern of changes in plasma GH and IGF-1 concentrations was examined in fish fed at different ... Read more >>

Aquac Res (Aquaculture research)
[2007, 38(8):877-886]

Cited: 8 times

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Estimating aquatic phosphorus concentrations 30 metres down-current from a rainbow trout cage array.

Gregor K Reid, Richard D Moccia,

Aquatic total phosphorus (Tot-P) is measured 30 m distant from rainbow trout (Oncorhynchus mykiss) cages, for regulatory compliance on the Canadian side of Lake Huron. The ability to predict changes in near-field Tot-P concentrations from changes in production, or to explain near-field concentrations in the event of compromised reference sites, ... Read more >>

J Environ Monit (Journal of environmental monitoring : JEM)
[2007, 9(8):814-821]

Cited: 3 times

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Repeated low-level exposure of the round goby (Neogobius melanostomas) to Clostridium botulinum type E neurotoxin.

Adam M Yule, Véronique LePage, John W Austin, Ian K Barker, Richard D Moccia,

In a 4-mo study (June 2004-September 2004), round gobies (Neogobius melanostomas) were dosed orally every 72 hr for up to 21 days with Clostridium botulinum neurotoxin type E (BoNT/E) at one of four doses: 0, 50, 250, and 500 mouse lethal doses (MLD). Fish were observed for changes in pigmentation ... Read more >>

J Wildl Dis (Journal of wildlife diseases)
[2006, 42(3):494-500]

Cited: 2 times

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Near-field loading dynamics of total phosphorus and short-term water quality variations at a rainbow trout cage farm in Lake Huron.

Gregor K Reid, Ian McMillan, Richard D Moccia,

Aquatic total phosphorus (Tot-P) is measured at fish-cages in Lake Huron for environmental regulatory compliance. An improved understanding of how Tot-P is manifested in the near-field (<or=30 m) water column relative to reference sites within the same water body, current movement and farm structures is required to help interpret sample ... Read more >>

J Environ Monit (Journal of environmental monitoring : JEM)
[2006, 8(9):947-954]

Cited: 3 times

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Membrane filtration coupled with chemical precipitation to treat recirculating aquaculture system effluents.

Ling Yang, Hongde Zhou, Richard Moccia,

Effluents from recirculating aquaculture systems (RAS) contain high concentrations of nitrogen and phosphorous wastes and thus often require proper treatment to prevent potential detrimental impacts on receiving water bodies. The purpose of this study was to evaluate the feasibility of membrane filtration coupled with chemical precipitation as a pretreatment step ... Read more >>

J Environ Qual (Journal of environmental quality)
[2006, 35(6):2419-2424]

Cited: 1 time

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Diel fluctuation of soluble phosphorus in the tank water of rainbow trout, Oncorhynchus mykiss (Walbaum), and relationships with feed inputs and dissolved oxygen

Reid, Moccia,

Aquac Res (Aquaculture research)
[2006, 37(15):1606-1610]

Cited: 0 times

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Toxicity of Clostridium botulinum type E neurotoxin to Great Lakes fish: implications for avian botulism.

Adam M Yule, Ian K Barker, John W Austin, Richard D Moccia,

Since 1999, large-scale mortalities of fish-eating birds have been observed on the Great Lakes, and more specifically on Lake Erie. Type E botulism has been established as the primary cause of death. The mechanism of type E botulism exposure in fish-eating birds is unclear. Given that these birds are thought ... Read more >>

J Wildl Dis (Journal of wildlife diseases)
[2006, 42(3):479-493]

Cited: 13 times

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Persistence of Clostridium botulinum neurotoxin type E in tissues from selected freshwater fish species: implications to public health.

Adam M Yule, John W Austin, Ian K Barker, Brigitte Cadieux, Richard D Moccia,

Rainbow trout (Oncorhynchus mykiss), round gobies (Neogobius melanostomas), yellow walleye (Stizostedion vitreum), and yellow perch (Perca flavescens) were given Clostridium botulinum neurotoxin type E (BoNT/E) at four doses (0, 800, 1500, and 4000 mouse lethal doses). BoNT/E was sought in the fish tissues at death or at the conclusion of ... Read more >>

J Food Prot (Journal of food protection)
[2006, 69(5):1164-1167]

Cited: 2 times

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