Impact of a phytoplankton bloom on mortalities and feeding response of farmed Atlantic salmon, Salmo salar, in west Scotland

Treasurer, James W.; Hannah, Fiona; Cox, D I

doi:10.1016/s0044-8486(02)00516-1

Cited by 40 publications

(32 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Harmful algal blooms produced by dinoflagellates, diatoms, silicoflagellates, raphidophytes, and prymnesiophytes (Granéli and Turner, 2006), are often associated to fish mortality episodes worldwide (Treasurer et al, 2003;Burridge et al, 2010). In our study, some phytoplankton taxa previously related with farmed fish kill events were recorded at high densities in both fish farms (Cembella et al, 2002;Treasurer et al, 2003).…”

Section: Discussionsupporting

confidence: 50%

“…In our study, some phytoplankton taxa previously related with farmed fish kill events were recorded at high densities in both fish farms (Cembella et al, 2002;Treasurer et al, 2003). Chaetoceros is a colonial diatom genus characterized by long setae, which either can clogging gills causing asphyxia or can penetrate the gill tissues causing histological damages (Smayda, 2006).…”

Section: Discussionmentioning

confidence: 58%

“…Chaetoceros is a colonial diatom genus characterized by long setae, which either can clogging gills causing asphyxia or can penetrate the gill tissues causing histological damages (Smayda, 2006). Fish kills attributed to Chaetoceros occurred in Canada, USA and Scotland where abundances of 10 5 cells l −1 were recorded (Rensel, 1992;Treasurer et al, 2003). In analyzed samples, we recorded abundances of the same order of magnitude only during one farmed fish mortality event recorded in April 2012 in the Almería fish farm, therefore Chaetoceros should be taken into account as plankton species that may had contributed to fish mortality events.…”

Section: Discussionmentioning

confidence: 80%

See 2 more Smart Citations

Consequences of Stinging Plankton Blooms on Finfish Mariculture in the Mediterranean Sea

Bosch-Belmar

Milisenda

Girons³

et al. 2017

Front. Mar. Sci.

View full text Add to dashboard Cite

In recent years, caged finfish mariculture across European seas suffered production losses by severe fish mortality, following episodic outbreaks of invertebrate cnidarian stingers. Due to their stinging cells and injectable venoms, medusozoan jellyfish, or drifting propagules of polyp colonies at high density may impair caged fish health through toxic effects on vulnerable tissues of gills and skin, and related secondary bacterial infections. Gill disorders in European sea bass (Dicentrarchus labrax) fish farms along the Spanish Mediterranean coast are commonly reported, but regular monitoring of the frequency of cnidarian outbreaks and their potential impacts on caged fish is still poorly enforced. In this study, two sea bass mariculture farms in Southern Spain (Málaga; Almería) were monitored biweekly for zooplankton, phytoplankton and fish gills condition, over 13 or 30 months for the Málaga and Almería facilities, respectively, within the period 2012-2014. Significant, direct correlations were found among low water temperature, recorded fish mortalities, and high abundances of planktonic cnidarians, particularly of the hydrozoan siphonophores Muggiaea atlantica and M. kochii, and the larval stage of Ectopleura larynx, a common member of cage biofouling communities. A significant relationship between cnidarian densities and the quantitative scoring of gill pathology was also observed. In addition, high densities of long-bristled planktonic diatoms (Chaetoceros spp.) coincided with a major fish mortality event (April 2012, Almería farm). Standardised monitoring of plankton dynamics and composition may help in promoting response capacities of Mediterranean mariculture managers to fish health challenges (such as stinging plankton blooms) by (a) improving diagnostic tools and preventative countermeasures and (b) supporting the development of science-based spatial planning and sustainable growth of coastal mariculture.

show abstract

Section: Discussionsupporting

confidence: 50%

Section: Discussionmentioning

confidence: 58%

Section: Discussionmentioning

confidence: 80%

See 1 more Smart Citation

Consequences of Stinging Plankton Blooms on Finfish Mariculture in the Mediterranean Sea

Bosch-Belmar

Milisenda

Girons³

et al. 2017

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…Both toxic and non-toxic blooms of phytoplankton can induce hypoxic conditions which could have a negative impact on the cellular respiration of any aerobic organism (Shumway et al, 1985;Wu, 2002;Treasurer et al, 2003). After a 20-h incubation with high concentrations (4 x 10 6 cells Lr 1 ) of both live and lysed cells of K. brevis, coral larvae exhibited a notable decline in oxygen consumption.…”

Section: Discussionmentioning

confidence: 99%

Effects of the Florida red tide dinoflagellate, Karenia brevis, on oxidative stress and metamorphosis of larvae of the coral Porites astreoides

et al. 2010

View full text Add to dashboard Cite

“…Algal blooms can be caused by several phytoplankton species and have historically caused large losses to salmon farms in Scotland and elsewhere. Typically they can cause gill irritations as the result of toxins released by the algae, leading to diverse problems such as anoxia and osmo-regulatory problems (Treasurer et al 2003). Therefore, losses through algal blooms can cause the dead fish to be tainted by these toxins and disposal via non-livestock animals should be avoided.…”

Section: Mortality In Scottish Atlantic Salmon Productionmentioning

confidence: 99%

Perspectives on the Utilization of Aquaculture Coproduct in Europe and Asia: Prospects for Value Addition and Improved Resource Efficiency

Newton

Telfer

Little

2013

Critical Reviews in Food Science and Nutrition

View full text Add to dashboard Cite

Faculty of Natural SciencesInstitute of Aquaculture Doctor of PhilosophyBy-products and mortalities from aquaculture have often posed significant challenges to the industry because of their low value resulting in high costs and environmental impact from their disposal. However increasing interest is being expressed in their utilisation to add value to the aquaculture industry and provide synergies with industries which had previously been in competition with aquaculture.Current and prospective processing by-product and farm mortality utilisation strategies were reviewed along with regulations and standards which aim to control their use and protect against human and animal health hazards.The role of aquaculture and fishery by-products in the supply of fishmeal was investigated and it was found that both sectors had the potential to contribute to increasing global supply. There were significant quantities of processing by-products identified which could be directed to fishmeal manufacture but there were also significant amounts of fish production which were not being processed in some regions and could also add to supplies. Processing by-products from aquaculture species often exceed 50% of the production by mass and therefore their efficient utilisation is of significant importance to the overall performance of the value chain. Their utilisation ii strategies are diverse and in some circumstances offer the possibility to add significant value.Life Cycle Assessment (LCA) is increasingly being used to inform decision makers and consumers about the environmental performance of goods and services to make choices on best practices and informative decisions on purchasing choices. Current methodology in LCA was critiqued and developed to be used for identifying disproportionate impacts from by-product industries and comparative assessment of the eco-efficiency of value chains from Thai shrimp, Vietnamese Pangasius catfish and Scottish salmon aquaculture.New LCA methodology was developed assessing the eco-efficiency of co-products as a whole and in relation to a tonne of edible yield. Measuring the impact of the by-product industry in relation to their edible yield gave different results to measuring their ecoefficiency between the three study species. It was found that the Thai shrimp value chain was the most eco-efficient when by-products were directed to chitosan and hydrolysate manufacture, but production of the salmon was the least impacting between the species in terms of edible yield. Pangasius was the most environmentally impacting of the three species value chains using both methods. It was also found that the upstream impacts of fish and shrimp production, especially feed manufacture, contributed most to the environmental impact in most circumstances, using both economic and mass allocation.Although the methodology produced interesting results, there were some drawbacks and the data sets also had several gaps which led to some assumptions, which could have skewed the results and interpretation.The cau...

show abstract

Impact of a phytoplankton bloom on mortalities and feeding response of farmed Atlantic salmon, Salmo salar, in west Scotland

Cited by 40 publications

References 10 publications

Consequences of Stinging Plankton Blooms on Finfish Mariculture in the Mediterranean Sea

Consequences of Stinging Plankton Blooms on Finfish Mariculture in the Mediterranean Sea

Effects of the Florida red tide dinoflagellate, Karenia brevis, on oxidative stress and metamorphosis of larvae of the coral Porites astreoides

Perspectives on the Utilization of Aquaculture Coproduct in Europe and Asia: Prospects for Value Addition and Improved Resource Efficiency

Contact Info

Product

Resources

About