Academic literature on the topic 'Marine finfish'
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Journal articles on the topic "Marine finfish"
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Rexroad, Caird, Michael B. Rust, Martin Riche, Paul Wills, and Megan Davis. "Opportunities for U.S. marine finfish aquaculture." Journal of the World Aquaculture Society 52, no. 3 (May 8, 2021): 501–8. http://dx.doi.org/10.1111/jwas.12791.
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Shields, R. J. "Larviculture of marine finfish in Europe." Aquaculture 200, no. 1-2 (August 2001): 55–88. http://dx.doi.org/10.1016/s0044-8486(01)00694-9.
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Silvert, W., and J. W. Sowles. "Modelling environmental impacts of marine finfish aquaculture." Journal of Applied Ichthyology 12, no. 2 (July 1996): 75–81. http://dx.doi.org/10.1111/j.1439-0426.1996.tb00066.x.
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Snell, Terry W., Rachel K. Johnston, and Amelia B. Matthews. "Utilizing Brachionus biodiversity in marine finfish larviculture." Hydrobiologia 844, no. 1 (October 9, 2018): 149–62. http://dx.doi.org/10.1007/s10750-018-3776-8.
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Cobcroft, Jennifer M., and Stephen C. Battaglene. "Skeletal malformations in Australian marine finfish hatcheries." Aquaculture 396-399 (June 2013): 51–58. http://dx.doi.org/10.1016/j.aquaculture.2013.02.027.
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Yucel-Gier, G., O. Uslu, and F. Kucuksezgin. "Regulating and monitoring marine finfish aquaculture in Turkey." Journal of Applied Ichthyology 25, no. 6 (December 2009): 686–94. http://dx.doi.org/10.1111/j.1439-0426.2009.01367.x.
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Watanabe, Takeshi, and Robert Vassallo-Agius. "Broodstock nutrition research on marine finfish in Japan." Aquaculture 227, no. 1-4 (November 2003): 35–61. http://dx.doi.org/10.1016/s0044-8486(03)00494-0.
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Woods, Chris M. C. "Caprellid amphipods: An overlooked marine finfish aquaculture resource?" Aquaculture 289, no. 3-4 (April 2009): 199–211. http://dx.doi.org/10.1016/j.aquaculture.2009.01.018.
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LAVIDES, MARGARITA N., NICHOLAS V. C. POLUNIN, SELINA M. STEAD, DON GEOFF TABARANZA, MIA THERESA COMEROS, and JESUS RAY DONGALLO. "Finfish disappearances around Bohol, Philippines inferred from traditional ecological knowledge." Environmental Conservation 36, no. 3 (September 2009): 235–44. http://dx.doi.org/10.1017/s0376892909990385.
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SUMMARYLittle is known about local extinctions of finfish species in the most biodiverse marine ecosystem in the most marine biodiverse and anthropogenically threatened region on Earth. This paper examines coral reef associated finfish species that disappeared in the catches around the island of Bohol over the period 1950 to 2007, based on the only available data, namely traditional ecological knowledge. Generalized least squares (GLS) tests showed steep declines to zero among species formerly recorded in catches. Finfish species recommended as priority for further monitoring based on life history and disappearances in fish catch are giant grouper (Epinephelus lanceolatus) and African pompano (Alectis ciliaris). Twenty out of the 21 species that disappeared from catches were moderate to very large-bodied, six were slow-growing fish and four were late-maturing fish. Species of large body size and subject to high fishing pressure may be particularly vulnerable. Traditional ecological knowledge when applied to population dynamics studies can add value to development of new monitoring methods. This knowledge can moreover inform the prioritization of species for fisheries assessment and conservation action.
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Morales-Serna, Francisco Neptalí, Juan Manuel Martínez-Brown, Rosa Maria Medina-Guerrero, and Emma Josefina Fajer-Ávila. "Caligids-potential pathogens for marine finfish aquaculture in Mexico?" Latin American Journal of Aquatic Research 44, no. 3 (February 23, 2017): 433–41. http://dx.doi.org/10.3856/vol44-issue3-fulltext-1.
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Parasitic copepods of the family Caligidae, the so-called sea lice, may be deleterious to marine or brackish finfish aquaculture. To date, biological and ecological studies of sea lice have been mostly restricted to species from cold or temperate regions. In Mexico there are some records of sea lice species on marine fishes; however, the research regarding their biology and ecology has been scarce. It is possible that a high biodiversity of sea lice is distributed in coastal waters of Mexico; therefore, their significance as pathogenic parasites should increase. The purpose of this review is to outline the current knowledge of the life cycle, host location, ecology, effect on fish health, and control strategies of sea lice in order to establish supportive basis for natural resource management and control of parasites and diseases of marine fish cultured in Mexico.
Dissertations / Theses on the topic "Marine finfish"
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Rombenso, Artur Nishioka. "ALTERNATIVE LIPIDS IN NUTRITION OF MARINE FINFISH." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/dissertations/1223.
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Fish oil sparing and replacement is a major focus in the fields of aquaculture and aquaculture nutrition. Most of the commercial fish oil production is consumed by the aquafeed industry due to its highly digestible energy and elevated content of long-chain polyunsaturated fatty acids (LC-PUFAs; ARA – 20:4n-6, EPA – 20:5n-3, and DHA – 22:6n-3), being a valuable ingredient. Given the finite supply and the growing demand for fish oil its price has increased quite drastically, leading to the search for alternative lipid sources. Generally, vegetable- and terrestrial animal-origin alternatives lack LC-PUFAs, which are physiologically important nutrients for all fish, and considered essential fatty acids for carnivorous species. When fish oil is spared or replaced by alternative lipids fish survival, growth performance, and fish health are commonly impaired if adequate levels of essential fatty acids are not provided within feeds. Additionally, fish oil sparing typically distorts fillet fatty acid profile and associated nutritional value compared to a fish oil-based diet reflecting the composition of the alternative lipid used. It is clear that to address the fish oil bottleneck in aquafeed manufacturing, researchers must understand the essential fatty acid requirements of the key commercial fish species. Fatty acid essentiality in fish has been investigated, and there is preliminary evidence that not all LC-PUFAs may be equally required, with DHA being more important, and EPA being more expendable. Whereas ARA has not been investigated in the same extent as n-3 LC-PUFAs. Additionally, certain fatty acids groupings such as saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs) may influence LC-PUFAs bioavailability, and in some cases maintain or enhance LC-PUFAs deposition. The current dissertation sought to provide new knowledge regarding LC-PUFA requirements of marine carnivorous fish (White Seabass Atractoscion nobilis, California Yellowtail Seriola lalandi and Florida Pompano Trachinotus carolinus) in the context of C18 PUFA-rich (i.e. polyunsaturated fatty acid with chain length of 18 carbon atoms) and SFA- and MUFA-rich alternative lipids. Determine if all LC-PUFAs (ARA, EPA, DHA) are equally important in meeting fatty acids requirements and also determine the effects of dietary SFA, MUFA, and C18 PUFA content in fish oil sparing and tissue deposition of LC-PUFAs. The overall findings highlighted that DHA and ARA appear to be the primary drivers of fatty acid essentiality, whereas EPA is likely required in minor amounts. It was also demonstrated that DHA/EPA ratio had little-to-no effect on fish performance. Additionally, LC-PUFA requirements seem to be more flexible than previously assumed being influenced by dietary fatty acid profile. LC-PUFAs in marine finfish are more bioavailable in the context of SFA-/MUFA-rich alternative lipids, thus, reducing the requirements for these nutrients and allowing the fish’s physiological demand to be met with dietary levels below the minimum levels recommended. Finally, these findings suggest that although marine fish accept a variety of alternative lipids, those rich in SFAs and/or MUFAs seem advantageous in terms of limiting the effects of fish oil sparing on tissue fatty acid profiles.
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Ertör, Irmak. "The political ecology of marine finfish aquaculture in europe: discourses, implicit assumptions, commodity frontiers and environmental justice." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457756.
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L'aqüicultura és el subsector productiu agroalimentari amb més creixement des dels anys setanta. El seu percentatge en la producció alimentària marina ha crescut de manera ininterrompuda. En un context de captures decreixents i estocs pesquers en risc, l'aqüicultura ha estat proposada com la solució a la creixent demanda de productes pesquers. Aquesta tendència ha transformat les pràctiques de producció marina, passant de la pesca a la granja, alhora que ha ofert noves fronteres per a l’entrada del capital a través del desenvolupament d'inversions i d’innovacions sociotecnològiques.
Aquesta tesi tracta de contribuir a la millor comprensió d'aquesta transformació i de les relacions socials i ecològiques desiguals produïdes. Es centra en el cas europeu, i planteja la pregunta de com i per què l'aqüicultura transforma les relacions de producció en l'àmbit marí i la seva governança. S'han fet servir diverses metodologies qualitatives, en el marc de l'ecologia política, i s'han abordat tres objectius: (i) analitzar els discursos europeus aqüícoles i identificar de quina manera es relacionen amb els processos de confinament i mercantilització del medi marí; (ii) identificar els conflictes socioambientals relacionats amb les granges aqüícoles a Europa des de la perspectiva de la justícia ambiental; i (iii) explorar l'expansió geogràfica, espacial i taxonòmica de les fronteres extractives associades a l'aqüicultura marina intensiva.
Els resultats de la investigació suggereixen que l'aqüicultura de peixos marins condiciona i transforma els espais i les relacions productives marines a través de l'expansió contínua del capital, l'extensió a noves fronteres extractives i el confinament de béns comuns. Un procés que és facilitat pels discursos dominants com ara l'imperatiu del creixement. A través de la recerca de vies per a una major acumulació de capital, la transformació de la pesca cap a l'aqüicultura intensiva marina canvia les relacions socials i ambientals en l'àmbit marí. La reconfiguració resultant de l'accés i el control sobre els comuns marins exclou diversos actors, i això al seu torn genera conflictes socioambientals i demandes de justícia ambiental relacionats amb les granges aqüícoles. La investigació assenyala que aquesta expansió produeix nous règims naturals, espacials i socioeconòmics amb la intenció de superar les crisis d'acumulació del capital vinculades al decreixement dels estocs i captures pesqueres, i es produeix mitjançant el confinament i la mercantilització del medi marí.
A través de la investigació realitzada, aquesta tesi contribueix a la literatura d'ecologia política vinculada a l'aqüicultura així com als debats teòrics més amplis associats als confinaments, el canvi agrari i socioambiental i la governança ambiental neoliberal.La acuicultura es el subsector productivo agroalimentario con mayor crecimiento desde los años setenta. Su porcentaje en la producción alimentaria marina ha crecido de manera ininterrumpida. En un contexto de capturas decrecientes y stocks pesqueros en riesgo, la acuicultura ha sido propuesta como la solución a la creciente demanda de productos pesqueros. Esta tendencia ha transformado las prácticas de producción marina, pasando de la pesca a la granja, al tiempo que ha ofrecido nuevas fronteras para la entrada del capital a través del desarrollo de inversiones e innovaciones socio-tecnológicas. Esta tesis trata de contribuir a una mejor comprensión de esta transformación y de las relaciones sociales y ecológicas desiguales producidas por ella. Se centra en el caso europeo, y plantea la pregunta de cómo y por qué la acuicultura transforma las relaciones de producción en el ámbito marino y su gobernanza. Se han usado diversas metodologías cualitativas, en el marco de la ecología política, y se han abordado tres objetivos: (i) analizar los discursos europeos acuícolas e identificar de qué manera se relacionan con los procesos de confinamiento y mercantilización del medio marino; (ii) identificar los conflictos socioambientales relacionados con las granjas acuícolas en Europa desde la perspectiva de la justicia ambiental; y (iii) explorar la expansión geográfica, espacial y taxonómica de las fronteras extractivas asociadas a la acuicultura marina intensiva. Los resultados de la investigación sugieren que la acuicultura de peces marinos condiciona y transforma los espacios y relaciones productivas marinas a través de la expansión continua del capital, la extensión a nuevas fronteras extractivas y el confinamiento de bienes comunes. Un proceso que es facilitado por los discursos dominantes como por ejemplo el imperativo al crecimiento. A través de la búsqueda de vías para una mayor acumulación del capital, la transformación de la pesca a la acuicultura intensiva marina cambia las relaciones sociales y ambientales en el medio marino. La reconfiguración resultante del acceso y el control sobre los comunes marinos excluye a diversos actores, y esto a su vez genera conflictos socioambientales y demandas de justicia ambiental relacionados con las granjas acuícolas. La investigación señala que esta expansión produce nuevos regímenes naturales, espaciales y socioeconómicos con la intención de superar las crisis de acumulación del capital vinculadas al decrecimiento de los stocks y capturas pesqueras, y se produce por medio del confinamiento y la mercantilización del medio marino. A través de la investigación realizada, esta tesis contribuye a la literatura de ecología política vinculada a la acuicultura así como a los debates teóricos más amplios asociados a los confinamientos, el cambio agrario y socioambiental y la gobernanza ambiental neoliberal.
Aquaculture is the fastest-growing food-production sector globally—since the 1970s, its share in total seafood production has increased uninterruptedly. In the context of falling captures and endangered fish stocks, aquaculture has been proposed as the solution for supplying the rising global seafood demand. This trend has transformed the practices of seafood production from capture to farming, while opening new frontiers for capital with new types of investments and socio-technical innovations. In this thesis, I contribute to understanding this transformation and the resulting uneven social and ecological production relations. By focusing on the case of Europe, I address the question of how and why marine finfish aquaculture transforms the relations of seafood production and marine governance. Adopting a range of qualitative methodological approaches informed by political ecology, my analysis has three objectives: (i) to analyze discourses on European aquaculture and uncover the way they relate to processes of enclosure and commodification of marine areas; (ii) to identify socio-environmental conflicts related to fish farms in Europe and examine them through the lens of environmental justice; and (iii) to explore the geographic, spatial, and taxonomic expansion of commodity frontiers associated with intensive marine aquaculture. The research findings presented in this thesis suggest that marine finfish aquaculture shapes and transforms marine spaces and production relations through the continuous expansion of capital into new commodity frontiers and the enclosure of marine commons, enabled by dominant discourses like growth imperative. By seeking further capital accumulation, the transformation from capture fisheries to intensive marine aquaculture changes social and ecological relations within marine area. The resulting reconfiguration of access to and control over marine commons excludes a variety of social actors, and leads in turn to socio-environmental conflicts related to fish farms informed by environmental justice demands. I claim that such a continuous expansion underpins how capital produces nature, space, and socio-ecological regimes with the intention of overcoming accumulation crises related to declining stocks and capture fisheries through further enclosing and commodifying marine areas. Through these findings, this thesis contributes to literatures on the political ecology of aquaculture as well as to broader theoretical debates on enclosures, agrarian and socio-environmental change and on neoliberal environmental governance.
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Fewtrell, Jane Leah. "The response of marine finfish and invertebrates to seismic survey noise." Thesis, Curtin University, 2003. http://hdl.handle.net/20.500.11937/1202.
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The oil and gas industry is of major economic importance to Australia. Offshore seismic surveys are an essential component of exploration for fossil fuel reserves. Offshore seismic surveys involve the use of arrays of air-guns that produce repetitive high energy, low frequency sound. There is increasing concern about the effect that the noise generated by a seismic survey has on the surrounding marine life. Various species of captive marine fish and one species of squid were exposed to the noise from a single Bolt PAR 600 B air-gun with a 20 cui firing chamber and a source level at 1 m of 203.6 dB re 1 μPa mean squared pressure. Ten trials were conducted in Jervoise Bay and two were carried out off the coast of Exmouth. A different noise regime was used in each trial, however most involved the use of approach-depart scenarios to simulate an actual seismic survey and a 10 second duty cycle. Noise levels received by the animals ranged between 128 - 192 dB re 1 μPa mean squared pressure. Behavioural observations of the fish and squid were made before, during and after air-gun noise exposure. The physiological stress response of the fish was monitored by measuring plasma cortisol and glucose levels before and after noise exposure. The sensory epithelium was removed from the ears of the fish prior to, immediately after and up to 86 days after air-gun noise exposure and examined using a scanning electron microscope. No statistically significant physiological stress response in fish was detected as a result of the air-gun noise exposure regimes used. Significant damage to the ciliary bundles of the sensory epithelium of the sacculus was observed in pink snapper (Pugrus auratus) that had been exposed to air-gun noise between 144 - 191 dB re 1 μPa for 1.71 hours. No regeneration of the hair bundles was observed 58 days after exposure to air-gun noise.However, evidence of regeneration was observed between 58 and 86 days after noise exposure. Behavioural observations suggested that as air-gun noise levels increase, fish respond by swimming faster, in tighter groups and towards the bottom of the water column. Significant increases in alarm responses were observed in fish and squid to air-gun noise exceeding 158 - 163 dB re 1μPa. An increasing proportion of alarm responses were also observed as the noise level increased. A decrease in the frequency of alarm responses for repeated exposures was observed in squid and some fish. The implications of these findings are discussed with comparisons of noise levels measured from an actual 2678 cui seismic survey air-gun array.
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Fewtrell, Jane Leah. "The response of marine finfish and invertebrates to seismic survey noise." Curtin University of Technology, Muresk Institute of Agriculture, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=15125.
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The oil and gas industry is of major economic importance to Australia. Offshore seismic surveys are an essential component of exploration for fossil fuel reserves. Offshore seismic surveys involve the use of arrays of air-guns that produce repetitive high energy, low frequency sound. There is increasing concern about the effect that the noise generated by a seismic survey has on the surrounding marine life. Various species of captive marine fish and one species of squid were exposed to the noise from a single Bolt PAR 600 B air-gun with a 20 cui firing chamber and a source level at 1 m of 203.6 dB re 1 μPa mean squared pressure. Ten trials were conducted in Jervoise Bay and two were carried out off the coast of Exmouth. A different noise regime was used in each trial, however most involved the use of approach-depart scenarios to simulate an actual seismic survey and a 10 second duty cycle. Noise levels received by the animals ranged between 128 - 192 dB re 1 μPa mean squared pressure. Behavioural observations of the fish and squid were made before, during and after air-gun noise exposure. The physiological stress response of the fish was monitored by measuring plasma cortisol and glucose levels before and after noise exposure. The sensory epithelium was removed from the ears of the fish prior to, immediately after and up to 86 days after air-gun noise exposure and examined using a scanning electron microscope. No statistically significant physiological stress response in fish was detected as a result of the air-gun noise exposure regimes used. Significant damage to the ciliary bundles of the sensory epithelium of the sacculus was observed in pink snapper (Pugrus auratus) that had been exposed to air-gun noise between 144 - 191 dB re 1 μPa for 1.71 hours. No regeneration of the hair bundles was observed 58 days after exposure to air-gun noise.However, evidence of regeneration was observed between 58 and 86 days after noise exposure. Behavioural observations suggested that as air-gun noise levels increase, fish respond by swimming faster, in tighter groups and towards the bottom of the water column. Significant increases in alarm responses were observed in fish and squid to air-gun noise exceeding 158 - 163 dB re 1μPa. An increasing proportion of alarm responses were also observed as the noise level increased. A decrease in the frequency of alarm responses for repeated exposures was observed in squid and some fish. The implications of these findings are discussed with comparisons of noise levels measured from an actual 2678 cui seismic survey air-gun array.
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Ayers, Lisa Ann. "Finfish Communities of Two Intertidal Marshes of the Goodwin Islands, York River, Virginia." W&M ScholarWorks, 1995. https://scholarworks.wm.edu/etd/1539617679.
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The finfish communities using the intertidal surfaces of a bay-exposed marsh and a sheltered, channel marsh of the Goodwin Islands, York River, Virginia were studied from May to November 1994. Samples were taken approximately twice monthly using a flume weir at three stations in each marsh. Species composition, abundance and biomass were estimated, and growth patterns and production rates were described for the dominant species. A total of 3001 fish were collected from 11 species and 8 families. Fundulus heteroclitus dominated both marshes and accounted for 83.07% of the total number of fish caught, and 84.83% of the total biomass collected. Menidia menidia was the second most abundant species at 9.00% of the total number of fish, but F. majalis was second in the total biomass at 7.51 % of the total. Abundance first peaked in June, and a second peak occurred in November. Biomass had a small peak in the beginning of August, and a large peak in late September. Analysis of variance showed the number of species captured did not differ significantly between the marshes. However, both the number of individuals and biomass were significantly higher in the protected marsh. Correspondence analysis showed that species composition in the protected marsh was mostly cyprinodontids, but in the open marsh species composition varied more throughout the sampling season. Species densities were highest at 9.8 ± 3.3 fish/m2 for F. heteroclitus in the protected marsh. Production for F. heteroclitus over the summer in the protected marsh was high at 10.1 g dry wt.fm2 due to the large number of rapidly growing larval and juvenile fish.
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Cross, Stephen F. "Marine finfish and suspended shellfish aquaculture : water quality interactions and the potential for integrated aquaculture." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/1861.
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The objective of this study was to quantitatively document the culture performance and tissue quality of commercially important deepwater shellfish species (i. e., Pacific oyster, Crassostrea gigas; and Japanese scallop, Patinopecten yessoensis) cultured adjacent to marine finfish aquaculture operations, and to determine (from a production viability and seafood safety perspective) whether integrated finfish-shellfish Multi- Trophic Aquaculture (MTA), or polyculture, is a viable option for the aquaculture industry of temperate regions. Two study sites were employed for this research, one comprising an Atlantic salmon production facility and the other a Pacific salmonf arm. A 2-year assessment program for these sites detailed: (i) oceanographic and physiographicc haracteristics;( ii) organic waste flux, composition and dispersion; (iii) shellfish uptake and contaminant persistence; and (iv) shellfish culture performance. Organic waste flux ranged from 17.11 g/m2/day to 18.35 g/m2/day at the study sites. Phosphorus, calcium, carbon, zinc, cadmium, and strontium were waste constituents that were found at elevated levels at the farm sites with significant declines in concentrations with distance downstream (maximum effect to 100-115 meters). A mass balancee stimation suggested that 85.1% of the organic material (feed) entering the cage was used for fish growth/respiration, 6.8% was lost as settlable solids to the seafloor, and the remaining 8.1% was retained in the water column and a fraction that could affect non-target species (e. g., polyculture candidates) either directly or indirectly. A similar mass balance evaluation for trace metal and chernotherepeutic constituents indicated that 12.9% of the zinc, and an estimated 98.6% of the oxytetracycline contained in feed (during treatment), was released to the water column for potential uptake by co-cultured shellfish. The shellfish monitoring component of this study revealed that trace metal constituents of the feed did become available to the shellfish, although the quantifiable accumulation of trace metals in these non-target species occurred only in close proximity to the cage system and only for the tested scallops (Patinopectin yessoensis). Uptake rates of OTC by shellfish ranged from 0.056 - 0.100 ug/g/day with an associated clearance rate of 0.016 - 0.109 ug/g/day for the respective treatment periods. The comparison of uptake-clearance dynamics suggested asignificant seasonal component to these processes. The physical and biological processes affecting contaminant uptake and clearance rates were identified as important considerations in the management of a proposed integrated-MTA system. A simple Probable Effects Duration (PED) model was developed on the basis of Uptake-Clearance-Persistence plots, illustrating the basis upon which temporal effects of water quality deterioration could be managed in such a system. Shellfish growth was neither impeded nor enhanced as a result of being cultured directly within the influences of a salmon aquaculture facility. An organoleptic test demonstrated that shellfish palatability was not negatively impacted as a consequence of culture proximity to a finfish aquaculture facility. Results of this research suggested that two options are available for developing MTA in coastal temperate waters, i. e., an integrated MTA system and/or an adjacent MTA system. A wide range of MTA social, technical and economic benefits were identified and discussed as a result of this research. It was concluded that the development of a balanced MTA could add measurable environmental benefits to existing aquaculture systemss, setting the stage for future production efficiencies and growth. Given a proper regulatory framework, including seafood (MTA products) and environmental quality surveillanc, the potential water quality impacts on the shellfish component of a finfish-shellfish MTA (identified in this research initiative), and the associated risks over seafood safety, could be effectively managed to support this aquaculture evolution.
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Sulu, Reuben John. "Multidisciplinary appraisal of the effectiveness of customary marine tenure for coral reef finfish fisheries management in Nggela (Solomon Islands)." Thesis, University of Newcastle upon Tyne, 2011. http://hdl.handle.net/10443/1327.
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The failure of centralised fisheries management systems to prevent the overexploitation of coral reef resources has led many scholars and conservation practitioners to promote the use of customary marine tenure (CMT) as an alternative devolved means of fisheries management. The effectiveness of CMT for fisheries management is debated; some scholars argue that CMT is embedded within particular historical, socio-economic and political contexts and that unless it evolves to changing circumstances, its effectiveness for fisheries management will wane under external influences and changing exploitation patterns. Each CMT regime is unique; hence its response to changing circumstances may vary. A better understanding of the circumstances under which a CMT regime is likely to succeed is important if it is to be effectively used for fisheries management. This research is posited on the DPSIR (Driver, Pressure, State, Impact, Response) model and employs multidisciplinary methods to investigate the effectiveness of CMT for reef finfish fisheries management. The aims of this thesis are: (1) To investigate the role of markets and subsistence as driving factors for fishing; (2) To investigate fisher spatial allocation of fishing, methods and target taxa (as proxies for pressure and impact); (3) contribute to the biological knowledge of a prominent vulnerable species (Plectropomus leopardus) by investigating aspects of its demography and reproduction (as a proxy for state); and (4) Investigate relationships between the Nggela CMT governance system and modern governance system (as a proxy for response), to improve understanding of how this knowledge may be applied to enhance small-scale fisheries management. The role of markets and subsistence as driving (D) factors for fishing was investigated using the sustainable livelihoods approach (SLA). Ninety three (43 from the western zone and 50 from the eastern zone) household surveys were conducted in 10 (5 from the eastern zone and 5 from the western zone) randomly selected villages in Nggela to determine the contribution of different livelihood activities to fisher livelihoods. The reason for comparing the eastern and western zone was to determine the role of available natural land capital as one contributing factor (besides markets) to fishing drivers. Quantitative data generated from the household surveys were analysed using the statistical package SPSS. Additional key informant interviews to generate qualitative data to support the quantitative data were also conducted. Spatial allocation of fishing and target taxa was investigated using household surveys (the same household survey mentioned above but with questions to address the issue of spatial allocation and fishing methods used), participative fishing with fishers to confirm spatial allocation of fishing and fishing methods employed and recording of landings data to determine the types of fish taxa targeted. One of the initial aims of studies on P. leopardus was to compare the age-based demographic parameters of P. leopardus between CMT areas and offshore sub-tidal areas, the hypothesis being that if CMT was effective agebased demographic parameters would reveal the non vulnerability of P. leopardus in CMT areas. Such a comparison was not possible as only 4 specimens were obtained from inshore CMT areas compared to 116 specimens from offshore sub-tidal reefs. To determine the age-based demographic parameters of Plectropomus leopardus, fish total lengths (mm) and otoliths of fish were collected in the field, this was followed by otolith annuli counts of ages (tagged to a particular fish of certain total length) at the laboratory. A von Bertalanffy growth curve was then fitted to the fish total length data and to the age data to determine asymptotic length, Brody growth coefficient and theoretical age at length zero. Total mortality rate was determined by generating catch curves where the frequency of fish in each age class was regressed against age. Longevity was determined by calculating the mean age of 10% of the oldest individuals. Demographic parameters of P. leopardus in Nggela were also compared to those of Australian locations to determine variations in age-based demography. Data analysis of P. leopardus data was done using the statistical software R and Microsoft Excel 2003. Reproductive aspects of P. leopardus were determined from the fish gonads collected from the field. Fish gonads were used to determine different sexual reproductive stages. Data on the different sexual reproductive stages was used to determine sexual maturity and sex change. The relationship between CMT governance and modern governance and how they may be combined for an effective reef finfish fisheries management was investigated using literature research, key informant interviews and dynamite fisher interviews. Investigations of livelihoods show that Nggela fishers were engaged in more than one livelihood activity for their livelihoods. Subsistence gardening was the most important livelihood activity. While finfish was important for subsistence purposes, accessible markets and the role of middlemen in the villages made it especially important for income generation. A comparison of the role of fishing between eastern and western zone showed that available natural land capital was also an important driver for fishing; fishing was higher in the western zone where there was a narrow natural land capital. Fisher perceptions indicate a declining trend in fisheries resource abundances within CMT areas; such decline has resulted in changes in the spatial allocation of fishing with a shift in fishing to offshore sub tidal reefs. Although some spatial closures were observed, fishing within the CMT areas is flexible. Three MPA’s currently existed in West Nggela and fishing prohibitions within the areas were observed mainly because people thought that the MPA’s were underscored by the government. Line fishing from dugout canoes remains the main method of fishing. Median trophic level of fish catch was between 2 - 3.84 while median standard length of catch was between 19 - 24 cm. Age-based demographic studies show that the Brody growth coefficient of Nggela P. leopardus was 0.13 yr-1, longevity was 12.9 years, maximum age was 15 years and mortality rate was 0.22% yr-1. Female sexual maturity of Nggela P. leopardus began at 2 years of age with 50% sexual maturity achieved at 3.22 years. Sexual transition from female to male began at 3 - 10 years of age with 50% sex change achieved at 11 years. Mature female to male ratio was 3:1. The age-based demographic parameters of P. leopardus in Nggela were similar to those in Swain and Lizard Island in Australia. For Swain reef, growth coefficient was 0.17 yr-1, longevity was 10.1 years, maximum age was 14 years and mortality rate was 0.39% yr-1. For Lizard Island, growth coefficient was 0.26 yr-1, longevity was 7.2 years, maximum age was 10 years and mortality rate was 0.59% yr-1. Age-based demographic parameters of P. leopardus in Nggela were different to locations in Western Australia – Scott and Abrolhos reefs. For Scott reef, growth coefficient was 0.42 yr-1, longevity was 6.4 years, mortality rate was 0.30% yr-1 while the maximum age was 8 years. For Abrohlos reef growth coefficient was 0.08 yr-1, longevity was 13 years, mortality rate was 0.24% yr-1 and maximum age was 18 years. Sea temperature may be one contributing factor to regional variations in age-based demographic parameters. The current CMT governance system has undergone changes which has rendered it ineffective as a coercive force for reef finfish fisheries management. While CMT is recognised by the modern governance system through National legislations, necessary ordinances at the provincial level are absent which prevent the effective use of CMT for fisheries management. For CMT to be effective it requires empowerment at the provincial government level.
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Armstrong, Sharyn G., of Western Sydney Hawkesbury University, and Faculty of Science and Technology. "Chemical analysis of nutritionally important components in temperate Australian fish." THESIS_FST_XXX_Armstrong_S.xml, 1992. http://handle.uws.edu.au:8081/1959.7/505.
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The lipid composition of five species of marine finfish from temperate Australian waters was determined. Claims that the lipids of Australian fish contain high levels of omega-6 fatty acids and arachidonic acid (AA) were investigated. Individual fish were analysed from samples collected at three locations and two seasons, and they were found to have fatty acid compositions of similar nutritional value to those from northern hemisphere temperate waters. Levels of AA, eicosapentaenoic acid and docosahexaenoic acid were also found to be comparable. The variability in fatty acid compositions was greater between samples taken from different locations than from different seasons. Lipid contents and compositions were found to exhibit some species-characteristic nature, indicating a need for accurate species identification. A high-performance liquid chromatographic (HPLC) method for fish identification was developed, which was successful. The application of HPLC to processed fish was investigated and it was found to be suitable for gamma-irradiated and infrared dried fish, but not for those that had been smoked or microwave cooked.Doctor of Philosophy (PhD)
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Ilham. "Supplementation of Organic Selenium to Improve Inclusion Level of Plant-derived Proteins in the Diets of Two Commercially Important Marine Carnivorous Finfish Species." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/59004.
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Effective dietary inclusion levels of plant ingredients for carnivorous marine finfish species are relatively low due to the lack of trace mineral including selenium, and the presence of antinutritional factors such as phytic acid. Dietary supplementation of organic selenium and fermentation of soybean meal and lupin meal with baker’s yeast Saccharomyces cerevisiae resulted in a higher inclusion level of plant-based ingredients after a series of laboratory trials involving yellowtail kingfish and barramundi were conducted.
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Joubert, Casper Jan Hendrik. "The potential of commercial praziquantel formulations as "off label" treatments for diplectanum oliveri (monogenea) infecting cultured argyrosomus species in the South African marine finfish aquaculture industry." Thesis, University of the Western Cape, 2012. http://hdl.handle.net/11394/4048.
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>Magister Scientiae - MScAquaculture is a vast industry all over the world and has increased significantly during the past 30 years. In South Africa, finfish aquaculture farms stretch from Gansbaai to as far as Richards bay with the potential of extending into Mozambique. The future success of this fast growing industry in South Africa strongly relies on the development of the supporting sector such as government legislation, sponsorship, participation of the pharmaceutical industry and research and development in aquatic organism health management. Diplectanum oliveri Williams, 1989, a monogenean gill parasite of both Argyrosomus japonicus (Temminck & Schlegel, 1843) (dusky kob) and A. inodorus Griffiths & Heemstra, 1995 (silver kob) is currently regarded in South Africa as the most persistent ectoparasite associated with the culture of both fish species, causing pathological tissue changes in the areas associated with attachment and feeding which can result in stock losses. The egg production of D. oliveri was used to evaluate and develop a method to quantify monogenean infections on fish, by counting the eggs produced by infra-populations of these parasites over a 24-hour period and to determine the reliability of this method as a non-invasive/non-destructive method to quantify the intensity of an individual infra-population of parasites on a single host. Currently, Diplectanum spp. on dusky kob are being controlled in local mariculture facilities using methods and drugs that are traditionally used for monogeneans (flukes) and are regarded as effective. Most of these drugs are, however, no longer approved for use in food fish and none of them has proven to be very effective in controlling D. oliveri in culture facilities, which can result in subsequent re-infections of epidemic proportion. Currently, there are no anthelmintics registered for aquaculture in South Africa. An registered anthelmintic used in terrestrial animals (sheep, goats, cattle and ostriches) containing praziquantel was tested at various concentrations and exposures against D. oliveri on A. japonicus to determine the efficacy of two different formulations and the potential for "off label" use. The 20 ppm (high) praziquantel concentration treatments eliminated all adult parasites, but caused significant measureable stress and affected the central nervous system of the fish, which resulted in death of all fish in the solution group after 18 hours. The 2 ppm (low) concentrations failed to remove all adult parasites. Although both the 2 hour (short) exposure/high concentration and 24 hour (long) exposure/low concentration of the suspension formulation were effective, but only the short exposure/high concentration eliminated all adult parasites with little change in behaviour by the treated fish.
Books on the topic "Marine finfish"
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Hargrave, Barry T., ed. Environmental Effects of Marine Finfish Aquaculture. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/b12227.
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Laboratory, Canada Dept of Fisheries and Oceans Halifax Fisheries Research. Parasites and diseases of some marine finfish off Nova Scotia. Halifax, N.S: Fisheries Research Branch, Halifax Fisheries Research Laboratory, Dept. of Fisheries and Oceans, Scotia-Fundy Region, 1986.
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Food and Agriculture Organization of the United Nations and General Fisheries Commission for the Mediterranean (Food and Agriculture Organization of the United Nations), eds. Synthesis of Mediterranean marine finfish aquaculture: A marketing and promotion strategy. Rome: Food and Agriculture Organization of the United Nations, 2010.
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Eichenberg, Tim. An assessment of the regulatory framework for finfish aquaculture in marine waters. Portland, Or: National Coastal Resources Research & Development Institute, 1992.
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Spencer, Rosalind. Bacterial disease control, antibiotics and the environment in marine finfish culture: A review. Perth: Scottish Wildlife and Countryside Link, 1993.
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Chang, B. D. Canada-New Brunswick-Nova Scotia new finfish aquaculture species development program: Summary report 1995-2000. St. Andrews, N.B: Biological Station, Fisheries and Oceans Canada, Maritimes Region, Science Branch, Aquaculture Division, 2001.
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Chang, B. D. Canada-New Brunswick-Nova Scotia New Finfish Aquaculture Species Development Program: Summary report, 1995-2000. St. Andrews, N.B: Fisheries and Oceans Canada, Maritimes Region, 2001.
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Bruslé, Jacques. The impact of harmful algal blooms on finfish: Mortality, pathology, and toxicology = impact des toxines algales sur les poissons : mortalité, pathologie, toxicologie. Plouzané, France: Ifremer, 1995.
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Hargrave, Barry T. Environmental Effects of Marine Finfish Aquaculture. Springer, 2005.
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White, Stewart. Marine Finfish Aquaculture and the Environment. Nova Science Publishers, Incorporated, 2015.
Find full textBook chapters on the topic "Marine finfish"
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Rodger, Robin W. A. "Marine Finfish." In Fish Facts, 1–95. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6506-8_1.
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Mayer, Brian K., and Donn R. Ward. "Microbiology of Finfish and Finfish Processing." In Microbiology of Marine Food Products, 3–17. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3926-1_1.
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Nguyen, Thuy T. T., and Sena S. De Silva. "Freshwater finfish biodiversity and conservation: an asian perspective." In Marine, Freshwater, and Wetlands Biodiversity Conservation, 175–200. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-5734-2_13.
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Weirich, Charles R., and Jesse A. Chappell. "Fertilization of Marine Finfish Nursery Ponds for Aquaculture Production." In Aquaculture Pond Fertilization, 259–75. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118329443.ch18.
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Hancock, Boze, and Philine zu Ermgassen. "Enhanced Production of Finfish and Large Crustaceans by Bivalve Reefs." In Goods and Services of Marine Bivalves, 295–312. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96776-9_15.
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Lundebye, Anne-Katrine, Amy L. Lusher, and Michael S. Bank. "Marine Microplastics and Seafood: Implications for Food Security." In Microplastic in the Environment: Pattern and Process, 131–53. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78627-4_5.
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AbstractSeafood is an important food source, and this chapter addresses the food safety concerns related to plastic particles in different seafood. Here we focus on those species which are commonly consumed by humans, such as bivalves, gastropods, cephalopods, echinoderms, crustaceans, and finfish. The objectives of this chapter are to (1) outline the major sources, fate, and transport dynamics of microplastics in marine ecosystems, (2) provide a critical assessment and synthesis of microplastics in seafood taxa commonly consumed by humans, (3) discuss the implications of microplastics with regard to human health risk assessments, and (4) suggest future research priorities and recommendations for assessing microplastics in marine ecosystems in the context of global food security and ocean and human health.
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Lee, Cheng-Sheng. "Marine finfish hatchery technology in the USA — status and future." In Live Food in Aquaculture, 45–54. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2097-7_8.
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Rodriguez, Eduard M., and Kazutsugu Hirayama. "Semi-mass culture of the dinoflagellate Gymnodinium splendens as a live food source for the initial feeding of marine finfish larvae." In Live Food in Aquaculture, 231–35. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2097-7_36.
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Kailasam, M., A. R. Thirunavukkarasu, A. G. Ponniah, S. Selvaraj, and P. Stalin. "Recent Advances in Rotifer Culture and Its Application for Larviculture of Finfishes." In Advances in Marine and Brackishwater Aquaculture, 17–23. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2271-2_2.
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"Major Marine Finfish Species." In Marine and Freshwater Products Handbook, 197–226. CRC Press, 2000. http://dx.doi.org/10.1201/9781482293975-10.
Full textConference papers on the topic "Marine finfish"
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Gansel, Lars C., Per Christian Endresen, Kristine Braaten Steinhovden, Stine Wiborg Dahle, Eirik Svendsen, Silje Forbord, and Østen Jensen. "Drag on Nets Fouled With Blue Mussel (Mytilus Edulis) and Sugar Kelp (Saccharina Latissima) and Parameterization of Fouling." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-62030.
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Biofouling is a serious problem in marine finfish aquaculture with a number of negative impacts. Marine growth obstructs net openings, thereby reducing water exchange through the net and affecting fish welfare and health, as well as the spreading of dissolved nutrients, particles and pathogens. Furthermore, additional water blockage leads to increased hydrodynamic forces on fish cages, which potentially threaten the structural integrity of the fish farm. However, detailed knowledge about the effects of biofouling on the flow past, and the resulting forces on fish cages, is limited and systematic investigations of the effects of different types of fouling have been called for. This study investigates the effects of different amounts and sizes of two important fouling organisms in Norwegian aquaculture, blue mussel (Mytilus edulis) and kelp (Saccharina latissima) on the drag on net panels. Drag forces on a number of clean and fouled nets were measured in a flume tank at a flow speed of 0.1 m/s. Net solidity was calculated from images acquired of all nets in the current. The relationship between net solidity and drag was then found for clean nets and for each type of fouling, and biofouling was parameterized by comparing clean and fouled net results: for a given fouled net, a clean net can be found that experiences the same drag. The latter can then be used in numerical models to estimate the effect of fouling on net drag. That means existing models can be used to model the drag effect of fouling. This study found a solidity increase due to mussel and kelp fouling to affect drag roughly at the same rate as an increase in clean net solidity at a flow speed of 0.1 ms−1 and within the tested fouling size range for two net types. Therefore, existing models, describing the relationship between net solidity and drag, can be used directly or with minor alterations (especially at high solidities) to estimate effects of additional mussel and kelp fouling on drag. In contrast, wet weight seems to be unsuitable as a measure to estimate drag on nets fouled with seaweed or mussels. It should be noted that these findings are only valid under similar conditions, and that other fouling types and sizes, as well as test parameters and tank size can affect the relationship between solidity and drag.