Готові списки джерел за темами / Molluscan Fisheries

Добірка наукової літератури з теми "Molluscan Fisheries"

Автор: Grafiati

Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Molluscan Fisheries"

Yang, Huiping, Leslie N. Sturmer, and Shirley Baker. "Molluscan Shellfish Aquaculture and Production." EDIS 2016, no. 3 (May 6, 2016): 8. http://dx.doi.org/10.32473/edis-fa191-2016.

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Molluscan shellfish aquaculture provides high quality and high value seafood for human consumption, and shellfish provide environmentally beneficial ecosystem services, such as nutrient extraction and water filtration, to the environment in which they are grown. In the past five decades, global fisheries and aquaculture have grown steadily, and seafood consumption per capita has increased. Molluscan shellfish has traditionally been a major component of world aquaculture. Today, molluscs are cultured in 76 countries. This 8-page fact sheet describes molluscan shellfish aquaculture in the United States and worldwide and outlines molluscan shellfish aquaculture stages and methodologies. Written by Huiping Yang, Leslie N. Sturmer, and Shirley Baker, and published by the UF School of Forest, Fisheries, and Geomatics Sciences, January 2016. FA191/FA191: Molluscan Shellfish Aquaculture and Production (ufl.edu)

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MAGUIRE, GREG B., FRED E. WELLS, and LINDSAY M. JOLL. "SYMPOSIUM ON MOLLUSCAN FISHERIES AND AQUACULTURE." Journal of Shellfish Research 25, no. 1 (April 2006): 137–39. http://dx.doi.org/10.2983/0730-8000(2006)25[137:somfaa]2.0.co;2.

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Rueda, José L., Pablo Marina, Javier Urra, and Carmen Salas. "Changes in the composition and structure of a molluscan assemblage due to eelgrass loss in southern Spain (Alboran Sea)." Journal of the Marine Biological Association of the United Kingdom 89, no. 7 (June 2, 2009): 1319–30. http://dx.doi.org/10.1017/s0025315409000289.

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The composition and structure of a molluscan assemblage was studied in a deep subtidal eelgrass bed located in southern Spain before and after the eelgrass decline experienced during 2005 and 2006 due to illegal trawling by fishermen. Sampling was undertaken in summer 2004 (with eelgrass) and summer 2007 (without eelgrass) in an extensive eelgrass bed located in Cañuelo Bay (12–14 m depth) and in the same area once the eelgrass bed disappeared. Eelgrass was completely absent in those samples of summer 2007 and an increase of the organic content and mud was registered in the sediment between 2004 and 2007. The density and the richness of molluscan species decreased significantly in summer 2007, especially for epifaunal gastropods associated with the leaf and sediment stratum. Some species disappeared completely in summer 2007 such as the dominant periphyton grazersJujubinus striatusandRissoaspp., the egg feederMitrella minorand the seagrass feederSmaragdia viridisas well as the infaunal bivalveSolemya togata. Other species increased their densities such as the carnivoresCylichna crosseiorC. cylindraceaas well as the bivalveNucula nitidosa. Some dominant infaunal species, such asChamelea gallina, Spisula subtruncataorTellina fabuladid not significantly change their densities. The composition and structure of the assemblages in summer 2004 and summer 2007 was significantly different according to the Bray–Curtis similarity index using qualitative and quantitative data and considering the entire assemblage (epifaunal and infaunal species) or only the infaunal species. The registered changes in the molluscan assemblage may have produced cascade effects in higher trophic levels because molluscs generally represent an important food source for some decapods and fish. Urgent conservation measures are needed for protecting the remaining fragmented eelgrass beds of southern Spain from further illegal fisheries activities and other types of human impacts (e.g. sand extraction and coastal infrastructures), because they support the most diverse faunistic communities for eelgrass beds in Europe due to their bathymetry and geographical location.

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Thain, J. E., and M. J. Waldock. "The Impact of Tributyl Tin (TBT) Antifouling Paints on Molluscan Fisheries." Water Science and Technology 18, no. 4-5 (April 1, 1986): 193–202. http://dx.doi.org/10.2166/wst.1986.0195.

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Laboratory and field experiments carried out during 1982–84 confirmed that some UK estuaries contained sufficient organotin compounds to cause reduced meat yields and shell thickening in the Pacific oyster, Crassostrea gigas. Historically the European flat oyster, Ostrea edulis, has been the basis of an important fishery on the east coast of England but the population has recently declined to an all-time low. Laboratory experiments have been carried out to compare larval survival, growth of spat and the development of gametes in adult O. edulis, and the growth of spat of four other bivalve species in the presence and absence of organotin toxins. The results from these experiments are discussed in relation to the concentrations of organotin compounds in samples of water and oyster tissues, from several sites in the UK, and the reproductive behaviour of adult oysters from natural stocks in the Crouch/Roach estuary system. The data strongly suggest that TBT is at least a contributory factor and probably a major cause of the failure in recent years of O. edulis to reproduce naturally in the Crouch Estuary. The UK Government has proposed legislation to control and reduce organotin emissions into the marine environment and this is briefly outlined.

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MALAQUIAS, M. A. E., L. BENTES, K. ERZINI, and T. C. BORGES. "Molluscan diversity caught by trawling fisheries: a case study in southern Portugal." Fisheries Management and Ecology 13, no. 1 (February 2006): 39–45. http://dx.doi.org/10.1111/j.1365-2400.2006.00474.x.

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Sreekanth, G. B., P. Rivonkar, T. S. Mayekar, A. Giriyan, F. D'souza, S. Dourado, B. Ingole, and E. B. Chakurkar. "Inventory of fishery resources using participatory research approach in Mandovi Estuary in Central western coast of India." Journal of Environmental Biology 42, no. 5 (September 27, 2021): 1257–63. http://dx.doi.org/10.22438/jeb/42/5/mrn-1646.

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Aim: The fisheries resources of Mandovi Estuary, along the central west coast of India were analysed for taxonomic, functional, feeding and population aspects and also to record and prepare an inventory on fish and shellfish species. Methodology: Finfish and shellfish taxa were monitored for four years (2016 to 2020) through surveys in small and regional markets, fishermen surveys, fishing gear samplings, telephonic interviews and photographs. Results: A total of 318 taxa are counted comprising of 169 (53.1%) demersal, 71 (22.3%) pelagic fish, 37 (11.6%), molluscan and 41 (12.9%) crustacean species. The community was dominated by marine immigrants and the freshwater types contributed least to the composition. In the inventory, majority of the resources were of commercial value and this category contributed 70% of total documented species. Even though detailed analyses were required, nearly 2% of the fauna appeared to be endemic to the region. Further, more than 30% species listed were data deficient. Out of 318 species, 10% were unknown in the Mandovi estuary. Interpretation: This data set comprehensively documents the finfish and shellfish diversity of Mandovi estuary from 2016 to 2020. The type of fish assemblage is briefly discussed focusing on the management of these resources in the estuary.

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Spanier, Ehud, Kari L. Lavalli, Jason S. Goldstein, Johan C. Groeneveld, Gareth L. Jordaan, Clive M. Jones, Bruce F. Phillips, et al. "A concise review of lobster utilization by worldwide human populations from prehistory to the modern era." ICES Journal of Marine Science 72, suppl_1 (May 7, 2015): i7—i21. http://dx.doi.org/10.1093/icesjms/fsv066.

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Abstract Lobsters are important resources throughout the world's oceans, providing food security, employment, and a trading commodity. Whereas marine biologists generally focus on modern impacts of fisheries, here we explore the deep history of lobster exploitation by prehistorical humans and ancient civilizations, through the first half of the 20th century. Evidence of lobster use comprises midden remains, artwork, artefacts, writings about lobsters, and written sources describing the fishing practices of indigenous peoples. Evidence from archaeological dig sites is potentially biased because lobster shells are relatively thin and easily degraded in most midden soils; in some cases, they may have been used as fertilizer for crops instead of being dumped in middens. Lobsters were a valuable food and economic resource for early coastal peoples, and ancient Greek and Roman Mediterranean civilizations amassed considerable knowledge of their biology and fisheries. Before European contact, lobsters were utilized by indigenous societies in the Americas, southern Africa, Australia, and New Zealand at seemingly sustainable levels, even while other fish and molluscan species may have been overfished. All written records suggest that coastal lobster populations were dense, even in the presence of abundant and large groundfish predators, and that lobsters were much larger than at present. Lobsters gained a reputation as “food for the poor” in 17th and 18th century Europe and parts of North America, but became a fashionable seafood commodity during the mid-19th century. High demand led to intensified fishing effort with improved fishing gear and boats, and advances in preservation and long-distance transport. By the early 20th century, coastal stocks were overfished in many places and average lobster size was significantly reduced. With overfishing came attempts to regulate fisheries, which have varied over time and have met with limited success.

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Smolowitz, Ronald. "Sea Scallop Harvest Gear: Engineering for Sustainability." Marine Technology Society Journal 40, no. 3 (September 1, 2006): 25–31. http://dx.doi.org/10.4031/002533206787353268.

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The Atlantic sea scallop is the most important molluscan shellfish species commercially harvested in the United States. The species is sought for the large, white circular adductor muscle (the 'meat') that holds the two valves of the animal together. In North America, the 'meat' is generally the only part of the scallop that is landed and eaten, although the meat only accounts for about a third of the animal's visceral weight. In 2004, U.S. landings of sea scallop meats totaled 29,374 metric tons. The value of the U.S. scallop harvest in 2004 ($321 million) was only exceeded by crabs ($447 million), shrimp ($425 million), and lobster ($344 million). Harvesting problems in the wild capture scallop fishery have a long history of being addressed with technical gear-related solutions. Recent advances include larger rings and twine tops, turtle chain mats, and changes to the drag frame. Management strategies and gear design must work together for sustainable fisheries.

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Castell, John. "Farming the waters: Bringing aquatic plant and animal species to agriculture." Canadian Journal of Animal Science 80, no. 2 (June 1, 2000): 235–43. http://dx.doi.org/10.4141/a99-102.

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Aquaculture has a long history, with carp culture in Asia starting before 2000 BC and oyster culture in the Roman Empire before the time of Julius Caesar. However, it is clearly the past 40 yr that have seen the most dramatic expansion of aquaculture. The world's population now exceeds 6 billion people and is still growing at an alarming rate. The world's wild fish harvest has clearly peaked at or above the maximum sustainable yield of about 90 million t. Many fish stocks are suffering from over-fishing and there is little hope of any increase in the capture fisheries production. Though modern agricultural practices have been very efficient at increasing the per acre yields, the world is experiencing an alarmingly steady decrease in the amount of agricultural land devoted to food production. In the past 20–30 yr production of fish, molluscs, crustaceans and aquatic plants (aquaculture) has become an increasingly important means of producing food, and in some countries aquaculture production accounts for more than half of the total fishery harvest and is even as high as 90% in a few countries. I have reviewed the historical growth of aquaculture, compared the product value in various countries and reviewed aquaculture practices for a number of plant, molluscan, crustacean and fish species around the world. These culture technologies were compared and contrasted with agricultural practices. Finally, some predictions for the future of aquaculture development in Canada and the world have been made. Key words: Canadian aquaculture, history, salmon, fish farming, production statistics, fish culture technology

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Kim, Mi Ae, Kesavan Markkandan, Na-Young Han, Jong-Moon Park, Jung Sick Lee, Hookeun Lee, and Young Chang Sohn. "Neural Ganglia Transcriptome and Peptidome Associated with Sexual Maturation in Female Pacific Abalone (Haliotis discus hannai)." Genes 10, no. 4 (April 2, 2019): 268. http://dx.doi.org/10.3390/genes10040268.

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Genetic information of reproduction and growth is essential for sustainable molluscan fisheries and aquaculture management. However, there is limited knowledge regarding the reproductive activity of the commercially important Pacific abalone Haliotis discus hannai. We performed de novo transcriptome sequencing of the ganglia in sexually immature and mature female Pacific abalone to better understand the sexual maturation process and the underlying molecular mechanisms. Of the ~305 million high-quality clean reads, 76,684 transcripts were de novo-assembled with an average length of 741 bp, 28.54% of which were annotated and classified according to Gene Ontology terms. There were 256 differentially expressed genes between the immature and mature abalone. Tandem mass spectrometry analysis, as compared to the predicted-peptide database of abalone ganglia transcriptome unigenes, identified 42 neuropeptide precursors, including 29 validated by peptidomic analyses. Label-free quantification revealed differential occurrences of 18 neuropeptide families between immature and mature abalone, including achatin, FMRFamide, crustacean cardioactive peptide, and pedal peptide A and B that were significantly more frequent at the mature stage. These results represent the first significant contribution to both maturation-related transcriptomic and peptidomic resources of the Pacific abalone ganglia and provide insight into the roles of various neuropeptides in reproductive regulation in marine gastropods.

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Дисертації з теми "Molluscan Fisheries"

Mercado, Vanessa Tais Cruz. "Análise socioambiental dos pescadores de lulas (Mollusca: Cephalopoda) na região de São Sebastião, Estado de São Paulo." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/21/21134/tde-03082017-095947/.

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O objetivo deste estudo foi obter um diagnóstico socioambiental incluindo aspectos do etnoconhecimento dos pescadores de São Sebastião e Ilhabela (litoral norte de SP) associado à pesca de lula. Para o estudo, foram selecionados sete pontos no município de São Sebastião e dois pontos em Ilhabela. Para obtenção de dados, foi aplicado um questionário semiestruturado, contendo perguntas sobre condições socioeconômicas, infraestrutura comunitária e individual, etnoconhecimento, custos da pesca e primeira comercialização, assim como a origem da arte de pesca. As respostas foram divididas em dados qualitativos e quantitativos. Posteriormente, os dados qualitativos foram pontuados como dados quantitativos para a análise de correlação não paramétrica e de agrupamento. Aspectos históricos sobre o surgimento do zangarilho foram também explorados. Os resultados apontaram que: 1) a pesca da lula tem importância econômica, pois representa um aumento na renda do pescador; 2) não houve nenhuma correlação entre o rendimento com a pesca de lula e condições sociais ou infraestruturais; 3) a maioria dos pescadores tem idade entre 41-50 anos e, quanto ao nível escolar, a maioria possui o 10 grau incompleto e a maior parte tem emprego para complementar a renda; 4) a maior parte dos pescadores obtém em média entre R$800,00 e R$4000,00, com um ganho significativo nos meses de verão; 5) em relação à infraestrutura comunitária, foi verificada carência de acesso a escolas e hospitais; 6) a maioria dos entrevistados possui residência em São Sebastião, sendo a maior parte delas de alvenaria e com fornecimento de energia elétrica deficiente em praias mais afastadas; 7) a maioria dos pescadores considera a pesca da lula lucrativa; 8) quanto à comercialização, os melhores rendimentos são obtidos quando a venda é feita diretamente para o consumidor; 9) em termos históricos, a pesca da lula não é somente passada de pai para filho, mas também passada entre eles e amigos, tornando possível dizer que constitui um processo cultural; 10) o etnoconhecimento em relação à lula demonstrou ser significativo no que diz respeito à época de ocorrência, locais onde há fêmeas com ovas, conhecimento sobre a reprodução, sobre seus hábitos alimentares e teia alimentar. Os resultados obtidos a partir dessa pesquisa podem servir para um futuro plano de manejo.
The aim of this study was to carry out a socio environmental diagnosis which included the ethnoknowledge aspects of the fishermen from San Sebastian and Ilhabela regarding the squid fishery. We selected seven points in San Sebastian and two in Ilhabela. To obtain the data, we applied a semi-structured questionnaire covering the socioeconomic, regional infrastructure, squid sales and values, origin of the fishing skills and ethnoknowledge. The responses were initially split in qualitative and quantitative data. Afterwards, the qualitative data were scored as in quantitative parameters for cluster and non parametric correlation analysis. Historical aspects regarding the emergence of the squid jig (zangarilho) were also explored. The results showed that: 1) the squid fishery is economically important because it represents an increase to the fisherman\'s income; 2) there was no correlation between the squid fishery income and social and local infrastructure conditions 3) the majority of the fishermen community is composed of: men who are 41-50 years old; have incomplete high school degree; and work to supplement income; 4) most of the fishermen earning is about R$ 800 and R$ 4,000 with a major income in the summer; 5) the community infrastructure shows a significant lack of schools and hospitals facilities; 6) most of the fishermen live in San Sebastian, in masonry houses, and have problems regarding the electricity supply in remote beaches; 7) most of the fishermen consider squid fishing a lucrative activity; 8) the best yields are obtained when the squid is sold directly to the consumer; 9) historically, the squid fishing is handed down from father to son and among friends, which characterizes a cultural process; 10) the squid fishery ethnoknowledge shown to be significant concerning the occurrence period, places where females can be found, knowledge about feeding habits, reproduction and food web. The results obtained from this research may be useful for a future management plan.

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Aird, Samantha Jayne. "Socio-ecological dynamics in mollusc fisheries: a case study from the Keppel Bay Islands, Great Barrier Reef, Australia." Thesis, 2020. https://researchonline.jcu.edu.au/75596/1/JCU_75596_Aird_2021_thesis.pdf.

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Samantha Aird investigated the dynamics in the use of molluscs by the Woppaburra People over a 5000-year period. High-resolution datasets and Woppaburra traditional ecological knowledge identified the sustained seasonal use of a gastropod species – the Moon Turban. Results are being used to improve fisheries and cultural heritage management.

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Grubert, MA. "Factors influencing the reproductive development and early life history of blacklip (Haliotis rubra) and greenlip (H. laevigata) abalone." Thesis, 2005. https://eprints.utas.edu.au/276/1/01Front.pdf.

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A study was initiated to determine the effect of selected factors on the reproductive development and early life history of blacklip (Haliotis rubra) and greenlip (H. laevigata) abalone relevant to their wild fisheries or aquaculture. In both species, the rate of gonadal and larval development was proportional to water temperature, but the relationship was not simply multiplicative, rather there was a critical minimum water temperature below which development was arrested, known as the Biological Zero Point (BZP). The BZP for gonadal development was 7.8 degrees C for H. rubra and 6.9 degrees C for H. laevigata. Corresponding BZP values for larval development were 7.8 degrees C and 7.2 degrees C, respectively. Observations of larval development relative to temperature enabled a description of the Effective Accumulative Temperature (EAT; the cumulative difference between the culture temperature and the BZP, calculated hourly) for prominent developmental stages. The difference between the EAT for metamorphic competence and that for hatchout (i.e. the interval during which the larvae remain in the water column) was 1120 and 1160 EAT degrees C-h for blacklip and greenlip abalone, respectively. These values, in combination with water temperature data, enable the prediction of the dispersal window for each species in situ. Spawning performance of blacklip and greenlip abalone was also affected by temperature, with both sexes of each species producing significantly more gametes when conditioned at 16 degrees C than 18 degrees C. Sperm production of H. rubra was an order of magnitude greater than that of equivalent sized H. laevigata. There was no apparent difference in the lipid or fatty acid composition of the ovary or testis between pre- and post-spawning animals of either species, presumably because of partial spawning and/or incomplete resorption of the gonad. Likewise, a 4 degrees C difference in conditioning temperature (i.e. 14 degrees C vs 18 degrees C) was insufficient to elicit changes in tissue biochemistry. There was a significant interaction between sperm density and contact time on the fertilisation success of eggs from both blacklip and greenlip abalone. Prolonged exposure (> 1200 s for H. rubra and > 480 s for H. laevigata) to concentrated sperm (i.e. 107 ml-1) resulted in egg destruction. Analysis of CoVariance of F50 values (i.e. the sperm concentration required for 50% fertilisation, derived from the linear regression of logit (proportion of eggs fertilised) versus sperm density) between species across a range of contact times demonstrated that contact time had a significant effect (p < 0.001) whereas species did not (p = 0.22). The lack of a species effect suggests that the fertilisation potential of blacklip and greenlip abalone eggs are similar, at least across the range of sperm densities and contact times used.

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Книги з теми "Molluscan Fisheries"

Narasimham, K. A. Molluscan fisheries of India. Delhi: B. R. Pub. Corp., 2005.

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Steven, Otwell W., Rodrick Gary Eugene 1943-, Martin Roy E, and International Molluscan Shellfish Depuration Conference (1st : 1989 : Orlando, Fla.), eds. Molluscan shellfish depuration. Boca Raton, Fla: CRC Press, 1991.

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National Shellfish Sanitation Program (U.S.). National Shellfish Sanitation Program guide for the control of molluscan shellfish. [Washington, D.C.?]: U.S. Dept. of Health and Human Services, Public Health Service, Food and Drug Administration, 1997.

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1931-, MacKenzie Clyde L., and United States, National Marine Fisheries Service., eds. The history, present condition, and future of the molluscan fisheries of North and Central America and Europe. Seattle, Wash: U.S. Dept. of Commerce, National Oceabuc and Atmospheric Administration, National Marine Fisheries Service, 1997.

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author, Goldberg Ronald 1952, and Northeast Fisheries Science Center (U.S.), eds. Review of the ecological effects of dredging in the cultivation and harvest of molluscan shellfish. Milford, Connecticut: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Science Center, 2011.

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E, Shumway Sandra, Kraeuter John N. 1942-, and United States. Dept. of Commerce., eds. Molluscan shellfish research and management: Charting a course for the future : final proceedings from the workshop, Charleston, South Carolina, January 2000. [United States]: United States of America, Dept. of Commerce, 2000.

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E, Shumway Sandra, Kraeuter John N. 1942-, and United States. National Oceanic and Atmospheric Administration, eds. Molluscan shellfish research and management: Charting a course for the future : final proceedings from the workshop, Charleston, South Carolina, January 2000. [Washington, D.C: National Oceanic and Atmospheric Administration, 2003.

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Virginia Institute of Marine Science. Strategic plan for molluscan shellfish research, including a rational plan for testing application of non-native oyster species: Report of the Virginia Institute of Marine Science to the governor and the General Assembly of Virginia. Richmond: Commonwealth of Virginia, 1996.

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L, MacKenzie Clyde, ed. The history, present condition, and future of the molluscan fisheries of North and Central America and Europe.: Pacific coast and supplemental topics. Seattle, Wash: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Scientific Publications Office, 1997.

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F, Ganong William. The economic mollusca of Acadia. [Saint John, N.B.?: s.n.], 1993.

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Частини книг з теми "Molluscan Fisheries"

Kennedy, V. S. "Molluskan Fisheries." In Encyclopedia of Ocean Sciences, 1830–41. Elsevier, 2001. http://dx.doi.org/10.1006/rwos.2001.0454.

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Kennedy, Victor S. "Molluskan Fisheries." In Encyclopedia of Ocean Sciences, 441–48. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-409548-9.04233-0.

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Kennedy, V. S. "Molluskan Fisheries." In Encyclopedia of Ocean Sciences, 899–909. Elsevier, 2001. http://dx.doi.org/10.1016/b978-012374473-9.00454-9.

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"Fisheries and management of natural populations." In Marine Bivalve Molluscs, 270–324. Chichester, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781119045212.ch8.

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Serb, Jeanne M. "Reconciling Morphological and Molecular Approaches in Developing a Phylogeny for the Pectinidae (Mollusca: Bivalvia)." In Scallops - Biology, Ecology, Aquaculture, and Fisheries, 1–29. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-444-62710-0.00001-8.

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Kerton, Francesca M. "Ocean Resources for the Production of Renewable Chemicals and Materials." In Chemical Processes for a Sustainable Future, 443–58. The Royal Society of Chemistry, 2014. http://dx.doi.org/10.1039/bk9781849739757-00443.

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This chapter describes the use of ocean- or marine-sourced biomass for the production of renewable materials and chemicals. Algae and waste from the fisheries can be used to provide a range of chemicals including biopolymers (carbohydrates), pigments, proteins (and amino acids), lipids and minerals. This chapter highlights the use of algae to produce phycocolloids (carrageenans, agarose and alginates), waste crustacean shells to produce chitin, chitosan and related small molecules, and waste mollusc shells to produce biorenewable calcium carbonate. In many cases, green chemistry and engineering approaches are employed. Examples include the use of catalysts (both chemical and bio-catalysts) and the use of alternative solvents (water, supercritical fluids and ionic liquids). Furthermore, consideration of the overall sustainability of current fishing and aquaculture practices is encouraged and the use of by-products for adding commercial viability to this sector of the economy is outlined.

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