Studies on mass seed production technologies for marine fish and shellfish and their application to stock enhancement

The agrobiological and physico-mechanical properties of leguminous seed plants do not allow them to be harvested without loss exclusively by combine technologies. One way to increase the productivity of the seed production process is to include stationary machines in the assembly technology for wiping and separating seed heaps. Combining these important operations with one machine will further increase the efficiency of legume seed production technologies. This work is devoted to considering ways to increase the efficiency of air-centrifugal separation and dust cleaning seed heaps. A review of recent studies and publications has shown that there is a sufficient methodological basis for determining the parameters of the process of separation of the heap and purification of the exhaust air. An analysis of the publications made it possible to determine the purpose of the research, which is to increase the efficiency of the grater-separation unit by substantiating its scheme and the method of theoretical determination of the parameters of the separation process. According to the results of previous studies, a structural scheme of the grater-separating device is proposed. The main elements of the block are a grater device, which consists of a motionless and movable corrugated discs of the separating device with separate channels for the exit of seeds, straw part of the heap, air. To increase the efficiency of the cleaning process, a blade swirler and a louvre nozzle are placed in the separating device, which provide the air flow with rotational movement around the axis of the cyclone body. In theoretical studies of the motion of particles in a rotational air flow, the simplified assumption was adopted: the particles are spherical, do not deform, and do not interact with each other, the inertia force is directed along the radius of the cyclonic chamber, the tangential and axial components of the particle velocity are equal to the corresponding components of the air velocity, and the particle resistance force determined by the Stokes law, the force of attraction is much less than the centrifugal force, so we neglect it. The obtained formulas allow one to approximately determine the parameters of the cyclone device that will ensure the separation of the seeds of legumes.

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Viral and Bacterial Diseases in Larval and Juvenile Marine Fish and Shellfish: A review.

Fish Pathology ◽

10.3147/jsfp.30.71 ◽

1995 ◽

Vol 30 (1) ◽

pp. 71-85 ◽

Cited By ~ 29

Author(s):

Kiyokuni Muroga

Keyword(s):

Marine Fish ◽

Bacterial Diseases ◽

Fish And Shellfish

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Seed Production Technologies of Some Major Field Crops

Agronomic Crops ◽

10.1007/978-981-32-9151-5_28 ◽

2019 ◽

pp. 655-678

Author(s):

Irfan Afzal ◽

Rubab Shabir ◽

Saeed Rauf

Keyword(s):

Seed Production ◽

Major Field ◽

Field Crops ◽

Production Technologies

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Total and inorganic arsenic in mid-atlantic marine fish and shellfish and implications for fish advisories

Integrated Environmental Assessment and Management ◽

10.1002/ieam.5630020406 ◽

2006 ◽

Vol 2 (4) ◽

pp. 344-354 ◽

Cited By ~ 12

Author(s):

Richard Greene ◽

Eric Crecelius

Keyword(s):

Marine Fish ◽

Inorganic Arsenic ◽

Fish And Shellfish

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Projected impacts of climate change on marine fish and fisheries

ICES Journal of Marine Science ◽

10.1093/icesjms/fst081 ◽

2013 ◽

Vol 70 (5) ◽

pp. 1023-1037 ◽

Cited By ~ 144

Author(s):

Anne B. Hollowed ◽

Manuel Barange ◽

Richard J. Beamish ◽

Keith Brander ◽

Kevern Cochrane ◽

...

Keyword(s):

Climate Change ◽

Marine Fish ◽

Climate Impacts ◽

Skill Assessment ◽

Vital Rates ◽

Marine Research ◽

Research Teams ◽

Research Organizations ◽

Fish And Shellfish ◽

Impacts Of Climate Change

Abstract Hollowed, A. B., Barange, M., Beamish, R., Brander, K., Cochrane, K., Drinkwater, K., Foreman, M., Hare, J., Holt, J., Ito, S-I., Kim, S., King, J., Loeng, H., MacKenzie, B., Mueter, F., Okey, T., Peck, M. A., Radchenko, V., Rice, J., Schirripa, M., Yatsu, A., and Yamanaka, Y. 2013. Projected impacts of climate change on marine fish and fisheries. – ICES Journal of Marine Science, 70: 1023–1037. This paper reviews current literature on the projected effects of climate change on marine fish and shellfish, their fisheries, and fishery-dependent communities throughout the northern hemisphere. The review addresses the following issues: (i) expected impacts on ecosystem productivity and habitat quantity and quality; (ii) impacts of changes in production and habitat on marine fish and shellfish species including effects on the community species composition, spatial distributions, interactions, and vital rates of fish and shellfish; (iii) impacts on fisheries and their associated communities; (iv) implications for food security and associated changes; and (v) uncertainty and modelling skill assessment. Climate change will impact fish and shellfish, their fisheries, and fishery-dependent communities through a complex suite of linked processes. Integrated interdisciplinary research teams are forming in many regions to project these complex responses. National and international marine research organizations serve a key role in the coordination and integration of research to accelerate the production of projections of the effects of climate change on marine ecosystems and to move towards a future where relative impacts by region could be compared on a hemispheric or global level. Eight research foci were identified that will improve the projections of climate impacts on fish, fisheries, and fishery-dependent communities.

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