Relevant bibliographies by topics / Hatchery management

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  2. Dissertations / Theses
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Academic literature on the topic 'Hatchery management'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Hatchery management"

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Hartati, Hartati, Jayadi Jayadi, and Andi Tamsil. "EVALUASI PENERAPAN MANAJEMEN CARA PEMBENIHAN IKAN YANG BAIK (CPIB) PADA UNIT PEMBENIHAN UDANG DINAS KELAUTAN DAN PERIKANAN PROVINSI SULAWESI SELATAN DI BOJO KABUPATEN BARRU." JOURNAL OF INDONESIAN TROPICAL FISHERIES (JOINT-FISH) : Jurnal Akuakultur, Teknologi Dan Manajemen Perikanan Tangkap, Ilmu Kelautan 2, no. 2 (December 29, 2019): 206–15. http://dx.doi.org/10.33096/joint-fish.v2i2.54.

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Evaluation of the implementation of good management of fish hatchery (CPIB) at the shrimp hatchery unit of the Departmen of marine and fishery in south Sulawesi province in Bojo, Barru regensy. This research was conducted in February 2019 until April 2019 at the shrimp hatchery until of the Departmen of Marine and Fisheries in south Sulawesi in Bojo, Barru regency. The hatchery unit is a barometer of other shrimp hatcheries in Barru regency in particular and those in South Sulawesi province in general. Based on the results of research using the analysis method (t test) and linear regression shows that the implementation of good management of fish hatchery (CPIB) has an excellent effect on shrimp seed production and internal management factors that affect almost 70% of successful seed production are water quality management, master management, feed management, larvae management and personnel management and the remaining around 30% of production is influenced by external factors such as environment and others. To increase the production of shrimp seed in hatchery units, is it necessary to seek for adjustments and performance enhancements and still be giuded by the method of good hatchery (CPIB) in implementing the 5 production management steps as internal factors greatly determine the success level of seed production both in quantity and quality. Keyword : Shrimp hatchery, regulation, implementation, managemen CPIB
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Stefansson, Sigurd O. "Fish Hatchery Management, Second Edition." Fish and Fisheries 4, no. 4 (December 2003): 372–73. http://dx.doi.org/10.1046/j.1467-2979.2003.0139b.x.

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Phelps, Ronald P. "Recent advances in fish hatchery management." Revista Brasileira de Zootecnia 39, suppl spe (July 2010): 95–101. http://dx.doi.org/10.1590/s1516-35982010001300011.

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The advancement of aquaculture has often been bottlenecked because of the lack of seed, but once that bottleneck was overcome there was rapid growth. Recent examples of advances in hatchery technology leading to increased production are sea bream and Pangasius. Three areas contributing to the advancement of hatchery management are: brood stock management, induced spawning and larval feeding. Formulated diets have been developed for marine brood fish that are equal or better than the traditional raw fish diets. The importance of lipids and their composition in brood fish diets, particularly n-3 HUFAs has received much attention. The lipid composition of the brood diet is reflected in egg composition and egg quality. Protein quantity and quality in brood diets also impacts reproductive success and egg quality. The use of Gonadotropin-releasing hormone agonists (GnRHa) given as an injection or a slow release implant for induced spawning is becoming more widely used. The addition of dopamine antagonists with GnRHa may not be necessary to successfully induce spawn some species of fish. The use of GnRHa can advance the maturation of oocytes allowing such fish to be successfully induced spawned. Significant advances have been made in the development of formulated microdiets for larval fish. Such microdiets have been used successfully with young larvae reducing the need for live foods such as artemia. The quality of both live foods and formulated diets has been enriched with the use of fatty acids. Not only the quantity of n-3 HUFAs added to a diet impacts larval growth and survival but the ratios of specific n-3 HUFAs has an impact. Enrichment of live foods with amino acids can also improve larval fish growth and survival.
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Lazarov, Iliqn, Georgi Zhelev, Mihni Lytzkanov, Koycho Koev, and Vladimir Petrov. "Dynamics of microbial contamination in a poultry hatchery." Archives of Veterinary Medicine 11, no. 1 (September 16, 2018): 37–44. http://dx.doi.org/10.46784/e-avm.v11i1.15.

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The hatcheries may become contaminated with pathogenic bacteria which could spread in the hatchery through the air. That is why the implementation of an effective cleaning and disinfection program and the maintenance of good hygiene are extremely important for the normal course of production and for reducing the spread of infectious agents. In this study, data on the degree and dynamics of bacterial contamination in a poultry hatchery are presented. In the incubation sector, bacterial contamination on the surfaces was found to be low-level ranging from 0.25 to 4.43x101 CFU/ cm2 but in the air it was strongly influenced by the hatching. In the hatchery sector, bacterial contamination on the surface and in the air was high, with the highest values found on the egg shells (1.77x106 CFU/cm2), on the floor (3.2x104 CFU/cm2) and in the air (1.77x105 CFU/cm3) of hatcher cabinets during hatching. The results obtained show that the most important source of microbial contamination in the hatchery is the hatchery sector, especially during hatching, when highly contaminated materials as fluff, shells and dried secretions are released. In case of poor organization of working process, the bacteria could spread by air and contaminate the other sectors of the hatchery. The study confirms the importance of a different approach in the development of preventive measures, depending on the degree of risk in different zones in the hatchery, which is the basis for the effective management practice aimed at decreasing microbiological hazards in hatcheries.
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MORI, KOH-ICHIRO, and KEIICHI MUSHIAKE. "Control of hatchery diseases by broodstock management." NIPPON SUISAN GAKKAISHI 72, no. 2 (2006): 246–49. http://dx.doi.org/10.2331/suisan.72.246.

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Kasai, Hisae, and Jun Nagata. "Hygiene Practices for Aquaculture and Hatchery Management." Fish Pathology 55, no. 4 (January 15, 2021): 111–16. http://dx.doi.org/10.3147/jsfp.55.111.

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Rahman, Md Habibur, Md Anisur Rahman, Md Mer Mosharraf Hossain, Syeda Maksuda Yeasmin, and Abdulla Al Asif. "Effect of feeding management of broodstock on breeding performance of bata (Labeo bata)." Asian Journal of Medical and Biological Research 1, no. 3 (February 23, 2016): 553–68. http://dx.doi.org/10.3329/ajmbr.v1i3.26479.

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Labeo bata is one of the important minor carps in Bangladesh with great demand as good table fish. The study was conducted to observe the breeding performance at different management practices in Mafatema, Rupali, Modhumoti and Anan fish hatchery and disinfection treatments of water, eggs and fry in Jessore, Bangladesh during 10 March 2014 to 15 May 2015. An improvement in broodstock nutrition and feeding has been shown to greatly improve seed production. Protein and lipid percentage of broodstock diet have been identified as major dietary factors. Protein level was 24.77%, 23.47%, 18.08%, 17.78% and lipid level was 11.07%, 9.50%, 7.74%, 8.14% in Mafatema, Rupali, Modhumoti and Anan fish hatchery respectively. Three concentrations of four chemical-formalin (10, 20, 30 mg/L), malachite green (1, 3, 5 mg/L), NaCl (1, 2, 3 g/L) and methylene blue ( 1, 3, 5 mg/L) treatment regimes and a control were compared for efficacy in treating L. bata eggs to prevent fungus and bacterial infection and improve hatch and survival rate of fry. Highest correlation value between absolute fecundity and body weight (r=.938, p<.05) and total length (r=.891, p<.05) and gonadosomatic index (26.2%) were found in Mafatema fish hatchery among four experimental hatcheries at 24.77% protein and 11.07% lipid level. Better fertilization rate (84.2±5.17%) and hatching rate (82.0±4.30%) were found in Mafatema and Rupali fish hatchery respectively that has significant difference (P<0.05) from that of Modhumoti and Anan fish hatchery at higher protein and lipid level. Lowest deformity rate (6.05+2.65) was observed in Mafatema fish hatchery that was significantly different (P<0.05) from that of Modhumoti fish hatchery. In case of disinfection treatment, methylene blue at 1mg/L bath treatment daily for 4 days showed significantly higher hatching rate (92.33±3.51%) and survival rate (94.33±4.73%).Asian J. Med. Biol. Res. December 2015, 1(3): 553-568
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Anderson, Richard. "New Approaches for Management of Fertilized Hatchery Ponds." Journal of Applied Aquaculture 2, no. 3-4 (January 18, 1994): 1–8. http://dx.doi.org/10.1300/j028v02n03_01.

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Hayes, Michael C., Reginald R. Reisenbichler, Stephen P. Rubin, Deanne C. Drake, Karl D. Stenberg, and Sewall F. Young. "Effectiveness of an integrated hatchery program: can genetic-based performance differences between hatchery and wild Chinook salmon be avoided?" Canadian Journal of Fisheries and Aquatic Sciences 70, no. 2 (February 2013): 147–58. http://dx.doi.org/10.1139/cjfas-2012-0138.

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Performance of wild (W) and hatchery (H) spring Chinook salmon (Oncorhynchus tshawytscha) was evaluated for a sixth generation hatchery program. Management techniques to minimize genetic divergence from the wild stock included regular use of wild broodstock and volitional releases of juveniles. Performance of HH, WW, and HW (hatchery female spawned with wild male) crosses was compared in hatchery and stream environments. The WW juveniles emigrated from the hatchery at two to three times the rate of HH fish in the fall (HW intermediate) and 35% more HH than WW adults returned (27% more HW than WW adults). Performance in the stream did not differ statistically between HH and WW fish, but outmigrants (38% WW, 30% HW, and 32% HH fish) during the first 39 days of the 16-month sampling period composed 74% of total outmigrants. Differences among hatchery-reared crosses were partially due to additive genetic effects, were consistent with domestication (increased fitness for the hatchery population in the hatchery program), and suggested that selection against fall emigration from the hatchery was a possible mechanism of domestication.
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Digun-Aweto, Oghenetejiri, and Ademuyiwa Hafiz Oladele. "Awareness of Improved Hatchery Management Practices among Fish Farmers in Lagos State." Agricultura Tropica et Subtropica 50, no. 1 (March 1, 2017): 19–25. http://dx.doi.org/10.1515/ats-2017-0003.

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Abstract During the last decade, hatchery infrastructure and table fish production systems have been exclusively targeted towards catfish production in Nigeria. These efforts have not translated to sufficient domestic fish production. The shortfall in demand for fish fry and fingerlings by growing population of fish farms in Lagos State confirms the fish seed production deficiency. This study investigated the level of awareness of improved hatchery management practices among fish farmers in Lagos State. Using simple random sampling method, 150 fish farmers from 12 local government areas of Lagos State were selected and interviewed using a structured questionnaire. The majority of the respondents were male (68 %) and married (76.6 %), with dominant age range of 41–50 years (55.3 %) and a farming experience of 5–10 years (68 %). Personal saving (46.7 %) and cooperative societies (31.3 %) were the respondents’ main sources of fund and fortnight visits by extension agent was of commonest frequency (86 %). Extension agents and research institutes ranked first and second, respectively, among the sources of information, and accounted for the main sources of information to the farmers. The farmers either strongly agreed or agreed on almost all the hatchery management practices, while they expressed their need for advisory and input support services from government and non-governmental organizations. The significant relationship which exists between age and marital status, and farmers’ awareness shows that greater communication of improved hatchery management practices will lead to adoption, thereby increasing the output of the farmers. Improved hatchery output will lead to greater availability of fish seeds for table size production as well as greater income to the fish farmers. In addition to more intensive extension efforts, other channels of information notably mass media should be revitalized in delivering improved management practices to the fish farmers.
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Dissertations / Theses on the topic "Hatchery management"

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MacNiven, Angus M. "A strategy towards improved fish hatchery management in Northeast Thailand." Thesis, University of Stirling, 2005. http://hdl.handle.net/1893/187.

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This report addresses the problem: how to improve approaches to fish seed production in smallholder aquaculture systems of Northeast Thailand? The work was carried out as a component of the U.K. Government Department for International Development Aquaculture Research Programme funded project, R7052: Improving freshwater fish seed supply and performance in smallholder aquaculture systems in Asia. From 1997 to 2003 the project worked in collaboration with regional partners in Bangladesh, Laos P.D.R., Thailand and Vietnam on constraints to seed production and distribution. The research problem called for improvement, implying that change was required in the way that seed was produced. The hypothesis that active collaboration in research by seed producers and institutional partners, facilitated by project staff would enable all participants to extend their understanding of the situation, contribute to the knowledge base and that resulting accommodations would lead to a continuous process of planning, action and reflection toward changes required for improvement. Reflection on the project outputs indicated that quality of fish seed was variable but there was no agreement on the nature of the problem among stakeholders. The decision was made to shift the research focus away from looking for technical problems and to focus instead on examining ways that existing knowledge could be integrated in a learning process with key stakeholders. The research problem then became to find an appropriate, effective and efficient methodology to achieve this; participatory action research was chosen for evaluation. Participatory action research is a collaborative approach involving the researcher in a facilitative role working with stakeholder groups to enable systematic investigation of issues, planning and action to resolve the issues. Outcomes should be action and public knowledge that feed in to further reflection and action in an ongoing learning cycle. Implementation of the methodology was carried out over two stages; the first planned set of activities involved extension of the existing collaborative arrangement with the Thai Government Department of Fisheries (DoF) and the Asian Institute of Technology Aqua Outreach Programme (AOP) in order to prepare a field research team and plan for field activities. The second stage was participatory action research field work which involved invitations to collaborate being extended to four formal groups and one informal group of hatchery operators in two Provinces of Northeast Thailand. Research facilitated by the research team used a range of participatory methods for identification and prioritisation issues, analysis, action planning, monitoring and evaluation. Actions were supported by the project logistically and financially. The exploratory approach to project planning meant that monitoring processes was as important as monitoring specific indicators. The output of the first set of activities was a formal agreement to collaborate however the strength of the collaboration was indicated by the low level of commitment shown by the DoF and AOP representatives in planning and team building. The lack of commitment had important implications for impact and sustainability of the research. Greater attention to the partnership process was an important lesson. Four of the hatchery operators’ groups approached accepted the invitation to collaborate with the project. This collaboration resulted in a range of knowledge outcomes, the development of social relations horizontally within the hatchery groups and vertically to include individuals from service providing agencies in the local administration. Participatory evaluation by participants and the DoF partners was positive. Evaluation of the project indicated that the approach was; appropriate in terms of the needs of primary stakeholders, the requirements of the donor and the circumstances under which it was carried out; effective in achieving knowledge outcomes that contributed to gains in livelihood assets for participants but ineffective in influencing the policies, institutions and processes that would have ensured sustainable impact from the collaboration as a result of the shortcomings in the institutional partnership arrangements; efficient in terms of resource use to obtain outputs and also in emergence of lessons to inform future practice.
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Herlin, Marine Claire Ghislaine. "Genetic management of Atlantic cod (Gadus morhua L.) hatchery populations." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/421.

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Intensive aquaculture of Atlantic cod is fast developing in both Northern Europe and Canada. The last six years have seen major improvements in the larval rearing protocols and husbandry techniques for this species. Although breeding programmes are currently being developed by both governmental and private institutions in the main cod producing countries (i.e. Norway, Iceland and Canada), most hatcheries still rely on the mass spawning of their own broodstock. Mass spawning tanks are complex systems where fish are left to spawn naturally and fertilised eggs are collected with the overflowing water, with little or no control over the matings of the animals. Few published studies in other commercial marine species (i.e. turbot and sole) have attempted to analyse the output from such systems using microsatellite markers and several parentage analysis software programs. A review of these publications exposed a lack of consistency in the methods used to analyse such complex datasets. This problem was addressed by carrying out a detailed comparison of two analytical principals (i.e. assignment by strict exclusion and assignment by probabilities) and four parentage software programmes (i.e. FAP, VITASSIGN, CERVUS and PAPA), using the DNA profiles, at 5 loci, from 300 cod fry issued from the mass spawning of a large hatchery cod broodstock tank (consisting of 99 fish). This study revealed large discrepancies in the allocation outcomes between exclusion-based and probability-based assignments caused by the important rate of typing errors present in the dataset. Out of the four softwares tested, FAP (Taggart, 2007) was the most appropriate to use for handling such a dataset. It combined the most conservative method of assignment with the most informative output for the results displayed. In an attempt to study the breeding dynamics in a cod commercial hatchery, parental contributions to five groups of 300 fry (from five single days of spawning and from two commercial mass spawning cod tanks) were analysed, based on the genotyping data from eight loci. The parentage results from the exclusion-based analyses revealed that, on a single day, at least 25 to 30% of the total breeding population contributed to fertilised eggs that resulted in viable offspring at 50 and 83 days post-hatch. Family representations were highly skewed - with the marked dominance of a few males - and effective breeding populations were consistently low (approx. 5% of the total breeding population). Parental contribution to a group of 960 codlings - produced following intensive commercial practices (i.e. including successive size gradings and mixing of batches) and belonging to a single graded group - was also analysed, based on the genotyping data from eleven loci. The effective breeding population size of the juvenile batch (c. 14% of the total broodstock population) was two to three times greater than the effective size observed on a single day of mass spawning. The per-generation rate of inbreeding was however relatively high, for this batch alone, at 2.5%. Based on these results, suggestions were made to manage hatchery cod broodstock populations and implement genetic selection. Early maturation of farmed cod in sea cages (at two or three years old) is a major concern for ongrowers. Understanding the mechanism(s) behind sex determination in cod would probably help the development of a method to control sexual maturation. In an attempt to elucidate sex determination in cod, a protocol to induce gynogenesis was developed. Gynogenetic fish were successfully produced by irradiating cod milt with UV and applying a cold shock (at -6oC) to newly fertilised eggs. However, due to poor survival during larval rearing, only one gynogenetic fish survived long enough to be sexed; not enough to conclude anything on the sex determination mechanism(s) in cod.
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Stringwell, Rebecca. "Maternal effects and phenotypic mismatch in hatchery-reared Atlantic salmon." Thesis, Swansea University, 2015. https://cronfa.swan.ac.uk/Record/cronfa42357.

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Phenotypic variation was previously thought to be the result of complex interactions between an individual's genotype and the environment in which it exists. It is, however, now evident that an individual's phenotype may also be shaped by the environmental variation experienced by the mother, i.e. maternal effects. Environmental maternal effects have the potential to generate rapid phenotypic change in a population and so may be particularly important for evolution at ecological time-scales. The general aim of this thesis was to examine how maternal effects may influence offspring fitness and life history traits in Atlantic salmon (Salmo salar L.1758). For this species, the early juvenile period is the most critical due to their complex life cycle. Offspring rely on maternal provisioning during the early stages of development for growth and survival. Several studies on Atlantic salmon have emphasised the benefits of developing from larger eggs, yet it is unclear how the effects of rearing environment influence early life development. The thesis therefore investigated the effects of variation in maternal provisioning and female rearing environment on the development and physiology of embryos, the behaviour of newly emerged fry and the survival of fry released into the wild. Also assessed were the phenotypic changes among juvenile salmon released into the wild compared to those retained in the hatchery. For this maternal provisioning was manipulated by varying the length of time mothers from the same genetic background were maintained in captivity (2 months, 14 months and 26 months). The results of this thesis demonstrate that both maternal provisioning and female rearing environment alter the development and behaviour of salmon fry, opercular beat rate (a proxy for metabolic rate) and yolk sac absorption, and ultimately survival in the wild. Hatchery-reared fry were found to be maladapted to the natural environment for a number of phenotypic traits which are known to impact survival and the longer fry are retained in the hatchery prior to release the more phenotypically mismatched to the natural environment they become. However, increased egg size brought about my retaining females in captivity improved survival.
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Stott, Wendylee. "Genetic variation within and among Ontario hatchery stocks of lake trout (salvelinus namaycush) as measured by three molecular marker systems : applications to rehabilitation and hatchery management /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0005/NQ42882.pdf.

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Zink, Ian C. "Investigations Concerning Maximization of Cobia (Rachycentron candadum) Hatchery Production Including Incorporation of Microbial Management." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_theses/34.

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As concerns regarding the growing human population, rising seafood demand, and up to present limited success of fisheries management intensify, aquaculture is increasingly posited as a means to more efficiently produce seafood commodities. However, aquaculture expansion raises contentious issues itself. The current study addresses a number of these issues in attempts to improve hatchery production and related activities. Investigation of less-harmful chemotherapeutants for disease reduction at the egg stage could lead to improved hatchery microbial management, increased survival during early larval stages, increased efficacy of bacterial probiotic incorporation, and reductions in disease transfer between hatcheries and locations. Attempts to surface sterilize and disinfect cobia Rachycentron canadum eggs with 3 and 2% hydrogen peroxide solutions significantly reduced survival through the yolk-sac larvae stage. Furthermore, timing of treatment application at differing stages of egg development was found to significantly impact survival, highlighting the importance of this compounding factor. Bacterial probiotics can remediate water quality, reduce target host stress, and improve survival and population growth rates of live feed organisms. Two of the following studies investigated the benefits of incorporation of a Bacillus spp. probiotic blend in aquaculture activities. During closed container mock shipment of yellowfin tuna Thunnus albacares yolk-sac larvae, significant reductions in total ammonia nitrogen resultant from probiotic incorporation were observed. Furthermore, significantly reduced dissolved oxygen utilization might have resulted from stress reduction, as suggested by a non-significant lower degree in the breakdown of osmoregulation of the larvae. Incorporation of probiotics within rotifer Brachionus plicatilis cultures resulted in significantly higher daily mean populations, significantly lower population variability among replicates, and non-coincident logistic population growth regressions which yielded higher population growth rates and system carrying capacities. Broodstock management should not only maximize quantity of reproductive output, but quality as well. Significant increases in cobia egg diameter with increasing broodstock female age were detected, as well as significant increases in egg diameter with decreasing salinity. Confirmation of potentially increased larval growth rates resultant from increased energy stores of larger eggs when produced by older females, as demonstrated in other species, is warranted. Attempts to find production parameters which maximize cobia larval growth and survival would lead to increased sustainability via reducing demand for wild-collected Artemia and economic efficiency. Gaps in knowledge for achieving this goal continue to exist, but conclusions drawn from analysis of multiple production scale trials indicate temperatures of 29-31 °C maximize growth and survival. Improvement in sampling design and data analysis would increase statistical rigor and ease comparability of larvicultures outcomes across ranging influential factors. Further investigation of all of these matters is certainly warranted, although conclusions drawn could be effectively utilized to improve success of hatchery operations.
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Grant, Bridie. "Development of broodstock management and husbandry tools for improved hatchery performance of ballan wrasse (Labrus bergylta)." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24416.

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Cleaner fish, including ballan wrasse (Labrus bergylta) have been proposed as a sustainable solution to sea lice infestations affecting farmed Atlantic salmon (Salmo salar) globally. However, in order to become sustainable, ballan wrasse need to be farmed. This thesis investigated the establishment of captive broodstock and protocols to optimise hatchery performance and productivity of ballan wrasse. High throughput sequencing was used to develop a panel of novel single nucleotide polymorphic markers (SNPs). These SNPs were used to investigate the phylogeographic structuring of ballan wrasse populations within northern geographic ranges including the UK and Norway. Results indicated fine scale population structuring within the UK suggesting that founder broodstock should be sourced locally to minimise the risk of genetic introgression with wild ballan wrasse. Secondly, captive breeding was benchmarked from harems to determine total egg production over the spawning season. Data quantified the spawning periodicity and seasonal changes in egg quality parameters. In addition, microsatellite markers identified the parental contribution to each spawning event of captive broodstock. Results confirmed, for the first time, the repeat-batch spawning behaviour and suggested that spawning events were single-paired matings. Furthermore, bottlenecks in commercial production were investigated including the benthic adhesive eggs and complex spawning behaviours of ballan wrasse within broodstock tanks. Experiments were conducted to optimise the spawning dynamics and egg productivity using fragmented spawning zones and coloured substrates. Finally, an effective bath treatment for removal of the adhesive gum layer of eggs using the proteolytic enzyme alcalase® was found to assist in egg disinfection and incubation. Overall, this research provides important baseline data on the management of broodstock and the optimisation of hatchery protocols to improve the commercial productivity and performance of ballan wrasse for use as a biological control of sea lice of farmed Atlantic salmon.
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Saltzgiver, Melody. "Genetic Management Plan for the Endangered Pallid Sturgeon (Scaphirynchus albus) Captive Broodstock Maintained at Gavin's Point National Fish Hatchery." OpenSIUC, 2009. https://opensiuc.lib.siu.edu/theses/51.

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Pallid sturgeon (Scaphirhynchus albus) is a native North American fish that was listed as a federally endangered species in 1990 due to failure in spawning and recruitment, perhaps as a result of human modifications to their habitat. The upper Missouri River basin pallid sturgeon have been shown to be genetically distinct from other pallid sturgeon. Since there has been no natural recruitment in the upper Missouri River for several decades, perpetuation of this genetically distinct unit is reliant on propagation using remaining wild fish as broodstock. The expense associated with acquiring unique individuals from the remaining wild broodstock is causing wild collection to become a less viable option each year. It has been proposed that rearing progeny of wild broodstock fish in a hatchery setting as captive broodstock may be feasible alternative to wild collections. The genetic risks associated with the creation of a captive broodstock need to be investigated and a captive management plan needs to be developed prior to the implementation of a captive broodstock program. The relatedness values and the effective population size for the wild caught founders were determined by genotyping wild upper Missouri River pallid sturgeon at 16 previously developed microsatellite loci. The founding wild broodstock were shown to encompass an ample amount of genetic variation and a sufficiently large effective population size. The broodstock currently housed as Gavin's Point National Fish Hatchery can be exclusively used for the propagation of pallid sturgeon to be stocked in the upper Missouri River with the caveat that descendents from each wild fish will be spawned in the future and that the reproductive variance of the broodstock be controlled to maximize Ne and thus reduce inbreeding.
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Gheyas, Almas Ara. "Applications of microsatellite markers to genetic management of carps in aquaculture." Thesis, University of Stirling, 2006. http://hdl.handle.net/1893/3577.

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Carp aquaculture in South Asia suffers severely from a lack of genetic management, which has eroded the genetic quality of both captive and wild populations. Use of molecular markers, especially microsatellites, has revolutionized genetic management of hatchery stocks through its ability to detect kinship between individuals and hence in controlling level of inbreeding and loss of genetic diversity. In the present PhD work, microsatellite markers were applied to breeding programmes for silver carp (Hypophthalmichthys molitrix) and common carp (Cyprinus carpio) to study different genetic management aspects and new markers were generated from rohu (Labeo rohita). A set of newly isolated microsatellite markers from silver carp were characterized and two pentaplex PCR reactions were optimized to enable rapid genotyping of large number of individuals at 10 microsatellite loci. The utility of these markers in parentage, sibship and relatedness analysis were assessed by applying them to groups of fish with known relationship. These markers were used for parentage analysis in a breeding programme designed to estimate heritability of harvest weight and length in silver carp. Full- and half-sib families were created in three sets of partly factorial mating and all the families from each set were reared in communal ponds from very early life stages. With ten microsatellites 96.3% of the offspring could be assigned to a single family. Heritability estimates were found to be 0.65 ± 0.13 for weight and 0.50 ± 0.13 for length. High estimates of h2 suggested that this population should respond rapidly to selection for increased harvest size. Microsatellite markers were also applied to monitor the early stages of a mass selection programme in common carp (Cyprinus carpio). The selection was initiated from a base population synthesized from six different stocks. The selected individuals were divided to create two separate lines. The aims of this study were to monitor whether the stocks were represented in the intended proportions in the F1 selected populations, to investigate the relative contribution of families and its impact on effective population size and to identify any loss of molecular genetic variation. Five highly polymorphic microsatellites were used for parentage analysis of the selected fish to track stock and family contribution. Overall, large perturbations were observed in the relative contributions of two major stocks. Family contribution was also highly variable, causing the Ne to drop to below half the census size. A loss of 6.9%-12.2% of microsatellite alleles was observed but loss of heterozygosity was not very prominent. The replicate lines showed significant differences in allelic distribution after the first generation of selection, but not in genotypic distribution. Finally, 52 microsatellite markers were isolated from a partial genomic library of rohu using a selective hybridization protocol. Characterization of these markers resulted in 36 polymorphic loci, which will be useful in future work on conservation and management of both wild and captive rohu populations.
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Lew, Ryan. "Using next-gen sequencing to assist a conservation hatchery| A SNP panel for the genetic management of endangered Delta Smelt." Thesis, University of California, Davis, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1590837.

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The federally threatened Delta Smelt has been cultured in a conservation hatchery since 2008 in response to significant declines in the wild. The refuge relies on accurate, efficacious, and repeatable molecular techniques to help maintain the population's overall genetic diversity and minimize inbreeding. We have created a panel of single nucleotide polymorphisms (SNPs) to support broodstock pedigree reconstruction and improve upon current genetic management with microsatellites. Properly implemented, a SNP panel is a more powerful, repeatable, and higher-throughput method. Its use will streamline the management of the captive Delta Smelt population, which is performed in near real-time throughout the spawning season (February - May). For the SNP discovery, we sequenced 27 broodstock samples from the 2012 spawn using restriction site associated DNA sequencing (RAD-seq). We then created a linkage map by genotyping three single pair crosses at 2317 newly discovered loci with RAD-seq. We successfully mapped 1123 loci and identified 26 linkage groups. Fluidigm SNPtype genotyping assays were developed for 104 mapped loci selected for minor allele frequency (>20%), neutrality (Hardy-Weinberg equilibrium), and marker location. Candidates for the genotyping panel were evaluated on a 96x96 Integrated Fluidic Circuit and tested for marker accuracy and ability to accurately assign parentage. When applied in conjunction with mating records, we found that a panel of 24 independent SNPs successfully assigned 100% of tested offspring if all samples were genotyped at a minimum of 18 loci.

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Saltzgiver, Melody. "Genetic management plan for the endangered pallid sturgeon (Scaphirhynchus albus) captive broodstock mantained [sic] at Gavin's Point National Fish Hatchery /." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1879982661&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Books on the topic "Hatchery management"

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Northwest Power Planning Council (U.S.). Umatilla Hatchery master plan. [Portland, Or.]: The Council, 1990.

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Schrof, Stephen. Kitoi Bay Hatchery annual management plan, 2010. Anchorage: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services, 2010.

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Hatchery, Creston National Fish. Creston National Fish Hatchery, Kalispell, Montana. [Washington, D.C.?: U.S. Dept. of the Interior, U.S. Fish and Wildlife Service, 1997.

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Hatchery, Creston National Fish. Creston National Fish Hatchery, Kalispell, Montana. [Washington, D.C.?: U.S. Dept. of the Interior, U.S. Fish and Wildlife Service, 1997.

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Hatchery, Creston National Fish. Creston National Fish Hatchery, Kalispell, Montana. [Washington, D.C.?: U.S. Dept. of the Interior, U.S. Fish and Wildlife Service, 1997.

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Tipping, Jack M. Cowlitz hatchery program evaluation: Annual report for 2000. Olympia, Wash: Washington Dept. of Fish and Wildlife, 2001.

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Tipping, Jack M. Cowlitz hatchery program evaluation: Annual report for 2000. Olympia, Wash: Washington Dept. of Fish and Wildlife, 2001.

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Factory, Fish. Evaluation of pure oxygen systems at the Willamette hatchery: Completion report. Portland, OR: Bonneville Power Administration, 1990.

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Reimers, Paul E. Management of wild and hatchery coho salmon in the Tenmile Lakes system. Portland, OR: Oregon Dept. of Fish and Wildlife, 1989.

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Fickeisen, Duane H. Hatchery effectiveness technical Work Group retreat proceedings. Portland, Or: U.S. Dept. of Energy, Bonneville Power Administration, Division of Fish and Wildlife, 1990.

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Book chapters on the topic "Hatchery management"

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Parkhurst, Carmen R., and George J. Mountney. "Incubation and Hatchery Management." In Poultry Meat and Egg Production, 65–84. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-011-7053-6_5.

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Parkhurst, Carmen R., and George J. Mountney. "Incubation and Hatchery Management." In Poultry Meat and Egg Production, 65–84. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4757-0683-3_5.

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Saraswathy, R., M. Muralidhar, J. K. Sundaray, N. Lalitha, and P. Kumararaja. "Water Quality Management in Fish Hatchery and Grow-Out Systems." In Advances in Marine and Brackishwater Aquaculture, 217–25. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2271-2_20.

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Avery, Jimmy L., and James A. Steeby. "7 Hatchery management." In Biology and Culture of Channel Catfish, 145–65. Elsevier, 2004. http://dx.doi.org/10.1016/s0167-9309(04)80009-7.

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"Propagated Fish in Resource Management." In Propagated Fish in Resource Management, edited by DOUGLAS E. OLSON, BOB SPATEHOLTS, MIKE PAIYA, and DONALD E. CAMPTON. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569698.ch49.

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<em>Abstract.</em>—Salmon hatcheries in the Pacific Northwest continue to produce fish for harvest, largely to fulfill a mitigation function. Fisheries management struggles with the need to integrate this harvest opportunity from hatcheries with wild fish conservation. Warm Springs National Fish Hatchery demonstrates a program that balances this need to help offset salmon losses, provide fisheries, and protect wild fish. The U.S. Fish and Wildlife Service and Confederated Tribes of the Warm Springs Reservation of Oregon initiated the hatchery program in 1978 with wild, native fish from the Warm Springs River. The goal is to cooperatively manage hatchery operations to balance harvest opportunities with protection of wild fish populations and their inherent genetic resources. The management objectives are (1) to produce spring Chinook salmon <em>Oncorhynchus tshawytscha </em>for harvest in tribal subsistence and sport fisheries, (2) to preserve the genetic characteristics of the native population both in the hatchery and in the naturally spawning component of the integrated population, (3) to manage impact on wild fish to levels which pose a minimum risk, and (4) to develop and implement a hatchery operations plan to achieve both the harvest and conservation goals for the Warm Springs River Chinook population. To determine if these objectives are met, data on harvest, escapement, recruitment, spawning success, fish health, survival, run timing, age and size at return, and juvenile production characteristics have been collected to monitor changes over time and to compare performance of wild and hatchery origin fish. These data have been cooperatively collected by the Confederated Tribes of the Warm Springs Reservation, Oregon Department of Fish and Wildlife, and U.S. Fish and Wildlife Service for more than 25 years. Every 5 years, a hatchery operation plan has been developed based on this monitoring. The following list of actions are identified in the 2002–2006 hatchery operations plan and are measures for protecting the natural population while operating the hatchery for harvest augmentation: (1) Mass marking and codedwire tagging of hatchery production for selective fisheries, broodstock management, and hatchery evaluations; (2) Selecting broodstock to mimic wild fish run timing; (3) Incorporating wild fish in the hatchery broodstock using a sliding scale; (4) Limiting the number of hatchery fish allowed to spawn naturally; (5) Operating an automated passage system for returning adults to reduce handling of wild fish; (6) Replacing the hatchery’s water intake structure to meet new screening criteria to protect juvenile fish; (7) Simulating environmental and biological factors in the hatchery environment to match natural production; (8) Managing fish health at the hatchery; (9) Assessing ecological interactions between wild and hatchery fish; and (10) Determining the reproductive success of hatchery fish spawning in the stream. The monitoring and management of Warm Springs National Fish Hatchery demonstrates a sustainable program, integrating the need for both harvest and wild fish conservation.
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"Propagated Fish in Resource Management." In Propagated Fish in Resource Management, edited by H. LEE BLANKENSHIP and ELIZABETH DANIELS. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569698.ch47.

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<em>Abstract.</em>—The Puget Sound and Coastal Washington Hatchery Reform Project was funded by the U.S. Congress beginning in 1999. It is a systematic, science-driven redesign of hatcheries to help recover and conserve naturally spawning populations and support sustainable fisheries. The project has three structural components. These components include the Hatchery Scientific Review Group (HSRG; independent science), Hatchery Reform Coordinating Committee (tribal and agency policy), and Facilitation Group (project management and communications). Initial work by the HSRG included developing a scientific framework for artificial propagation of salmon and steelhead, a benefit/risk assessment tool, hatchery operational guidelines, and monitoring and evaluation criteria. These tools are being used by the HSRG in a comprehensive region-by-region review. During this review, programs were evaluated for consistency with established scientific principles and the objectives of hatchery reform. The HSRG made more than 1,000 specific program recommendations and 17 system-wide recommendations that affect management of all programs. These systemwide recommendations fall under three “principles for hatchery reform” that include “goal-setting,” establishing “scientific defensibility,” and employing “informed decision making” in hatchery management. Success of the hatchery reform project will be measured through effective implementation of these principles and recommendations by the state, tribal, and federal comanagers. Implementation thus far by the comanagers has included termination of several species-specific programs, a hatchery closure, and significant revisions to spawning and rearing practice. Plans include removal of hatchery structures that impede wild fish passage, comprehensive monitoring and evaluation, and hatchery-free steelhead management zones. Recommendations will also be incorporated into management plans and staff responsibilities at Washington Department of Fish and Wildlife and in processes between the comanagers such as the Endangered Species Act.
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"Propagated Fish in Resource Management." In Propagated Fish in Resource Management, edited by DANIEL GOODMAN. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569698.ch19.

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<em>Abstract.</em>—Salmon supplementation aims to integrate the wild and hatchery populations by deliberately allowing returning hatchery adults to stray to the natural spawning ground and, in some protocols, by taking adults of natural spawning origin for hatchery broodstock. If the population becomes truly integrated, this puts a different light on concerns about effects of “hatchery” fish on “wild” fish because the result will just be one population with a common gene pool. In this integrated population, the basis for an assessment of the genetic effect would be a comparison of the natural spawning performance of the supplemented population compared to that of an unsupplemented “control.” Actual, experimental supplementation programs have not yet measured the right quantities with the right design to provide an empirical assessment. Theoretical modeling shows that an integrated breeding program still has the potential for domestication selection during the hatchery phase, which can reduce the natural spawning performance of the stock relative to its presupplementation performance. The models predict that, all other things being equal, the erosion of natural spawning performance will increase with the frequency of natural spawning by hatchery spawned fish and the frequency of hatchery spawned fish in the hatchery broodstock. This should put more of a premium on adherence to a definite protocol, and on effective monitoring of actual supplementation experiments in order to quantify the inherent trade-offs between competing adaptations to the life cycle resulting from hatchery spawning versus the life cycle resulting from natural spawning.
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"Propagated Fish in Resource Management." In Propagated Fish in Resource Management, edited by STEVEN G. MCGEE. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569698.ch27.

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<em>Abstract.</em>—The hatchery program in Alaska was initiated in the 1970s to rehabilitate depleted salmon fisheries. It was predicated on protecting wild salmon stocks through development of rigorous permitting processes that include genetics, pathology, and management reviews, policies that require hatcheries to be located away from significant wild stocks, use of local brood sources, laws that give priority to wild stocks in fisheries, requirements for marking hatchery fish, and requirements for special studies on hatchery/wild stock interactions. The program is comprised of state, federal and private nonprofit (PNP) hatcheries. Currently, 16 of 26 operating hatcheries are run by PNP aquaculture associations. In 2002, hatcheries accounted for 23% of the salmon harvested commercially. Hatcheries produce approximately 1.5 billion juvenile fish annually, the majority of which are pink salmon <em>Oncorhynchus gorbuscha </em>and chum salmon <em>O. keta</em>. Whether hatchery production adversely impacts wild stocks is debated in Alaska. Interactions between hatchery-produced and relatively smaller populations of wild salmon are unavoidable. However, obvious, adverse impacts from hatcheries on wild salmon are not evident. The success of the Alaska hatchery program can be attributed to the development of laws, plans, and policies that require continued protection of wild stocks and to favorable environmental conditions in the North Pacific Ocean.
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"Propagated Fish in Resource Management." In Propagated Fish in Resource Management, edited by VAUGHN L. PARAGAMIAN and RAYMOND C. P. BEAMESDERFER. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569698.ch32.

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<em>Abstract.</em>—In 1994, the Kootenai River white sturgeon <em>Acipenser transmontanus </em>was listed in the United States as an endangered species. Under provisions of the Endangered Species Act, a recovery plan was prepared and included two main recovery measures: (1) mitigation of spring flows for spawning and early life rearing, and (2) implementation of a conservation aquaculture and breeding plan to prevent extinction and sustain year-classes. The hatchery program was controversial and intended as a short-term measure as the flow mitigation strategy for wild fish developed. It called for the release each year of up to 1,000 white sturgeon from each of 10–12 families. It was believed that the mitigation of spring flows from Libby Dam would rapidly bring about recovery. However, after 8 years of flow mitigation and intensive monitoring and evaluation, it became apparent that recovery needs were more complex. Flow releases were not at the expected magnitude and habitat issues became a significant concern because the spawning location of sturgeon did not appear suitable (silt and sand) for adequate survival of eggs and larvae. Recruitment of wild fish was extremely low, while survival of hatchery sturgeon was higher than expected. Hatchery fish soon became abundant out numbering juvenile wild sturgeon by about 400:1. Assessment of sturgeon demographics, with extinction risk models, provided evidence that the wild population would be extinct within three decades and the population would be comprised almost exclusively of hatchery fish. Population projections described a significant near-term bottleneck in spawner numbers as the wild population diminished but hatchery fish had not yet matured. Managers are faced with a contentious dilemma of elevating the importance of the hatchery program by taking a higher proportion of the remaining wild spawners, escalating the number of hatchery releases, which could result in increasing the risk of inbreeding depression, loss of genetic diversity, genetic swamping, disease magnification, long term domestication, and intraspecific competition with wild recruits, compromising recovery. However, without significant hatchery intervention, the population could become a museum piece with no management options to benefit anglers. There will be disagreements, but risks must be considered, and we propose some compromises that may ease the intrusion of hatchery fish and provide management options.
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Karal Marx, K., A. Rathipriya, J. K. Sundaray, and M. Muthu Abishag. "Setting up a Fish Hatchery." In Broodstock Management and Fish Seed Production, 15–24. CRC Press, 2020. http://dx.doi.org/10.1201/9781003111689-2.

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Conference papers on the topic "Hatchery management"

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Clemente, Rustom D. "Development of On-Line Hatchery Monitoring and Feeding Management System for Nile Tilapia." In 2019 IEEE 11th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management ( HNICEM ). IEEE, 2019. http://dx.doi.org/10.1109/hnicem48295.2019.9072727.

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Susanti, Lily, Suyud Warno Utomo, and Noverita Dian Takarina. "Dissolved Oxygen, Temperature, and Total Ammonia Nitrogen Management of Penaeus vannameiPostlarvae 10 Hatchery Using Nanobubble Technology." In The International Conference on Fisheries and Aquaculture. The International Institute of Knowledge Management, 2021. http://dx.doi.org/10.17501/23861282.2020.6103.

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Pugh, Clifford A., and Robert F. Einhellig. "Flow and Velocity Measurements Using Vortex Shedding and Magnetic Flow Meters, Jones Hole National Fish Hatchery." In Joint Conference on Water Resource Engineering and Water Resources Planning and Management 2000. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40517(2000)320.

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Saravanan, M. R., and A. Pasupathy. "Incorporation of phase change material (PCM) in poultry Hatchery for thermal management & energy conversion schemes of slaughterhouse waste in Broiler farms for energy conservation - a case study." In 2016 International Conference on Energy Efficient Technologies for Sustainability (ICEETS). IEEE, 2016. http://dx.doi.org/10.1109/iceets.2016.7583768.

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Suzuki, Katsuya, Shinsuke Torisawa, and Tsutomu Takagi. "Mathematical and Experimental Analysis of Schooling Behavior During Growth in Juvenile Chub Mackerel: Considerations of Population Density and Space Limitation." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29669.

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Population density and space limitation have proven important considerations for both fisheries management and aquaculture, resulting in intense interest in the development of new techniques and technologies for management and hatchery applications. To investigate the effects of space limitation and population density on the schooling behavior of fish, we examined the schooling behavior of captive juvenile chub mackerel. Three groups of fish were collected; collections were made at 18, 42, and 73 days post-hatch (dph) at which mean body lengths were 2.28, 8.83, and 11.4 cm, respectively. The two-dimensional movement of individuals during 200-s observation periods was digitized and processed. A mathematical model based on Newton’s second law of motion was used to quantify the forces dominating schooling behavior. The forces of swimming motion were quantified for each fish in a school as the propulsive force due to the swimming ability of each fish, the interactive force used to keep the proper distance and maintain similar velocity with neighboring fish, and the repulsive force used to keep a proper distance from the wall. The magnitude of the repulsive force was minimized in the 18-dph school, maximized in the 42-dph school, and decreased in the 73-dph school. The magnitudes of the propulsive and interactive forces increased with growth. Thus, the interactive force, which was critical for school formation and maintenance appears to reduce the importance of the repulsive force and causes the decline in the repulsive force between 18 and 73 dph.
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Lewcock, Andrew, Colette Grundy, Catherine Shaw, Paddy Copeland, and Duncan Jackson. "Managing the Removal of Radioactive Materials Found in Public Locations." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16032.

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Managing the removal of Radioactive Materials found in public locations. In January 2006 the Environment Agency for England and Wales requested assistance in preparing a project to plan, collect and safely dispose of radium painted aluminium aircraft hatches, discovered in 3 separate business premises in the UK. These World-War Two aircraft hatches had been marked with radium “luminous” paint, to guide crew in the dark to the escape exits if they needed to bale out. The hatches had been stored since the early 1960s in one location, with some of the inventory being moved two other locations in 2003/2004. The North West Region of the Environment Agency appointed a consortium of Enviros, Safeguard International and Aurora Health Physics to undertake the work, and they funded it from the sealed sources disposal budget. The paper will set out how the project was complicated by an assortment of “real world” problems; preliminary estimates of both the activity per hatch and the number of hatches established the potential for a significant quantity of radium to be disposed of safely. The total number of hatches was not known for sure at the start of the work. Access to retrieve the majority of the frames was hazardous due to the poor structural condition of the building roof. Other difficulties included constrained access under a railway line, and bird-related biohazards. The sites involved in the collections were not intended to house radioactive materials, so physical security was another important issue. Some of the hatches were known to be in poor condition, with a very high probability of radium contamination being spread to the surrounding areas. The hatches had to be removed from the sites before the full extent of contamination of other materials could be established. As it was difficult to identify a disposal route in the UK at the time for the estimated inventory, a novel metal recycling option, using a facility in the USA, was proposed as a solution. This was a new approach for dealing with such radioactive materials in the UK. The hatches were successfully recovered, sectioned appropriately and packaged for transport by road and air to the USA for metal recycling in June 2007. Subsequently approximately 0.75 tonnes of other contaminated materials were finally removed from the premises later in the year for authorised waste disposal in the UK.
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Reeves, Nigel, Colette Grundy, Alex Sutherland, Gordon John, Cath Shaw, Lisa Green, and Ian Beadle. "On-Site Characterisation, Re-Packaging and Transport of Luminised, Former Aircraft Escape Hatches." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7289.

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AMEC NNC, under contract to the UK Environment Agency, recovered a number of redundant aircraft hatches from an insecure location in North Wales. The Environment Agency instigated emergency action under the Radioactive Substances Act 1993 (RSA93), (1), to recover the hatches. Section 30(1) of RSA93 gives the Environment Agency powers to dispose of radioactive waste where it is unlikely the waste will be lawfully disposed of. Funding for this project was provided by the UK Government, within the Surplus Source Disposal Programme. The Environment Agency worked closely with partner regulatory organisations including the Health and Safety Executive (HSE), the Department for Transport (DfT) and the Local Authority to ensure the safe packaging, removal and transport of the material to a part-shielded store pending final disposal. The project comprised a number of technical difficulties that needed to be overcome. These included poor existing characterisation of the waste, insecure premises requiring daily lockdown, construction of a temporary containment facility with associated filtered extract and the inclement weather. AMEC NNC’s initial risk assessment identified the likelihood of high levels of loose, airborne radiological material. In order to provide adequate protection for personnel, and to prevent the spread of any radioactive contamination, the decision was made to implement radiological containment and to equip contractors with appropriate RPE (Respiratory Protective Equipment). Accurate characterisation of the radiological nature of the material was a crucial objective within the project. This was in order to correctly identify the Proper Shipping Name for consignment for transport, and to ensure that suitable transport containers were used. The packaged wastes were then transported to a secure location for temporary storage prior to final disposal. An innovative route was identified for processing of this material. Beneficial recycling and re-use within the nuclear industry was the outcome.
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