Copyright 2021 Yuan-Wei Du et al. Thirdly, the proposed method was applied to a real case. Firstly, in the self-evaluation report, the MR-E should be required to provide objective data on the lowest indices to the extent possible (called MR-E self-evaluation). The science base of marine restocking, stock enhancement, and sea ranching continues to advance rapidly and has now reached a point where it is becoming possible to assess the likely contribution of such approaches to fisheries management goals prior to major investments being undertaken and to design enhancement programs effectively and respons. According to the relations provided in the DPSIR framework, the IDR matrix of the five factors (, Step 2: Normalize the IDR matrix. Sea-ranching also provides a more natural environment for the seaweed to grow, which may result in a more diverse and nutritious product. Kitada explained that the purpose of marine ranching is to catch (to the extent possible) all juvenile fish released in the fishing area, which can be managed by fishermen [3]. indicated that the information for business decisions is often vague and imprecise, and developed a fuzzy methodology for sustainable supplier selection based on fuzzy information [35]. (4)Compute the total relation matrix. Optimizing cost effectiveness of size at release in stock enhancement programs. M. Elliott, D. Burdon, J. P. Atkins et al., And DPSIR begat DAPSI (W) R (M)!-a unifying framework for marine environmental management, Marine Pollution Bulletin, vol. Production costs for various sizes of juvenile fish were related to performance based on capture rates in a subsistence fishery in Kaneohe Bay on the island of Oahu, Hawaii. S. Kitada, Economic, ecological and genetic impacts of marine stock enhancement and sea ranching: a systematic review, Fish and Fisheries, vol. Ecological security is a complicated system involving natural, landscape, and socioeconomic factors [12]. A spreadsheet cost model for marine shrimp aquaculture was adapted to striped mullet intensive culture techniques in Hawaii. The Impact factor can be measured through three types of elements: ecological impact (c41), social impact (c42), and economic impact (c43). 1-2, 2018. (3)State (C3) relates to changes in the present natural situation as a result of Driver (C1) and Pressure (C2). Footprint: 919 square feet (one bedroom, one bath). 10 to 14 November 2019 The Driver factor is divided into three types of elements: policy driver (c11), economic driver (c12), and responsibility driver (c13). 36123620, 2009. In other words, the grade levels employed in DEMATEL are defined as 0 and 1. If we only consider the state of the factors and ignore the relationship between the factors in the process of MRES evaluation, then the influence of system structure on system function is neglected, and the overall MRES results of the evaluation objects are flawed. Governments are responding to the fisheries crisis by reducing fishing efforts and protecting fisheries habitats. X. Jiang, Urban ecological security evaluation and analysis based on fuzzy mathematics, Procedia Engineering, vol. This week, dive into a brief history of deep-sea exploration, come face-to-face with a 1,300-year-old Anglo-Saxon teen, prepare for the 2024 total solar eclipse, and more. (3) Comprehensive integration is a process of integrating the evaluation information given by experts and the influence relationships among factors to determine the overall performance level of the evaluated MR-E on MRES. (3) Determine the MRES evaluation index system. X. J. Gou, Z. S. Xu, W. Zhou, and E. Herrera-Viedma, The risk assessment of construction project investment based on prospect theory with linguistic preference orderings, Economic Research-Ekonomska Istraivanja, pp. Live abalone sells abroad for up to $120 or approximately P5,700 a kilo, and dried sea cucumber . Therefore, weights are frequently employed to reflect the relative importance of the different judgments given by the experts [46, 53]. (2)Establish the IDR matrix. Reckless exploitation of marine living resources, disruption of ecological links and damage to critical habitats have created a situation whereby many wild stocks that had traditionally supported commercial fisheries are no longer able to replenish abundance through reproductive recruitment and are unable to regain their adaptation and genetic variability. However, it is desirable to capture them before they breed or mate with wild individuals [7]. First of all, the present study constructed an MRES evaluation index system. First, the evaluation index system was structured using the Driver-Pressure-State-Impact-Response (DPSIR) framework by following certain principles. Sea ranching, in which juvenile fish are released to grow unprotected on natural foods in marine waters where they are harvested at marketable size (Thorpe, 1989), takes advantage of the sea as a large aquatic pasture (Liao, 1988). There has been an increasing demand for marine products, which has stressed fishery production.
Sea ranching systems | Business Queensland See Answer Question: 5. In terms of technical inputs it has advantages over other mariculture interventions because of lower costs and reduced labour requirements (i.e., no construction or maintenance of enclosures).
(PDF) Restocking, Stock Enhancement, and Sea Ranching: Arenas of proposed a Decision Making Trial and Evaluation Laboratory (DEMATEL) method for probabilistic linguistic term sets to analyze relations of criteria and find key factors in the evaluation system [29]. (2)The division of labor between the MR-E and the experts is clear. The index system has a theoretical basis. As mentioned in Section 1, the MRES factors may interact with each other within the complex marine ranching system. Year Built: 1965. Experts only need to evaluate the overall performance of the MR-E according to the self-evaluation results (see Table. Location: 120 Sea Walk Drive #6, The Sea Ranch, California. According to the self-evaluation results , expert with weight is required to evaluate the performance of the MR-E on the element and give the assessment as in equation (1). Witness or catching new fish also expands your own personal knowledge . This study mainly constructs the evaluation index system of MRES from the three objectives of biosafety, environmental safety, and ecosystem safety. Z. Mu, S. Zeng, and P. Wang, Novel approach to multi-attribute group decision-making based on interval-valued pythagorean fuzzy power Maclaurin symmetric mean operator, Computers & Industrial Engineering, Article ID 107049, 2020. In particular, MRES can affect the sustainable development of marine resources under the condition of satisfying three aspects, namely, resource supply, ecological environment, and human needs. at Mote Marine Laboratory in Sarasota, Florida, USA. Y. Chen and J. Wang, Ecological security early-warning in central Yunnan Province, China, based on the gray model, Ecological Indicators, vol. Science popularization and education (c532) can help publicize and promote the achievements of marine ranching. In addition, DEMATEL can get the weights of factors as based on the DPSIR model. 2740, 2017. 3, pp. 96106, 2017. 14, pp. 367377, 2018. Marine ranching is a complex and systematic project, the construction of which involves many aspects, such as economy, ecology, society, policy and technology. However, because of the complex action mechanism among the five dimensions of DPSIR, it is difficult to make a comprehensive judgment on the overall performance of the MR-E. We identified the costs required to rear fingerlings to each of five consecutive size intervals, ranging from 45 to 130 mm total length (TL). Although the ecological benefit of marine ranching is acknowledged, it is worth noticing that improper management of MRES will bring greater potential environmental threats to the sea area. 119, pp. Investigation of the MR-E revealed the following. Overfishing and habitat destruction have reduced the catch of many species and despite reorientation of management approaches their populations have not responded. Construct the evaluation index system for MRES as shown in Figure, Step 2: Conduct self-evaluation. Here, we outline a responsible approach to managing genetic resources that includes six steps: (1) assess the costs and benefits of a stock restoration or enhancement, (2) set goals and genetic benchmarks, (3) use appropriate brood stock and limit domestication, (4) design release strategies that maximize the effectiveness of supplementation eff. Tilseth, S., Nosho, T. and Freeman, K. (1994) Overview of Sea Ranching of Atlantic Cod and Review of the Norwegian Sea Ranching Program. Make comprehensive evaluation. P. Li, J. Liu, Y. Yang, and C. Wei, Evaluation of poverty-stricken families in rural areas using a novel case-based reasoning method for probabilistic linguistic term sets, Computers & Industrial Engineering, vol. Evolving Context and Maturing Science: Aquaculture-Based Enhancement and Restoration Enter the Marine Fisheries Management Toolbox. 615649, 2017. The artificial reef release area this year is 163ha, and the release reef types are proliferative reef and swim fishing reef. Moreover, according to the GB 18668-2002 Marine Sediment Quality Standards, the status of marine sediments in the sea area of the MR-E can also be judged. Hair, and A. E. Fleming, "Sea ranching release techniques for cultured sea cucumber Holothuria scabra (Echinodermata: holothuroidea) juveniles within the high-energy marine environments of northern Australia . It creates that exciting feeling of the unknown and for what could be. 150, pp. Journal of Experimental Marine Biology and Ecology. We highlight four major developments in marine ranching in the ECS: (1) marine ranching site selection and design, (2) habitat restoration and construction technologies, (3) stock enhancement. The social impact is mainly reflected in the situation of employment in the surrounding areas, namely, the number of absorbed or resettled fishermen (c421). The MR-E is required to objectively evaluate the performance of marine ranching on and give the fact set as , , . 10201023, 2006. Marine ranching. The benefits of aquatic products (c 432) and the losses caused by natural or man-made disasters (c 433) . Thus, there is a need to construct a systematic evaluation index system for evaluating it.
Marine ranching - Food and Agriculture Organization This is one of the instruments of implementing a green development strategy. Marine ranching is an artificial ecosystem, and its MRES is a functional state produced by the interaction of internal factors. The third one is how to make evaluations for MRES by combining subjective experience and objective data.
Then, the MR-E can describe the specific performance on according to the objective and realistic situation in terms of resources, environment, management, and other aspects. Artificial reefs for sea ranching (a) Assembly of an artificial reef (b) Installation of an artificial reef at a selected site (c) Artificial reefs awaiting to be installed offshore.
Although various evaluation approaches have been adopted to address the issue of ecological security in the above fields, the evaluation index systems are constructed by following the framework of the Pressure-State-Response (PSR) model or its extensions [20, 23], and evaluation methods are frequently constructed from multiple criteria decision-making (MCDM) [2428]. This approach, which provides a comprehensive and scientific method for MRES, can solve issues that are fuzzy and difficult to quantify and is suitable for solving various nondeterministic problems [47]. Third, a case study of a marine ranching in the Shandong Province was discussed to demonstrate the applicability of the proposed method. Community-based sea ranching: fisherfolks' legacy to sustainable fisheries. 133, pp. With rich expert knowledge, the interrelation and overall influence of various factors can be analyzed better to identify the structural relationships within the complex system, which is again conducive to comprehensive decision-making by stakeholders. The influencing degree of factor, Step 1: Construct the fuzzy membership matrix. J. Tian and G. Gang, Research on regional ecological security assessment, Energy Procedia, vol. Sea ranching is the maintenance of fish in an aquatic area and the area has natural isolation so that fish that are stocked 14311440, 2020. W. Ruan, Y. Li, S. Zhang, and C.-H. Liu, Evaluation and drive mechanism of tourism ecological security based on the DPSIR-DEA model, Tourism Management, vol. Construct the evaluation index system for MRES as shown in Figure 1, which includes three levels, namely, the factor level, the element level, and the index level. Because it can reflect the concrete performance of marine ranching in five dimensions (including Driver, Pressure, State, Impact, and Response), it can systematically reflect the MRES level from the perspective of sustainable development. A safe marine ranching ecological system is conducive to improving the quality of resource supplies and the restoration ability of the ecological environment, thus helping to maximize ecological benefits while ensuring economic benefits and social benefits.
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