The Experts below are selected from a list of 138 Experts worldwide ranked by ideXlab platform
Mulyono S Askoro - One of the best experts on this subject based on the ideXlab platform.
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the handling system of product and existence of waste components in Fishing Operation of tuna in bitung north sulawesi
Jurnal Pengolahan Hasil Perikanan Indonesia, 2016Co-Authors: Mustaruddi Mustaruddi, Joko Santoso, Mulyono S AskoroAbstract:Handling in Fishing vessel is urgent to maintaining the quality of tuna products, while the existence of waste components can bother the performance of Fishing Operations. The aims of this research are to evaluate the handling system of tuna products in Fishing vessel and to analyze the influences of Fishing Operation to the existence of waste components. This research methods are no control chart and regression model approach. Research result shows that the handling system in the Fishing Operation of tuna in Bitung is not optimum. But the quality of tuna products which landed is still in controlled as shown by amount of rejecting products in UCL-LCL range (0 – 3,63 reject products/processing). The influence of amount of tuna caught per setting (X) to existence of bait waste (Y) formulated with model Y = - 1,176X+37.794, the influence of amount of tuna products (X) to the existence of ices remained Y) formulated with model Y = - 0,002X + 62,226, and also the influences of Fishing Operation which deputized by the amount of ABK (X1) and number of operating days (X2) to the existence of freshwater remained (Y) formulated with model Y = 50,000X1-23,704X2+288,889. The significant impacts are only the influence of amount of tuna products in existence of ices remained (sigh = 0,036) and number of operating days of the existence of freshwater remained (sigh = 0,037). Keywords: Bitung, waste components, handling system, tuna
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sistem penanganan produk dan keberadaan komponen sisa dalam operasi penangkapan tuna di bitung provinsi sulawesi utara the handling system of product and existence of waste components in Fishing Operation of tuna in bitung north sulawesi
2016Co-Authors: Joko Santoso, Mulyono S AskoroAbstract:Handling in Fishing vessel is urgent to maintaining the quality of tuna products, while the existence of waste components can bother the performance of Fishing Operations. The aims of this research are to evaluate the handling system of tuna products in Fishing vessel and to analyze the influences of Fishing Operation to the existence of waste components. This research methods are no control chart and regression model approach. Research result shows that the handling system in the Fishing Operation of tuna in Bitung is not optimum. But the quality of tuna products which landed is still in controlled as shown by amount of rejecting products in UCL-LCL range (0 – 3,63 reject products/processing). The influence of amount of tuna caught per setting (X) to existence of bait waste (Y) formulated with model Y = - 1,176X+37.794, the influence of amount of tuna products (X) to the existence of ices remained Y) formulated with model Y = - 0,002X + 62,226, and also the influences of Fishing Operation which deputized by the amount of ABK (X1) and number of operating days (X2) to the existence of freshwater remained (Y) formulated with model Y = 50,000X1-23,704X2+288,889. The significant impacts are only the influence of amount of tuna products in existence of ices remained (sigh = 0,036) and number of operating days of the existence of freshwater remained (sigh = 0,037).
Joko Santoso - One of the best experts on this subject based on the ideXlab platform.
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the handling system of product and existence of waste components in Fishing Operation of tuna in bitung north sulawesi
Jurnal Pengolahan Hasil Perikanan Indonesia, 2016Co-Authors: Mustaruddi Mustaruddi, Joko Santoso, Mulyono S AskoroAbstract:Handling in Fishing vessel is urgent to maintaining the quality of tuna products, while the existence of waste components can bother the performance of Fishing Operations. The aims of this research are to evaluate the handling system of tuna products in Fishing vessel and to analyze the influences of Fishing Operation to the existence of waste components. This research methods are no control chart and regression model approach. Research result shows that the handling system in the Fishing Operation of tuna in Bitung is not optimum. But the quality of tuna products which landed is still in controlled as shown by amount of rejecting products in UCL-LCL range (0 – 3,63 reject products/processing). The influence of amount of tuna caught per setting (X) to existence of bait waste (Y) formulated with model Y = - 1,176X+37.794, the influence of amount of tuna products (X) to the existence of ices remained Y) formulated with model Y = - 0,002X + 62,226, and also the influences of Fishing Operation which deputized by the amount of ABK (X1) and number of operating days (X2) to the existence of freshwater remained (Y) formulated with model Y = 50,000X1-23,704X2+288,889. The significant impacts are only the influence of amount of tuna products in existence of ices remained (sigh = 0,036) and number of operating days of the existence of freshwater remained (sigh = 0,037). Keywords: Bitung, waste components, handling system, tuna
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sistem penanganan produk dan keberadaan komponen sisa dalam operasi penangkapan tuna di bitung provinsi sulawesi utara the handling system of product and existence of waste components in Fishing Operation of tuna in bitung north sulawesi
2016Co-Authors: Joko Santoso, Mulyono S AskoroAbstract:Handling in Fishing vessel is urgent to maintaining the quality of tuna products, while the existence of waste components can bother the performance of Fishing Operations. The aims of this research are to evaluate the handling system of tuna products in Fishing vessel and to analyze the influences of Fishing Operation to the existence of waste components. This research methods are no control chart and regression model approach. Research result shows that the handling system in the Fishing Operation of tuna in Bitung is not optimum. But the quality of tuna products which landed is still in controlled as shown by amount of rejecting products in UCL-LCL range (0 – 3,63 reject products/processing). The influence of amount of tuna caught per setting (X) to existence of bait waste (Y) formulated with model Y = - 1,176X+37.794, the influence of amount of tuna products (X) to the existence of ices remained Y) formulated with model Y = - 0,002X + 62,226, and also the influences of Fishing Operation which deputized by the amount of ABK (X1) and number of operating days (X2) to the existence of freshwater remained (Y) formulated with model Y = 50,000X1-23,704X2+288,889. The significant impacts are only the influence of amount of tuna products in existence of ices remained (sigh = 0,036) and number of operating days of the existence of freshwater remained (sigh = 0,037).
Jon Helge Volstad - One of the best experts on this subject based on the ideXlab platform.
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spatial and temporal variations in seabird bycatch incidental bycatch in the norwegian coastal gillnet fishery
PLOS ONE, 2019Co-Authors: Kim Magnus Baerum, Tycho Ankernilssen, Signe Christensendalsgaard, Kirstin Fangel, T Williams, Jon Helge VolstadAbstract:The general decline of seabird populations worldwide raises large concerns. Although multiple factors are interacting to cause the observed trends, increased mortality from incidental bycatch in fisheries has proven to be important for many species. However, the bulk of published knowledge is derived from longline fisheries, whereas bycatch in gillnet fisheries is less studied and even overlooked in some areas. We present seabird bycatch data from a 10-year time-series of fishery data from the large fleet of small-vessels Fishing with gillnets along the Norwegian coast—a large area and fishery with no prior estimates of seabird bycatch. In general, we document high rates of incidental bycatch (averaging 0.0023 seabirds/net, or approximately 0.08 seabirds/Fishing trip). This results in an estimated annual bycatch between 1580 and 11500 (95% CI) birds in this fishery. There was a surprisingly high percentage (43%) of surface-feeding seabirds in the bycatch, with northern fulmar being the most common species. Among the diving seabirds caught, common guillemot was most numerous. Our findings suggest that coastal gillnet fisheries represent a more general threat to a wider range of seabird populations, as opposed to longline fisheries where surface-feeding seabird species seem to dominate the bycatch. The bycatch estimates for the Norwegian gillnet-fishery varied in time, between areas, and with Fishing depth and distance from the coast, but we found no clear trends in relation to the type of gillnets used. The results enabled us to identify important spatio-temporal trends in the seabird bycatch, which can allow for the development and implementation of more specific mitigation measures. While specific time closures might be an efficient option to reduce bycatch for diving seabirds, measures such as gear modification and reduction in release of wastewater during Fishing Operation are probably a more effective mitigation approach for reducing bycatch of surface-feeding seabirds.
Umi Chodriyah - One of the best experts on this subject based on the ideXlab platform.
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Fishing Season of Large Tuna from Purse Seine Fishery in Tumumpa, Manado, North Sulawesi
Diponegoro University; Association of Indonesian Coastal Management Experts, 2019Co-Authors: Am Setyadji, Umi ChodriyahAbstract:Knowledge on seasonal Fishing pattern is essential in fisheries research in order to increase the effectiveness of Fishing and at the same time protecting the Fishing ground from excessive Fishing practices. Determining the seasonal Fishing pattern of large pelagic fishes, namely large tuna (yellowfin and bigeye), small tuna (mackerel) and skipjack tuna were the objective of this study. Data from the 2013-2015 Fishing Operation time series were used to analyze the Fishing season using the percentage average per unit effort (CPUE) method. The main focus of this study was purse seine fishery. The research showed that high Fishing season of large pelagic fishes allegedly occurred during May to July, which reached its peak on May. On the other hand, low Fishing season occurred during January to April, with the lowest on March. There were similarities between large tuna, small tuna and skipjack in term of their seasonal Fishing pattern, although they did not show any good correlation (r
F G Oneill - One of the best experts on this subject based on the ideXlab platform.
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estimating seabed pressure from demersal trawls seines and dredges based on gear design and dimensions
Ices Journal of Marine Science, 2016Co-Authors: Ole Ritzau Eigaard, Francois Bastardie, Mike Breen, Grete E Dinesen, Niels T Hintzen, Pascal Laffargue, Lars O Mortensen, Rasmus J Nielsen, Hans C Nilsson, F G OneillAbstract:This study assesses the seabed pressure of towed Fishing gears and models the physical impact (area and depth of seabed penetration) from trip-based information of vessel size, gear type, and catch. Traditionally Fishing pressures are calculated top-down by making use of large-scale statistics such as logbook data. Here, we take a different approach starting from the gear itself (design and dimensions) to estimate the physical interactions with the seabed at the level of the individual Fishing Operation. We defined 14 distinct towed gear groups in European waters (eight otter trawl groups, three beam trawl groups, two demersal seine groups, and one dredge group), for which we established gear “footprints”. The footprint of a gear is defined as the relative contribution from individual larger gear components, such as trawl doors, sweeps, and groundgear, to the total area and severity of the gear's impact. An industry-based survey covering 13 countries provided the basis for estimating the relative impact-area contributions from individual gear components, whereas sediment penetration was estimated based on a literature review. For each gear group, a vessel size–gear size relationship was estimated to enable the prediction of gear footprint area and sediment penetration from vessel size. Application of these relationships with average vessel sizes and towing speeds provided hourly swept-area estimates by metier.
