The ‘Catch per Unit Effort’ model
Use of different approaches to model catch per unit effort (CPUE) abundance of fish
... The Gulf of Kachchh and the Gulf of Khambhat are the two Gulfs in Gujarat out of the three Gulfs in the country. The study area falls between 16.37 to 23.20 0 N and 66.45 to 73.15 0 E 25 . There are 1,058 fishing ...
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Catch Per Unit Effort, Exploitation Level and Production of Hilsa Shad in Bangladesh Waters
... fore, measures need to be taken to minimize the juvenile Hilsa fishery. The exploitation rate of adults should be reduced either by decreasing the num- ber of fishing boats or by mesh size regulations. Banning the use of ...
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A comparison of different fuzzy inference systems for prediction of catch per unit effort (CPUE) of fish
... space and time. We would rely on other low or high spatial resolution and also on different temporal resolution-composite value retrieved from weekly or fortnightly or monthly data. Fuzziness is involved during the ...
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Future of fishing for a vulnerable atoll: trends in catch and catch per unit effort in Tokelau's domestic marine fisheries 1950 2016
... fishing effort, and catch-per-unit-effort (CPUE) from 1950 to ...fishing effort or fishing capacity, estimated using length, motorization and type of fishing ...fishing ...
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Catch per unit effort of coastal prawn trammel net fishery in Izmir Bay, Aegean Sea
... The fishing gear, a trammel net in all of the boats, is composed of two layers, one lower and one upper (Fig. 1). The stretched mesh sizes of the inner and outer nets were 40 mm and 220 mm respectively and the length of ...
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A Catch Per Unit Effort (CPUE) Spatial Metric with Respect to the Western North Atlantic Pelagic Longline Fishery
... aggregated catch and effort data over several years provides tangible insight to where HMS may be aggregating within a large-scale habitat, such as the Atlantic ...fishing effort distribution and ...
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Species diversity and catch per unit effort (CPUE) of Gobiidae in Salmanshahr, coastal area of the southern Caspian Sea
... kg per 27 seine hauls (CPUE: 5.76 kg per seine haul) from October to April, but in this research it was calculated as ...kg per 70 seine hauls (CPUE: 0.23 kg per seine haul) over the same ...
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Catch per unit effort environmental variables relations in the fishery of white shrimp (Litopenaeus schmitti) from the Gulf of Venezuela
... To determine if the environmental structure modeled the distribution of the white shrimp abundance, the CPUE values were superimposed on maps of the sampling area showing strata of th[r] ...
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Socioeconomics of Billfish Sportfishing in Isla Mujeres, Mexico An Evaluation of the Relationship between Willingness to Pay and Catch Per Unit Effort
... Subsequently, a decreased fishing experience by anglers in a particular location that could result from a reduction in the stock could have detrimental effects on the economies of local communities due to anglers’ ...
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Catch Per Unit Research Effort: Sampling Intensity, Chronological Uncertainty, and the Onset of Marine Fish Consumption in Historic London
... There is, of course, no strict reason to assume a uni- form distribution of probability between given start and end dates. The calculation of summed probability distri- butions (SPDs) from multiple radiocarbon dates (see ...
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Investigating priceless orange roughy (Hoplostethus atlanticus) population dynamics using linear models of catch per unit effort (CPUE)
... for catch data from the NZ EEZ from 1989 - 2014. The variation in catch in the NZ EEZ is greater than the variation seen in the three other regions which is expected due to the larger volume of catches ...
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Comparison of catch per unit effort among four minnow trap models in the three-spined stickleback (Gasterosteus aculeatus) fishery
... trap model, low entry rate might be the likely explanation for the low ...trap model-specific CPUEs and escape probability estimates are not perfectly matching suggests that part of the variation in CPUEs ...
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Catch per unit effort (CPUE) and population dynamics of Japanese threadfin bream (Nemipterus japonicus) at coastal area of Sungai Besar, Selangor
... Nemipterus japonicus is the demersal commercial fish which also known as Japanese threadfin bream. In Malaysia, threadfin bream is more in the food industry. As the demand of the market is high, the population of the ...
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The Status Of Catch Per Unit Effort (Cpue) And Utilization Rate Of Skipjack Tuna (Katsuwonus Pelamis) In The Kolaka Waters, Southeast Sulawesi, Indonesia
... 2 MATERIALS AND METHODS 2.1 Materials and Technique of Data Collection The data of skipjack fish were collected from the records of the landing fishing ports in the Kolaka Regency. All fishing records were stored to the ...
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Catch per unit area of Batoid fishes in the Northern Oman Sea
... The catch per unit area CPUA as the main index was ...the catch composition and distribution pattern of Batoid fishes in the study area and in different depth strata of the Oman ...
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Catch and Catch per unit efforts of Acipenser persicus (Borodin, 1897) in southern of the Caspian Sea (Mazandaran waters)
... weight, catch condition, catch per unit effort in the beach seine and ...The catch per unit effort had decreasing trend from 2009 to 2012 with ...kg/boat ...
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The Catch Composition and Catch per Unit of Swept Area (CPUE) of Penaeid Shrimps in the Bottom Trawls from İskenderun Bay, Turkey
... identify catch composition, (ii) to determine the CPUE, and (iii) to determine the percentage of penaeid shrimps in the total economic ...average catch rate ...economic catch (5.1%). The mean ...
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Correlation of Phytoplankton Biomass (Chlorophyll-a) and Nutrients with the Catch Per Unit Effort in the PFZ Forecast Areas of Northern Bay of Bengal during Simultaneous Validation of Winter Fishing Season
... total catch divided by the total fishing effort in a given period, or in formula U = C/f (Gulland 1983), in which U denotes the CPUE, C denotes the total catch and f stands for the total fishing ...
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Comparison of Seasonal Catch Per Unit Efforts for Mono- and Multifilament Trammel Nets in Lake Beyşehir
... authorities' own experiences, and on interviews with fishermen. Instead of this circumstantial evidence, the CPUE by species and by gear could serve as a useful and objective index (Hyvärinen and Salojärvi, 1991). CPUE ...
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Catch per unit efforts and impacts of gears on fish abundance in an oxbow lake ecosystem in Eastern India
... relative catch composition both in biomass (RCB) and numbers (RCN) throughout the year except during the pre-monsoon season when the cone- framed cast net hauled in the maximum catch in biomass ...of ...
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