نتایج جستجو برای: catch per unit of effort
تعداد نتایج: 21195074 فیلتر نتایج به سال:
Stock assessment and the opening and closure seasons of the green tiger prawn were surveyed in Bushehr waters from July 2004 to September 2006. The study area encompassed Motaf area (27° 30' N" and 51° 30' E) to Daylam waters (30° 00' N and 50° 00' E) the northern part of the Iranian waters of the Persian Gulf. Assessment was conducted using 45 stations on 15 transects in water depths less th...
Management of small pelagic fish resources is one the efforts to prevent a decrease in carrying capacity which has continued experience decline production Buton Regency since last 5 years 2016. This study aims analyze CPUE (Catch per Unit Effort), sustainable potential (MSY) and level utilization exploitation so that it can become information for managing resources. The research method used ana...
Economic development in Africa is expected to increase levels of bushmeat hunting through rising demand for meat and improved transport infrastructure. However, few studies have tracked long-term changes in hunter behavior as a means of testing this prediction. We evaluated changes in hunter behavior in a rural community in Equatorial Guinea over a period of rapid national economic growth, duri...
population and density estimate of black rat in mangrove forests was conducted by two independent procedures, including seber-jolly and catch-effort methods. a selected trapping area with 15 hectares was studied. first, 60 cage traps for seber-jolly and then 80 cage traps for catch-effort method installed in the trapping area. we used color earrings and numerical rings for marking the captured ...
Accurate information on total catch and effort is essential for successful fisheries management. Officially reported landings, however, may be underestimates of total catch in many fisheries. We investigated the fishery for the nationally red-listed European lobster (Homarus gammarus) in south-eastern Norway. Probability-based strip transect surveys were used to count buoys in the study area in...
We report on results of a trawl survey to assess the abundance of Batoid fish resources in the Oman Sea. The catch per unit area CPUA as the main index was estimated. The objectives of this study were to determine the catch composition and distribution pattern of Batoid fishes in the study area and in different depth strata of the Oman Sea.A total of 82stations were randomly selected 2012. The ...
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