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MeetingMeeting documentMaldives Skipjack Pole and Line Fishery Catch Rate Standardization 2004-2010 2013
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MeetingMeeting documentMaldives skipjack pole and line fishery catch rate standardization 2004-2011: reconstructing historic CPUE till 1985 2013
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No results found.A qualitative description and GLM-based standardization of the Maldivian skipjack (Katsuwo pelamis, SKJ) pole and line fishery catch rate data are presented for the period 2004-2011. The raw data consists of around 124000 records of catch (numbers) and effort (fishing days) by month, atoll and vessel; vessel characteristics were added to the CPUE dataset based on information from the registry of vessels. A subset of 56,698 records were extracted from the dataset, identified as records of fishing activity targeting skipjack. In the process, the paper discusses several data quality issues with the CPUE dataset, notably records with zero skipjack catch with a directed PL fishery and which were eventually discounted from the fil alysis. FAD data was also incorporated into the alysis using the number of active FADS associated with the nearest atoll that the landing data is collected from. In order to do this, the distribution of FADs was split into three regions incorporating the North Atol ls, Middle Atoll and South Atolls. Vessel specific data including hull-type effects, length of the boat (as a vessel size class) and horse power was also used in the alysis. GLM based models using a log response on CPUE were examined. The fil model presented estimated log(CPUE) from independent variables Year, Month, Area (N, S, or M), number of FADs used in the area, and Length of vessel, and interaction effects between the last 3 categories. The data was alysed at a monthly resolution before b eing was collapsed into quarterly sigls for 2004-2011. Filly, using vessel length as a continuous covariate, the CPUE data was estimated for historic periods till 1985. -
MeetingMeeting documentMaldives skipjack pole and line fishery catch rate standardization 2004–2012: Reconstructing historic CPUE until 1985 2014
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Book (stand-alone)General interest bookHarmonized World Soil Database version 2.0 2023
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No results found.The Harmonized World Soil Database version 2.0 (HWSD v2.0) is a unique global soil inventory providing information on the morphological, chemical and physical properties of soils at approximately 1 km resolution. Its main objective is to be useful for modelers and to serve as a basis for prospective studies on agroecological zoning, food security and the impacts of climate change. HWSD v2.0 also serves an educational function, illustrating the geographical distribution of soils as well as their properties globally. HWSD v2.0 is easily accessible and user-friendly. -
DocumentOther documentInternational Year of Forests 2011 – Celebrate forests every day 20112011 is a special year for forests and for all who care about them. To inaugurate it, FAO has created a special issue of Unasylva. More than 100 international days are celebrated throughout the year, in recognition of a vast range of issues, occupations, activities and cultural values important to humanity. What better way to demonstrate the myriad functions of forests than to show that forests have a link to almost all of them? The Unasylva Editor, Andrea Perlis, has compiled a collec tion of images that illustrate these links. With only photos and the briefest of stories, the issue expresses the theme of the international year – “Forests for people” – by showing how forests are important to nearly all kinds of human activity. So when you celebrate Peace Day in 2011 – or International Women’s Day, or Human Rights Day, or World Health Day– even International Civil Aviation Day – you can celebrate forests.
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Book (series)GuidelineFisheries management, v. 4: Marine protected areas and fisheries 2011This document on Marine protected areas (MPAs) and fisheries has been developed to provide information and guidance on the use of marine protected areas (MPAs) in the context of fisheries. As MPA implementation moves ahead in the arena of marine biodiversity conservation, many people feel that the fisheries aspects are not fully understood nor always appropriately taken into account, and that guidance specific to this sector is needed. These Guidelines look specifically at fisheries features of MPAs, but also address the interface between fisheries management and biodiversity conservation and provide support for MPAs with multiple objectives. The document highlights the need for increased coordination across sectors and agencies/departments. Integration of diverse interests and viewpoints is required if we are to successfully manage our oceans and their resources for future generations. As with all fisheries management, good governance – including adequate stakeholder participation – i s key to successful and equitable management outcomes.