Time units
The calendar year (Gregorian calendar, ISO 8601), i.e. the period between 1 January and 31 December, is the annual time unit normally used in fishery statistics.
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For certain specific purposes (e.g. Antarctic fisheries, fiscal purposes) it may be deemed more appropriate to use a different 12-month period which may be referred to as a split year. Such situations arise when the sector under consideration exhibits appreciable...
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In tabulations where space restricts the labeling of a split year to a single year or where data for calendar and split years are tabulated together, the practice is for the split year to be represented by the calendar year...
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International Organization for Standardization (ISO). 2017. ISO 8601 Date and time format. [Cited 1 November 2020]. https://www.iso.org/iso-8601-date-and-time-format.html
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An ecosystem approach to fisheries strives to balance diverse social objectives, by taking into account the knowledge and uncertainties about biotic, abiotic, and human components of ecosystems and their interaction and applying an integrated approach to fisheries within ecological meaningful...
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Classically, fisheries statistics document those components of the catches that are landed whether fishing is for commercial or recreational purposes. Bycatch may include seabirds, marine mammals and non-commercial fish and invertebrates and such bycatch is often discarded is often not...
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Geological surveys provide information on sediment types and these data are useful in the identification of vulnerable habitats. Such data are not part of the fisheries statistics system although data are used in fisheries management.
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Statistics on social and economic aspects of fisheries are required as part of an ecosystem approach. These data are discussed in section on social and economic fisheries statistics.
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Documentation that fisheries impact is within sustainable limits is based on fisheries statistics supplemented with and analysis of these data normally summarized in the form of indicators. Such indicators are often related to reference points that have been agreed as...
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