AGROVOC

Freshwater aquatic bird. A bird that lives on or about the water, especially a swimming game bird. (FAOTERM and Glossary of inland fishery terms, EIFAC Occasisonal Paper No. 12, FAO, 1978 (http://www.fao.org/3/ae987b/AE987B01.htm). )

Closed seasons are periods within which no fishing, hunting or capture of a specified animal is allowed by law. These periods coincide with the peak breeding seasons of the species, and are so instituted to allow the animals to mature and revive its population. For example, the banning of fishing activity (in an area or of an entire fishery) for a few weeks or months, usually to protect juveniles or spawners. (Adapted from Ministry of Agriculture, Fisheries and Mining of Jamaica, Closed Seasons https://www.moa.gov.jm/sites/default/files/pdfs/Closed%20Seasons.pdf and from FAO Fisheries and Aquaculture Department, FAO, 2014.)

The state of land in which the water table is located at or near the soil surface, affecting crop yields. (FAO. 2022. The State of the World’s Land and Water Resources for Food and Agriculture – Systems at breaking point. Main report. Rome. https://doi.org/10.4060/cb9910en)

A ridge of high land dividing two areas that are drained by different river systems or the boundary between two river systems. (AQUASTAT Glossary, FAO, 2019)

A chemical substance that is an organic compound or mixture of compounds that is composed of long-chain molecules and is malleable at ambient temperatures. (http://purl.obolibrary.org/obo/CHEBI_73702)

Waxy maize is composed entirely of amyl pectin, in contrast with common maize which contains approximately 78 percent of starch and 22 percent of amylose. This type of hybrid maize is used for specialty products of the wet-milling starch industry. (FAO, 2003. MAIZE: Post-Harvest Operations https://openknowledge.fao.org/handle/20.500.14283/av007e)

Feeding frequency refers to the number of times per day that feed (or food) is provided. (Adapted from Davis, Donald & Hardy, Ronald. (2022). Feeding and fish husbandry. 10.1016/B978-0-12-819587-1.00015-X.)

Weather modification (also known as weather control) is the act of intentionally manipulating or altering the weather. The most common form of weather modification is cloud seeding. (https://en.wikipedia.org/wiki/Weather_modification)

Ship motion is described by six degrees of freedom (6-DOF), represented by the ship's orientation in the operating environment. These are the roll, pitch, heave, sway, surge, and yaw motions. (Adumene, Sidum & Ikue-John, Hope. 2022. Offshore system safety and operational challenges in harsh Arctic operations. Journal of Safety Science and Resilience. 3. 10.1016/j.jnlssr.2022.02.001.)

Private, voluntary monetary and non-monetary (social or in-kind) transfers made by migrants and diaspora, individually or collectively, to people or communities not necessarily in their areas of origin. They can be cross-border or in the home country. (FAO, IFAD, UNICEF, WFP and WHO. 2024. The State of Food Security and Nutrition in the World 2024 – Financing to end hunger, food insecurity and malnutrition in all its forms. Rome. https://doi.org/10.4060/cd1254en)

A weather ship, or ocean station vessel, was a ship stationed in the ocean for surface and upper air meteorological observations for use in weather forecasting. (https://en.wikipedia.org/wiki/Weather_ship)

Macrophytes are aquatic plants growing in or near water. They may be either emergent (i.e., with upright portions above the water surface), submerged or floating. (https://www.epa.gov/national-aquatic-resource-surveys/indicators-macrophytes)

The degree of antigenic similarity between the tissues of different individuals, which determines the acceptance or rejection of allografts. (MeSH, 2024. Histocompatibility http://id.nlm.nih.gov/mesh/D006648)

A material transformation process during which the properties of a material are changed as a result of in situ exposure to atmospheric processes. (UNEP Plastic Pollution and Marine Litter Draft Glossary, accessed 29 May 2023)

A wild plant growing where it is not wanted and in competition with cultivated plants. (FAOLEX. 2025. Glossary https://www.fao.org/faolex/)