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MeetingMeeting documentPreliminary ecological risk assessment for the purse-seine fishery in the eastern Pacific Ocean 2013
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MeetingMeeting documentAcoustic Selectivity in Tropical Tuna (Experimental Purse-seine Campaign in the Indian Ocean) 2005
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MeetingMeeting documentStatistics of the European Union and associated flags purse seine fishing fleet targeting tropical tunas in the Indian Ocean 1981-2012 2013
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No results found.In 2012, the European Union and associated flags purse seine fishing fleet of the Indian Ocean was composed of 37 vessels of individual carrying capacity >800 t, which all represented a total carrying capacity of more than 45,000 t. The total cumulated nomil effort was about 9,500 and 7,800 fishing and searching days, respectively. The total number of fishing sets was about 9,000, with about 5,600 realised on FAD-associated schools (i.e. >60%). Overall, the capacity and nomil effort of the fleet have remained stable during the recent years while the total catches have significantly dropped from more than 260,000 t during 2009-2011 to less than 230,000 t in 2012. The decline in catch is mainly explained by a combition of a major decrease in the number of sets per day and catch rates of skipjack on FAD-associated schools, the catch of skipjack per positive set being the lowest observed since 1984, i.e. 15 t set−1. Catch rates of skipjack on free-swimming schools also strongly decreased, which resulted in an overall decrease of skipjack catch by more than 40% between 2009-2011 and 2012. Meanwhile, catch rates of yellowfin on both FAD-associated and free-swimming schools increased in the recent years, resulting in a total catch of yellowfin that increased in 2012 to 130,000 t. The strong reduction in the number of FAD sets resulted in a total catch of bigeye that reached 16,500 t in 2012.
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Book (series)FAO journal恢复地球—未来十年
Unasylva 252 - 2020年1月第71卷
2022本期Unasylva杂志旨在展示森林景观恢复（FLR）的机会和进展，这些机会和进展能扩大恢复的规模，以实现"波恩挑战"及其他国家和国际承诺（可持续发展目标（SDGs），《生物多样性公约》(CBD）2020年后议程、《联合国防治荒漠化公约》（UNCCD）土地退化零增长、《联合国气候变化框架公约》（UNFCCC）下的《巴黎协定》），并满足2021-2030年联合国生态系统恢复十年的需求。 杂志涉及与各受众相关的主题：i) 与所谓的 "一切照旧 "做法不同的旗舰恢复倡议，这些旗舰倡议能输送更多的资金，更好地赋予当地利益相关者权力，并通过合作伙伴联盟提供更多的技术援助；ii) 可以扩展森林景观恢复的技术进步，由于不同的原因（低成本、适应性、与许多生态系统和环境的相关性、易于实施等），这些技术进步很有可能成为主流。iii) 利于恢复的因素，即协调、政策环境、资源、知识和能力，这些因素都为在当地采取行动创造了有利条件。 -
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