The beach‐seine fishery is a commercial fishing activity on the Portuguese coast, with reports dating as far back as the early 15th century. The main target species of this fishery are small pelagic fish such as Atlantic chub mackerel, Atlantic horse mackerel and sardine. To identify the best conditions for fishing the target species, catches of beach seine (2007–2017) were used and generalized linear models were applied, using a binomial and gamma distributions. The logistic model explained between 36.3% and 45.7% of the catches variability; the gamma model explained 9.1% and 46.9% of the catches variability, being month and wind direction the best covariates for the occurrence and/or abundance of the three small pelagic fishes in analysis. If the effort is directed to the days that meet the conditions found for each species (sardine: between May and October, wind NW, daytime; Atlantic horse mackerel: May, NW/NE wind, 800 m from the coastline; Atlantic chub mackerel: from July to August, NW moderate wind), a reduction in bycatch and discards can be achieved. This approach can have a positive economic and social impact, since it provides information for turning fisheries more efficient.

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捕获海滩围网目标物种的最佳环境条件是什么？葡萄牙案例研究

海滩围网渔业是葡萄牙海岸的商业性捕鱼活动，据报道可追溯到15世纪初。该渔业的主要目标物种是小型远洋鱼类，例如大西洋Atlantic鱼，大西洋，鱼和沙丁鱼。为了确定捕捞目标物种的最佳条件，使用了海滩围网渔获物（2007-2017年），并使用二项分布和伽马分布应用了广义线性模型。逻辑模型解释了渔获量变化的36.3％至45.7％；伽马模型解释了渔获量变化的9.1％和46.9％，其中月份和风向是分析中三种小型远洋鱼类的发生和/或丰度的最佳协变量。如果努力是针对满足每个物种发现的条件的日子（沙丁鱼：在五月和十月之间，白天为西北风；大西洋鲭鱼：5月，西北风/西北风，距海岸线800 m；大西洋chu鱼：7月至8月，西北风适中），可减少兼捕和丢弃物。这种方法可以产生积极的经济和社会影响，因为它为提高渔业效率提供了信息。