Size selectivity and optimal soaking time of hoops and traps targeting the blue swimming crab Callinectes arcuatus in Cuyutlan Lagoon, Mexico

IF 0.1 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY
Mauricio Salas-Maldonado, E. Espino-Barr, Emigdio Marín-Enríquez, Alberto Bartoleño-Sánchez, Leonardo Daniel Valdez-Carrazco
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引用次数: 0

Abstract

The selectivity of two types of commercial fishing gear (crab hoop/traditional gear and rigid rectangular cage traps) targeting blue crabs (Callinectes arcuatus) in Cuyutlan Lagoon, Mexico, was assessed. The effect of soak time on crab catches versus the retention and escape rate of organisms was also evaluated. Results suggested that traps captured larger individuals than hoops. The carapace width of crabs was significantly different between the fishing gears used: 63.9% of crabs caught with hoops were < 95 mm (sizes ranged from 40 to 113 mm) and 40.7% of crabs caught with traps were < 95 mm (range: 49 to 120 mm). Results also showed that catch rates were high during the first two hours and decreased after the third hour. The crabs tended to escape after several hours of soak time. The study found that the traps captured larger crabs than the hoops, suggesting that traps are a suitable fishing gear for catching blue swimming crabs in Cuyutlan Lagoon.
墨西哥Cuyutlan泻湖中以蓝色梭子蟹为目标的环和陷阱的尺寸选择性和最佳浸泡时间
评估了两种针对墨西哥库尤特兰泻湖蓝蟹(圆唇蟹)的商业渔具(蟹箍/传统渔具和刚性矩形网箱陷阱)的选择性。还评估了浸泡时间对螃蟹捕获量与生物体滞留率和逃逸率的影响。结果表明,陷阱捕获的个体比箍捕获的个体大。使用不同渔具的螃蟹的甲壳宽度有显著差异:63.9%的用环捕获的螃蟹小于95毫米(尺寸从40到113毫米不等),40.7%的用陷阱捕获的螃蟹<95毫米(范围:49到120毫米)。结果还表明,前两个小时的捕获率很高,第三个小时后下降。螃蟹在浸泡几个小时后往往会逃跑。研究发现,陷阱捕获的螃蟹比环更大,这表明陷阱是在Cuyutlan泻湖捕获蓝色梭子蟹的合适渔具。
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来源期刊
CiteScore
0.70
自引率
0.00%
发文量
41
审稿时长
12 months
期刊介绍: Publicar desde una perspectiva científica, artículos originales, decididos por un proceso de revisión por pares, invitando a expertos de reconocido prestigio en el área. Los trabajos publicados se caracterizarán por su solidez teórica-metodológica, actualidad y relevancia para las ciencias marinas. Se reciben trabajos inéditos derivados de la investigación científica realizada en ambientes marinos y estuarios, en formato de Revisión, Artículos, Notas Científicas, y Obituarios en las siguientes disciplinas:: Biología-Ecología marina Oceanografía física, química y biológica Contaminación marina Geología marina Sistemática, Faunística y Biogeografía Marina Manejo Costero Acuicultura marina Pesquería marina.
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