High fishing pressure on elasmobranchs had caused declines in their populations worldwide, though these declines may not always be observed due to lack of monitoring. The Longnose stingray Hypanus guttatus is one of the most abundant and captured species in Northeast Brazil, mainly as bycatch by shrimp trawl. We aimed to estimate how the population of H. guttatus behaves in the face of different fishing pressures in the Northeast. For this purpose, we used a life matrix analysis from the metadata of three studies in the Northeast of Brazil (Bahia, Alagoas and Rio Grande do Norte). The average annual population growth rate estimated for the three states was strongly negative ($-11.83$%). However, there was considerable regional variation: data from Bahia showed in fact a low level of positive growth (3.24%) compared to the severe population decline ($-29.47$% per year) in Rio Grande do Norte, caused by the high mortality from shrimp trawling We conclude that the Longnose stingray has a high risk of long-term population decline in Northeastern Brazil, mainly caused by the high capture rate of juveniles.

弹bra的高捕捞压力导致其全球范围内的种群数量下降，尽管由于缺乏监测而未必总是能观察到这种数量的下降。Longnose黄貂鱼Hypanus guttatus是巴西东北部最丰富，捕获最多的物种之一，主要是虾拖网的兼捕。我们的目的是估计面对东北部不同的捕鱼压力，H。guttatus种群的行为。为此，我们使用了巴西东北部三项研究（巴伊亚，阿拉戈斯和北里奥格兰德州）的元数据进行的生命矩阵分析。估计这三个州的年平均人口增长率为极负（$-11。83$％）。但是，区域差异很大：来自巴伊亚州的数据显示，与人口的严重减少相比，实际的正增长水平较低（3.24％）（$-29。47$虾拖网造成的高死亡率造成了在北里奥格兰德州的每年百分比）我们得出的结论是，长鼻st鱼在巴西东北部有长期种群长期减少的高风险，这主要是由于幼鱼的高捕获率造成的。