Indian Journal of Ecology

The M'Diq beach has seen a successive outbreak's of Pelagia noctiluca starting in 2011. During the summer season, which is also known as the blooming and stranding's jellyfish season has severe impacts on regional activities. For this reason, this research aimed at documenting the mean causes of P. noctiluca outbreaks on our coastline. As a result, the simple linear tests shows that P. noctiluca outbreaks have a very significant linear relationship and are positively correlated to sea surface temperature with P= 0.0079 with y = 3.5254x - 59.616, R² = 0.2062, sea salinity P= 0.0029 with y =14.741x - 507.54, R2 = 0.2517 and waves high P= 0.000000002 with y = 20.473x - 4.4583, R2 = 0.6893. Moreover, the blooms of jellyfish along with the production of Pelagic fish and whitefish were respectively and share a strong correlation with P= 0.000001936, with y = -0.0079x + 40.881, R2 = 0.5063 for Pelagic fish and y = -0.0323x + 55.431, R2 = 0.3008 for whitefish production.