Biometry and reproductive biology of Pseudonereis anomala Gravier 1901 (Polychaeta: Nereididae) on the Alexandria coast, Egypt

Assessment of the Physico-chemical Characteristics and Water Quality Analysis of Mariout Lake, Southern of Alexandria, Egypt

“…On the other hand, El-Mex Bay station (V) representing seawater indicates a reversible trend where the highest level was recorded during winter (37.055%) and the lowest during spring (27.010%), with an annual average of 32.296%. Regionally, the salinity values showed noticeable local variations where the annual salinity averages increased seawards started with 4.762% at El Kalaa site (I) to 7.973% at El-Umum Drain outlet site (IV) reaching maximum level at El-Mex Bay (St.V) 32.296% ( Figure 7) [30][31][32].…”

Impacts of different drains on the seawater quality of El-Mex bay (Alexandria, Egypt)

“…DO concentrations of the present study are compared to previous studies in El Mex area by Hamdy et al (2014); Okbah et al (2013); Shredeah et al (2013) with reported ranges of 4. 4-14.6, 1.17-8.45, 1.11-4.66.…”

“…It receives a heavy load of wastewater (2.4×10 9 m 3 /year) both directly to the sea from industrial outfalls and indirectly from Lake Mariut via El-Mex pumping station (Shriadah and Emara, 1992a, b;Emara et al, 1992;Said et al, 1994). The physico-chemical characteristics of El-Mex area have been studied by many authors (Shriadah and Emara, 1996;Emara et al, 1992;Said et al, 1994;Tayel et al, 1996;Mahmoud et al, 2005;Shreadah et al, 2006a, b;Zakaria et al, 2007;Abdallah, 2008;Nassim et al 2010;El Zokm et al, 2012;Fathy et al, 2012;Okbah et al, 2013;Hamdy et al, 2014). Degradation of water quality due to land-based pollution is a serious problem in the Mediterranean coastal areas.…”

Morphometric and molecular characterization of an expanding Ionian population of the firewormHermodice carunculata(Annelida)

“…Although numerous studies have been done on the identification, abundance and distribution of several polychaete species, in some cases very little attention has been drawn to their biometry (Hamdy et al ., 2014). Morphometric parameters and body-size relationships are essential to establish growth patterns and characterize population structure, as well as recruitment.…”

“…Morphometric parameters and body-size relationships are essential to establish growth patterns and characterize population structure, as well as recruitment. Overall morphological, ecological, genetic and reproductive attributes contribute to species characterization, while examination of morphometric parameters is fundamental to studies of individual size, population dynamics and interpopulation variation (Rice et al ., 2008; Garraffoni et al ., 2010; Pardo et al ., 2010; Hamdy et al ., 2014). This is especially true for cosmopolitan species which are widely distributed, at least occurring in both major ocean basins (i.e.…”