Fishing gears, catch composition and length at first capture of the common fish species in Bardawil lagoon, Egypt

The Effect Of Hook Size On Size Selectivity In Bardawil Lagoon Artisanal Longline Fishery, Eastern Mediterranean, Egypt

“…10). In all cases, it is lear that the length at first capture is smaller than the length at first sexual maturity reported for these species in the previous studies (Table 1) indicating the overexploitation situation due to the unsuitable hook sizes used in Bardawil lagoon (Mehanna and Khalil, 2006;Mehanna, 2007;Salem, 2011a&b, 2018Salem, 2011a&b, , 2019Mehanna et al, 2010;Al-Zahaby et al, 2018;Mehanna et al, 2020).…”

“…He observed the total length of D. labrax ranged from 18.2 to 64.7 cm TL. Aabed (2020) and Mehanna et al (2020) found that European seabass D. labrax length were ranged in his study from 20.0 to 55.7 cm total length.The catch rates of European seabass were significantly different among hook sizes during the experiment forming 2.9, 4.3 and 3.4 individual/100 hooks for the three sizes respectively. The hook No.…”

“…Generally, the fish production in Bardawil lagoon showed a decreasing trend during the period of study and the same trend is noticed for all the commercial species except for European seabass and grey mullet (GAFRD, 2018). For shrimp, a sharp decreasing trend was observed since 2015 this coincide with banning the kalsa fishing gear (bottom trawl net) (Mehanna, 2006a(Mehanna, & 2013GAFRD, 2018;Salem, 2018&2019;Mehanna et al, 2020;Aabed, 2020).…”

“…Very rare investigations based on scientific research were found on fishing gears and its selectivity in Bardawil lagoon particularly (Salem, 2018;Mehanna et al, 2020) and in Egyptian marine fisheries in general. Because the effective fishery management requires a good knowledge on fishing gears, the present work was done to evaluate the impact of hook size on size selectivity in Bardawil lagoon artisanal longline fishery, eastern Mediterranean, Egypt.…”

Age, growth and mortality of the Bartail Flathead (Platycephalus indicus) in Bardawil lagoon, North Sinai, Egypt.

“…Although it is shallow and oligotrophic (Touliabah et al, 2002), it is one of the most important lakes in Egypt as a source of good quality fish and a habitat for wildlife (Khalil and Shaltout, 2006;Mehanna, 2006a,b,c). The lagoon is considered the main ecological and economic natural resource in North Sinai region (Mehanna, 2006b;Mehanna, 2013;Mehanna et al, 2020).…”