Reproductive Biology and Fishery-Related Characteristics of the Malabar Grouper (Epinephelus malabaricus) Caught in the Coastal Waters of Mafia Island, Tanzania

Figure 3

Histological sections of male Epinephelus malabaricus maturation stages of (a) mature ripening (M2) collected 1 February 2010, 97 cm 𝐿_𝑇, 16 kg 𝑊_𝑇, 20.66 g 𝐺_𝑊; (c) resting male (M3) collected 20 February 2010, 109 cm 𝐿_𝑇, 23 kg 𝑊_𝑇, 39.11 g 𝐺_𝑊; (e) resting male (M3) collected 28 February 2010, 100 cm 𝐿_𝑇, 17 kg 𝑊_𝑇, 39.53 g 𝐺_𝑊; (g) mature ripening (M2) collected 23 January 2010, 105 cm 𝐿_𝑇, 18 kg 𝑊_𝑇, 26.87 g 𝐺_𝑊; (i) mature ripe (M4) collected 9 September 2010, 103 cm 𝐿_𝑇, 22 kg 𝑊_𝑇, 68.86 g 𝐺_𝑊. BB: brown bodies, GW: gonadal wall, 𝐺_𝑊: gonad weight, 𝐿_𝑇: total length, LU: lumen, SC: spermatocytes, SG: spermatogonia, SS: sperm sinus, ST: spermatid, SZ: spermatozoa, TT: testicular tissues.