Is Sexual Size Dimorphism Inherent in the Scallop Patinopecten yessoensis?

Table 3

Patinopecten yessoensis. Wet weight and size parameters of the same aged males and females from the population inhabiting Vityaz Bay. indicates significant differences between parameters at a level (-test). Bold marks higher values. is sample size.

Parameters, g	Males	Females
6-year-olds
Total weight		369.4 ± 11.7	0.0343
Adductor muscle weight	60.3 ± 2.9	56.4 ± 1.7	0.0732
Shell weight		169.8 ± 6.0	0.0445
Remains of soft tissues without gonads	59.5 ± 3.3	58.7 ± 3.2	0.0951
Shell height	142.7 ± 4.3	142.5 ± 4.0	0.8176
Shell length	152.5 ± 4.3	152.3 ± 3.9	0.8627
Shell width	39.8 ± 1.0	38.7 ± 0.8	0.0989
7-year-olds
Total weight		429.3 ± 17.5	0.0463
Adductor muscle weight	69.5 ± 2.2	64.4 ± 4.5	0.0627
Shell weight		193.9 ± 7.2	0.0382
Remains of soft tissues without gonads	68.0 ± 3.9	65.9 ± 4.0	0.0678
Shell height	151.5 ± 2.8	150.3 ± 1.1	0.6897
Shell length	161.1 ± 2.8	158.5 ± 3.6	0.3625
Shell width	42.1 ± 1.6	41.7 ± 1.4	0.0998
8-year-olds
Total weight		459.5 ± 16.2	0.0373
Adductor muscle weight	74.0 ± 1.5	68.8 ± 4.6	0.0727
Shell weight		211.2 ± 5.7	0.0382
Remains of soft tissues without gonads	75.5 ± 5.2	73.6 ± 5.2	0.0853
Shell height	155.5 ± 4.4	153.8 ± 2.9	0.4837
Shell length	164.3 ± 4.6	162.2 ± 3.3	0.2685
Shell width	43.3 ± 0.8	42.4 ± 0.8	0.0989
9-year-olds
Total weight	530.5 ± 18.8	510.7 ± 14.6	0.1273
Adductor muscle weight		68.5 ± 4.5	0.0491
Shell weight	240.2 ± 12.4	233.4 ± 10.9	0.2482
Remains of soft tissues without gonads	83.3 ± 8.4	82.2 ± 6.6	0.1659
Shell height	158.7 ± 1.3	158.5 ± 2.3	0.8184
Shell length	168.0 ± 2.6	168.3 ± 3.8	0.8020
Shell width	42.2 ± 0.9	43.1 ± 0.6	0.0856