Table S1: Geographical locations, sample abbreviations and haplotypes of Auxis rochei, Euthynnus alletteratus and Scomber colias used in this study

Species / Specimen number / Locality / Coordinates / Haplotype / Accession GenBank
Auxis rochei / Axr1 / Mahdia / 35°29'57''N
11°05'11''E / H1 / KJ573169
Axr2 / H2 / KJ573170
Axr3 / H3 / KJ573171
Axr4 / H4 / KJ573172
Axr5 / H5 / KJ573173
Axr6 / H6 / KJ573174
Axr7 / H7 / KJ573175
Axr8 / H8 / KJ573176
Axr9 / H9 / KJ573177
Axr10 / H10 / KJ573178
Axr11 / H11 / KJ573179
Axr12 / H12 / KJ573180
Axr13 / H13 / KJ573181
Axr14 / H14 / KJ573182
Axr15 / H15 / KJ573183
Axr16 / H16 / KJ573184
Axr17 / H17 / KJ573185
Axr18 / H18 / KJ573186
Axr19 / H19 / KJ573187
Axr20 / H20 / KJ573188
Axr21 / H21 / KJ573189
Axr22 / H22 / KJ573190
Axr23 / H23 / KJ573191
Axr24 / H24 / KJ573192
Axr25 / H25 / KJ573193
Axr26 / H26 / KJ573194
Axr27 / H27 / KJ573195
Axr28 / H28 / KJ573196
Axr29 / H29 / KJ573197
Axr30 / H30 / KJ573198
Axr31 / H31 / KJ573199
Axr32 / H32 / KJ573200
Axr33 / H3 / KJ573201
Axr34 / H33 / KJ573202
Axr35 / H34 / KJ573203
Axr36 / H35 / KJ573204
Axr37 / H36 / KJ573205
Axr38 / H37 / KJ573206
Axr39 / H7 / KJ573207
Axr40 / H38 / KJ573208
Axr41 / H39 / KJ573209
Axr42 / H40 / KJ573210
Axr43 / H41 / KJ573211
Axr44 / H42 / KJ573212
Axr45 / H43 / KJ573213
Axr46 / H44 / KJ573214
Axr47 / H45 / KJ573215
Axr48 / H46 / KJ573216
Axr49 / H47 / KJ573217
Axr50 / H48 / KJ573218
Axr53 / Sidi Daoud / 37°01'17''N
10°54'23''E / H47 / KJ573219
Axr54 / H49 / KJ573220
Axr55 / H50 / KJ573221
Axr56 / H51 / KJ573222
Axr57 / H52 / KJ573223
Axr58 / H53 / KJ573224
Axr59 / H54 / KJ573225
Axr60 / H55 / KJ573226
Axr61 / H56 / KJ573227
Axr62 / H57 / KJ573228
Axr63 / H58 / KJ573229
Axr64 / H59 / KJ573230
Axr65 / H26 / KJ573231
Axr66 / H60 / KJ573232
Axr67 / H61 / KJ573233
Axr68 / H62 / KJ573234
Axr69 / H63 / KJ573235
Axr70 / H64 / KJ573236
Axr71 / H65 / KJ573237
Axr72 / H26 / KJ573238
Axr73 / H66 / KJ573239
Axr74 / H67 / KJ573240
Axr75 / H44 / KJ573241
Axr76 / H68 / KJ573242
Axr77 / H69 / KJ573243
Axr78 / H70 / KJ573244
Axr79 / H71 / KJ573245
Axr80 / H72 / KJ573246
Axr81 / H73 / KJ573247
Axr82 / H74 / KJ573248
Axr83 / H75 / KJ573249
Axr84 / H76 / KJ573250
Axr85 / H77 / KJ573251
Axr86 / H61 / KJ573252
Axr87 / H78 / KJ573253
Axr88 / H79 / KJ573254
Axr89 / H80 / KJ573255
Axr90 / H81 / KJ573256
Axr91 / H82 / KJ573257
Axr92 / H83 / KJ573258
Axr93 / H84 / KJ573259
Axr94 / H85 / KJ573260
Axr95 / H86 / KJ573261
Axr96 / H33 / KJ573262
Axr97 / H87 / KJ573263
Axr98 / H66 / KJ573264
Axr99 / H88 / KJ573265
Axr100 / H68 / KJ573266
Axr242 / Ghar el Melh / 37°10'07''N
10°10'56''E / H89 / KJ573267
Axr243 / H90 / KJ573268
Axr244 / H91 / KJ573269
Axr245 / H92 / KJ573270
Axr246 / H50 / KJ573271
Axr247 / H93 / KJ573272
Axr248 / H13 / KJ573273
Axr249 / H5 / KJ573274
Axr250 / H94 / KJ573275
Axr251 / H95 / KJ573276
Euthynnus alleterratus / Eall001 / Zarzis / 33°30'08''N
11°07'27''E / H1 / KJ573277
Eall002 / Zarzis / H2 / KJ573278
Eall003 / Zarzis / H2 / KJ573279
Eall004 / Zarzis / H3 / KJ573280
Eall005 / Zarzis / H4 / KJ573281
Eall007 / Zarzis / H2 / KJ573282
Eall008 / Zarzis / H2 / KJ573283
Eall009 / Zarzis / H5 / KJ573284
Eall010 / Zarzis / H6 / KJ573285
Eall011 / Zarzis / H2 / KJ573286
Eall012 / Zarzis / H6 / KJ573287
Eall013 / Zarzis / H7 / KJ573288
Eall014 / Zarzis / H2 / KJ573289
Eall015 / Zarzis / H2 / KJ573290
Eall016 / Zarzis / H2 / KJ573291
Eall017 / Zarzis / H8 / KJ573292
Eall018 / Zarzis / H9 / KJ573293
Eall019 / Zarzis / H2 / KJ573294
Eall020 / Zarzis / H2 / KJ573295
Eall021 / Zarzis / H2 / KJ573296
Eall022 / Zarzis / H2 / KJ573297
Eall023 / Zarzis / H10 / KJ573298
Eall026 / Zarzis / H11 / KJ573299
Eall027 / Zarzis / H5 / KJ573300
Eall030 / Zarzis / H12 / KJ573301
Eall052 / Zarzis / H2 / KJ573322
Eall053 / Zarzis / H18 / KJ573323
Eall055 / Zarzis / H19 / KJ573324
Eall056 / Zarzis / H2 / KJ573325
Eall057 / Zarzis / H20 / KJ573326
Eall058 / Zarzis / H2 / KJ573327
Eall059 / Zarzis / H2 / KJ573328
Eall060 / Zarzis / H2 / KJ573329
Eall032 / Mahdia / 35°29'57''N
11°05'11''E / H2 / KJ573302
Eall033 / Mahdia / H2 / KJ573303
Eall034 / Mahdia / H2 / KJ573304
Eall035 / Mahdia / H13 / KJ573305
Eall036 / Mahdia / H2 / KJ573306
Eall037 / Mahdia / H2 / KJ573307
Eall038 / Mahdia / H2 / KJ573308
Eall039 / Mahdia / H14 / KJ573309
Eall040 / Mahdia / H4 / KJ573310
Eall041 / Mahdia / H15 / KJ573311
Eall042 / Mahdia / H2 / KJ573312
Eall043 / Mahdia / H16 / KJ573313
Eall044 / Mahdia / H2 / KJ573314
Eall045 / Mahdia / H2 / KJ573315
Eall046 / Mahdia / H2 / KJ573316
Eall047 / Mahdia / H9 / KJ573317
Eall048 / Mahdia / H17 / KJ573318
Eall049 / Mahdia / H13 / KJ573319
Eall050 / Mahdia / H2 / KJ573320
Eall051 / Mahdia / H2 / KJ573321
Eall061 / Mahdia / H2 / KJ573330
Eall062 / Mahdia / H18 / KJ573331
Eall063 / Mahdia / H21 / KJ573332
Eall064 / Mahdia / H2 / KJ573333
Eall065 / Mahdia / H2 / KJ573334
Eall066 / Mahdia / H18 / KJ573335
Eall067 / Mahdia / H2 / KJ573336
Eall068 / Mahdia / H2 / KJ573337
Eall069 / Mahdia / H2 / KJ573338
Eall070 / Mahdia / H9 / KJ573339
Eall071 / Mahdia / H14 / KJ573340
Eall072 / Mahdia / H2 / KJ573341
Eall073 / Mahdia / H2 / KJ573342
Eall074 / Mahdia / H2 / KJ573343
Eall075 / Mahdia / H2 / KJ573344
Eall076 / Mahdia / H2 / KJ573345
Eall077 / Mahdia / H12 / KJ573346
Eall078 / Mahdia / H2 / KJ573347
Eall079 / Mahdia / H2 / KJ573348
Eall080 / Mahdia / H2 / KJ573349
Scomber colias / Ssco27 / Mahdia / 35°29'57''N
11°05'11''E / H1 / KJ578924
Ssco28 / H2 / KJ578925
Ssco33 / H3 / KJ578926
Ssco34 / H4 / KJ578927
Ssco101 / H70 / KJ579021
Ssco102 / H5 / KJ579022
Ssco103 / H71 / KJ579023
Ssco104 / H72 / KJ579024
Ssco108 / H73 / KJ579025
Ssco112 / H74 / KJ579026
Ssco113 / H75 / KJ579027
Ssco116 / H76 / KJ579028
Ssco119 / H34 / KJ579029
Ssco120 / H77 / KJ579030
Ssco121 / H67 / KJ579031
Ssco128 / H78 / KJ579032
Ssco132 / H79 / KJ579033
Ssco133 / H80 / KJ579034
Ssco134 / H81 / KJ579035
Ssco135 / H1 / KJ579036
Ssco136 / H82 / KJ579037
Ssco137 / H5 / KJ579038
Ssco140 / H83 / KJ579039
Ssco141 / H84 / KJ579040
Ssco142 / H85 / KJ579041
Ssco145 / H5 / KJ579042
Ssco171 / H5 / KJ579043
Ssco175 / H77 / KJ579044
Ssco177 / H86 / KJ579045
Ssco178 / H1 / KJ579046
Ssco179 / H64 / KJ579047
Ssco180 / H34 / KJ579048
Ssco181 / H87 / KJ579049
Ssco187 / H1 / KJ579050
Ssco188 / H88 / KJ579051
Ssco 189 / H12 / KJ579052
Ssco 190 / H88 / KJ579053
Ssco49 / Zarzis / 33°30'08''N
11°07'27''E / H5 / KJ578928
Ssco50 / H6 / KJ578929
Ssco51 / H5 / KJ578930
Ssco52 / H7 / KJ578931
Ssco53 / H8 / KJ578932
Ssco54 / H1 / KJ578933
Ssco55 / H9 / KJ578934
Ssco56 / H1 / KJ578935
Ssco57 / H5 / KJ578936
Ssco58 / H10 / KJ578937
Ssco60 / H11 / KJ578938
Ssco61 / H12 / KJ578939
Ssco62 / H1 / KJ578940
Ssco63 / H13 / KJ578941
Ssco64 / H4 / KJ578942
Ssco65 / H1 / KJ578943
Ssco66 / H13 / KJ578944
Ssco67 / H14 / KJ578945
Ssco68 / H15 / KJ578946
Ssco69 / H16 / KJ578947
Ssco70 / H5 / KJ578948
Ssco71 / H1 / KJ578949
Ssco73 / H17 / KJ578950
Ssco74 / H5 / KJ578951
Ssco75 / H18 / KJ578952
Ssco76 / H1 / KJ578953
Ssco77 / H19 / KJ578954
Ssco78 / H20 / KJ578955
Ssco79 / H1 / KJ578956
Ssco80 / H21 / KJ578957
Ssco81 / H22 / KJ578958
Ssco82 / H23 / KJ578959
Ssco83 / H24 / KJ578960
Ssco85 / H25 / KJ578961
Ssco86 / H1 / KJ578962
Ssco87 / H26 / KJ578963
Ssco88 / H27 / KJ578964
Ssco89 / H28 / KJ578965
Ssco91 / H29 / KJ578966
Ssco92 / H30 / KJ578967
Ssco94 / H31 / KJ578968
Ssco95 / H13 / KJ578969
Ssco96 / H32 / KJ578970
Ssco97 / H33 / KJ578971
Ssco98 / H34 / KJ578972
Ssco275 / Ghar El Melh / 37°10'07''N
10°10'56''E / H35 / KJ578973
Ssco276 / H36 / KJ578974
Ssco277 / H37 / KJ578975
Ssco278 / H38 / KJ578976
Ssco279 / H39 / KJ578977
Ssco281 / H13 / KJ578978
Ssco282 / H40 / KJ578979
Ssco283 / H41 / KJ578980
Ssco284 / H42 / KJ578981
Ssco285 / H43 / KJ578982
Ssco286 / H44 / KJ578983
Ssco287 / H37 / KJ578984
Ssco288 / H5 / KJ578985
Ssco289 / H1 / KJ578986
Ssco290 / H45 / KJ578987
Ssco291 / H46 / KJ578988
Ssco293 / H47 / KJ578989
Ssco294 / H48 / KJ578990
Ssco295 / H49 / KJ578991
Ssco296 / H50 / KJ578992
Ssco297 / H51 / KJ578993
Ssco298 / H41 / KJ578994
Ssco299 / H46 / KJ578995
Ssco300 / H37 / KJ578996
Ssco301 / H52 / KJ578997
Ssco302 / H53 / KJ578998
Ssco303 / H54 / KJ578999
Ssco304 / H55 / KJ579000
Ssco305 / H8 / KJ579001
Ssco306 / H56 / KJ579002
Ssco307 / H57 / KJ579003
Ssco308 / H3 / KJ579004
Ssco309 / H58 / KJ579005
Ssco310 / H59 / KJ579006
Ssco311 / H1 / KJ579007
Ssco312 / H60 / KJ579008
Ssco313 / H1 / KJ579009
Ssco314 / H61 / KJ579010
Ssco315 / H62 / KJ579011
Ssco316 / H63 / KJ579012
Ssco317 / H5 / KJ579013
Ssco318 / H64 / KJ579014
Ssco319 / H22 / KJ579015
Ssco320 / H65 / KJ579016
Ssco321 / H66 / KJ579017
Ssco322 / H67 / KJ579018
Ssco323 / H68 / KJ579019
Ssco324 / H69 / KJ579020