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Guide for identification of IOTC species

Swordfish
(Xiphias gladius)

Countable characteristics

D XXXVIII~XXXXV -4~5
A XII~XVI -3~4
P1 17~19

Distribution

Worldwide / Temperate and tropical area

Maximum size

536 kg (IGFA all-takle game fish record)

Notes

Easly identified by lack of pelvic fin and scales. Also this species have only one keel at the caudal peduncle which is different from other billfishes.

Characteristics of the body

↑　Absence of pelvic fin

↑　Absence of scales

↑　Single keel

Example of Size (LJFL) and weight relationship

Following equation of Mejuto et al., 1988, ICCAT derived from Atlantic Ocean, Spanish longline fishery data

Lower Jaw FL (cm)	BW (kg)
80	5.5
81	5.7
82	5.9
83	6.2
84	6.4
85	6.7
86	6.9
87	7.2
88	7.4
89	7.7
90	8
91	8.3
92	8.6
93	8.9
94	9.2
95	9.5
96	9.8
97	10.2
98	10.5
99	10.9
100	11.2
101	11.6
102	12
103	12.3
104	12.7
105	13.1
106	13.5
107	14
108	14.4
109	14.8
110	15.3
111	15.7
112	16.2
113	16.6
114	17.1
115	17.6
116	18.1
117	18.6
118	19.1
119	19.6
120	20.2
121	20.7
122	21.3
123	21.8
124	22.4
125	23
126	23.6
127	24.2
128	24.8
129	25.5
130	26.1
131	26.7
132	27.4
133	28.1
134	28.8
135	29.5
136	30.2
137	30.9
138	31.6
139	32.4
140	33.1
141	33.9
142	34.7
143	35.4
144	36.2
145	37.1
146	37.9
147	38.7
148	39.6
149	40.4
150	41.3
151	42.2
152	43.1
153	44
154	45
155	45.9
156	46.9
157	47.8
158	48.8
159	49.8
160	50.8
161	51.9
162	52.9
163	54
164	55
165	56.1
166	57.2
167	58.3
168	59.5
169	60.6
170	61.8
171	63
172	64.2
173	65.4
174	66.6
175	67.8
176	69.1
177	70.3
178	71.6
179	72.9

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