Functional modifications associated with gastrointestinal tract organogenesis during metamorphosis in Atlantic halibut (Hippoglossus hippoglossus)

Table 1 GI-tract organ volume (nl) and surface area (10⁶ μm²)

	Stage 3	Stage 4	Stage 5	Stage 6	Stage 9A	Stage 10
GI-tract outer layer (nl)	157.42	261.03	490.65	1038.48	2670.15	12855.10
GI-tract outer layer (10⁶ μm²)	3.59	5.12	6.74	10.07	20.53	63.38
GI-tract inner layer (nl)	78.40	136.84	266.55	525.89	1034.10	6451.16
GI-tract inner layer (10⁶ μm²)	2.83	4.73	9.60	16.34	50.45	54.76
GI-tract tissue volume^a (nl)	79.02	124.19	224.10	512.59	1636.05	6403.94
Liver (nl)	35.24	48.82	98.18	225.23	928.25	4232.77
Pancreas (nl)	13.79	21.42	37.91	109.08	471.25	463.79
Islets of langerhans (nl)	0.50	0.46	0.57	1.05	5.33	11.73
Presumptive stomach (nl)	15.51	27.29	32.06	84.09	414.54	4932.67

ISSN: 1471-213X