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

Table 3 GI-tract motility patterns - quantification

		Stomach		Midgut 1				Midgut 2				Hindgut		Rectal area
		Stomach		*Propagating*		*Phasic*		*Propagating*		*Phasic*		Hindgut		Rectal area
	Larva	n	Frequency (min^-1)	n	Frequency (min^-1)	n	Frequency (min^-1)	n	Frequency (min^-1)	n	Frequency (min^-1)	n	Frequency (min^-1)	n	Frequency (min^-1)
Stage 6	1	-	-	14	2.31	50	1.69	57	1.84	79	3.54	13	1.46	161	5.24
	2	-	-	26	1.81	-	-	95	3.77	12	0.44	15	0.54	3	0.22
	3	17	0.56	5	0.31	4	0.24	28	1.66	77	3.01	-	-	96	3.22
	4*	-	-	-	-	-	-	-	-	-	-	43	2.25	25	1.69
Stage 9	1	11	2.37	-	-	-	-	-	-	-	-	1	-	11	1.44
	2	10	0.90	-	-	-	-	-	-	-	-	-	-	11	0.41
	3	4	0.44	-	-	-	-	9	3.83	-	-	-	-	13	0.46
	4	4	0.56	-	-	3	1.13	-	-	-	-	12	1.12	24	0.81

Propagating and phasic contractions are stated for midgut 1 and midgut 2 regions. Frequency is the number of contractions registered (n) per min.
*Not possible to quantify phasic and propagating wave contractions. The affected GI-tract segments were constantly (tonic) contracted during the whole observation period (see Additional file 7).

ISSN: 1471-213X