Comparative study of haematology of two teleost fish (Mugil cephalus and Carassius auratus) from different environments and feeding habits

Figures & data

Table I. Water physico-chemical characteristics for acclimation of Mugil cephalus and Carassius auratus.

Fish species	Temperature	pH	Conductivity	Dissolved oxygen (DO2)	Salinity	(NH3/NH4)
M. cephalus	18.2°C	8.23	47.6 mS/cm	5.7 mg/L	38°/oo	0.20 mg/L
C. auratus	18.1°C	8.01	342.1 μS/cm	5.3 mg/L	0.03°/oo	0.23 mg/L

Table II. Mean values ± standard error of the mean (SEM) of haematological parameters recorded in the two teleost species Mugil cephalus and Carassius auratus (*P < 0.05).

Haematological parameters	Mugil cephalus (n = 20)	Carassius auratus (n = 20)
RBC (×10^6/μL)	2.08 ± 0.16*	0.50 ± 0.01
Hct (%)	19.55 ± 1.86*	7.56 ± 0.12
Hgb (g/dL)	4.45 ± 0.33	4.18 ± 0.18
MCV (fL)	92.11 ± 2.10*	1152.80 ± 3.70
MCH (pg)	21.58 ± 0.36*	84.54 ± 3.79
MCHC (g/dL)	23.63 ± 0.61*	55.93 ± 2.72
WBC (× 10^3/μL)	30.08 ± 2.28*	66.35 ± 2.46
TC (× 10^3/μL)	27.96 ± 3.58*	83.75 ± 4.19

RBC, red blood cell count; Hct, haematocrit; Hgb, haemoglobin concentration; MCV, mean corpuscular volume; MCH, mean corpuscular haemoglobin; MCHC, mean corpuscular haemoglobin concentration; WBC, white blood cell count; TC, thrombocyte count.

Figure 1. Flow cytometry performed on blood samples of (a) the grey mullet Mugil cephalus and (b) the goldfish Carassius auratus. The score plots show a clear grouping of red blood cells (RBC; in orange), white blood cells (WBC; in blue), thrombocytes (TC; in green) and debris (in yellow).

Figure 2. Erythrocytes from (a) the grey mullet Mugil cephalus and (b) the goldfish Carassius auratus. Scale bars: 20 μm.