Veterinary clinical pathology · 2026
Preliminary Reference Interval Estimation for Hemolymph Analysis in Free-Ranging Mangrove Horseshoe Crab (Carcinoscorpius rotundicauda).
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Naher Farsia, Hossain Md Nayeem, Pasha Md Ridoan, John Akbar, Nahid Sk Ahmad Al
Аннотация
BACKGROUND: The mangrove horseshoe crab (Carcinoscorpius rotundicauda), a species thriving in the muddy brackish waters of Cox's Bazar, holds significant ecological and biomedical value. Hematological and biochemical analyses can serve as a valuable diagnostic tool for assessing health; however, reports remain limited for horseshoe crabs.
OBJECTIVE: This study investigated hemolymph values to determine preliminary reference intervals (RIs) from free-ranging mangrove horseshoe crabs.
METHODS: Forty adult Carcinoscorpius rotundicauda (20 males, 20 females) were collected from intertidal zones of Cox's Bazar in February 2024. Hemolymph was extracted by cardiac puncture under cold anesthesia for amebocyte counting and biochemical profiling. Plasma metabolites, enzymes, and electrolytes were analyzed using a standard automated laboratory biochemistry analyzer (Humalyzer 3000, Human Diagnostics, Germany), and data were statistically evaluated in accordance with established guidelines.
RESULTS: Total amoebocyte counts demonstrated substantial variability (RI: 0.6-38.5 × 106 cells/mL). This study found significantly (p < 0.05) higher levels of cholesterol, triglycerides, chloride (Cl-), calcium (Ca2+), magnesium (Mg2+), and aspartate aminotransferase (AST) in female horseshoe crabs, whereas alanine aminotransferase (ALT) activity was significantly higher in males. In contrast, no significant (p > 0.05) differences between sexes were observed in glucose, total protein, albumin, alkaline phosphatase (ALP), uric acid, creatinine, urea, blood urea nitrogen (BUN), sodium (Na+), potassium (K+), and amebocyte counts. Reference intervals (RIs) were established after excluding outliers identified across multiple measurands in both sexes.
CONCLUSION: This study provides baseline data and underscores the need for further research, particularly across different seasons, to enhance the suitability and applicability of the established RIs.
OBJECTIVE: This study investigated hemolymph values to determine preliminary reference intervals (RIs) from free-ranging mangrove horseshoe crabs.
METHODS: Forty adult Carcinoscorpius rotundicauda (20 males, 20 females) were collected from intertidal zones of Cox's Bazar in February 2024. Hemolymph was extracted by cardiac puncture under cold anesthesia for amebocyte counting and biochemical profiling. Plasma metabolites, enzymes, and electrolytes were analyzed using a standard automated laboratory biochemistry analyzer (Humalyzer 3000, Human Diagnostics, Germany), and data were statistically evaluated in accordance with established guidelines.
RESULTS: Total amoebocyte counts demonstrated substantial variability (RI: 0.6-38.5 × 106 cells/mL). This study found significantly (p < 0.05) higher levels of cholesterol, triglycerides, chloride (Cl-), calcium (Ca2+), magnesium (Mg2+), and aspartate aminotransferase (AST) in female horseshoe crabs, whereas alanine aminotransferase (ALT) activity was significantly higher in males. In contrast, no significant (p > 0.05) differences between sexes were observed in glucose, total protein, albumin, alkaline phosphatase (ALP), uric acid, creatinine, urea, blood urea nitrogen (BUN), sodium (Na+), potassium (K+), and amebocyte counts. Reference intervals (RIs) were established after excluding outliers identified across multiple measurands in both sexes.
CONCLUSION: This study provides baseline data and underscores the need for further research, particularly across different seasons, to enhance the suitability and applicability of the established RIs.