Biochemical and hematological parameters in European sea bass (Dicentrarchus labrax Linnaeus, 1758) and Gilthead sea bream (Sparus aurata Linnaeus, 1758) in relation to temperature

Abstract

In order to evaluate the influence of temperature on biochemical and hematological parameters in two different farmed fish, the gilthead sea bream (Sparus aurata Linnaeus, 1758) and the European sea bass (Dicentrarchus labrax, Linnaeus, 1758), blood samples were collected from a total of 60 specimens of each species, reared in Sicily, in the cold (February, mean temperature 13.40 °C) and warm seasons (October, mean temperature 23.20 °C). Biochemical (glucose, lactate, cholesterol, triglycerides and total protein) and hematological (red blood cell RBC, hemoglobin concentration Hgb, hematoctit Hct, mean corpuscular volume MCV, mean corpuscular hemoglobin MCH and mean corpuscular hemoglobin concentration MCHC) parameters were evaluated. Significant differences (P<0.05) were observed for glucose, lactate, triglycerides, cholesterol, total protein and RBC, Hgb, Hct, MCV, and MCH. This information could be useful for optimization of the husbandry practices in land-based aquaculture, and provide useful information for monitoring changes in the health status of fish.

A Multi-Biomarker Approach in European Sea Bass Exposed to Dynamic Temperature Changes under Dietary Supplementation with Origanum vulgare Essential Oil

“…In the present report, fish fed on CD showed an increase of serum glucose content upon exposure to 15 and 18 • C. As primary response to cold stress, the stimulation of glycogenolysis by catecholamines promotes the breakdown of hepatic glycogen and the release of glucose into the blood [47,48]. The same hyperglycemic responses were reported in many species, such as sea bream, Nile tilapia, silver catfish, milkfish, and grass carp [27,[49][50][51]. Trend of blood glucose in control group at temperatures between 21 and 25 • C could be a consequence of depletion of hepatic glycogen stores and the subsequent activation of gluconeogenesis.…”

“…Farmed sea bass is cultured in cage systems along the coast; therefore, it cannot alter their position to cope with daily and/or seasonally temperature changes and it has to face with continuous metabolic adjustments [ 26 ]. European sea bass may represent a good biological model for evaluating the impacts of temperature fluctuations in aquatic ecosystem [ 27 ]. In our study, we tested the effects of oregano EO-enriched diets on the physiological and oxidative state of sea bass exposed to temperature shifts.…”

Long-Term Assessment of Baseline Blood Biochemistry Parameters in Rainbow Trout (Oncorhynchus mykiss) Maintained under Controlled Conditions

“…Wild and reared fish are affected by intrinsic (e.g., age, sexual maturity and physiological condition) and external factors (e.g., hydrochemistry, temperature, handling and photoperiod) that are reflected in blood parameters [1,2]. Habitat and environmental conditions are also closely related to blood biochemical parameters [3].…”

European seabass (Dicentrarchus labrax) performance, health status, immune response and intestinal morphology after feeding a mixture of plant proteins-containing diets

“…Haematological parameters are good indicators for fish health status (Faggio et al, 2014, Peres et al, 2014Fazio et al, 2018). Normal ranges for blood parameters in seabass have been established in different studies carried out on wild and farmed fish subjected to different experimental conditions (Buscaino et al, 2010;Wassef et al, 2016, Abdel-Mohsen et al, 2018.…”