Acute toxicity of ammonia in juvenile brazilian sardine Sardinella brasiliensis

CONDITION OF THE BRAZILIAN SARDINE, Sardinella brasiliensis (STEINDACHNER, 1879) LARVAE IN THE SÃO SEBASTIÃO INNER AND MIDDLE CONTINENTAL SHELF (SÃO PAULO, BRAZIL)

Characterization of Myoglobin from Sardine (sardinella Gibbosa) Dark Muscle

Myoglobin from the dark muscle of sardine (Sardinella gibbosa) with the molecular weight of 15.3 kDa was isolated and characterized. The different myoglobin derivatives exhibited varying thermal unfolding characteristics. Deoxymyoglobin showed a single distinct endothermic peak at 74.5°C, whereas two transition temperatures were noticeable for oxymyoglobin (64.5°C and 78.4°C) and metmyoglobin (...

Prevention of acute ammonia toxicity in beluga, Huso huso, using natural zeolite

This study was accomplished to examine the efficiency of natural zeolite in preventing acute toxicity of total ammonia to Huso huso. The study was performed using Water Static Method in 96 hours. Fish averaged 46 ? 5 g in weight and 22 ? 4 cm in total length were exposed to four different concentrations (15, 30, 50, 75 mgL-1) of ammonia and a group was considered as control. Under stable condit...

Acute and postexposure effects of ammonia toxicity on juvenile barramundi (Lates calcarifer [Bloch]).

Lethal and sublethal effects of ammonia toxicity to juvenile barramundi (Lates calcarifer) were investigated under laboratory conditions following the OECD guidelines for testing of chemicals. Acute toxicity was tested in a static nonrenewal system at pH 9.0 and temperature around 29 degrees C. The 24-, 48-, and 96-h LC(50) values for barramundi were 3.89, 3.67, and 3.31 mg total ammonia N L(-1...

Population genetic structure of Indian oil sardine, Sardinella longiceps along Indian coast.

Genetic stock structure and historical demography of Indian oil sardine, a commercially and ecologically important small pelagic fish, was studied using mitochondrial control region and Cytochrome C Oxidase I (COI) sequences. A 758 bp portion of the control region in 287 individuals and a 576 bp portion of the COI gene in 291 individuals from 10 locations along the distribution range were ampli...