To understand the biokinetics and potential risks of p,p'-dichlorodiphenyltrichloroethane (DDT) and its metabolites, p,p'-dichlorodiphenyldichloroethylene (DDE) and p,p'-dichlorodiphenyldichloroethane (DDD), in fish, we exposed the black sea breams (Acanthopagrus schlegeli) to aqueous and dietary DDTs and then evaluated the bioaccumulation, distribution, biotransformation, and elimination of DD...

Animal activity patterns evolve as an optimal balance between energy use, energy acquisition, and predation risk, so understanding how animals partition activity relative to extrinsic environmental fluctuations is central to understanding their ecology, biology and physiology. Here we use accelerometry to examine the degree to which activity patterns of an estuarine teleost predator are driven ...

The goal of this research is to study the effect of benzo-alpha-pyrene (BαP) as a pollutant on the plasma levels of cortisol, thyroxin (T4), and triiodothyronine (T3) hormones, and the T3/T4 ratio in the yellowfin sea bream, Acanthopagrus latus. The BαP (50 mg kg-1) in vegetable oil was peritoneally injected. Blood samples were obtained from the treated and control groups after 3 and 72 hr, res...

Yemen is provided for the first time. The following genera are recorded in southern Arabian Peninsula time: tribe Doryctini – Hemispathius Belokobylskij & Quicke, 2000 and Doryctes Haliday, 1836; Spathiini Parana Nixon, 1941 Spathius Nees, 1819; Hecabolini Hemidoryctes Belokobylskij, 1992 Parallorhogas Marsh, 1993; Heterospilini Heterospilus Haliday 1936; Rhaconotini Platyspathius Viere...

 Acanthopagrus latus is one of the major commercially exploited species in the Persian Gulf. In recent years, it has gained importance as a candidate for aquaculture. Haematological parameters of wild-caught specimens were studied during the pre-spawning period to determine if they are influenced by the sex of fish. Blood samples were collected from 55 Fish (30 female and 25 male) captured from...

The goal of this research is to study the effect of benzo-alpha-pyrene (BαP) as a pollutant on the plasma levels of cortisol, thyroxin (T4), and triiodothyronine (T3) hormones, and the T3/T4 ratio in the yellowfin sea bream, Acanthopagrus latus. The BαP (50 mg kg-1) in vegetable oil was peritoneally injected. Blood samples were obtained from the treated and control groups after 3 and 72 hr, res...

Based on light and electron microscopical studies, a new nematode parasite, Echinocephalus inserratus sp. n. (Spirurida: Gnathostomatidae), is described from the spiral valve of broad cowtail stingray Pastinachus ater (Macleay) (Dasyatidae, Myliobatiformes) off New Caledonia. The species morphologically biometrically most similar to overstreeti Deardorff et Ko, 1983, differing it mainly in abse...