BACKGROUND In Anzali Lagoon, there are some endemic and exotic fishes. The present study was conducted to compare the parasitic fauna of Blicca bjeorkna, as an endemic fish and Hemiculter leucisculus, as an introduced fish to the lagoon. METHODS A parasitological investigation was done on 78 specimens of B. bjoerkna and 114 of H. leucisculus. The fishes were collected from August 2009 to Apri...

JEL codes 1 Int roduct ion 2 Measures and magni tudes 2.1 Participation in crime and offenses per criminal 3 Cr ime in a market context 3.1 The market 3.2 The market model and incapacitation 4 Ev idence on the supply o f c r ime 4.1 The effect of legitimate opportunities: unemployment 4.2 The porous boundary between legal and illegal work 4.3 The effect of legitimate opportunities: earnings ine...

New records for helminth species recovered from elasmobranch fishes in Brazil are established. Digenean and acanthocephalan parasites of elasmobranch fishes are reported from the southern coast of Brazil: Otodistomum veliporum (Creplin, 1837) Stafford, 1904 (Digenea: Azygiidae) in the stomach and spiral valve of Dipturus trachydermus and in the spiral valve of Squatina sp. Cystacanths and juven...

BOTH hypotheses and conclusions relating teacher-pupil behavior to pupil growth tend to be stated in simple, declara tive sentences, as: "Increased teacher indi rectness is associated with increased pupil growth in subject matter and more favor able attitudes"; or, "Decreased teacher criti cism is associated with more favorable pu pil attitudes and increased subject-matter growth." Yet probably...

As large long-lived predators, sharks are particularly vulnerable to exposure to methylmercury biomagnified through the marine food web. Accordingly, nonlethal means were used to collect tissues for determining mercury (Hg) concentrations and stable isotopes of carbon (δ(13)C) and nitrogen (δ(15)N) from a total of 69 sharks, comprising 7 species, caught off Southwest Florida from May 2010 throu...

Abstract Sharks are among the marine organisms most impacted by intense fisheries, a worrying fact since they key components in trophic structure of ecosystems. In this context, fish landing data can help managers shark conservation. This study characterized landings Carcharhinus acronotus, Mustelus cf. canis, and Sphyrna mokarran Mucuripe Embayment, Ceará, Brazil, along three periods (1998–199...