Two distinct fishing technologies were identified among the shellmound builders of the Saquarema Lagoonal Complex, in the Brazilian state of Rio de Janeiro: bone point technology and worked fish spines. These technologies were related to the acquisition of specific fish resources; Worked fish spines were used in the capture of Micropogonias furnieri (Desmarest), and bone points used for fishing...

Length-weight relationship of four fish species the genera Pseudorhombus, Plicofollis and Scarus (Actinopterygii: Paralichthyidae, Ariidae Scaridae) from Persian Gulf, Iran

Injuries caused by fish are common in marine and freshwater environments. Catfish of the Ariidae and Pimelodidae families cause about 80% of those injuries. One of the complications of injuries caused by fish is the retention of fragments of the stinger in the wounds. Here we report five cases (of a total of 127 injuries caused by catfish in the Brazilian coast) in which the retained fragments ...

An updated checklist of the distribution of fishes that inhabit the continental waters of the Mexican state of Chiapas is presented. The state was compartmentalized into 12 hydrological regions for the purpose of understanding the distribution of fish fauna across a state with large physiographic variance. The ichthyofauna of Chiapas is represented by 311 species distributed in two classes, 26 ...

X-cell epidermal lesions are described from a single specimen of the hardhead catfish Anus felis (Ariidae). The lesions exhibited a n unusual growth pattern but did not involve any visceral organs. Histologically, the lesions resembled those previously described for coldwater f~shes . This is the first report of X-cell lesions from Lake Pontchartrain, Louisiana, USA, and the hardhead catfish re...

The species remains the basic unit of biological classification. However, since archaeofaunal analysis is time-consuming and costly (especially when fish are the dominant class), it is important to ask whether making species-level identifications is worthwhile in view of the fact that even anciently diverged species can be difficult to differentiate osteologically with fragmented material. This...

The madamango sea catfish, Cathorops spixii (Siluriformes: Ariidae), is often among the most abundant fishes on the South American Atlantic coast. In the present study, conducted in shallow, non-estuarine coastal areas of Caraguatatuba Bight in southeastern Brazil, collections of this species, the most abundant member of the ichthyofauna, included primarily medium-sized individuals, indicating ...

Intercontinental distributions in the southern hemisphere can either be the result of Gondwanan vicariance or more recent transoceanic dispersal. Transoceanic dispersal has come into vogue for explaining many intercontinental distributions; however, it has been used mainly for organisms that can float or raft between the continents. Despite their name, the Sea Catfishes (Ariidae) have limited d...

La dieta y los hábitos alimentarios de una especie determinan su ubicación dentro red trófica definen rol ecológico. De esta manera, también representan un mecanismo clave en la estructuración mantenimiento estabilidad las comunidades. En el caso particular familia Ariidae, debido a sus estructuras óseas externas son escasos registros depredación sobre grupo, excepto algunos casos mamíferos mar...

Wadi El-Hitan, the UNESCO World Heritage Site, of the Fayum Depression in the northeast part of the Western Desert of Egypt, has produced a remarkable collection of Eocene vertebrates, in particular the fossil whales from which it derives its name. Here we describe a new genus and species of marine catfishes (Siluriformes; Ariidae), Qarmoutus hitanensis, from the base of the upper Eocene Birket...