length-weight relationships were estimated for three gobiid species of iran. significant length-weight relationships with high correlation coefficient were found for all species from eight localities. the value of the parameter b varied between 2.196-2.498 for boleophthalmus dussumieri (valenciennes, 1837); 2.554 to 3.460 for periophthalmus waltoni (koumans, 1955) and 2.316 to 2.920 for scartel...

Flow characteristics are a prominent factor determining body shapes in aquatic organisms, and correlations between body shape and ambient flow regimes have been established for many fish species. In this study, we investigated the potential for a brief period of extreme flow to exert selection on the body shape of juvenile climbing Hawaiian gobiid fishes. Because of an amphidromous life history...

A brief review of studies on the seasonal growth of fish is presented, followed by an equally brief review of length-converted catch curves. A new method for constructing catch curves from representative length-frequency data is presented. This new method explicitly accounts for seasonal growth and thus eliminates the bias in Z caused by such growth. Some practical and theoretical implications ...

In a recent study, we showed how local-scale climate change impacts (increased temperature, reduced rainfall, shifts in peak rainfall) affected the hydrology of channelised lowland European river (reduced flow, reduction flood events, increased siltation, macrophyte growth), allowing native fish species to recolonise bankside zone and reduce density invasive round goby Neogobius melanostomus by...

The stream macroalgal floras of two proximate, high-quality stream valleys (Hanakapl'ai and Limahuli) located on the northern quadrant of the Hawaiian island of Kaua'i were inventoried and compared on a watershed scale, providing interesting insight into Hawai'i's potential taxonomic diversity and the influential role played by physical factors in shaping community characteristics. A total of 2...

The Mediterranean, northeastern Atlantic, and inland freshwaters of Europe and the Ponto-Caspian region host a distinct fauna of gobiiform fishes, including the sand gobies (Pomatoschistus Gill and related genera), all of which have been classified in the most diverse goby group, the family Gobiidae. Recent molecular phylogenetic analyses have suggested that the sand gobies are not gobiids, and...

Background: For the first time, almost half a century after its discovery and description, the poorly known endemic gobiid fish Chriolepis lepidota was seen alive at Malpelo Island. Methods: During a 12-day expedition on March 2017, 18 specimens of this species were observed and photographed at different depths by means of SCUBA diving. Results: Species maximum size and habitat preference are h...