Abstract The silverside sailfin, Telmatherina sarasinorum Kottelat 1991, is an endemic fish that lives in Matano Lake, South Sulawesi. purpose of this study to analyze the stomach contents T. sarasinorum. was conducted from March 2018 February 2019. Samples were collected using bag nets (with mesh size 0.5 inches). (N=2124 individuals) consisted 1318 male and 806 female with a total body length...

The significance of sympatric speciation is one of the most controversial topics in evolutionary biology. Theory suggests that different factors can lead to speciation in full geographical contact, including selection and nonrandom mating. Strict criteria have been established for assessing sympatric speciation, which have been met in only a very few cases. Here, we investigate differentiation ...

Although male choosiness may be influenced by predation risk, variation in mate availability, and fecundity that may vary spatially and over time, there is little evidence for variation in male mate choice preferences. In mixed populations of bisexual sailfin mollies (Poecilia latipinna) and unisexual Amazon mollies (Poecilia formosa), males encounter 2 types of potential mates: conspecific sex...

Little is known about the ichthyofauna from intertidal rock pools of west coast Africa, especially in Gulf Guinea. Rock are characteristic habitats zone structurally complex rocky shores, adding important niche space to coastal fish species. In this study, three similar shores Príncipe Island were sampled describe composition, abundance and distribution assemblages their relation parameters poo...

The Malili Lakes of south-central Sulawesi, Indonesia, recently hailed as ‘Wallace’s Dreamponds’ (Herder et al., 2006a), are gaining recognition as a powerful model system for studying adaptive radiation in a variety of organisms, including crabs, snails (von Rintelen et al., 2004; von Rintelen & Glaubrecht, 2005) and fishes (Roy et al., 2004; Gray & McKinnon, 2006; Herder et al., 2006a). Inclu...

Feeding rates of the gynogenetic Amazon molly Poecilia formosa and one of its sexual hosts, the sailfin molly Poecilia latipinna, were measured under winter and summer temperature conditions. Food consumption of the unisexual P. formosa in winter conditions was significantly higher than that of P. latipinna, and it is hypothesized that the resulting food stress might have an important influence...

This study demonstrates that short-term behavioral and physiological responses may permit the sailfin molly Poecilia latipinna to cope successfully with extreme hypoxia and suggests an interaction between behavioral response (aquatic surface respiration [ASR]) and physiological compensation. Poecilia latipinna acclimated to chronic hypoxia (6 wk at 1.0 mg L(-1) O(2)) exhibited higher hemoglobin...

To examine trophic dynamics over different size classes, an isotopic study of sailfish Istiophorus platypterus life-history stages was carried out. Samples were collected from eastern Taiwan and the South China Sea during April 2009 and February 2012. A total of 263 samples (111-245 cm, lower jaw fork length, LLJFL ) were examined for changes in trophic structure in relation to LLJFL by using s...