Fruit features of 17 Acaena species in New Zealand were investigated to determine the relations between reproductive allocation patterns, mode of dispersal and species ecology. Three basic morphological types, corresponding to major sections within the genus, are represented: spineless fruits (Sect. Pteracaena one species), spined fruits lacking barbs (Sect. Microphyllae 6 species), and spined ...

In 2021, three specimens of the Lessepsian yellowstripe barracuda Sphyraena chrysotaenia and eight Indo-Pacific needle-spined sea urchin Diadema setosum were recorded along coasts Zakynthos Island, some within Marine Protected Area.

a disease outbreak occurred in june 2012 among mud loach cultured on pond farms in jangseong-gun, jeollanam-do, korea. mortality rates reached up to 1.2% in the farm per day. typical clinical signs were bleeding ulcer at the middle portion of head and haemorrhagic erosion of the operculum. based on biochemical characteristics, the causative bacterium isolated from diseased fish was identified a...

after around a hundred years of being without any record of occurrence of paracobitis rhadinaea, a species of nemacheiline loach, in sistan basin, southeast of iran, the year 2012 was the turning point of wild life in this area. twenty-five specimens were caught from chahnimeh reservoir, a water body adjacent to the hamoun wetland in sistan basin. morphometric and meristic characteristics were ...

Bioturbation/bioirrigation can affect the remobilization of metals from sediments. In this study, experiments were performed to examine the effect of bioturbation/bioirrigation by different organisms on cadmium (Cd), copper (Cu), zinc (Zn) and lead (Pb) releasing from the spiked sediment. The diffusive gradient in thin films technique (DGT) revealed that at the end of exposure time, the labile ...

Dojo loach, Misgurnus anguillicaudatus is a freshwater fish species of the loach family Cobitidae, using its posterior intestine as an accessory air-breathing organ. Little is known about the molecular regulatory mechanisms in the formation of intestinal air-breathing function of M. anguillicaudatus. Here high-throughput sequencing of mRNAs was performed from six developmental stages of posteri...

A new species of Acanthodasys (Gastrotricha, Macrodasyida, Thaumastodermatidae) is described from sublittoral sediments off the Atlantic coast of Florida. Acanthodasys paurocactussp. n. is a relatively small species (to 450 µm long) with a strap-shaped outline, a series of anterior, lateral, and ventrolateral adhesive tubes, paired caudal pedicles with posterior adhesive tubes, and a morphologi...

The continuous increase of anthropogenic CO2 in the atmosphere resulting in ocean acidification has been reported to affect brain function in some fishes. During adulthood, cell proliferation is fundamental for fish brain growth and for it to adapt in response to external stimuli, such as environmental changes. Here we report the first expression study of genes regulating neurogenesis and neuro...