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Background. The Morocco dentex, Dentex maroccanus Valenciennes, 1830, is a sparid species, which has economical value and its population is expanding in a 20–500 m depth range throughout the Mediterranean. Worldwide, there is a lack of information about the biology (age, growth, reproductive season, first maturity length) of this species. This study provides the first data on population parameters...
The first records of the redbanded seabream, Pagrus auriga Valenciennes, 1843 (Sparidae), and the bastard grunt, Pomadasys incisus (Bowdich, 1825) (Haemulidae), from Galician waters (NW Spain) are reported herewith. Both findings constitute the northernmost confirmed records of those fishes in the eastern Atlantic. The Galician waters seem to be an important observation point of this phenomenon as...
Background. The peacock wrasse, Symphodus tinca (Linnaeus, 1758), is a common Mediterranean fish and the most abundant labrid species on the eastern coast of Algeria. Its age and growth, however, have been poorly studied. Such data are essential for proper fisheries management. The aim of this study is to provide information on the age and growth of this wrasse species from the eastern Algeria based...
The cyprinid freshwater fish, Pachychilon macedonicum (Steindachner, 1892), is an endemic species in the Balkan Peninsula and has a restricted distribution in Greece. Here, we report new records of the species out of its known natural range, namely at the Mpogdanas Stream (drainage area of lakes Koronia-Volvi, northern Greece), which now constitute a new eastern limit for the distribution of the species...
Background. Acipenserid fishes may be divided into three groups in terms of their ploidy levels: 1) 120-chromosomes, 2) 250–270-chromosomes, and 3) about 370-chromosomes. The experimental crosses show that sturgeon species with the same ploidy often produce fertile hybrids, whereas the hybrids between species with different ploidy cannot reproduce because of female sterility or full sterility. To...
Birth deposits most future scientists within a standard deviation or so of average, with life proceeding with its typical bumps and ruts. For a few, however, life begins as or soon transpires into a Homeric challenge. Those who emerge from such beginnings to widely contribute to humanity become mankind’s cherished dignitaries... exemplars promulgating the legitimacy of hope and lending encouragement...
Background. The feeding behaviour of Mediterranean moray, Muraena helena Linnaeus, 1758, from the coast of Tunisia (central Mediterranean) is poorly know and this study is a first step in determining prey consumption by M. helena as main information for improving fishery monitoring and management in the study area. Materials and Methods. Of the 411 sampled Mediterranean morays, 237 were males and...
Background. The Pomeranian Bay is one of the most important spawning areas of herring, Clupea harengus Linnaeus, 1758, at the Polish coast. The distribution of spawning grounds in the region has only been discussed in one paper, published two decades ago. The identification of the exact locations of the spawning grounds in the bay is of key importance, among others for the evaluation of possible consequences...
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