Stable isotopes can be used to reconstruct diet in fishes, an approach that is particularly useful threatened or endangered species where lethal sampling needs avoided To apply this method stable need measured both the consumers and dietary sources As turnover rates may largely differ across tissues, reconstruction should consider uncertainty associated with timing for sources. The present stud...

We studied the trophic structure of western Wadden Sea fish community through stable isotope analysis (δ 13 C and δ 15 N) 1658 samples from 57 species collected between 2012 2016. Stable values differed but did not vary years or seasons, only for some with size. were different immigrating (spring) emigrating (autumn) fish, suggesting a similar niche various in coastal zone inside Sea. For major...

Abstract Background Syngnathid fishes (Actinopterygii, Syngnathidae) are flagship species strongly associated with seaweed and seagrass habitats. Seahorses pipefishes highly vulnerable to anthropogenic environmental disturbances, but most currently Data Deficient according the IUCN (2019), requiring more biological ecological research. This study provides first insights into syngnathid populati...

Angus J. Bateman's classic study of sexual selection in Drosophila melanogaster has had a major influence on the development of sexual selection theory. In some ways, Bateman's study has served a catalytic role by stimulating debate on sex roles, sexual conflict and other topics in sexual selection. However, there is still considerable disagreement regarding whether or not "Bateman's principles...

Occurrence and distribution of larval and juvenile fish was investigated in nearshore waters of the southeastern Caspian Sea including the Gorgan Bay. Samples were collected during seven surveys using a fine mesh beach-seine in five sampling sites from July 2014 to June 2015. A total of 15500 individuals mostly juvenile were captured, representing 18 species from 8 families. Most juveniles belo...