Ioanna Tsionki

• MSc in Biological Oceanography, PhD candidate
• PhD Candidate at University of Ioannina

Olga Petriki, Roberta Barbieri, Ioanna Tsionki, Georgia Papantoniou, Dimitrios K. Moutopoulos, Maria Th. Stoumboudi:Preliminary results of a fish fauna survey in Lake Trichonis, Greece The preliminary results of a fish sampling campaign conducted in Lake Trichonis are presented. Fish were sampled using benthic and pelagic Nordic type gillnets set a...

The knowledge of the life-history traits of commercial and data-deficient fish species is essential for assessing, among others, their status, as well as for the formulation of conservation measures and the implementation of sustainable managerial decisions. In the present study, growth parameters were estimated for eight fish species of the Lake T...

The diet of five freshwater fish species of Lake Trichonis, the largest natural lake of Greece, was studied. Specifically, the studied species were Atherina boyeri, Luciobarbus albanicus, Leucos panosi, Scardinius acarnanicus and Tropidophoxinellus hellenicus. The diet analysis was based on stomach content analysis of seasonal samples collected dur...

Total length-weight relationships (LWRs) from 3583 individuals of Atherina boyeri (Risso, 1810) caught in Lake Trichonis (Western Greece), using a commercial encircled net and experimental Nordic type benthic and pelagic multi-mesh gillnets, were estimated during 2019-2020. The variation of the parameter b for all seasons combined was significantly...

Abstract: An Ecopath with Ecosim (EwE) modeling approach was used to explore the ecological structure of the largest lake in Greece (Lake Trichonis). Until the mid-1990s, the lake was receiving a high level of pollution and the fishing pressure was intense, while since the early 2000s, fisheries and other human pressures gradually declined. Nowaday...

This study provides the length–weight relationships (LWRs) and the relative condition factor (Kn) for three fish species, caught in the natural Lake Trichonis. Two of the studied species, the Trichonis dwarf goby (Economidichthys trichonis Economidis & Miller, 1990) an endangered species according to the Red List of the International Union for Cons...

This study discusses the composition of two sympatric species, Syngnathus abaster and Syngnathus typhle (Syngnathidae) found in the protected shallow area Livari at Sperchios estuary. During the sampling period from June 2014 to October 2015, a total of 142 hauls were conducted at depths ranging from the surface down to 1,80m. A total of 1326 speci...

This study reports, for the first time, the composition of crustacean fauna, found in the protected shallow area Livari at Sperchios estuary in the inner part of Maliakos Gulf. The river's seabed consists of soft sediment while some areas are covered by algae and fine sand. During the period from June 2014 to December 2015, monthly samplings have b...

This study discusses the biodiversity assessment of the freshwater fish fauna of Aoos entire river system. During the sampling period electrofishing was conducted in 10 sampling stations along Aoos River. For the monitoring of the fish fauna biodiversity in the artificial lake of Aoos Nordic type gillnets were used. Nine fish species were collected...

This study provides the first data in the Greek literature on the biology of Squilla mantis (Linnaeus, 1758) caught in Maliakos Gulf. Males have larger dimensions than females, while the overall length and body weight of both sexes exhibited a negative allometric growth. The highest percentage of mature females was found in late summer, early autum...

This paper discusses the preliminary results of the qualitative composition of marine fauna and catching technique for juveniles in the estuary of Sperchios River, a protected shallow area. It is the first time the marine fauna is studied in this region which is characterized as "nursery ground". A bag-seine net was used with mesh size 2.5 mm, whic...

In the present study the length–weight relationships (LWRs) of 6 fish species which are endemic to Western Greece, caught in the natural Lake Trichonis by experimental gillnets and electrofishing were estimated. Benthic (mesh size 5–55 mm; height 1.5 m; length 30 m) and pelagic (mesh size 6.25–55 mm; height 6 m; length 27.5 m) Nordic type multimesh...