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Length‐weight relationships of 6 fish species caught in a Mediterranean lake (Trichonis‐NW Greece)
Author(s) -
Tsionki Ioanna,
Petriki Olga,
Leonardos Ioannis D.,
Karachle Paraskevi K.,
Stoumboudi Maria Th.
Publication year - 2021
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/jai.14213
Subject(s) - electrofishing , biology , pelagic zone , littoral zone , fishery , benthic zone , mediterranean climate , fish <actinopterygii> , ecology
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 gillnets were used seasonally, between February 2019 and November 2019, at different depth zones (0‐57m). Electrofishing (80 Hz) conducted in the littoral zone of the lake during four samplings (2018, 2019). All the estimated LWRs were highly significant ( p < .05) with high correlation coefficient ( r 2 ≥ 0.962). The estimated b values ranged from 3.058 to 3.344. For five of the studied species (Trichonis spined loach ( Cobitis trichonica Stephanidis 1974), Trichonis blenny ( Salaria economidisi Kottelat 2004), Trichonis rudd ( Scardinius acarnanicus Economidis 1991), Acheloos roach ( Leucos panosi (Bogutskaya & Iliadou 2006)) , Hellenic minnowroach ( Tropidophoxinellus hellenicus (Stephanidis 1971)) new maximum total body lengths (TL) were recorded, while for two species ( T. hellenicus and L . panosi ) LWRs are presented for the first time.