Araştırma Makalesi

The length and weight relationships and feeding ecology of knout goby, Mesogobius batrachocephalus (Pallas, 1814) from Southern Black Sea

Cilt: 37 Sayı: 4 15 Aralık 2020
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The length and weight relationships and feeding ecology of knout goby, Mesogobius batrachocephalus (Pallas, 1814) from Southern Black Sea

Abstract

Among ecologically diverse gobies species, knout goby, Mesogobius batrachocephalus (Pallas, 1814), or previously known as Gobius batrachocephalus, is a Black Sea endemic species. There are studies on this species biological features along the Black Sea but there are only studies on its length and weight relationship along the Turkish coasts of the Black Sea. This study aims to contribute to the lack of knowledge on knout goby length and weight relationship and feeding ecology inhabiting Southern Black Sea. Total of 470 individual of knout goby was collected and it was previously reported that knout goby shows negative (-) allometry though within this study it was found that it only shows negative (-) allometry in spring and positive (+) allometry in other seasons. The diet was composed of crustaceans, teleost fishes and gastropods. According to the relative importance analysis, teleost fishes are the main food item for all and male individuals but for female crustaceans are the main food item. Trophic level results show that for all individuals trophic levels is 4.34, and when sexes are compared females have higher trophic level than males. While both sexes only consume teleost during summer, in other seasons females prefer more crustacean in their diet compared to males. Niche breadth index results indicated that when all individuals diet was compared among seasons in winter the niche breadth was the broader and summer was the narrower, in case of females the broader was fall and for males it was winter. In conclusion, feeding ecology of knout goby changes between seasons and sexes but general prey groups remain the same

Keywords

Destekleyen Kurum

Ordu University

Proje Numarası

Project No. AP-1735

Teşekkür

This study was supported by Ordu University Research Fund Project No. AP-1735.

Kaynakça

  1. Ak, O., Kutlu, S. & Aydın, İ. (2009). Length-weight relationship for 16 fish species from the Eastern black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences, 9, 125-128.
  2. Aydın, M., Karadurmuş, U. & Mutlu, C. (2013). The Crab Species of the Middle and East Black Sea (Turkey). The Black Sea Journal of Sciences. 3(9), 1-16.
  3. Çalık, S., & Erdoğan Sağlam, N. (2017). Length-weight relationships of demersal fish species caught by bottom trawl from Eastern Black Sea (Turkey). Cah. Biol. Mar, 58, 485-490.
  4. Demirhan, S.A. & Can, M.F. (2007). Length–weight relationships for seven fish species from the southeastern Black Sea. Journal of Applied Ichthyology, 23(3), 282-283. DOI: 10.1111/j.1439-0426.2007.00835.x
  5. Fischer, W., Schneider, M. & Bauchot M.L. (1987). Méditerranée et Mer Noire (Zone de Pêche 37). Fiches FAO d'identification des espèces pour les besoins de la pêche. Volume 1, 1530 pp.
  6. Freyhof, J. (2011). Diversity and distribution of freshwater gobies from the Mediterranean, the Black and Caspian seas. The Biology of Gobies. Science Publishers, Enfield, NH, 279-288. DOI: 10.1201/b11397-19
  7. Froese, R. & D. Pauly. Editors. (2019). FishBase. Mesogobius batrachocephalus (Pallas, 1814). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=126909 on 2019-02-15
  8. Karachle, P.K. & Stergiou, K.I. (2012). Morphometrics and allometry in fishes. In Morphometrics. InTech.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Hidrobiyoloji

Bölüm

Araştırma Makalesi

Yazarlar

Yayımlanma Tarihi

15 Aralık 2020

Gönderilme Tarihi

9 Nisan 2020

Kabul Tarihi

26 Haziran 2020

Yayımlandığı Sayı

Yıl 2020 Cilt: 37 Sayı: 4

DOI

https://doi.org/10.12714/egejfas.37.4.12

IZ

https://izlik.org/JA82ZM94NH

Kaynak Göster

RIS / Bibtex
APA
Bengil, E. G. T., & Aydın, M. (2020). The length and weight relationships and feeding ecology of knout goby, Mesogobius batrachocephalus (Pallas, 1814) from Southern Black Sea. Ege Journal of Fisheries and Aquatic Sciences, 37(4), 409-414. https://doi.org/10.12714/egejfas.37.4.12

Cited By

THE LENGTH-WEIGHT RELATIONSIPS OF SOME FISH SPECIES ALONG THE TURKISH COASTS OF BLACK SEA

Turkish Journal of Maritime and Marine Sciences

https://doi.org/10.52998/trjmms.1112696

The first data on the population parameters and morphometry of Mesogobius batrachocephalus (Pallas 1814) (Family: Gobiidae) in the southern Black Sea

Aquatic Research

https://doi.org/10.3153/AR21009