Some morphometric features of congeneric pipefish species (Syngnathus abaster Risso 1826, Syngnathus acus Linnaeus, 1758) distributed in Lake Bafa (Turkey)

Sule Gurkan, Deniz Innal

Paper category: Original research paper
Corresponding author: Sule Gurkan (sule.gurkan@ege.edu.tr)
DOI: 10.1515/ohs-2018-0023
Received: November 3, 2017
Accepted: January 17, 2018
Full text: here

Citation:

Abstract

The study was carried out between November 2014 and March 2016 to determine certain morphometric characteristics of two pipefish species occurring in Lake Bafa, Syngnathus abaster and Syngnathus acus. A total of 211 pipefish were captured during the sampling, including 77 individuals of S. abaster (♀: 25; ♂: 44; immature: 8) and 134 individuals of S. acus (♀: 31; ♂: 76; immature: 27). The male-female ratios were 1:1.76 and 1:2.45, respectively. A difference was found in sex ratios between the two species (p < 0.05). The mean length of the captured fish was 86.63 ± 16.77 mm for S. abaster and 82.63 ± 16.02 mm for S. acus and the relationship between the total length and weight, referred to as the length-weight relationship, was as follows: W = 0.00000001L3.71 (R2 = 0.89), and W = 0.000000007L3.86 (R2 = 0.83), respectively. Seven morphometric characteristics were analyzed. The analyses revealed that S. acus and
S. abaster were significantly different from each other in terms of their body depth (p = 0.006; p < 0.05), mouth width (p = 0.004; p < 0.05) and height (p = 0.008; p < 0.05). High correlation values were obtained for TL/BD and TL/HD in S. abaster and S. acus, respectively (r > 1). In conclusion, among the congeneric species occurring in Lake Bafa, S. abaster and S. acus are characterized by a shorter head length and total length compared to their sea counterparts.

References

Bądź pierwszy, który skomentuje ten wpis

Dodaj komentarz