The biometric analysis of pipefish species from çamaltı lagoon (İzmir Bay, Aegean Sea)

Çamaltı Lagünü’ndeki (İzmir Körfezi, Ege Denizi) deniziğnelerinin biyometrik analizleri. Bu araştırma, 2000-2002 yılları arasında İzmir Körfezi Çamaltı Lagünündeki üç deniziğnesi türünün, Syngnathus acus Linneaus, 1758, Syngnathus typhle Linneaus, 1758 ve Nerophis ophidion (Linneaus 1758), biyometrik analizleri verilmiştir. Araştırmada toplam 562 adet birey incelenmiştir. S.acus ve S.typhle için 10 morfometrik, 5 meristik karakter, N.ophidion için ise 9 morfometrik 3 meristik karakter incelenmiştir. S.acus’un dişi ve erkek bireyleri arasında sadece preanal (Pr.RN) ve postanal (Po.RN) halka sayıları bakımından farklılık bulunmuştur. Syngnathus typhle’de ise dişilerin ağız genişliği (MW), ağız yüksekliği (MH), göz çapı (ED), dorsal yüzgeç boyu (DFL) erkeklerden daha büyük olup seksüel dimorfizim olarak değerlendirilmiştir. Nerophis ophidion’da ise dişilerin göz çapı (ED) değerleri erkeklerine göre daha küçük olduğu belirlenmiştir.

Anahtar Kelimeler:

Türkiye, biyometri, morfometri, eşeysel farklılık, Ege Denizi, Syngnathidae

Çamaltı Lagünü'ndeki (İzmir Körfezi, Ege Denizi) deniziğnelerinin biyometrik analizleri

This research presents the biometry analysis of the specimens of three pipefish, Syngnathus acus Linneaus, 1758 Syngnathus typhle Linneaus, 1758 and Nerophis ophidion (Linneaus 1758), populations in the Çamaltı Lagoon, İzmir Bay for 2000–2002. A total of 562 specimens of pipefish, were examined. For S.acus and S.typhle ten morphometric and five meristic features (external) and N.ophidion nine morphometric three meristic characters were determined in interspecifics. The Çamaltı population of Syngnathus acus were showed that their females and males were found to differentiate only in the preanal (Pr.RN) and postanal rings (Po.RN) respectively. In the population of Syngnathus typhle were showed significantly greater values for mouth width (MW), mouth height (MH), eye dimension (ED) and length of the dorsal fin base (DFL) belonging to females were found to be greater than males indicating a sexual dimorphism when these characters are considered. And specimens of Nerophis ophidion, the eye dimension (ED) in females were found to be smaller values than males.

Keywords:

Turkey, biometry, morphometrics, sexual dimorphism, Aegean Sea, Syngnathidae,

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