Monthly variations in the shell structure of two freshwater ostracod (Crustacea) species in Karapınar Spring (Bolu, Turkey)

Okan KÜLKÖYLÜOĞLU; Manuel R. PALACIOS-FEST; Dirk BARON; Necmettin SARI

Makale detayları

Monthly variations in the shell structure of two freshwater ostracod (Crustacea) species in Karapınar Spring (Bolu, Turkey)

Yazarlar:

Okan KÜLKÖYLÜOĞLU | Manuel R. PALACIOS-FEST | Dirk BARON | Necmettin SARI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Zoology 2015 Vol.39 Issue 5, pp.906-916

Belge Tipi:

Makale

Yayın Tarihi:

12/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000774909

Sıklık:

İki Aylık

eISSN:

1303-6114

pISSN:

1300-0179

Anahtar kelimeler:

Özet:

 

The variations of environmental conditions (T °C, pH, Δ13C, Δ18O, Mg/Ca, and Sr/Ca) for two ostracod species (Psychrodromus olivaceus, Potamocypris similis) were analyzed and compared to identify the controls of environmental parameters on the chemical and isotopic composition of their valves. The specimens were collected from Karapınar Spring (Bolu, Turkey) between October 2009 and November 2010. The species were observed throughout the year. Psychrodromus olivaceus showed relatively constant Mg/Ca ratios during the study period, whereas those of P. Similis showed more variability. The ratio was also significantly different (P < 0.05) between the two species. We did not find significant correlation between water temperature and either of the species' Mg/Ca ratios. The stable isotope record for P. Similis was very patchy, showing a small range of values consistent with the groundwater source, similar to the behavior of Sr/Ca. The Sr/Ca ratio displayed little variation throughout the year, suggesting hydrochemical stability over time, most likely in response to the groundwater source. The stable isotope data displayed pronounced variability for P. Similis but little for P. Olivaceus, suggesting that the former may be responding to seasonality, whereas the latter responds to groundwater.

 

The variations of environmental conditions (T °C, pH, Δ13C, Δ18O, Mg/Ca, and Sr/Ca) for two ostracod species (Psychrodromus olivaceus, Potamocypris similis) were analyzed and compared to identify the controls of environmental parameters on the chemical and isotopic composition of their valves. The specimens were collected from Karapınar Spring (Bolu, Turkey) between October 2009 and November 2010. The species were observed throughout the year. Psychrodromus olivaceus showed relatively constant Mg/Ca ratios during the study period, whereas those of P. Similis showed more variability. The ratio was also significantly different (P < 0.05) between the two species. We did not find significant correlation between water temperature and either of the species' Mg/Ca ratios. The stable isotope record for P. Similis was very patchy, showing a small range of values consistent with the groundwater source, similar to the behavior of Sr/Ca. The Sr/Ca ratio displayed little variation throughout the year, suggesting hydrochemical stability over time, most likely in response to the groundwater source. The stable isotope data displayed pronounced variability for P. Similis but little for P. Olivaceus, suggesting that the former may be responding to seasonality, whereas the latter responds to groundwater.

Makale detayları

Monthly variations in the shell structure of two freshwater ostracod (Crustacea) species in Karapınar Spring (Bolu, Turkey)

Yazarlar:

Okan KÜLKÖYLÜOĞLU | Manuel R. PALACIOS-FEST | Dirk BARON | Necmettin SARI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Zoology 2015 Vol.39 Issue 5, pp.906-916

Belge Tipi:

Makale

Yayın Tarihi:

12/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000774909

Sıklık:

İki Aylık

eISSN:

1303-6114

pISSN:

1300-0179

Ostracoda

rheocrene spring

isotope analyses

Mg/Ca ratio

Sr/Ca ratio

Sayı

Makale detayları

Monthly variations in the shell structure of two freshwater ostracod (Crustacea) species in Karapınar Spring (Bolu, Turkey)

Yazarlar: Okan KÜLKÖYLÜOĞLU | Manuel R. PALACIOS-FEST | Dirk BARON | Necmettin SARI

Yayıncı: TUBITAK

Dergi: Turkish Journal of Zoology 2015 Vol.39 Issue 5, pp.906-916

Belge Tipi: Makale

Yayın Tarihi: 12/2015

Belge Dili: Türkçe

Document ID (Org No.): 2000774909

Sıklık: İki Aylık

eISSN: 1303-6114

pISSN: 1300-0179

Ostracoda

rheocrene spring

isotope analyses

Mg/Ca ratio

Sr/Ca ratio

Sayı

Yazarlar:

Okan KÜLKÖYLÜOĞLU | Manuel R. PALACIOS-FEST | Dirk BARON | Necmettin SARI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Zoology 2015 Vol.39 Issue 5, pp.906-916

Belge Tipi:

Makale

Yayın Tarihi:

12/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000774909

Sıklık:

İki Aylık

eISSN:

1303-6114

pISSN:

1300-0179