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Dergiler / Su Ürünleri Dergisi / 2018 / Cilt: 35 - Sayı: 4

Effects of various stocking densities on hatching and survival rates of sea cucumber Holothuria tubulosa eggs (Gmelin, 1788)

Farklı stok yoğunluklarının deniz hıyarı Holothuria tubulosa (Gmelin, 1788) yumurtalarının açılma ve yaşama oranlarına etkileri

Deniz GÜNAY
Mustafa Tolga TOLON
Dilek EMİROĞLU
Sayfa
381–386
DOI
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As a result, the optimal stocking density for the highest hatching and survival rates of the fertilized eggs of Holothuria tubulosa was determined as 1-5 eggs / ml.

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Amaç & Hipotez:: In this study, it was aimed to determine the opening and survival rates of Holothuria tubulosa eggs at four different stocking densities (1,5,15,30 eggs / ml) and to determine the effect of stocking density on egg size and larval size in different stages.
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Temel Bulgular & Veri:Fertilized Holothuria tubulosa eggs were stocked in cylindrical conical collectors with a capacity of 30 l.
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Sonuç & Katkı:As a result, the optimal stocking density for the highest hatching and survival rates of the fertilized eggs of Holothuria tubulosa was determined as 1-5 eggs / ml.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

: In this study, it was aimed to determine the opening and survival rates of Holothuria tubulosa eggs at four different stocking densities (1,5,15,30 eggs / ml) and to determine the effect of stocking density on egg size and larval size in different stages. Fertilized Holothuria tubulosa eggs were stocked in cylindrical conical collectors with a capacity of 30 l. Eggs were counted under light microscope at fertilization, early gastrulation, late gastrulation and hatching stages. It was found that there is an inverse relationship between stock intensity and opening rate (r = -0.848; p 0.05) and the length of early auricularia larva at 65 h (p> 0.05). As a result, the optimal stocking density for the highest hatching and survival rates of the fertilized eggs of Holothuria tubulosa was determined as 1-5 eggs / ml.

Abstract

Bu çalışmada, Holothuria tubulosa yumurtalarının, dört farklı stok yoğunluğunda (1,5,15,30 yumurta/ml) açılma ve yaşama oranlarını belirlemek ve aynı zamanda stok yoğunluğunun farklı evrelerdeki yumurta çapına ve larval boyutuna etkisini ortaya koymak amaçlanmıştır. Döllenmiş Holothuria tubulosa yumurtaları, 30 l hacimli silindir konik kollektörlere stoklanmıştır. Yumurtalar; döllenme anında, erken gastrulasyon, geç gastrulasyon ve yumurtadan çıkma aşamasında mikroskop altında sayılmıştır. Stok yoğunluğu ile açılma oranı arasında ters ilişki olduğu bulunmuştur (r = -0.848; p 0.05) ve 65. saatteki erken auricularia larvasının boyunu (p>0.05) etkilememiştir. Sonuç olarak, Holothuria tubulosa’nın döllenmiş yumurtalarının en yüksek açılma ve yaşama oranları için optimum stoklama yoğunluğu 1-5 yumurta / ml olmuştur.

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Bu Makaleye Atıf Yap

GÜNAY, D., TOLON, M. T., EMİROĞLU, D. (2018). Effects of various stocking densities on hatching and survival rates of sea cucumber Holothuria tubulosa eggs (Gmelin, 1788). Su Ürünleri Dergisi, Cilt: 35 - Sayı: 4, 381–386. https://ajindex.com/articles/310971

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Kaynakça (5)

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