Araştırma Makalesi

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

Cilt: 35 Sayı: 4 15 Aralık 2018
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Effects of various stocking densities on hatching and survival rates of sea cucumber Holothuria tubulosa eggs (Gmelin, 1788)

Abstract

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<0.001). The lowest hatching and survival rate was determined in 30 eggs / ml group (p <0.05). However, different stocking densities did not affect the diameter of the egg in different embryological stages (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.

Keywords

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

-

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

15 Aralık 2018

Gönderilme Tarihi

15 Mayıs 2018

Kabul Tarihi

11 Temmuz 2018

Yayımlandığı Sayı

Yıl 1970 Cilt: 35 Sayı: 4

Kaynak Göster

APA
Günay, D., Tolon, M. T., & Emiroğlu, D. (2018). Effects of various stocking densities on hatching and survival rates of sea cucumber Holothuria tubulosa eggs (Gmelin, 1788). Ege Journal of Fisheries and Aquatic Sciences, 35(4), 381-386. https://doi.org/10.12714/egejfas.2018.35.4.03

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