Low salinity reduces survival rate of a commercially important sea cucumber (Sandfish: Holothuria scabra)

Tuwo, Ambo; Yasir, Inayah; Syafiuddin,; Aprianto, R; Yanti, A; Bestari, A D; Tresnati, Joeharnani

doi:10.1088/1755-1315/564/1/012088

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…However, salinities of 28–34 ppt are preferred for the growth of another sea cucumbers, Holothuria scabra (Asha et al, 2011). A report indicated that salinity has severe impacts on survival rate (Tuwo et al, 2020), ion homeostasis and histological structure (Geng et al, 2016), ionic gradients and tissue hydration (Castellano et al, 2016), and growth and respiration (Bai et al, 2015; Russell, 2013).…”

Section: Introductionmentioning

confidence: 99%

Salinity stress alters the expression patterns of novel miR‐2008 and its target gene PLEKHA3 in the sea cucumber Apostichopus japonicus

Tian

Gou

Wang

et al. 2022

J World Aquaculture Soc

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The responses of sea cucumbers to salinity changes are reflected in the expression profiles of multiple genes and microRNAs. The miR‐2008 and Pleckstrin Homology Domain Containing A3 (PLEKHA3) were previously shown to be involved in responses to salinity changes in sea cucumbers. To better understand the relationship between miR‐2008 and PLEKHA3, the miR‐2008 and PLEKHA3 predicted interaction was investigated using luciferase reporter assays and gene knockdowns. Dual‐luciferase reporter gene analysis indicated that miR‐2008 overexpression decreased luciferase activity in the PLEKHA3‐WT group. The miR‐2008 expression in coelomocytes was increasingly downregulated in the agomir group with salinity acclimation. PLEKHA3 expression patterns in the miR‐2008 agomir group were upregulated after 6 and 48 h and downregulated after 24 h of low‐salinity stress. The miR‐2008 expression in the miR‐2008 agomir group peaked after 24 h of low‐salinity exposure in sea cucumbers. miR‐2008 overexpression and PLEKHA3 inhibition affected ion concentrations, osmotic pressure, Na+/K+‐ATPase (NKA) activity, and ROS levels. The changes in ion concentrations, osmotic pressure, and NKA activity after 6–24 h of salinity stress were observed. The results indicated that 6–24 h after the initiation of salinity stress may be critical to the salinity‐acclimation process in sea cucumbers.

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Section: Introductionmentioning

confidence: 99%

Salinity stress alters the expression patterns of novel miR‐2008 and its target gene PLEKHA3 in the sea cucumber Apostichopus japonicus

Tian

Gou

Wang

et al. 2022

J World Aquaculture Soc

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Effects of salinity changes on larval survival, growth, and development of the edible sea cucumber, Holothuria leucospilota (Brandt, 1835) at two developmental stages

Jiang

Hong

et al. 2023

Aquaculture Reports

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Peanut Crab Pinnotheres halingi, a symbiotic commensal or parasite of Sandfish Holothuria scabra?

Tresnati

Yasir

Aprianto

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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High mortality of sandfish Holothuria scabra broodstock is one of the main problems in sea cucumber hatcheries. Broodstock collected from wild are very difficult to keep alive for long periods because the broodstock readily eviscerate. One cause of evisceration and death is probably due to the presence of peanut crabs Pinnotheres halingi in body cavity as commensal. This study aimed to analyse the mortality of sandfish due to the presence of peanut crabs as commensal. Sandfish samples were collected in Liukang Tupabbiring Utara District, Pangkep Regency in South Sulawesi, Indonesia. During the study, 139 sandfish were observed in rearing nine tanks at the laboratory. The results of this study are not strong enough to state that peanut crab is a symbiotic commensal or parasite. The peanut crab is thought to have turned into a predator when it starved. Peanut crab malignancy as a predator can cause the death of 139 sandfish in 92 days. This is thought to be the reason why broodstock is very difficult to rear for a long period in a controlled tank in a laboratory or hatchery.

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Low salinity reduces survival rate of a commercially important sea cucumber (Sandfish: Holothuria scabra)

Cited by 4 publications

References 26 publications

Salinity stress alters the expression patterns of novel miR‐2008 and its target gene PLEKHA3 in the sea cucumber Apostichopus japonicus

Salinity stress alters the expression patterns of novel miR‐2008 and its target gene PLEKHA3 in the sea cucumber Apostichopus japonicus

Effects of salinity changes on larval survival, growth, and development of the edible sea cucumber, Holothuria leucospilota (Brandt, 1835) at two developmental stages

Peanut Crab Pinnotheres halingi, a symbiotic commensal or parasite of Sandfish Holothuria scabra?

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