The sea urchin, Paracentrotus lividus, in an Integrated Multi-Trophic Aquaculture (IMTA) system with fish (Sparus aurata) and seaweed (Ulva lactuca): Nitrogen partitioning and proportional configurations

Shpigel, Muki; Shauli, L.; Odintsov, V. S.; BenEzra, David; Neori, Amir; Guttman, Louis

doi:10.1016/j.aquaculture.2018.02.051

Cited by 73 publications

(34 citation statements)

References 67 publications

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“…Reared urchins were exposed throughout their lifetime at the NCM to Red Sea water at temperatures that varied between 21°C in the winter to 29°C in the summer (Yeruham et al 2015, Shpigel et al 2018). Due to the present-day extreme rarity of the species in nature along the Israeli coasts, the sea urchin used in our experiments were brought from the National Center of Mariculture (NCM), where they were reproduced from a Mediterranean 3-yr-old original broodstock.…”

Section: Methodsmentioning

confidence: 99%

“…The source of this broodstock was sea urchins collected from Mikhmoret (central Israel coast) where the current study was conducted. Reared urchins were exposed throughout their lifetime at the NCM to Red Sea water at temperatures that varied between 21°C in the winter to 29°C in the summer (Yeruham et al 2015, Shpigel et al 2018). Prior to the experiments, the sea urchins underwent acclimation to ambient Mediterranean Sea water for 2-4 months (prior to each experiment) in a flow-through seawater system on the Mediterranean coast.…”

Section: Methodsmentioning

confidence: 99%

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Ocean warming and tropical invaders erode the performance of a key herbivore

Yeruham

Shpigel

Abelson

et al. 2019

Ecology

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Citation: Yeruham, E., M. Shpigel, A. Abelson, and G. Rilov. 2020. Ocean warming and tropical invaders erode the performance of a key herbivore. Ecology 101(2):Abstract. Climate change and bioinvasions are two facets of global change that can act in tandem to impact native species and ecosystems. However, their combined effects on key species have rarely been studied. The Mediterranean Sea is a hot spot of both ocean warming and bioinvasions, where their impact can be tested together. In recent years, the population of a key herbivore, the European purple sea urchin (Paracentrotus lividus), has virtually collapsed along the Israeli Mediterranean coast (southeastern Levant). Here, we used field and lab experiments to test two complementary hypotheses that may explain the urchin population collapse: (1) resource competition that may lead to competitive exclusion by invasive grazers (two Red Sea rabbitfishes) and (2) reduced performance due to ocean warming. An inclusion-exclusion in situ caging experiment revealed a strong negative impact of fish grazing on algal cover and on the urchin's gut content and gonado-somatic index (GSI). Laboratory experiments revealed a considerable negative impact of both elevated temperature and food deficiency on sea urchin respiration and GSI, and consequently on its energy budget and reproductive potential and, potentially, fitness. Such reduced reproductive capacity must have greatly lowered the sea urchin's population viability, contributing (and possibly even leading) to its collapse in the southeastern Levant in the past two decades. Urchin population declines are expected to spread to the west and north of the Mediterranean Sea following further warming and rabbitfish expansion. This study is the first to demonstrate the potential additive effects of ocean warming and implied competitive exclusion by an invader on a native species at its warm biogeographic distribution edge.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Ocean warming and tropical invaders erode the performance of a key herbivore

Yeruham

Shpigel

Abelson

et al. 2019

Ecology

Self Cite

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“…The multi‐trophic level integrated aquaculture model is a healthy and sustainable concept of marine aquaculture. In an integrated aquaculture system that contains different trophic organisms (e.g., shellfish‐seaweed, fish‐shellfish‐seaweed, fish‐shellfish‐seaweed‐sea cucumber), the faeces excreted by organisms into the water becomes the nutrient source for other biological functional groups, thereby achieving efficient recycling of nutrients in the aquaculture system, improving food production efficiency and controlling eutrophication of the aquaculture water (Mao, Yang, Zhou, Ye, & Fang, ; Sanz‐Lazaro & Sanchez‐Jerez, ; Shpigel, Ari, Shauli, Odintsov, & Ben‐Ezra, ; Shpigel et al, ; Zhou et al, ). The multi‐trophic level integrated aquaculture model allows for the transfer and recirculation of nutrients among different trophic organisms in the aquaculture system, thereby reducing environmental pressure on the system.…”

Section: Introductionmentioning

confidence: 99%

N and P budgets of Haliotis discus hanai , Apostichopus japonicas , and Sebastes schlegeli in a polyculture system

Gao

Zhang

et al. 2019

Aquac Res

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The viability of placing abalones (Haliotis discus hannai), sea cucumbers (Apostichopus japonicas) and rockfish (Sebastes schlegeli) in a polyculture system, the effect of this mixed species group on the system's nitrogen (N) and phosphorous (P) budgets, and the growth and food intake of the organisms in the system were examined using a recirculating aquaculture system. Four replicates were set up for each of three treatment groups (abalone only (C), abalone-sea cucumber (AS) and abalone-sea cucumber-rockfish (ASF)) with an experimental period of 60 d. Compared with the C group, in the AS group the abalone survival rate and specific growth rate (SGR) of body weight increased and the harvested abalones from the polyculture system became the main source of N and P output of the polyculture system. However, the N and P output in the water layer did not differ significantly from that in the C group (p > 0.05), and the N utilization rate was significantly higher than that in the C and ASF groups (p < 0.05). Compared with the AS group, in the ASF treatment the SGR of body weight as well as the protease and amylase activities of sea cucumbers were significantly higher (p < 0.05), the water layer and faeces became the main sources of N and P output in the system. These results showed that the AS polyculture mode significantly improved the N and P utilization rates in the system and led to increased aquaculture production. K E Y W O R D S Apostichopus japonicas, digestive enzyme activity, Haliotis discus hannai, nitrogen and phosphorus budget, polyculture, Sebastes schlegeli | 2399 GAO et Al. How to cite this article: Gao X, Ke C, Zhang M, Li X, Wu F, Liu Y. N and P budgets of Haliotis discus hanai, Apostichopus japonicas, and Sebastes schlegeli in a polyculture system. Aquac

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“…Methanolic extract of the red macroalga Hypnea spinella showed significant antiviral activity in WSSV-infected freshwater crab Paratelphusa hydrodomous [31]. Therefore, seaweeds have been widely used in recent years in integrated multi-trophic aquaculture (IMTA), and have significantly reduced eutrophication and increased productivity [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Antimicrobial Activities of Seaweed Resources from Zhejiang Coast, China

Sun

et al. 2018

Sustainability

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In order to utilize seaweeds as a natural therapeutic agent in aquatic cultures, it is important to evaluate their antimicrobial activities. We analyzed that of the typical seaweeds of the Zhejiang Coast in order to improve their potential utilization. Six species of seaweeds were collected from the Zhejiang coast-Ulva pertusa, Ulva prolifera, Gloiopeltis furcata, Gracilariopsis lemaneiformis, Sargassum fusiforme and Ishige okamurae-and their ethanolic extracts were tested for antibacterial effects as well as antiviral activity against the white spot syndrome virus (WSSV). The seaweed extracts inhibited bacterial growth in vitro, and increased the immune responsiveness and survival of the crab Scylla paramamosain infected with WSSV in a concentration-dependent manner. U. prolifera, G. lemaneiformis, and S. fusiforme showed the most potent antibacterial activities and most significant enhancement of the innate immunity in healthy crabs. In conclusion, our study showed that the seaweed extracts have therapeutic effects and are a potential natural medicine for aquatic animals.

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The sea urchin, Paracentrotus lividus, in an Integrated Multi-Trophic Aquaculture (IMTA) system with fish (Sparus aurata) and seaweed (Ulva lactuca): Nitrogen partitioning and proportional configurations

Cited by 73 publications

References 67 publications

Ocean warming and tropical invaders erode the performance of a key herbivore

Ocean warming and tropical invaders erode the performance of a key herbivore

N and P budgets of Haliotis discus hanai , Apostichopus japonicas , and Sebastes schlegeli in a polyculture system

Evaluation of Antimicrobial Activities of Seaweed Resources from Zhejiang Coast, China

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