Jellyfish Impacts on Marine Aquaculture and Fisheries

Bosch-Belmar, Mar; Milisenda, Giacomo; Basso, Lorena; Doyle, Thomas K.; Leone, Antonella; Piraino, Stefano

doi:10.1080/23308249.2020.1806201

Cited by 77 publications

(51 citation statements)

References 79 publications

(122 reference statements)

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“…The consequences of such HAB events include reduced water quality and toxin build-up in sh and shell sh, with potential subsequent impacts on human health (GEOHAB 2010; Young et al 2020). Rising temperatures can also increase the risk of disease in cultured sh (Reverter et al 2020), shell sh (Allison et al 2011) and seaweed (Largo et al 2017) and can lead to a rising number of jelly sh blooms or invasions that may affect aquaculture (Xu et al 2013;Bosch-Belmar et al 2020). Climate change driven changes in the timing of seasons is also likely to affect aquaculture production cycles, where activities are tightly timed to sharp climatic variations between monsoon/intermonsoon periods.…”

Section: Discussionmentioning

confidence: 99%

Projected Impacts of Climate Change on the Physical and Biogeochemical Environment in Southeast Asian Seas

Kay¹,

Avillanosa²,

Cheung³

et al. 2021

Preprint

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The seas of Southeast Asia are home to some of the world’s most diverse ecosystems and resources that support the livelihoods and wellbeing of millions of people. Climate change will bring temperature changes, acidification and other environmental change, with uncertain consequences for human and natural systems in the region. We present the first regional-scale projections of change in the marine environment up to the end of 21st century. A coupled physical-biogeochemical model with a resolution of 0.1° (approximately 11 km) was used to create projections of future environmental conditions under two greenhouse gas scenarios, RCP4.5 and RCP8.5. These show a sea that is warming by 1.1–2.9°C through the 21st century, with surface pH falling by up to 0.02 and dissolved oxygen decreasing by 5 to 13 mmol m− 3. Changes for different parts of the region, including four sensitive coastal sites, are presented. The changes reach all parts of the water column and many places are projected to experience conditions well outside the range seen at the start of the century. Altered species distribution and damage to coral reefs resulting from this environmental change would have consequences for biodiversity, for the livelihoods of small-scale fishers and for the food security of coastal communities across the region. Projections of this type are a key tool for communities planning how they will adapt to the challenge of climate change.

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Section: Discussionmentioning

confidence: 99%

Projected Impacts of Climate Change on the Physical and Biogeochemical Environment in Southeast Asian Seas

Kay¹,

Avillanosa²,

Cheung³

et al. 2021

Preprint

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show abstract

“…Based on the concentration of residential and industrial facilities along the Uljin coast, in particular, and nuclear power plant locations, three indicators for land-based pollution were selected: domestic sewage (H2), industrial sewage (H3), and industrial heated effluent (H4) [29,30]. As the indicators for the driving forces of accident and disaster, deaths by disaster (S2), jellyfish bloom (B1), and economic loss by jellyfish (E1) were chosen to consider a reduction in sustainability and biodiversity and also economic loss due to jellyfish bloom [31][32][33].…”

Section: Driving Forces and Indicatorsmentioning

confidence: 99%

A Concept and Framework of the Extended Ecosystem-Based Fisheries Assessment Approach Incorporating Other Driving Forces

Kang

Zhang

2021

JMSE

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The ecosystem-based fisheries assessment (EBFA) approach to evaluate four management objectives: sustainability, biodiversity, habitat quality, and socio-economic benefits, has been developed in previous studies. The existing EBFA approach is a risk-based assessment framework and was designed to assess the impacts of fisheries on offshore ecosystems. This approach only considers one driving force of wild capture fisheries. However, in coastal ecosystems, there are a number of anthropogenic activities. In this study, we propose an extended EBFA approach that incorporates the effects of capture fisheries and other driving forces, including various human activities and natural processes. This paper focuses on (i) revising the process and equations related to the nested risk indices defined in the existing EBFA approach, and (ii) demonstrating the applicability of the proposed approach by applying it to Uljin coastal waters and comparing the results with the previous case study of the existing EBFA. However, indicators and their relevant reference points have not yet been fully developed—particularly for the tier 1 approach. Hence, further research, especially regarding the reference points, would be required for practical use of the proposed approach.

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“…Jellyfish blooms can be even more damaging when alien species are involved [5] both affecting marine biodiversity through predation and competition [7] and causing economic damages on several human activities in the coastal zone (e.g., tourism, coastal industry, fishery and aquaculture) [12,13]. Jellyfish such as Cassiopea spp., Phyllorhiza punctata, Rhopilema nomadica are some of the successful non-native species colonizing the Mediterranean Sea (reviewed by Bayha and Graham [14]).…”

Section: Introductionmentioning

confidence: 99%

High photosynthetic plasticity may reinforce invasiveness of upside-down zooxanthellate jellyfish in Mediterranean coastal waters

Mammone

Ferrier‐Pagés

Lavorano³

et al. 2021

PLoS ONE

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Ecological profiling of non-native species is essential to predict their dispersal and invasiveness potential across different areas of the world. Cassiopea is a monophyletic taxonomic group of scyphozoan mixotrophic jellyfish including C. andromeda, a recent colonizer of sheltered, shallow-water habitats of the Mediterranean Sea, such as harbors and other light-limited, eutrophic coastal habitats. To assess the ecophysiological plasticity of Cassiopea jellyfish and their potential to spread across the Mare Nostrum by secondary introductions, we investigated rapid photosynthetic responses of jellyfish to irradiance transitions—from reduced to increased irradiance conditions (as paradigm of transition from harbors to coastal, meso/oligotrophic habitats). Laboratory incubation experiments were carried out to compare oxygen fluxes and photobiological variables in Cassiopea sp. immature specimens pre-acclimated to low irradiance (PAR = 200 μmol photons m−2 s−1) and specimens rapidly exposed to higher irradiance levels (PAR = 500 μmol photons m−2 s−1). Comparable photosynthetic potential and high photosynthetic rates were measured at both irradiance values, as also shown by the rapid light curves. No significant differences were observed in terms of symbiont abundance between control and treated specimens. However, jellyfish kept at the low irradiance showed a higher content in chlorophyll a and c (0.76±0.51SD vs 0.46±0.13SD mg g-1 AFDW) and a higher Ci (amount of chlorophyll per cell) compared to jellyfish exposed to higher irradiance levels. The ratio between gross photosynthesis and respiration (P:R) was >1, indicating a significant input from the autotrophic metabolism. Cassiopea sp. specimens showed high photosynthetic performances, at both low and high irradiance, demonstrating high potential to adapt to sudden changes in light exposure. Such photosynthetic plasticity, combined with Cassiopea eurythermal tolerance and mixotrophic behavior, jointly suggest the upside-down jellyfish as a potentially successful invader in the scenario of a warming Mediterranean Sea.

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Jellyfish Impacts on Marine Aquaculture and Fisheries

Cited by 77 publications

References 79 publications

Projected Impacts of Climate Change on the Physical and Biogeochemical Environment in Southeast Asian Seas

Projected Impacts of Climate Change on the Physical and Biogeochemical Environment in Southeast Asian Seas

A Concept and Framework of the Extended Ecosystem-Based Fisheries Assessment Approach Incorporating Other Driving Forces

High photosynthetic plasticity may reinforce invasiveness of upside-down zooxanthellate jellyfish in Mediterranean coastal waters

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