scholarly journals Evaluating Importation of Aquatic Ornamental Species for Biosecurity Purposes

2022 ◽  
Vol 9 ◽  
Author(s):  
Javier Atalah ◽  
Ian C. Davidson ◽  
Maike Thoene ◽  
Eugene Georgiades ◽  
Kate S. Hutson

The aquatic ornamental species (AOS) trade is a significant pathway for the introduction and establishment of non-indigenous species into aquatic environments. The likelihood of such occurrences is expected to increase worldwide as industry growth continues and warmer conditions emerge under future climate scenarios. This study used recent (2015 – 2019) New Zealand importation data to determine the composition, diversity, abundance, and arrival frequency of AOS. Our analysis revealed that ca. 300,000 aquatic ornamental individuals are imported annually to New Zealand, with freshwater fish comprising 98% of import quantities. Despite the relatively small market size, the estimated AOS diversity of 865 taxa (89 and 9.5% identified to species and genus level, respectively) is comparable to larger markets with ∼60% of taxa being of marine origin. Species (n = 20) for further investigation were prioritized based on quantity and frequency of import. These prioritized AOS were exclusively tropical and subtropical freshwater fish and align with the most frequently imported AOS globally, including the top three: neon tetra (Paracheirodon innesi), guppy (Poecilia reticulata), and tiger barb (Puntigrus tetrazona). Species distribution modeling of the 20 prioritized AOS predicted that 13 species are suitable for New Zealand’s current climate conditions, most notably sucker-belly loach (Pseudogastromyzon myersi), white cloud mountain minnow (Tanichthys albonubes), and golden otocinclus (Macrotocinclus affinis). Potential changes in habitat suitability were predicted under future climate scenarios, with largest increases (29%) for Po. reticulata. The described approach provides an adaptable framework to assess establishment likelihood of imported AOS to inform regulatory decision making.

2018 ◽  
Vol 43 (2) ◽  
pp. 314-322
Author(s):  
Nevenka Čavlek ◽  
Chris Cooper ◽  
Vanja Krajinović ◽  
Lidija Srnec ◽  
Ksenija Zaninović

A key element in the product mix of destinations is climate. Climate represents a critical part of a destination’s economic and resource base such that changes in climate will trigger human responses in terms of demand and the type of activities that the climate will support. This threatens the competitiveness, sustainability, and economic viability of destinations. This research note focuses on destination adaptation to climate change that is anticipatory not reactive, based on projecting future climate scenarios for a destination and then assessing the tourism products that the future climate will support. It outlines an original data-driven approach to adaptation that is generalizable to other destinations. The research note describes an exploratory research collaboration in Croatia between tourism and climate scientists that allows, first, the modeling of a destination’s projected climate conditions and, second, the products and activities that can be supported by these climate scenarios using climate indices for tourism.


2015 ◽  
Vol 61 (4) ◽  
pp. 669-689 ◽  
Author(s):  
Pamela D. Noyes ◽  
Sean C. Lema

Abstract Global climate change is impacting organisms, biological communities and ecosystems around the world. While most research has focused on characterizing how the climate is changing, including modeling future climatic conditions and predicting the impacts of these conditions on biodiversity, it is also the case that climate change is altering the environmental impacts of chemical pollution. Future climate conditions are expected to influence both the worldwide distribution of chemicals and the toxicological consequences of chemical exposures to organisms. Many of the environmental changes associated with a warming global climate (e.g., increased average – and possibly extreme – temperatures; intense periods of drier and wetter conditions; reduced ocean pH; altered salinity dynamics in estuaries) have the potential to enhance organism susceptibility to chemical toxicity. Additionally, chemical exposures themselves may impair the ability of organisms to cope with the changing environmental conditions of the shifting climate. Such reciprocity in the interactions between climate change and chemicals illustrates the complexity inherent in predicting the toxicological consequences of chemical exposures under future climate scenarios. Here, we summarize what is currently known about the potential reciprocal effects of climate change and chemical toxicity on wildlife, and depict current approaches and ongoing challenges for incorporating climate effects into chemical testing and assessment. Given the rapid pace of new man-made chemistries, the development of accurate and rapid methods to evaluate multiple chemical and non-chemical stressors in an ecologically relevant context will be critical to understanding toxic and endocrine-disrupting effects of chemical pollutants under future climate scenarios.


Author(s):  
K. G. Dayananda ◽  
Jagath Pathirana ◽  
M. Jim Salinger ◽  
A. Brett Mullan ◽  
Matthew D. Davis ◽  
...  

2007 ◽  
Vol 12 ◽  
pp. 153-158 ◽  
Author(s):  
P. Lionello ◽  
F. Giorgi

Abstract. Future climate projections show higher/lower winter (Dec-Jan-Feb) precipitation in the northern/southern Mediterranean region than in present climate conditions. This paper analyzes the results of regional model simulations of the A2 and B2 scenarios, which confirm this opposite precipitation change and link it to the change of cyclone activity. The increase of the winter cyclone activity in future climate scenarios over western Europe is responsible for the larger precipitation at the northern coast of the basin, though the bulk of the change is located outside the Mediterranean region. The reduction of cyclone activity inside the Mediterranean region in future scenarios is responsible for the lower precipitation at the southern and eastern Mediterranean coast.


2021 ◽  
Author(s):  
Jing Yang ◽  
Channa Rajanayaka ◽  
Lawrence Kees ◽  
Christian Zammit

<p>Climate and its variability have a considerable impact on seasonal water resources availability. Understanding the impact of climate change and the time lagged  response in areas where groundwater is the main water resource supporting human activity (water supply, agriculture and industry), is necessary to manage potentially damaging consequences for hydrologically-driven ecological functions, ecosystem services, economic response and adaptation, cultural values and recreation.  </p><p>In this study, we assess the impact of climate change on groundwater in Edendale area, South New Zealand, which has been experiencing increasing water abstraction pressure and declining groundwater level. We use downscaled CMIP5 IPCC climate predictions to drive a hydrologic model (TopNet) to simulate changes in land surface recharge (LSR) under different climate models and future climate scenarios (i.e. RCPs – Representative Concentration Pathways) , and then the ensemble of LSR simulations further drive the Edendale groundwater model (MODFLOW) to simulate groundwater system.</p><p>Our initial result show: in spite of differences in simulations of different climate models and future climate scenarios, to the end of this century, there will be a slight annual increasing trend both for precipitation and LSR, significantly in Autumn and less significantly in other seasons; generally groundwater level and groundwater discharge (to rivers) will be increasing, following seasonal and annual patterns of changes in precipitation and LSR; differences are large for both climate models and future scenarios, largest for RCP8.5 and smallest for RCP2.6. We hope the results will support the long-term water management planning in the Edendale area.</p>


Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3474
Author(s):  
Gengmin Jiang ◽  
Xiaobo Gu ◽  
Dongsheng Zhao ◽  
Jun Xu ◽  
Changkun Yang ◽  
...  

In the context of global warming, agricultural production and social and economic development are significantly affected by drought. The future change of climate conditions is uncertain; thus, it is of great importance to clarify the aspects of drought in order to define local and regional drought adaptation strategies. In this study, the meteorological data from 1976 to 2005 was used as a historical reference, and nine Global Climate Models (GCMs), downscaling to meteorological stations from 2039 to 2089, were used as future climate data. Based on Penman–Monteith, the reference crop Evapotranspiration (ET0) and Standardized Precipitation Evapotranspiration Index (SPEI) of the reference crop in three emission scenarios of RCP2.6, RCP4.5, and RCP8.5, under future climate conditions, were calculated. A non-parameter Mann–Kendall trend test was performed on temperature, precipitation, ET0, and SPEI to analyze the drought spatiotemporal distribution traits under upcoming climate scenarios. The results showed that, under future climate conditions, SPEI values in most areas of the Huang-Huai-Hai region would continuously increase year by year, and drought would be alleviated to some extent at the same pace. However, with the increase of greenhouse gas concentration in the emission scenarios, SPEI values continued to decline. In the RCP8.5 scenario, the area of severe drought was large. To sum up, in the future climate scenario, the degree of drought in the Huang-Huai-Hai region will be alleviated to some extent with the increase of rainfall, but with the increase of greenhouse gas concentration, the degree of drought will be further intensified, posing a huge challenge to agricultural water use in the region. This study provides a theoretical foundation for alleviating drought in the Huang-Huai-Hai region in future climate scenarios.


2021 ◽  
Author(s):  
Sierra N. Smith ◽  
Ingo Schlupp ◽  
Edward D. Higgins ◽  
Jessa L. Watters ◽  
Kerri‐Ann Bennett ◽  
...  

2021 ◽  
Vol 112 ◽  
pp. 102711
Author(s):  
Soheil Radfar ◽  
Mehdi Shafieefar ◽  
Hassan Akbari ◽  
Panagiota A. Galiatsatou ◽  
Ahmad Rezaee Mazyak

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