Combining a cumulative risk index and species distribution data to identify priority areas for marine biodiversity conservation in the Black Sea

2021 ◽  
Vol 213 ◽  
pp. 105877
Author(s):  
Vasiliki Almpanidou ◽  
Aggeliki Doxa ◽  
Antonios D. Mazaris
Keyword(s):  
Biodiversity Conservation ◽  
Black Sea ◽  
Species Distribution ◽  
Risk Index ◽  
Cumulative Risk ◽  
The Black Sea ◽  
Marine Biodiversity ◽  
Distribution Data ◽  
Priority Areas

scholarly journals Decline of unique Pontocaspian biodiversity in the Black Sea Basin: a review

2021 ◽  
Author(s):  
Aleksandre Gogaladze ◽  
Mikhail Son ◽  
Matteo Lattuada ◽  
Vitaliy Anistratenko ◽  
Vitaly Syomin ◽  
...  
Keyword(s):  
Black Sea ◽  
Species Distribution ◽  
The Black Sea ◽  
Distribution Data ◽  
Past Century ◽  
Detailed Knowledge ◽  
The Past ◽  
Mollusc Species ◽  
Anthropogenic Threats ◽  
Effective Conservation

Aim The unique aquatic Pontocaspian (PC) biota of the Black Sea Basin (BSB) is in decline. Lack of detailed knowledge on the status and trends of species, populations and communities hampers a thorough risk assessment and precludes effective conservation. This paper aims to review PC biodiversity trends using endemic molluscs as a model group. We aim to assess changes in PC habitats, community structure and species distribution over the past century and to identify direct anthropogenic threats. Location Black Sea Basin (Bulgaria, Romania, Moldova, Ukraine and Russia). Methods Presence/absence data of target mollusc species was assembled from literature, reports and personal observations. PC biodiversity trends in the NW BSB coastal regions were established by comparing 20th and 21st century occurrences. Direct drivers of habitat and biodiversity change were identified and documented. Results A very strong decline of PC species and communities during the past century is driven by a) damming of rivers, b) habitat modifications negatively affecting salinity gradients, c) pollution and eutrophication, d) invasive alien species and e) climate change. Four out of 10 studied regions, namely, the Danube Delta – Razim Lake system, Dniester Liman, Dnieper-South Bug Estuary and Taganrog Bay-Don Delta contain the entire spectrum of ecological conditions to support PC communities and still host threatened endemic PC mollusc species. Distribution data is incomplete, but the scale of deterioration of PC species and communities is evident from the assembled data, as are major direct threats. Main conclusions PC biodiversity in the BSB is profoundly affected by human activities. Standardised observation and collection data as well as precise definition of PC biota and habitats are necessary for targeted conservation actions. This study will help to set the research and policy agenda required to improve data collection to accommodate effective conservation of the unique PC biota.

scholarly journals Delineating priority areas for marine biodiversity conservation in the Coral Triangle

2018 ◽  
Author(s):  
Irawan Asaad ◽  
Carolyn J. Lundquist ◽  
Mark V. Erdmann ◽  
Mark J. Costello
Keyword(s):  
Species Richness ◽  
Biodiversity Conservation ◽  
Sea Turtle ◽  
The Philippines ◽  
Biological Information ◽  
Marine Biodiversity ◽  
Distribution Data ◽  
Coral Triangle ◽  
Priority Areas ◽  
Conservation Concern

Identifying priority areas for biodiversity conservation requires systematic approaches and integrated ecological and biological information. Here, we applied a range of ecological criteria to assess areas of biodiversity importance in the Coral Triangle region, a priority region for marine biodiversity conservation because of its high species richness and endemicity. We used distribution data of three biogenic habitats to assess the criterion of sensitive habitat, modeled geographic distributions of 10,672 species ranges and occurrence records of 19,251 species to evaluate the criterion of species richness, distributions of 834 species of special conservation concern to examine the criterion of species of conservation concern, distributions of 373 reef fish species to assess the criterion of restricted-range species, and distribution of nesting sites and migratory route of six species of sea turtle to evaluate the criterion of areas of importance for particular life history stages. We identified areas of biodiversity importance by superimposing each of the different criterion. We performed two tiers of multi-criteria analysis: (1) a Coral Triangle regional level analysis to identify “clustered hotspots” (i.e., groups of cells) of biodiversity significance, and (2) a site-based analysis to identify the specific sites (cells) of greatest biodiversity importance. We found that approximately 13% of the Coral Triangle was clustered into hotspots of high biodiversity importance. These areas occurred along the southern part of the Philippines, the north-eastern part of Malaysian Sabah, central to eastern reaches of Indonesia, the eastern part of Papua New Guinea and the Solomon Islands. By comparison, the site-based analysis identified seven sites of highest biodiversity importance in the Coral Triangle include: (1) the northern tip of Sulawesi Island, (2) Ambon Island, (3) Kei Islands, (4) Raja Ampat Archipelago of Indonesian Papua, (5) the Verde Island Passage, (6) the southern part of Negros Island, and (7) Cebu Island. This information is useful to inform participatory decision-making processes in the Coral Triangle region to identify priority areas for conservation and management.

scholarly journals Delineating priority areas for marine biodiversity conservation in the Coral Triangle

2018 ◽  
Vol 222 ◽  
pp. 198-211 ◽  
Author(s):  
Irawan Asaad ◽  
Carolyn J. Lundquist ◽  
Mark V. Erdmann ◽  
Mark J. Costello
Keyword(s):  
Biodiversity Conservation ◽  
Marine Biodiversity ◽  
Coral Triangle ◽  
Priority Areas

Identification of the priority areas for marine biodiversity conservation

2013 ◽  
Vol 21 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Lin Jinlan ◽  
Chen Bin ◽  
Huang Hao ◽  
Yu Weiwei ◽  
Ma Zhiyuan ◽  
...  
Keyword(s):  
Biodiversity Conservation ◽  
Marine Biodiversity ◽  
Priority Areas

scholarly journals Social network analysis and the implications for Pontocaspian biodiversity conservation in Romania and Ukraine: A comparative study

2019 ◽  
Author(s):  
Aleksandre Gogaladze ◽  
Niels Raes ◽  
Koos Biesmeijer ◽  
Camelia Ionescu ◽  
Bianca Pavel ◽  
...  
Keyword(s):  
Social Network ◽  
Social Network Analysis ◽  
Network Analysis ◽  
Biodiversity Conservation ◽  
Black Sea ◽  
The Black Sea ◽  
The European Union ◽  
Conservation Action ◽  
Social Network Structure ◽  
The Social

AbstractRomania and Ukraine share the Black Sea coastline, the Danube Delta and associated habitats, which harbor the unique Pontocaspian biodiversity. Pontocaspian biota represents endemic aquatic taxa adapted to the brackish (anomalohaline) conditions, which evolved in the Caspian and Black Sea basins. Currently, this biota is diminishing both in the numbers of species and their abundance because of human activities. Consequently, its future persistence strongly depends on the adequacy of conservation measures. Romania and Ukraine have a common responsibility to effectively address the conservation of this biota. The socio-political and legal conservation frameworks, however, differ in the two countries - Romania is a member of the European Union (EU), thus complying with the EU environmental policy, whereas Ukraine is an EU-associated country. This may result in differences in the social network structure of stakeholder institutions with different implications for Pontocaspian biodiversity conservation. Here, we study the structure and implications of the social network of stakeholder organizations involved in conservation of Pontocaspian biodiversity in Romania, and compare it to Ukraine. We apply a mix of qualitative and quantitative social network analysis methods to combine the content and context of the interactions with relational measures. We show that the social networks of stakeholder organizations in Romania and Ukraine are very different. Structurally, in Romanian network there is a room for improvement through e.g. more involvement of governmental and non-governmental organizations and increased motivation of central stakeholders to initiate conservation action, whereas Ukrainian network is close to optimal. Regardless, both networks translate into sub-optimal conservation action and the road to optimal conservation is different. We end with sketching implications and recommendations for improved national and cross-border conservation efforts.

scholarly journals Invasive species in the context of climate change: the case of Magallana Gigas (Thunberg, 1793) in the Black Sea

2021 ◽  
Author(s):  
Ana-Maria Krapa ◽  
◽  
Elena Buhaciuc-Ionita ◽  
Marian Ionita ◽  
Elena Iulia Iorgu ◽  
...  
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Black Sea ◽  
Species Distribution ◽  
Climate Changes ◽  
Pacific Oyster ◽  
Current Situation ◽  
The Black Sea ◽  
Current Climate ◽  
The Pacific

The current climate changes are having a significant impact on species distribution. While some species are affected, others are thriving in these new conditions, expanding their range. This is also the case of some invasive species who seem to benefit from these changes. The invasive Pacific oyster Magallana gigas is among these species. The current situation of the Pacific oyster in the Black Sea is discussed, with new data from the Romanian waters.

scholarly journals Health risk assessment: heavy metals in fish from the southern Black Sea

2020 ◽  
Vol 8 (1) ◽  
pp. 115-124 ◽  
Author(s):  
Levent Bat ◽  
Ayşah Öztekin ◽  
Elif Arici ◽  
Fatih Şahin
Keyword(s):  
Heavy Metals ◽  
Black Sea ◽  
Hazard Quotient ◽  
Risk Index ◽  
Hazard Index ◽  
The Black Sea ◽  
Target Hazard Quotient ◽  
Mean Values ◽  
Red Mullet ◽  
Cu And Zn

Introduction. The coastal contamination of the Black Sea has been an important issue for several decades. Heavy metals are the most harmful contaminants which affect people health. The research objective of the present study was to determine the amounts of Cd, Hg, Pb, Cu, and Zn found in the whiting (M. merlangus L.) and the red mullet (M. barbatus L.). These Black Sea bottom fish species have the highest commercial value. The obtained data were used to assess the risk which the fish represents for human consumers. Study objects and methods. The elements were detected using an inductively coupled plasma mass spectrometer (ICP-MS). The amounts of the metals arranged in the following order: Zn > Cu > Pb > Hg > Cd. Results and discussion. The mean values of Cd, Hg, Pb, Cu, and Zn in the edible tissues were 0.013, 0.024, 0.07, 0.195, and 9.05 mg/kg wet wt. for whiting and 0.017, 0.036, 0.05, 0.29, and 6.4 mg/kg wet wt. for red mullet, respectively. These levels proved lower than the permitted values set by the Ministry of Agriculture, Forestry, and Fisheries of the UK (MAFF), Turkish Food Codex (TFC), and EU Commission Regulation. The target hazard quotient (THQ) for all the elements via consumption of whiting and red mullet were also low. Conclusion. Hazard index (HI) was ˂ 1, which means that the fish caused no health problems in people who consumed whiting and red mullet caught in the southern Black Sea during the fishing seasons of 2017–2018. The carcinogenic risk index (CRI) for whiting and red mullet was also considered insignificant.

Sign in / Sign up

Export Citation Format

Share Document