Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone

2019 ◽  
Vol 142 ◽  
pp. 595-602
Author(s):  
Hassan Hassan ◽  
Ahmed Abou Elezz ◽  
Mazen Abuasali ◽  
Hamood AlSaadi
Author(s):  
P. S. Sorokin ◽  

The existing approaches and regulations for the determination of the marine boundaries of the part of coastal-marine natural management are analyzed. There are no uniform boundaries in the direction toward the sea, despite the presence of numerous definitions of the coastal zone. For the purposes of maritime activities management, i.e. coastal and oceanic natural management, the geomorphological definition of the coastal zone becomes insufficient due to the greater dependence on the land space. Therefore, it is proposed to use the term "coastal-marine zone" with a broader definition, including, in addition to territorial, coastal and aquatic structures. The coastal-sea zone boundaries can be established depending on the research objectives. In our research, we suggest to establish this kind of depth boundary, considering it a limiting factor of marine economic activities.


SIMBIOSA ◽  
2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Notowinarto Notowinarto ◽  
Ramses Ramses ◽  
Mulhairi Mulhairi

Bulang districts Batam Islands of  Riau province (Riau Islands), its consists of many islands with as well as having the potential diversity of coastal marine life in particular kinds of macro algae or seaweed. Conducted research aimed to determine the structure of macro- algal communities in the intertidal zone islands. The results of the identification of algal species found 16 species are: the Order of Chlorophyceae as 6 spesies; Order Phaeophyceae as 2 spesies; and Order Rhodophyceae as 8 spesies. The community structure at the five stations showed the highest values were found in the island of dominance Cicir (D ' = 0.79) , uniformity index values on Tengah Island (E ' = 0.99) , while the island Balak had the highest diversity index (H ' = 0.88) , with the abundance patterns of population structure on the island is pretty good Central . Results of correlation analysis of regression between IVI types of algae with the conditions of environmental quality suggests that there is a significance (Fhit ˃ F table and the value of r = > 90 %) between IVI algae Halimeda sp and Cryptarachne polyglandulosa at each station with a temperature parameter surface (⁰C) , depth temperature (⁰C) and pH values. Keywords : Algae, Community Structure, Important Value Index.


2014 ◽  
Vol 496 ◽  
pp. 71-84 ◽  
Author(s):  
SM Wilson ◽  
SG Hinch ◽  
SM Drenner ◽  
EG Martins ◽  
NB Furey ◽  
...  

Shore & Beach ◽  
2020 ◽  
pp. 53-64
Author(s):  
Edward Atkin ◽  
Dan Reineman ◽  
Jesse Reiblich ◽  
David Revell

Surf breaks are finite, valuable, and vulnerable natural resources, that not only influence community and cultural identities, but are a source of revenue and provide a range of health benefits. Despite these values, surf breaks largely lack recognition as coastal resources and therefore the associated management measures required to maintain them. Some countries, especially those endowed with high-quality surf breaks and where the sport of surfing is accepted as mainstream, have recognized the value of surfing resources and have specific policies for their conservation. In Aotearoa New Zealand surf breaks are included within national environmental policy. Aotearoa New Zealand has recently produced Management Guidelines for Surfing Resources (MGSR), which were developed in conjunction with universities, regional authorities, not-for-profit entities, and government agencies. The MGSR provide recommendations for both consenting authorities and those wishing to undertake activities in the coastal marine area, as well as tools and techniques to aid in the management of surfing resources. While the MGSR are firmly aligned with Aotearoa New Zealand’s cultural and legal frameworks, much of their content is applicable to surf breaks worldwide. In the United States, there are several national-level and state-level statutes that are generally relevant to various aspects of surfing resources, but there is no law or policy that directly addresses them. This paper describes the MGSR, considers California’s existing governance frameworks, and examines the potential benefits of adapting and expanding the MGSR in this state.


2001 ◽  
Author(s):  
Brian H. Fiedler ◽  
Yefim Kogan ◽  
Alan Shapiro ◽  
Vince Wong ◽  
Joshua Wurman

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