Exploring simple ecological indicators on landings and market trends in the South Brazil Shelf Large Marine Ecosystem

2019 ◽  
Vol 26 (3) ◽  
pp. 200-210 ◽  
Author(s):  
Ruth B. M. Pincinato ◽  
Maria A. Gasalla
Keyword(s):  
Marine Ecosystem ◽  
Ecological Indicators ◽  
The South ◽  
Large Marine Ecosystem ◽  
Market Trends ◽  
South Brazil

Condominium Arrangements as a Legal Mechanism for the Conservation of the South China Sea Large Marine Ecosystem

2017 ◽  
Vol 2 (1) ◽  
pp. 52-87 ◽  
Author(s):  
Michelle Lim ◽  
Nengye Liu
Keyword(s):  
South China Sea ◽  
South China ◽  
Marine Ecosystem ◽  
The South China Sea ◽  
Collaborative Management ◽  
Marine Biodiversity ◽  
The South ◽  
Governance Arrangement ◽  
China Sea ◽  
Large Marine Ecosystem

The South China Sea Large Marine Ecosystem is one of the world’s richest marine biodiversity areas. The sea area is however the site of increasing tensions between its ten coastal States, six of which have competing claims in the South China Sea. The expanding populations and economies of the coastal States have also resulted in the growing depletion of the Sea’s rich marine resources. Coordinated approaches are needed to protect the unique biodiversity and natural resources of the South China Sea at the appropriate ecological scale. The continuation of sovereignty disputes are detrimental to all coastal states as well as international economic interests of non-claimant states which arise as a result of the Sea’s status as a globally important trade route. This paper urges coastal states to adopt a far-sighted outlook which ensures long-term sustainable ecosystems, livelihoods and economies of the region. To do this, a shift in approach which emphasises collaborative management of marine ecosystems is required instead of a scramble for sovereignty to exclusively exploit living and non-living resources. This paper therefore explores how the shared governance arrangement of a condominium could facilitate the exercise of sovereignty for the shared benefit of all coastal States. The paper argues that the condominium approach would enable State parties to put aside thorny sovereignty disputes in favour of collaboration to protect the area’s important and unique biodiversity.

scholarly journals Functional redundancy in polychaete assemblages from a tropical Large Marine Ecosystem (LME)

Zoosymposia ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 72-90
Author(s):  
BARBARA C.G. GIMENEZ ◽  
PAULO LANA
Keyword(s):  
Continental Shelf ◽  
Marine Ecosystem ◽  
Functional Redundancy ◽  
Estuarine Environment ◽  
Environmental Drivers ◽  
Unique Combination ◽  
Marine Life ◽  
Low Level ◽  
Large Marine Ecosystem ◽  
South Brazil

Functional redundancy assumes a critical relevance nowadays due to the serious threats that affect marine life worldwide. We assessed and compared levels of functional redundancy in polychaete assemblages from the continental shelf and from estuarine environments along the South Brazil Shelf Large Marine Ecosystem (SBSLME). To quantify functional redundancy, we used functional originality (FOri) and functional uniqueness (FUni). We found 57 and 47 polychaete taxa distributed in 48 and 41 functional entities (i.e., a unique combination of trait values) in continental shelf and estuarine environments, respectively. Results suggest a low level of functional redundancy in both environments. However, FOri was higher in the estuarine environment, whereas FUni was higher in the continental shelf. As expected, estuarine polychaetes have fewer unique combinations of trait values, but these combinations are more original and adequate to the varying conditions imposed by estuarine environmental drivers.

scholarly journals A review of cephalopods (Phylum: Mollusca) of the Canary Current Large Marine Ecosystem (Central-East Atlantic, African coast)

2021 ◽  
pp. 1-25
Author(s):  
Amanda Luna ◽  
Francisco Rocha ◽  
Catalina Perales-Raya
Keyword(s):  
North Atlantic ◽  
Atlantic Coast ◽  
Marine Ecosystem ◽  
Western Sahara ◽  
Guinea Bissau ◽  
Distribution Ranges ◽  
Large Marine Ecosystem ◽  
Sepiola Atlantica ◽  
First Time ◽  
Subsequent Identification

Abstract An extensive review of cephalopod fauna in the Central and North Atlantic coast of Africa was performed based on material collected during 10 research cruises in these waters. In the Canary Current Large Marine Ecosystem (CCLME) area, a total of 378,377 cephalopod specimens was collected from 1247 bottom trawl stations. Of those specimens, 300 were sampled for subsequent identification in the laboratory and found to belong to 65 different species and 23 families. After an exhaustive review of the existing literature on the cephalopods and new data obtained from the surveys, an updated checklist of 138 species was generated for the CCLME area. Our knowledge of the known geographic distribution ranges of several species has been expanded: Muusoctopus januarii has been sighted from Guinea–Bissau waters, passing through Western Sahara, to Morocco waters for the first time; Lepidoteuthis grimaldii and Octopus salutii have been sighted off Morocco waters for the first time; Austrorossia mastigophora, Abralia (Heterabralia) siedleckyi, Abralia (Pygmabralia) redfieldi and Sepiola atlantica have been cited off Western Sahara waters for the first time; Magnoteuthis magna, Abralia (Asteroteuthis) veranyi and Octopoteuthis megaptera have been sighted off Moroccan and Western Sahara waters for the first time; Ancistroteuthis lichtensteinii, Opisthoteuthis grimaldii, Onykia robsoni, Muusoctopus levis and Bathypolypus valdiviae have been cited in the Guinea–Bissau coast for the first time; the northern geographic limit of Bathypolypus ergasticus has been expanded to Morocco, Western Sahara and Mauritania and southward to Guinea–Bissau waters. The presence of Muusoctopus johnsonianus in Senegalese waters has been reported for the first time. A Chtenopteryx sicula specimen was reported in Western Sahara waters. A specimen belonging to the poorly known Cirrothauma murrayi species was found in South Moroccan waters. Amphitretus pelagicus, a probably cosmopolitan species, has been reported in the Western Sahara and Guinea–Bissau waters. Some species that were previously recorded in the area, Sepia angulata, Sepia hieronis, Heteroteuthis dagamensis, Helicocranchia joubini and Tremoctopus gelatus, were removed from the final checklist and considered to be not present in the CCLME area. Cycloteuthis akimushkini was substituted with Cycloteuthis sirventi, its senior synonym, in the final checklist. Similarly, Mastigoteuthis flammea and Mastigoteuthis grimaldii were substituted with Mastigoteuthis agassizii.

scholarly journals On the robustness of an eastern boundary upwelling ecosystem exposed to multiple stressors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ndague Diogoul ◽  
Patrice Brehmer ◽  
Hervé Demarcq ◽  
Salaheddine El Ayoubi ◽  
Abou Thiam ◽  
...  
Keyword(s):  
Multiple Stressors ◽  
Marine Ecosystem ◽  
Trophic Levels ◽  
Sea Surface ◽  
Relative Index ◽  
Upwelling System ◽  
The North ◽  
Latitudinal Shift ◽  
Large Marine Ecosystem ◽  
North And South

AbstractThe resistance of an east border upwelling system was investigated using relative index of marine pelagic biomass estimates under a changing environment spanning 20-years in the strongly exploited southern Canary Current Large marine Ecosystem (sCCLME). We divided the sCCLME in two parts (north and south of Cap Blanc), based on oceanographic regimes. We delineated two size-based groups (“plankton” and “pelagic fish”) corresponding to lower and higher trophic levels, respectively. Over the 20-year period, all spatial remote sensing environmental variables increased significantly, except in the area south of Cap Blanc where sea surface Chlorophyll-a concentrations declined and the upwelling favorable wind was stable. Relative index of marine pelagic abundance was higher in the south area compared to the north area of Cap Blanc. No significant latitudinal shift to the mass center was detected, regardless of trophic level. Relative pelagic abundance did not change, suggesting sCCLME pelagic organisms were able to adapt to changing environmental conditions. Despite strong annual variability and the presence of major stressors (overfishing, climate change), the marine pelagic ressources, mainly fish and plankton remained relatively stable over the two decades, advancing our understanding on the resistance of this east border upwelling system.

scholarly journals Critical In-Water Habitats for Post-Nesting Sea Turtles from the Southern Gulf of Mexico

2021 ◽  
Vol 9 (8) ◽  
pp. 793
Author(s):  
Abigail Uribe-Martínez ◽  
María de los Angeles Liceaga-Correa ◽  
Eduardo Cuevas
Keyword(s):  
Gulf Of Mexico ◽  
Marine Ecosystem ◽  
Satellite Telemetry ◽  
Marine Turtle ◽  
Home Ranges ◽  
The Bahamas ◽  
Turtle Species ◽  
Southern Gulf Of Mexico ◽  
Large Marine Ecosystem ◽  
Physical Features

Marine turtles are globally endangered species that spend more than 95% of their life cycle in in-water habitats. Nevertheless, most of the conservation, recovery and research efforts have targeted the on-land habitats, due to their easier access, where adult females lay their eggs. Targeting the large knowledge gaps on the in-water critical habitats of turtles, particularly in the Large Marine Ecosystem Gulf of Mexico, is crucial for their conservation and recovery in the long term. We used satellite telemetry to track 85 nesting females from their beaches after they nested to identify their feeding and residency habitats, their migratory corridors and to describe the context for those areas. We delimited major migratory corridors in the southern Gulf of Mexico and West Caribbean and described physical features of internesting and feeding home ranges located mainly around the Yucatan Peninsula and Veracruz, Mexico. We also contributed by describing general aggregation and movement patterns for the four marine turtle species in the Atlantic, expanding the knowledge of the studied species. Several tracked individuals emigrated from the Gulf of Mexico to as far as Nicaragua, Honduras, and the Bahamas. This information is critical for identifying gaps in marine protection and for deciphering the spatial connectivity in large ocean basins, and it provides an opportunity to assess potential impacts on marine turtle populations and their habitats.

Wider Caribbean Region—A Pivotal Time to Strengthen Regional Instruments For Biodiversity Conservation

2008 ◽  
Vol 23 (3) ◽  
pp. 499-530 ◽  
Author(s):  
Barbara Lausche
Keyword(s):  
Biodiversity Conservation ◽  
Sustainable Management ◽  
Marine Ecosystem ◽  
Legal Framework ◽  
Caribbean Region ◽  
International Policy ◽  
Global Environment Facility ◽  
Large Marine Ecosystem ◽  
The Caribbean ◽  
Specially Protected Areas

AbstractThe countries of the Wider Caribbean Region (WCR) are linked economically by their transboundary living marine resources. The region is facing a continued decline of these resources. Science is improving our understanding of the human contributions to this decline, but national policies and programmes have not kept pace with this understanding. The Caribbean Regional Seas Programme and its Cartagena Convention and Protocols provide the regional legal framework for protection and sustainable management of the WCR's living marine and coastal resources. This article focuses on the Cartagena Convention's Protocol for biodiversity conservation, the Protocol Concerning Specially Protected Areas and Wildlife (SPAW), arguing that governments and organizations need to significantly increase participation in this regional treaty regime to effectively address transboundary environmental challenges. A new initiative, the Global Environment Facility-supported Caribbean Large Marine Ecosystem project, will help in this effort. International policy supports strengthened regional seas programmes. It is now imperative for all levels and sectors to assist governments in strengthening this important treaty regime for biodiversity conservation in the Wider Caribbean Region.

Sign in / Sign up

Export Citation Format

Share Document