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145 results for “marine protected areas”
Fig. 4 in Fish assemblages along the coasts of Tunisia: a baseline study to assess the effectiveness of future Marine Protected Areas
Fig. 4: Mean biomass (±standard error) per trophic category at the sampling locations (KU: Kuriat Islands, CNCS: Cap Negro-Cap Serrat, TA: Tabarka) and per protection level (UP: Unprotected, FP: Future Protected).
Fig. 2 in Fish assemblages along the coasts of Tunisia: a baseline study to assess the effectiveness of future Marine Protected Areas
Fig. 2: Mean species richness (a), mean density (b) and mean biomass (c) (±standard error) per location (KU: Kuriat islands, CNCS: Cap Negro-Cap Serrat, TA: Tabarka) and protection level (UP: Unprotected, FP: Future Protected).
Figure 1 in Coral cover percentage and health condition in Tioman Island marine protected area, Pahang, Malaysia
Figure 1. The location of the study sites [Tiong Point (2°49'49.12"N; 104° 9'45.10"E), Tekek (2°49'23.97"N; 104° 9'34.77"E) and Renggis Island (2°48'37.52"N, 104° 8'9.60"E)] in Tioman Island, Pahang, Malaysia.
Fig. 6 in Seasonal response of benthic foraminifera to anthropogenic pressure in two stations of the Gulf of Trieste (northern Adriatic Sea, Italy): the marine protected area of Miramare versus the Servola water sewage outfall
Fig. 6: Rank-frequency diagram for the Ser(a) and Res(b) stations using the cumulative abundance (as relative frequency) for y-axe and the decreasing rank order for x-axe of each species for each sample. Both axes are on logarithmic scale.
Fig. 4 in Seasonal response of benthic foraminifera to anthropogenic pressure in two stations of the Gulf of Trieste (northern Adriatic Sea, Italy): the marine protected area of Miramare versus the Servola water sewage outfall
Fig. 4: Foraminiferal data for Ser and Res stations using the complete living assemblage of the 0-2 cm level: a) Foraminiferal density (FD) as the number of specimens normalised to 50 cc of sediments and species richness; b) Dominance index; c) bias corrected Shannon (H' bc) and the exponential function Exp(H' ) indexes.
Fig. 3 in Seasonal response of benthic foraminifera to anthropogenic pressure in two stations of the Gulf of Trieste (northern Adriatic Sea, Italy): the marine protected area of Miramare versus the Servola water sewage outfall
Fig. 3: Potentially toxic elements (PTE) concentration in the Ser (a) and Res (b) stations calculated for the 0-1 cm level. PTEs are expressed in micrograms per gram (µg/g).
Fig. 1 in Seasonal response of benthic foraminifera to anthropogenic pressure in two stations of the Gulf of Trieste (northern Adriatic Sea, Italy): the marine protected area of Miramare versus the Servola water sewage outfall
Fig. 1: Study area and location of the Ser (Servola) and Res (Riserva Naturale Marina di Miramare) stations. The Servola pipeline is evidenced in the enlarged square.
Fig. 2 in Seasonal response of benthic foraminifera to anthropogenic pressure in two stations of the Gulf of Trieste (northern Adriatic Sea, Italy): the marine protected area of Miramare versus the Servola water sewage outfall
Fig. 2: Vertical profiles of temperature, salinity, pH, oxygen saturation and chlorophyll a at Ser and Res stations during the seasonal sampling.
Fig. 5 in Assessment of coastal fish assemblages before the establishment of a new marine protected area in the central Mediterranean: its role in formulating a zoning proposal Abstract
Fig. 5: Size class frequency distributions of species of recreational value (i.e. attractive for SCUBA diving) recorded along the transects at each sector and depth range.
Fig. 4 in Assessment of coastal fish assemblages before the establishment of a new marine protected area in the central Mediterranean: its role in formulating a zoning proposal Abstract
Fig. 4: Total density (mean number of individuals/125 m2 ± S.E.) of fishes recorded along the transects at each (a) sector and (b) depth range.
Fig. 2 in Assessment of coastal fish assemblages before the establishment of a new marine protected area in the central Mediterranean: its role in formulating a zoning proposal Abstract
Fig. 2: Scatter plot of the canonical analysis of principal coordinates (CAP) based on the Bray–Curtis dissimilarities on the effects of (a) habitat type (RAR=rocky-algal reef; POM=Posidonia oceanica meadow; SOB=soft bottom) and (b) depth range.
Fig. 3 in Benthic hydrozoan assemblages as potential indicators of environmental health in a mediterranean marine protected area Abstract
Fig. 3: Two-dimensional nMDS representation of the similarity (Bray-Curtis) of hydrozoan assemblages among samples in the summer campaign. Samples displayed according to stations (numbers) and sampling depth (a), anthropogenic impact (b) and substrate type (c).
Fig. 1 in Population size and survivorship for juvenile lemon sharks (Negaprion brevirostris) on their nursery grounds at a marine protected area in Brazil
Fig. 1. Map of the Atol das Rocas Biological Reserve off Brazil, showing the sampling sites: BL = Baía da Lama (total capture (tc) = 272), 1 = Farol Pool (tc = 29), 2 = Cemitério Pool (tc = 25), 3 = Podes Crer Pool (tc = 3), 4 = Barretinha (tc = 6), 5 = Lagoon, North of Cemitério Island (tc = 5), 6 = Lagoon, South of Farol Island (tc = 7). CI = Cemitério Island, FI = Farol Island. Broken lines represent the 5 and 10 m isobaths.
Barcode database of scleractinian corals (Cnidaria, Scleractinia) in two tropical marine protected areas (Perhentian and Redang Islands Marine Parks, Malaysia)
<p class="MsoNormal"><span>Coral reefs are particularly vulnerable to climate change as an elevation of sea surface temperatures would cause most coral species to bleach rapidly by expulsing their algal symbionts Symbiodiniaceae. Loss of these symbionts in coral species during stress-related "bleaching" events can lead to mass mortality of these corals and the collapse of the associated reef ecosystem. This makes the inventory of the diversity of coral species and their symbionts, in particular, genetic diversity, critical to the understanding of the assessment of coral reef resilience and ecosystem sustainability. The use of DNA barcoding has been proven useful in biodiversity assessments and monitoring schemes of marine ecosystems, particularly the highly diverse coral reef ecosystems. However, this information is lacking in Malaysia. Therefore, a comprehensive reference database of genetic sequences that represent the present coral reef biodiversity in the country would be needed. Here, we barcoded the scleractinian coral samples, the reef-building corals, collected from the two marine protected areas of Malaysia, Perhentian and Redang Islands Marine Parks, using the cytochrome c oxidase I (COI) marker. The data released from this project represent the first comprehensive reference database of the scleractinian coral diversity on the northeastern coasts of Malaysian coral reefs. A total of 62 nucleotide COI sequences of scleractinian corals collected from the two marine parks were obtained. Of these, a total of 34 taxa belonging to nine families were included in the dataset. This dataset added information on the occurrence and distribution of scleractinian coral species from the two tropical marine protected areas in the South China Sea (Western Pacific).</span></p>
Barcode database of scleractinian corals (Cnidaria, Scleractinia) in two tropical marine protected areas (Perhentian and Redang Islands Marine Parks, Malaysia)
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Code and data for: Habitat and local factors influence fish biomass recovery in marine protected areas
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Data from: Shark movement strategies influence poaching risk and can guide enforcement decisions in a large, remote Marine Protected Area
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Data from: Extending full protection inside existing marine protected areas or reducing fishing effort outside can reconcile conservation and fisheries goals
<p>1. Most fish stocks worldwide are fished at maximum sustainable yield (MSY) or overfished, as many fisheries management strategies have failed to achieve sustainable fishing. Identifying effective fisheries management strategies has now become urgent.</p> <p>2. Here, we developed a spatially-explicit metapopulation model accounting for population connectivity in the north-western Mediterranean Sea, and parameterized it for three ecologically and economically important coastal fish species: the white seabream <i>Diplodus sargus</i>, the two-banded seabream <i>Diplodus vulgaris</i> and the dusky grouper <i>Epinephelus marginatus</i>.</p> <p>3. We used the model to assess how stock biomass and catches respond to changes in fishing mortality rate (<i>F</i>) and in the size of fully protected areas within the existing system of multiple-use marine protected areas (MPAs). For each species, we estimated MSY and the corresponding values of stock biomass (<i>B</i><sub>MSY</sub>) and fishing mortality rate (<i>F</i><sub>MSY</sub>), providing crucial reference points for the assessment of fisheries management.</p> <p>4. <i>D. sargus</i> is currently in low overfishing, while <i>D. vulgaris</i> and <i>E. marginatus</i> are in high overfishing. Stock recovery to <i>B</i><sub>MSY</sub> for the last two species requires a reduction of current <i>F</i> around 50%. This would guarantee an increase in both stock biomass (around 50 and 75% for <i>D. vulgaris</i> and <i>E. marginatus</i>, respectively) and catch (around 15 and 30%) after a transient time of ~15–30 years. Alternatively, doubling the size of fully protected areas over fishable areas within the existing network of MPAs would lead to positive conservation effects for all three species without substantially affecting the overall productivity of the fishery and the total economic value of the catch.</p> <p>5. <i>Synthesis and applications.</i> We provide the first assessment of stock status for three coastal species in the north-western Mediterranean and evaluate the ecological and fisheries outcomes of different management strategies. Extending full protection inside existing multiple-use marine protected areas or reducing fishing effort outside can deliver both conservation and fisheries benefits.</p>
Data from: An approach to incorporating inferred connectivity of adult movement into marine protected area design with limited data
Marine protected areas (MPAs) are important conservation tools that can support the resilience of marine ecosystems. Many countries, including Canada, have committed to protecting at least 10% of their marine areas under the Convention on Biological Diversity's Aichi Target 11, which includes connectivity as a key aspect. Connectivity, the movement of individuals among habitats, can enhance population stability and resilience within and among MPAs. However, little is known about regional spatial patterns of marine ecological connectivity, particularly adult movement. We developed a method to assess and design MPA networks that maximize inferred connectivity within habitat types for adult movement when ecological data are limited. We used the Northern Shelf Bioregion in British Columbia, Canada, to explore two different approaches: 1) evaluating sites important for inferred regional connectivity (termed hotspots); and 2) assessing MPA network configurations based on their overlap with connectivity hotspots and interconnectedness between MPAs. To assess inferred connectivity via adult movement, we used two different threshold distances (15 km and 50 km) to capture moderate home ranges, which are most appropriate to consider in MPA design. We applied graph theory to assess inferred connectivity within sixteen habitat and depth categories (proxies for distinct ecological communities), and used novel multiplex network methodologies to perform an aggregated assessment of inferred connectivity. We evaluated inferred regional connectivity hotspots based on betweenness and eigenvector centrality metrics, finding that the existing MPA network overlapped a moderate proportion of these regional hotspots, and identified key areas to be considered as candidate MPAs. Network density among existing MPAs was low within the individual habitat networks, as well as the multiplex. This work informs an ongoing MPA planning process, and approaches for incorporating connectivity into MPA design when data are limited, with lessons for other contexts.
Opportunities and challenges in achieving co-management in marine protected areas in East Africa: a comparative case study
<p>As marine ecosystems decline globally, scientists recommend increasing the coverage of marine protected areas (MPAs), but many are not effectively managed to deliver benefits. Community integration into MPA decision-making can increase management effectiveness by supporting behaviour change, but this poses implementation challenges. We examine differences in adaptive capacity, community engagement, and perceived MPA benefits using interviews and focal group meetings with two fishing communities from MPAs with different management strategies and geographic settings: a centrally managed MPA in Kenya and a co-managed MPA in Tanzania. We hypothesized that perceptions of MPA benefits and MPA support would be higher among fishers and fish vendors in the more collaboratively designed system in Tanzania, and supported by greater adaptive capacity. Indeed, far fewer Kenyan participants (37%) felt they benefited from the MPA compared to Tanzanian participants (95%). However, agency and trust were largely similar and challenges existed in both systems that reduced collaborative action including low interaction/communication between staff and community, internal leadership challenges, and social conflict. We identified pathways towards improved co-management that transcend systems: institutional prioritization of community integration, investment in community leadership, mapping social networks during MPA establishment, and adequate staffing and operational budgets.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.