How many species identified that showed a distinct distribution at specific fronts in the southern ocean?5 answersA total of 32 endemic Southern Ocean species and 181 widespread species have been identified in the Southern Ocean, showing distinct distribution patterns at specific fronts. Among the widespread species, 81 were recurrently found in the Southern Ocean waters, while 70 were considered as "stray" species, only observed once. Additionally, the community composition of zooplankton in the Indian sector of the Southern Ocean during summer 2013 revealed a dominance of copepods, with specific indicator species like Calocalanus spp., Neocalanus tonsus, and Calanus propinquus at different fronts, indicating distinct distributions. These findings highlight the diverse and specialized distribution of species at specific fronts in the Southern Ocean, emphasizing the importance of fronts in structuring marine ecosystems.
What are conservation measures taken is South Africa to secure marine biodiversity for future purposes?5 answersSouth Africa has implemented various conservation measures to safeguard marine biodiversity. The country established a comprehensive Marine Protected Area (MPA) network, covering 5.4% of the ocean area and representing 131 marine ecosystem types, demonstrating a commitment to biodiversity and fisheries management goals. However, challenges exist, such as the vulnerability of sharks to commercial fishing activities near MPAs, highlighting the need for optimized spatial protection strategies. Despite the success of MPAs in ecological benefits, there are concerns about coastal community exclusion from decision-making processes, emphasizing the importance of community involvement in marine habitat protection and management for enhanced conservation outcomes. Additionally, South Africa's Acoustic Tracking Array Platform has proven effective in understanding aquatic animal movements, aiding in marine spatial planning efforts to protect threatened and endemic species.
Are there seagrasses in todos os santos bay?5 answersYes, there are seagrasses in Todos os Santos Bay. Seagrass species Halodule wrightii were found in the bay. The concentrations of metals in seagrass samples were analyzed, indicating the presence of elements such as As, Ba, Cd, Cr, Cu, Ni, Pb, V, and Zn. The seagrass samples were collected at different stations to evaluate the distribution of element concentrations in the area. The bay has been impacted by industrial activities, including chemical and petrochemical plants, an oil refinery, and harbor activities. The presence of seagrass species in the bay suggests the importance of these plants in the marine ecosystem of Todos os Santos Bay.
Which fish species are found in Todos os Santos Bay?4 answersThe fish species found in Todos os Santos Bay include Ucides cordatus, Scomber japonicus, Diapterus rhombeus and Ogcocephalus vespertilio.
What is the important of taxonomy for zooplankton at southern ocean?5 answersTaxonomy is important for zooplankton in the Southern Ocean because it helps in understanding the composition and distribution of different zooplankton species. By studying the taxonomy of zooplankton, researchers can identify key species such as euphausiids, copepods, salps, and pteropods, which play important roles in maintaining food webs and ecosystem structure. Taxonomy also helps in assessing the responses of zooplankton to environmental changes and drivers, such as changes in temperature, primary production, and ocean fronts. It allows for the identification of indicator species in different frontal zones, which can provide insights into the physical and biological characteristics of the Southern Ocean. Additionally, taxonomy is crucial for estimating carbon recycling by zooplankton and understanding its impact on global carbon dioxide levels. Furthermore, studying the fatty acid composition of zooplankton can provide insights into their trophic relationships and food web dynamics. Overall, taxonomy plays a vital role in understanding the ecology and functioning of zooplankton communities in the Southern Ocean.
What is the scientific evidence for the accuracy of natal charts?4 answersThe scientific evidence for the accuracy of natal charts is limited and varies depending on the specific chart being used. Studies have highlighted major methodological limitations in the creation of neonatal anthropometric charts, making international and regional comparisons difficult. However, a study evaluating the accuracy of data elements entered into the Ontario birth Registry found good agreement between the data from patient records and the data entered in the Registry. Another study assessed the accuracy and clarity of prescribing on neonatal inpatient prescription charts and found failings in adherence to prescribing standards. Additionally, a study on fetal growth charts found that the choice of chart used in antenatal screening for fetal growth restriction can impact the proportion of fetuses diagnosed as small for gestational age. Overall, while there is some evidence supporting the accuracy of natal charts, further research is needed to improve methodological quality and ensure consistency in their use.