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The objective of this study is to understand the evolution of the typologies (physicochemical and phytoplankton) in Aglou-Sidi Ifni coastline according to hydrometeorological and climatic hazards. To achieve this objective, monitoring of the phytoplankton community and water physicochemical parameters was conducted at three stations along this coastline and during the winter and fall seasons of two different annual cycles (2014-2016). The first cycle experienced heavy flooding while the second cycle experienced severe drought. This study revealed spatial and temporal variability in phytoplankton composition and the relative abundance of its major groups. Temporal variability may be due to changes in the physicochemical characteristics of water masses as a function of continental inputs and wave intensity, which differ from cycle to cycle and season to another. Whereas the spatial variability would be due to the modification of these physicochemical characteristics from one station to another under the influence of the morphology of the coast in this zone, which curves westwards and carries Cape Aglou at its northern end, thus making the station of Sidi Ifni more exposed to currents than the other two stations which are somewhat sheltered.

Overexploitation and unsustainable fisheries activities will have an impact on environmental quality degradation. In the 4.0 era, technology can assist in monitoring and managing sustainable fisheries resources. Research on sustainable fisheries management activities guided by the marine ecological carrying capacity (MECC) evaluation index has been carried out. The purpose of this study was to determine changes in fishery activity to MECC as an evaluation material for sustainable development in the fisheries sector in the form of a website. This can provide convenience and effectiveness and can be used as a basis by stakeholders in monitoring and making policies in the sustainable development of the fisheries sector. MECC is composed of two components, namely carrying object (OI) and carrier resilience (RI). OI is obtained from changes in the value of changes in human activity (RI) and socio-economic development (SI). Fishery activities are a component of RI in the Nunukan Regency, Indonesia. The HI value decreased during 2015 - 2019 and affected the decline in the MECC index as a whole. This decrease was caused by the increase in fish catches, the number of fishing households, and boat activity in the waters of the Nunukan Regency. Based on the evaluation of the decline in the value of HI, it can be used as an evaluation material in developing integrated and sustainable development in the fisheries sector by mitigating bycatch by regulating fishing gear and methodologies, as well as establishing protected area management and fishing. To make this happen, it is necessary to build partnerships between public authorities, business, civil society, academia, and the financial sector within the framework of the Penta-helix model.

This study aimed to examine the factors and the influence of group dynamics and the independence of fishing group members in catch fisheries agribusiness activities. This research was carried out using a survey method in the Rukun Nelayan Blimbing in Paciran District, Lamongan Regency, East Java Province, Indonesia from February to March 2019. The result showed the group dynamics and independence of fishermen in catch fisheries was high, but group dynamics did not influence the independence of fishermen in catching fisheries agribusiness. The factors that influence group dynamics were structuring, coaching and development, atmosphere, effectiveness. The factors affected the independence of the group were the addition of production facilities, prices, market, and fishermen. Those factors are needed to attain the good management in maximum sustainable yield (MSY).

Fish behaviour investigations under controlled laboratory conditions but nature like environment were conducted to clarify the efficiency of inclined and horizontal screen planes for fish protection and fish downstream passage at hydropower plants concerning different potamodromous species and various sizes. The dependency on the underlying geometric and hydraulic parameters was investigated and comprehensive models were deduced to describe these relations. Adequate geometric and hydraulic design could achieve high levels of fish protection and downstream passage efficiency, even for small fish, weak swimmers and riverbed/bottom oriented species. The results imply good transferability and accordance with field observations at large scale facilities and can provide valuable information for facility design.

The modeling of the global biogeochemical cycle of carbon and nitrogen against the background of global warming and other anthropogenic impacts on the biosphere is carried out. It is shown that in the process of absorption of anthropogenic CO2 emissions into the atmosphere during global warming, the nitrogen cycle is significantly intensified and contributes to more efficient absorption of emissions. The greater the dependence of productivity on nitrogen nutrition, the bigger the degree of carbon absorption and, thus, the larger the degree of compensation of the investigated effects. Generally, soil absorbs a significant share of carbon dioxide emissions and therefore holds much significance in absorption. The role of litter is relevant in absorbing emissions. Having 10 times less mass than humus, it absorbs more carbon than humus.

Mercury, despite of its many uses in industry, is also highly toxic. It is highly neurotoxic, and because of the ability of mercury to penetrate placental barrier, in some countries ban on predatory fish consumption (the main route of mercury into human organism) by pregnant women was introduced. There are very little publications describing the consequences of weather anomalies on contaminants cycles. No research was published concerning the reemission of Hg due to climate change in the Southern Baltic Sea. The study area was situated in the coastal zone of the Gulf of Gdansk - the Southern Baltic. Samples of different species of macrophytobenthos were collected once a month during 2006-2012. Samples of Potamogeton pectinatus, sediments and pore waters were collected once a month from February 2011 to January 2012. The climate changes in the moderate latitudes: extension of the fall season, has contributed to stabilization of high concentrations of mercury in pore waters. Lack of ice cover in the coastal zone and simultaneous occurrence of storms had an impact on supply of the organic matter to the sediments and the increased concentration of Hg. More intense burning of fossil fuels in this season favored the increased metal concentration in the atmosphere and consequently an increase of the atmospheric deposition of metals to the sediments. This led to a fourfold increase of the mercury concentration in sediments as compared to fall season.

The rapid development of industrial sectors, tourism, transportation, and ports, along with human settlement in coastal areas, leading to the deterioration of its environmental qualities. Hence, it requires a plan that able to balance between the development and the environmental conservation of the coastal area to achieve its sustainability, which is to consider the coastal carrying capacity. The purpose of this study is to create an alternative for spatial planning based on the carrying capacity for the space utilization for the sustainability of the coastal area. This study conducted using geographic information system (GIS) based on the land use data in 2008, 2012, and 2017 in the coastal area at Serang Regency, Indonesia. Based on the data, the significant changes shown in the industrial sector, seen from 17% in 2008 to 40% in 2017. The rapid development arises some problems that lead to environmental stress, such as the increase of industrial waste, a reclamation that potentially changes the land structure, as well as the seawater contamination in groundwater. Therefore, best alternative planning is to promote the development of natural tourism by utilizing the existing potential and at the same time conserving the environment quality.

In the Canary Current System (CCS), coherent structures and concurrent movements of surface waters such as meanders, filaments and eddies strongly control the ocean bio-optical proprieties response to the coastal upwelling process. One of the outstanding problems is to understand the mechanisms of the bio-optical proprieties transfer and the connection mechanism between the coastal band and the ocean interior. We use a combination of satellite data and derived mesoscale indicators to provide a comprehensive view of the relationship between the physical and bio-optical proprieties off Moroccan upwelling region (part of the CCS) in terms of wind impulse responsible of sea turbulence, sea surface temperature (SST) response of the wind stress and ocean color proprieties considered as bio-optical ocean proxy response. To optimize the predicted ranges of these parameters, Generalized Additive Model (GAM) was applied. We conclude that the energetic mesoscales structures as seen from the satellite climatology observations can provide insight into dominant transport pathways controlling the bio-optical exchange from the coastal area to the ocean interior structured as an oceanic corridor connecting the Moroccan area to the Canary archipelagos.