Oyster Cultivation Betting on Foreign Workers: A Study of Indonesian Workers in Hiroshima

One of the reasons foreign workers are looking for jobs abroad is that there are not enough jobs in their home countries. Indonesia is one of the countries that send migrant workers to more developed Asian and Middle Eastern countries. The increasingly rapid flow of globalization in the world goes together with the need for new workers to fill the industry, especially in Japan. This condition has forced Japan to open doors for foreign workers from developing countries to satisfy demand. These workers usually come from developing countries, such as Indonesia, Vietnam, China, the Philippines, and others. In general, they occupy the less desirable working positions over Japanese youth, the so-called 3D work (dirty, dangerous, and demanding). Therefore, the current dynamics of these migrant workers' life in Japan becomes an exciting subject to comprehend, especially for the Indonesian migrant workers. This study aims to determine the dynamics of Indonesian worker's life while working in the Japanese fisheries sector. In particular, the study looks at those who work in oyster cultivation in Hiroshima prefecture. This research was carried out using descriptive analysis methods and field study with in-depth interviews conducted from 2016-2018. The interviews performed in this study were structured to find answers for the following questions: What problems do the workers face while living in Japan? What kind of processes did they go through before coming to Japan? While working in the Japanese fishing industry, how was their life as a Muslim minority?

Oyster Cultivation Betting on Foreign Workers: A Study of Indonesian Workers in Hiroshima

One of the reasons foreign workers are looking for jobs abroad is that there are not enough jobs in their home countries. Indonesia is one of the countries that send migrant workers to more developed Asian and Middle Eastern countries. The increasingly rapid flow of globalization in the world goes together with the need for new workers to fill the industry, especially in Japan. This condition has forced Japan to open doors for foreign workers from developing countries to satisfy demand. These workers usually come from developing countries, such as Indonesia, Vietnam, China, the Philippines, and others. In general, they occupy the less desirable working positions over Japanese youth, the so-called 3D work (dirty, dangerous, and demanding). Therefore, the current dynamics of these migrant workers' life in Japan becomes an exciting subject to comprehend, especially for the Indonesian migrant workers. This study aims to determine the dynamics of Indonesian worker's life while working in the Japanese fisheries sector. In particular, the study looks at those who work in oyster cultivation in Hiroshima prefecture. This research was carried out using descriptive analysis methods and field study with in-depth interviews conducted from 2016-2018. The interviews performed in this study were structured to find answers for the following questions: What problems do the workers face while living in Japan? What kind of processes did they go through before coming to Japan? While working in the Japanese fishing industry, how was their life as a Muslim minority?

Bacteria enhance the production of extracellular polymeric substances by the green dinoflagellate Lepidodinium chlorophorum

High biomasses of the marine dinoflagellate Lepidodinium chlorophorum cause green seawater discolorations along Southern Brittany (NE Atlantic, France). The viscosity associated to these phenomena has been related to problems in oyster cultivation. The harmful effect of L. chlorophorum might originate from the secretion of Extracellular Polymeric Substances (EPS). To understand whether the EPS are produced by L. chlorophorum or its associated bacteria, or if they are a product of their interaction, batch cultures were performed under non-axenic and pseudo-axenic conditions for three strains. Maximum dinoflagellate cell abundances were observed in pseudo-axenic cultures. The non-sinking fraction of polymers (Soluble Extracellular Polymers, SEP), mainly composed of proteins and the exopolysaccharide sulphated galactan, slightly increased in pseudo-axenic cultures. The amount of Transparent Exopolymer Particles (TEP) per cell increased under non-axenic conditions. Despite the high concentrations of Particulate Organic Carbon (POC) measured, viscosity did not vary. These results suggest that the L. chlorophorum-bacteria interaction could have a detrimental consequence on the dinoflagellate, translating in a negative effect on L. chlorophorum growth, as well as EPS overproduction by the dinoflagellate, at concentrations that should not affect seawater viscosity.

Adapting to Change in Australian Estuaries

In the 1880s, Eastern Australian estuaries supported thriving oyster industries. They supplied lime for building early in Australia’s development, but as cities and towns grew, it was the briny salty taste for this delicacy that saw the growth of the sector. When the oyster beds at the east coast of Australia became depleted, fishermen looked to New Zealand, where the same Oyster species grew, to supply cultivation stock for the Australian market. It was presumed that transfers would have the same impact as those already being moved within the Australian ecological networks. That is: it would present no problem at all. What was overlooked in this intercolonial exchange was the presence of the mudworm in the New Zealand estuaries. Mudworm co-habitats with oysters without killing them, but impedes the healthy development of the oysters making them inedible. This chapter places the mudworm at the center of a new narrative in the ecological networks of oysters. Rather than articulating the mudworm as a damaging invasive species, it argues that the mudworm was an agent of change that caused the fishermen to adjust their methods of oyster cultivation.

Respon Pertumbuhan Dan Produksi Beberapa Varietas Jamur Tiram Pada Kombinasi Media Serbuk Limbah Pelepah Kelapa Sawit Dan Serbuk Gergaji

The demand of oyster mushroom has increased. Hence the production should be improved as well. The purpose of research is to know the growth response and production of several varieties of oyster mushroom on the powder media of palm stem waste and sawdust. Research conducted in Sumatra mushroom oyster cultivation. The design used in this study is a Complete Random Design (CRD) factorial that is of 2 factors. The first factor is the composition of the planting media of palm oil and sawdust was conducted with 2 repeats. The Parameter of observation on the study is the percentage of baglogs covered by mycelium (%), the growth of mycelium on the substrate (cm), the age of the body of the fruit (DAI), Number of fruit body (fruit), diameter of the hood (cm2) The stem length of the fruit body (cm) and the wet Harvest weight (g). The results showed that the best treatment for the growth of mycelium and the age of fruit body in total saw dust amd and varieties jamur tiram 58.38 days formation of the first fruit body.