by Asep Bulkini Indonesia is one of largest shrimp producers in Southeast Asia. Initially, in the 1980s, black tiger prawn (Penaeus monodon) was the most widely cultivated species and most farmers favoured the use of large rectangular ponds, with an average area of 2,500 – 5,000 m2. When most changed to vannamei production in the early 2000s, due to whitespot (WSSV) disease outbreaks that hit monodon horribly, the type of shrimp pond changed little, other than the addition of HDPE linings or concrete to the ponds.
However, in the last decade the shrimp farming model has begun to vary, including the construction of some smaller ponds, of 1,000 m2 or less. The popularity of these mini-ponds was a response from those who want to be involved in the sector but have limited capital and land. Originally, these small ponds adopted the traditional rectangular shape, based on a very simple construction using bamboo as the frame and tarpaulin as its lining. This type of p
MY EDMONDS NEWS Posted: April 9, 2021 19
National Library Week is April 4 -10 and there are certainly reasons to celebrate it. The Edmonds and Lynnwood Libraries are now offering limited in-building services on top of the current contactless services. Recently, I stopped by to pick up a hold at the Edmonds Library and was offered contactless pick-up or the option to pick-up and checkout on my own, I chose to head in on my own. Walking into the library for the first time in over a year was exciting though a little different as not all of the stacks are available for browsing and at that time, I was the only non- employee to be found. I picked up my hold, which was flanked by the same names I usually see, and walked over to the kids section, picking up a Minecraft joke book on the way to the graphic novels. It was a big hit as it makes my younger son laugh and then rest of us groan, a true win-win for him.
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The native oyster beds are gone. The vast saltmarshes that soaked up carbon and buffered the coast from stormy seas have been reclaimed for farms and towns. The species-rich maerl and horse mussel beds have vanished and now, in new research, we’ve uncovered the decline of another jewel in the UK’s marine environment: seagrass meadows.
Seagrass is a flowering plant that forms rippling underwater meadows in shallow coastal seas. Our study is the first to analyse all published data on this habitat in the UK, gathered from newspapers, diaries and other sources throughout history. We found that at least 44% of the UK’s seagrass has been lost since 1936 – most of it since the 1980s. But when we modelled which coastal areas were likely to have been suitable for seagrass, we found that as much as 92% of it might have disappeared.
New high-tech smart buoys are being deployed along the Western Australian coast to provide real-time monitoring of a developing marine heatwave due to La.