management ceskeho rybnicku

Habitat deterioration despite protection: long-term declines of littoral area of fishponds in Czech nature reserves | bioRxiv
https://www.biorxiv.org/content/10.1101/2021.12.22.473897v1

Fishponds play a key role in current pondscapes in many developed countries. Their littoral areas, supporting multiple ecosystem functions including the maintenance of aquatic and riparian biodiversity, have been adversely affected by the move shift towards more intensive aquaculture and widespread eutrophication in the middle 20th century. To counteract these changes, many fishponds received some protection, but its long-term efficiency has not been studied. Here we focus on the role of conservation status in protecting the area of littoral areas of fishponds in Czechia between the years 1950 and 2019. We found that the conservation status of these fishponds did not prevent habitat deterioration in most of the fishponds, especially during the second half of the 20th century. Moreover, we detected no significant effects of the reserve establishment year, fishpond area and conservation target on the littoral areas. This suggests that the conservation measures are insufficient across fishpond reserve types. We attribute the negative trends to persisting high fish stocks, especially of common carp, and eutrophication resulting from additional feeding, pond manuring, and ongoing nutrient inputs from the pond catchments. Sediment dredging and high grazing pressure by waterfowl in some reserves can further aggravate the situation. We conclude that effective protection of the littoral areas requires a paradigm shift towards less intensive fish stock management, more frequent summer drainage, and effective reduction of all nutrient inputs to increase the water quality. Such measures can help recover the littoral areas and the associated biota.

Premyslela jsem o tom Turowu. tezba je nelegalni, EU parlament zada Komisi, aby zasahla, .. Morawiecki na to suše, ze Turow obsluhuje elektrinou 5 procent Polaku, takze to vypinat nemuzou, nechteji a nebudou. V celem Libereckem kraji neni dost vody.

... prijde mi to jako takova prvni vlastovka toho, jak to bude fungovat v EU v budoucnu. Komise nema jak "zasahnout". EU je dobrovolny svazek na principu prerozdelovani od bohatsich k zaostavajicim a snaha koordinovat zakony. Jak rychle se to ale rozpadne v momente, kdy konkretni zakon pro konkretniho clena prestane byt vyhovujici, s tim, jak se budou zhorsovat zivotni/ekosystemove podminky. Prijde mi, ze to ma dost temnou budoucnost

chainsaws go brrrrrrrrrr

Amazon deforestation: Record high destruction of trees in January - BBC News
https://www.bbc.com/news/science-environment-60333422

Jaromír Baxa
Díky Deník Referendum za příležitost se znovu pohrabat v archivech, protože někdy zpětně vylezou souvislosti, které člověk nevnímal ani jako přímý účastník.
S odstupem se ukazuje, že hejtman Půta s námi všemi sehrál jedno velké divadlo. Happeningy, petice, žaloby kvůli vodě a životnímu prostředí - jenže o nic z toho celou dobu vůbec nešlo.
V článku ukazuju, že hlavní motivací krajských politiků od začátku nebylo nic jiného než snaha získat peníze na vodovody, které se spřáteleným stavebním firmám netransparentně rozdělují ve vodárnách. Malé domů.
Co na tom, že peníze od Polska vystačí na sotva třetinu staveb, které mají být do toho roku 2044 potřeba, nemluvě o tom, že vodovody vodu nezajistí.
Chtělo by se mi dodat něco ve smyslu "po nás potopa", ale spíš by sedělo "po nás poušť"...
V článku vše pečlivě ozdrojováno. Děkuju Gaby Khazalova za pečlivou editorskou pomoc

Turów: Libeckému kraji ani vládě o životní prostředí zřejmě nikdy nešlo
https://denikreferendum.cz/clanek/33657-turow-libeckemu-kraji-ani-vlade-o-zivotni-prostredi-zrejme-nikdy-neslo

People keep talking about climate policy as if they didn't understand what is at stake: their lives, freedoms, democracy, civilization.

TADEAS:

P Dynes
https://twitter.com/PGDynes/status/1491911720352337921?s=19

Sulfur emissions over the oceans have been reduced globally by 80% due to new regs. Shipping accounts for around 10% of total global sulfur emissions but nearly 100% over the oceans. The result is adding huge amounts of energy into the dark oceans as we lose cloud Albedo.

Much more super saturated air over the oceans due to lower energy rejection has the potential to lead to mega rainfall events over land influenced by ocean climates. Ireland and the Uk being good candidates for such events.


L Simons
https://t.co/GEWtxiMgua

Global warming to date is caused by greenhouse gases, but sulfur emissions cool ~-0.5°C, hiding part of warming.

Global shipping was responsible for a large part of anthropogenic emissions of sulfur over oceans.