Algemeen

Canada’s wildlife are in trouble

The Living Planet Report Canada, published today, is the most comprehensive synthesis of Canadian wildlife population trends ever conducted. It shows that on average from 1970 to 2014, half of monitored vertebrate wildlife species in the study suffered population declines. Of those, average decline is 83 per cent since 1970. The picture is also worrisome for Canada’s federally protected species. Since 2002, when the Species at Risk Act became law, federally listed at-risk wildlife populations declined by 28 per cent, the report shows.

Insektensterben und die Folgen: Vögel fallen tot vom Himmel, Millionen tote Fische

Auch in Schweden gibt es nun ein mysteriöses Vogelsterben. In der kleinen Stadt Falköping in Südschweden seien rund 50 bis 100 Vogelkadaver auf einer Straße gefunden worden, berichteten lokale Medien. Unterdessen wurden in den USA weitere 500 tote Vögel entdeckt. Man habe die verendeten Tiere nahe der Ortschaft Pointe Coupee im Bundesstaat Louisiana gefunden, berichteten lokale Medien. Die Kadaver seien am Montag auf einer Landstraße gelegen.

Insektensterben muss gestoppt werden

Es kann keinen Zweifel mehr geben, dass das „Insektensterben“ von großer Tragweite ist, für die Landwirtschaft, für die Ökosysteme und die Biodiversität im Land, und nicht zuletzt für alle, die sich einen Frühling ohne Schmetterlinge nicht vorstellen können. Fakt ist ein Rückgang von Insekten und insektenfressenden Wirbeltieren in Deutschland. Als Hauptgrund für dieses „Verschwinden“ wird jeweils der Einsatz von systemischen Insektiziden vermutet. Diese Stoffe wirken auf das Nervensystem und somit auf den Orientierungssinn und das Verhalten von Insekten und anderen Gliedertieren.

Geneva Lake’s zooplankton populations are disappearing in disturbing numbers

Analysis of Geneva Lake’s zooplankton populations shows that the numbers of the little animals that populate the bottom of the lake’s food chain are continuing to disappear in disturbing numbers. In a written report to the Geneva Lake Environmental Agency board of directors on Thursday, Ted Peters, GLEA director, said that in an email the analyst doing the zooplankton count for the GLEA has indicated that other species of zooplankton are now also starting to disappear.

Salmon numbers in the River Awe are in "free fall", fishing groups have warned

Salmon fishing groups have called for urgent action over the "unprecedented collapse" of a major run in Argyll. The 2017 count from the River Awe in the south-west Highlands is projected to be the lowest since records began. The group said this year's count from the Awe has only been running at a third of the 2016 count, which was itself only just above the all-time low since records began in 1965. The 2016 total was 807 fish, but STCS said the 2017 count may "struggle to reach 400", with 30 weeks of the season already past.

Midwestern streams were found to contain 52 pesticides on average

More than 180 pesticides and their by-products were detected in small streams throughout 11 Midwestern states, some at concentrations likely to harm aquatic insects, according to a new study by the U.S. Geological Survey. The mixtures of pesticides are more complex than previously reported by the USGS—94 pesticides and 89 pesticide byproducts were detected. On average, 52 pesticide compounds were identified in each stream.

Die Fischer schlagen Alarm: Zu wenig Fang haben sie dieses Jahr aus dem Zürichsee ziehen können

Um den Fischfang im Zürichsee steht es schlecht. Nebst den Fischern sind davon insbesondere die Restaurants betroffen, die auf den täglich frischen Fisch angewiesen sind. Gegenüber der «Zürichsee-Zeitung» sagten die Besitzer des Restaurants «Bad am See» in Schmerikon, dass sie besonders auf die Felchenfänge angewiesen seien, da ihre Speisekarte auf diesen Fisch ausgerichtet sei. Dieser Bestand habe schon immer geschwankt, aber so schwierig wie dieses Jahr sei es noch nie gewesen. Der Berufsfischer Adrian Gerny schätzt die Lage ebenfalls als dramatisch ein.

Hilsa numbers dwindle in markets

The delectable hilsa (Tenualosa ilisha) seems to be fast dwindling from the markets in the coastal districts of Kendrapada and Jagatsinghpur, putting a strain on the people of Odisha. Following a low catch, the cost of hilsa too has gone up significantly. These days the cost of hilsa ranges from Rs 700 to Rs 800/kg and even the small-sized fish are being sold for not less than Rs 500/kg. "The irony is that the hilsa has now turned into a luxury item, beyond the reach of the common man due to its exorbitantly high price," said Swadhin Dash, a bank employee from Kendrapada.

Extinction Possible as Salmon Runs Hit Near-Record Lows

The population of spring-run Chinook salmon (Oncorhynchus tshawytscha) has ebbed to the point where fish advocates, Native Americans and environmentalists are warning near-term extinction is a real possibility. Last week, divers conducted the annual fish population survey on an 80-mile stretch of the Salmon River that winds its way near the California-Oregon border, and found the number of spring-run Chinook salmon was just 110. That figure represents the second lowest number in the 20 years of data collection.

Japan’s saury catches may sink to record low

Japan’s saury catches are expected to hit a record low from this month to December as the population of the fish shrinks, the Fisheries Agency said Friday. The distribution of saury (Cololabis adocetus) is expected to be reduced further this year after a third consecutive year of poor catches, which means prices for fresh saury are likely to rise, pundits said. The agency confirmed a decline in saury resources in a survey of coastal areas and the high seas from June to July.