In this issue…

 Plenty of records from alien plants. A fungus is helping to control the invasive weed (Parthenium hysterophorus) in Pakistan (read also our press release). Farmers need advice on the spread of the emerging weed Eriochloa villosa. Fifty years of spread history of the yellow oxeye (Telekia speciosa) in a UNESCO World Heritage site, Czech Republic. And oases are at risk due to the spread of the invasive candle bush (Senna alata) in Mexico.

 Tiny invaders! The invasive ants (Linepithema humile) were found in Tuscany, Italy and ground beetles (Mochtherus tetraspilotus) in South America.

 Crab news. New records of the blue crab (Callinectes sapidus) and the mud crab (Dyspanopeus sayi) in Sardinia (W Mediterranean, Italy). The America lobster (Homarus americanus) in Croatia Waters. The Australian redclaw crayfish (Cherax quadricarinatus) in US. The spiny-cheek crayfish (Faxonius limosus) in Estonia.

 Fish news. A citizen science project helped to spot aquarium-released Atlantic spadefish (Chaetodipterus faber). Red drum (Sciaenops ocellatus) introduction in a mangrove habitat in China. Black Acara (Cichlasoma bimaculatum) is now established in Florida. Naturalization of the jaguar cichlid (Parachromis managuensis) in Queensland, Australia.

 First records of Mya (Mya japonica) in the Southern hemisphere, an Indo-Pacific mollusk (Diodora funiculate) in Libya, and the invasive New Zealand mud snail (Potamopyrgus antipodarum) in central Pennsylvania, USA.

 Miscellaneous. Boats probably introduced the subtropical brown alga (Padina durvillei) in southern California, while the birds species Rüppell’s weaver (Ploceus galbula) is causing. ecological, economic and social impacts in the Eastern Province of Saudi Arabia.

 Please visit our website and download Vol. 9, Issue 1 of BioInvasions Records – it's Open Access!