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Questions related from Ton van Haaren
is anybody familiar with species identification of Euphausiidae shrimps, also known as krill? A co-worker (W. Langbroek) collected a specimen in a shallow marine bay along our Dutch coast at...
03 March 2018 9,098 6 View
Is there anybody that can help me with literature on faunistics, ecology and biology of Alboglossiphonia lata? And is it true that the species was previously known as Glossiphonia weberi lata? Any...
10 October 2017 8,006 1 View
A co-worker found this unknow flatworm along a citycanal in Amsterdam. We have no idea what this might be, so any help is welcome. It is probably non-indigenous. It was collected using a pondnet...
02 February 2017 7,794 9 View
On behalf of a a Dutch co-worker (Paul Veenvliet) I would like your advice on this earthworm seen in Slovenia. It was seen in the Notranjska area near Rakov Skocjan (lat 45.790 lon 14.303) on...
09 September 2016 7,680 22 View
Found this pair of Bopyrids in a sample also containing Upogebia deltaura, Callianassa subterranea and Pisidia longicornis. Unfortunately the host is unknown for it was detached. Both Upogebia and...
11 November 2015 6,616 5 View
A pair of specimens were found underneath the carapax of an Upogebia deltaura juvenile of about 14mm in length. Underneath the left side a male was visible with a curious pair of blackish...
06 June 2015 9,907 10 View
For dispersal from one waterbody to another or perhaps even from one catchment to another, aquatic insects follow the stream and/or suppose to use the polarization visibility of the watersurface....
01 January 1970 1,118 13 View
