Tuesday, May 21, 2019

Amateur ichthyology in Vancouver: 2008 flashback




Flashback: Summer 2008

Back in the summer of 2008, Dimitri and I (later Vasso too) spent a full month or more in Vancouver, my home city. "We" were writing my PhD then and stayed at my Sister's and Brother's homes. It was a memorable because my son was wild about fishing and I really enjoyed the fish-watching.

I share some photos, most of them personal, but I guess you get the idea.  An 11 year old kid really should be exposed to the wonders of the aqua-world in this way. And we are so much richer for it.


FISHES OF ENGLISH BAY - WEST VANCOUVER









WITH THE FIRST NATIONS PEOPLE OF THE HOPE VALLEY - FRASER RIVER






WITH THE FEDERAL GOVERNMENT RIVER FISHEREIS ECOLOGISTS ON THE FRASER





BURRARD INLET EAST VANCOUVER





CUT-THROAT TROUT FISHING AT COSTA'S CREEK - WEST VANCOUVER



WITH FAMILY




Spiny dogfish, not caught by us - it needs special gear and is targetted by the oriental fishers on the Kits jetty. 

SEYMOUR VALLEY AND SEYMOUR RIVER - NORTH VANCOUVER


And a final shot of my sadly lost friend Volker Bodegom who passed away in 2018. We would often go to these swiming holes on the Seymour when I was a student back in the days...We miss you Volker! 


River barriers and conservation actions in Greece: First-ever meeting!



(Zarris on stage, Photo by M. Gaethlich)
River Conservation Actions: National AMBER meeting in Athens
May 8th 2019

This was the first-ever meeting to deploy the concept of river barrier and dam removal in Greece! It was organized by the AMBER consortium (Adaptive Management of Barriers in European River, an EU supported H2020 project). The meeting was supported by the Hellenic Ministry of Environment and Energy and HCMR. And it was tightly focused on the issue of barriers, river engineering to mitigate and restore rivers.

I came away from this with a lot of good knowledge, and also some pain: some brief inflection points here:

-We really need to focus on barriers in Greece, we circulated a questionnaire and are working with a PhD student on this issue, but its really just a beginning for Greece.

- Greece is focusing on "routine monitoring" in rivers but it is largely neglecting active measures for river restoration and practical conservation at both the basin and the river water body level. Neglecting restoration work such as barrier issues is a serious gap in our obligations in the WFD process and a serious missed opportunity for conservation of globally threatened species and ecosystems. Please see a review of ours on this here: River_and_Wetland_Restoration_in_Greece_Lessons

-Greece has no experience in barrier removal while other EU states are moving fast ahead-despite the economic recession and very serious EU complications (...and this includes Spain and Portugal). We have not even thought-out this issue and have not even reviewed the potential impacts of barriers on the biota in a general sense in this country. Greece has not removed a single longitudinal barrier or dam ever... (even Cyprus has revolved on small weir within its restoration measures in the WFD context). There are several situations that we know of where we have old and useless barriers (small weirs, anti-erosion barriers, old retention dams) that could be assessed for removal in Greece.

-Greece is remarkably behind in completed or well-developed Nature-Based Solutions and re-wilding of urban and peri-urban streams and rivers. (By 'behind' I mean "really-way-behind" the rest of Europe - not just the EU Med states). This saddens me. And it is sad that we are missing opportunities in peri-urban situations around Athens where we are wasting hundreds of millions of Euros on anachronistic and nature-destructive projects for anti-flood works (i.e. Rafina's Megalo Rema, Erasinos Stream in the Vravrona Natura 2000 site, the Podoniftis stream in the Kifissos basin). This is a scandallous situation that must be re-examined by scientist, engineers, policy-makers, politicians and other stakeholders.

- In Greece we are still not experienced at building a healthy conversation about dams and barreirs. Some colleagues are easy at promoting controversy and not prone to discuss openly the real needs for mitigation measures (and the feasibility and management aspects of this).  Polorization and "extremes" dominate many silly arguments. Speaking for myself, as a researcher who was worked in many arid/semi-arid countries in the Med and the Middle East, I know that dams are "needed", no doubt, no one can be against "all dams"... But: how to manage dams and barriers? and where to place them? and even the potential for removing some useless dams and barriers is what I would like to a talk more about.

-Removing barriers (including dams) and doing ecological restoration gives new opportunities for major engineering works and allows environmentalists to work closely with creative planners and river engineers. In 2015, my friend K.G.Papaconstantinou made a case of a new agenda needed for river engineering through ecological restoration in Greece, the piece he wrote is timely...(Greek readers please see p. 58 here: EU_Directive_200060_and_the_conservation_of_inland_waters)

-  Finally, please see the PDFs of the 8 speakers of this meeting here: 
workshop-river-conservation-actions-national-amber-meeting

I want to thank the following HCMR people for supporting this initiative and helping me in its set-up in Athens: Christina Papadaki, Aimilia Panagiotou, Haris Vavalidis, Giannis Kapakos, Angeliki Mentzafou and Elias Dimitriou. From the Hellenic Ministry of Environment and Energy I would like to thank Ioannis Mitsopoulos for his time and effort in helping this happen here.


Prof. Andreas Eftstratiadis from NTUA opened the first session with a well-documented over-view.

The fish-pass engineer and Dam-good organizaer, Mrs. Pao Fernández Garrido of the World Fish Migration Foundation. She organized the meeting from start to finish! 

Dr. Argyrios Sapounidis from the Hellenic Agricultural Organization -Demetra gave us a well-illustrated case-study from the Nestos.

My long-time friend Dr. Jose Maria Santos from Instituto Superior de Agronomia of Lisbon gave us one of the best fish-pass state-of-the-art stories ever! 

Dr. Dimitris Zarris who studied at the  National Technical University of Athens and is also working on conservation issues in Attika gave an excellent overview of our urban stream problems.

From Dimitris Zarris slides: the main problems in Attika....


From my presentation: I was lucky to be speaking to a nearly full-house on this very important topic! 

From J.M. Santos' slides of the new-age fish passes in Portugal...

Our warmest thanks to the Ministry for hosting us and especialy to Ioannis Mitsopoulos who set the stage for us. 

Post-workshop 'field trip' to the karstic hills of Athens with star professors and researchers: Marta González del Tánago (Polytechnic University of Madrid), Piotr Parasiewics (Sakowicz Inland Fisheries Institute, Poland) and Diego Garcia de Jalon (Polytechnic University of Madrid) and Yours! 

Post-workshop meeting down at our Research Institute at HCMR Anavyssos with friends from North Macedonia: Dusica Ilik-Boeva and Zoran Spirkovski. I guess these are two of the first visitors to visit our government institute after the Prespa Agreement and the changing of the name of their country. A good beginning I hope... 


Saturday, February 16, 2019

Boat electrofishing the Evros River: Summer 2018




The Evros
Sampling in September 2018

The Evros, Maritsa, Meriç...In Greece it is a shared river. It has about ten major tributaries entering the main stem from Greek territory. Shared with Turkey and Bulgaria. It is my favorite river.

We have been doing a lot of work here because we love big rivers, and this is perhaps the last "sturgeon river" in the Med and one of the richest in terms of a full sweep of biodiversity - in the Greek part, from its upland tributaries to the Delta.

I'm posting snap shots from our September HCMR visit. Water Framework Directive boat-fishing in the river at four sites (see our map below - near the end of the pics). And many thanks to the Hellenic Army that helped us in this peaceful endeaver.



The Evros is just full of fish! You definately need to nets here...


Sometimes they don't fit in the net: European wells (Silurus glanis).

One of the most interesting predatory fishes in the Evros: Asp (Leuciscus aspius).
Common Bream (Abramis brama)- not at all common in Greek river waters.

The Pikepearch (Sander lucioperca), another predatory species - this is its fry! 

Prussian carp (Carassius gibelio) - an alien from the orient that has led to the extirpation of its wild native cousin, the Crussian Carp - now a mystery fish for Greece (and probably extinct). 
Evros_md (see map below). First site on the Evros across from the Turkish border, south of Edirne/Adrianoupolis. 

Evros_up is across from the Bulgarian border. Here you can easily stray into uncharted waters if you are not careful - I think we officially visited Bulgaria on this survey. 

Erythro_dw is near the town of Didymoteicho. Water abstraction and pollution creates this kind of situation: a very interesting site for bioassessment (only 13 spp here). 

Erythro_dw and the common water chestnut (Trapa natans).

Erythro_dw: negotiating with the trees with military help, before we can dump the boat in the river.

European rudd (Scardinius erythophthalmus).

Top-mouth Gudgeon (Pseudorasbora parva), one of the most threatening aind notorius invasive aliens species in Europe.

Getting boats ready. Ours is a german-made skiff (5 m.). 

Me with the fishermen: Kostas and Alexandros!

Carp (Cyprinus carpio) are known to be native to the Evros.

Yours, Kostas and Vassilis. The tiny islet on the left belongs to Turkey, we think...(judging by Google maps...so we did'nt go near it...).

Some kind of huge water snail...abundant in the river, often on the artificial groynes.

One of my favorite fishes in the Evros - a Ponto-Caspian goby that is Native to the river, the tube-nosed goby (Proterorhinus semilunaris). It is abundant. 

The Pontian monkey goby (Neogobius fluviatilis) discovered by our team in 2011 and now after so many years caught again at two sites! This now-to-be sure alien/translocated species is surviving well in the area - but it is not easy to catch by boat-based electrofishing. 


And a new discovery for Greece and the Evros basin, The racer goby (Babka gymnotrachelus). This to our knowledge the first find of this Ponto-Caspian species in the Aegean drainage basins. A new alien species for Greece! We found them both at Evros_up and Evros_md and they should be searched carefully througout the basin.  


Our four sites on the Evros river (in Red). Intenational borderlines are approximate and copied from a widely circulated internet map - we appologise if they are not entirely accurate. The issue of borders is still very sensitive in this area (design by Alexandros Ntakis)



In the Evros we stay at the village of Dadia, inside the National Park. Yes a chance for us to take an early morning birding walk...