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Teljarinn-29jul2014-1
Yfir sumart├şmann m├í fylgjast me├░ g├Ângum fiska um teljarann
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P1090169
Teljarinn er staðsettur á móts við
virkjunina ├ş Elli├░a├írdalnum ├ş Reykjav├şk

The Brown Trout in Lake ├×ingvallavatn on Animal Planet┬┤s - River Monsters May 27th 

The final episode in series 5 of River Monsters was partly filmed in Iceland last summer among other places at Lake Thingvallavatn. There the brown trout of Lake Thingvallavatn is introduced and the studies carried out on him by the research company Laxfiskar.

 

The most popular TV series on Animal Planet

In the River Monsters series the biologist and host of the program Jeremy Wade travels all over the world in order to catch giant fish to introduce them. When visiting Iceland Jeremy and his co-workers from  Icon Films were searching  for a material to use in an episode where the topic was the Scottish Loch Ness Monster. Therefore they decided to visit the most known Icelandic relative of the Loch Ness, the giant worm monster in River Lagarfljot.

Jeremy_Wade_-_Icon_film_team-Johannes_Sturlaugsson-_Erlendur_Geirdal-Laxfiskar

Jeremy Wade in the middle in dry suit and the filming crew from  Icon Films along with Erlendur Geirdal and Johannes Sturlaugsson from Laxfiskar

 

Meeting with the king

The stories of the big brown trout in Lake Thingvallavatn drew  the attention of the River Monster Team, and they decide to pay the king of Icelandic freshwater fishes a visit when visiting Iceland.  These stories were the reason for the appearance of the brown trout and his amazing habitat of Lake Thingvallavatn in the Loch Ness episode of River Monster. This gives people all around  the world an insight into the life of this descendant of the sea trout that inwaded the area following last ice age. As the land rose and the weight of the ice capsule was released from the land, the brown trout in Lake Thingvallavatn area got landlocked as they could not carry out the feeding migration to sea as the waterfalls got to high to pass.

 

Jeremy_Wade_Johannes_Sturlaugsson_Laxfiskar

Johannes Sturlaugsson and Jeremy Wade

 

The brown trout in Lake Thingvallavatn, the living myth

When Jeremy and co-workers visited  the brown trout in Lake Thingvallavatn last midsummer, most of the bigger fish were dispersed in outer areas of Lake Thingvallavatn. Despite that they had the opportunity to meet the beautiful trout, although the troll version of the trout  was not met at that time.  The brown trout in Lake Thingvallavatn is a living myth and the River Monster episode now brings forward bits of his stories, his life habits, behavior and faith.

There are no translations available.

Magna├░ur sei├░ab├║skapur ├ş Elli├░a├ínum 2012 - Sk├Żrsla um ni├░urst├Â├░ur fiskiranns├│knanna 2012 komin ├║t

Ranns├│knir Laxfiska ├í laxi og silungi ├ş vatnakerfi Elli├░a├ínna 2012 fyrir Stangavei├░if├ęlag Reykjav├şkur s├Żndi gott ├ístand fiskistofnanna og v├Âktun ├í hitafari ├ínna endurspegla├░i gott t├ş├░arfar.

 

Elli├░a├írnar kraumu├░u af sumarg├Âmlum sei├░um

Sei├░ab├║skapur ├ş vatnakerfi Elli├░a├ínna var einstaklega g├│├░ur hausti├░ 2012 ├żv├ş af 1940 sei├░um veiddust 1513 laxasei├░i og 427 urri├░asei├░i. Fj├Âldi sumargamalla laxasei├░a ├ş ├ínum hausti├░ 2012 var meiri en nokkru sinni hefur s├ęst vi├░ sei├░aranns├│knir ├ş Elli├░a├ínum. ├×├ęttleiki ├żeirra var sj├Âfaldur mi├░a├░ vi├░ me├░altal 27 vi├░mi├░unar├íra (1981-1982 og 1987-2011) og helmingi meiri en mest hefur or├░i├░ ├í ├żessum ├írum. Fj├Âldi ├írsgamalla sei├░a var einnig mj├Âg g├│├░ur ├żv├ş ├ż├ęttleiki ├żeirra var helmingi meiri en me├░altalsfj├Âldi ├żeirra umr├Ždd vi├░mi├░unar├ír og me├░ ├żv├ş mesta sem s├ęst hefur ├í ├żeim t├şma. Tveggja ├íra sei├░i reyndust r├ętt r├şflega yfir me├░altali vi├░mi├░unar├íranna.

 

Margur er kn├ír ├ż├│ hann s├ę sm├ír

Kyn├żroska h├Žngar me├░ rennandi svil voru 38 ├í me├░al eins og tveggja ├íra laxasei├░anna sem rafveidd voru hausti├░ 2012. Minnsti h├Žngurinn var einungis 7,3 cm a├░ lengd og 4,8 g a├░ ├żyngd en st├Žrsti sei├░ah├Žngurinn 14, 8 cm (41,5 g). ├×egar liti├░ er til ├żeirra sei├░a sem veiddust ├ş rafvei├░unum sem n├í├░ h├Âf├░u 7 cm ├ş lengd e├░a meira ├ż├í f├Žst a├░ kyn├żroska h├Žngsei├░in voru 10% af fj├Âlda ├żeirra. H├Žngar sem kyn├żroskast ├í sei├░astigi berjast ekki um hrygnurnar l├şkt og ├żeir sj├│gengnu og skyldi engan undra. Ef teki├░ mi├░ af minnsta kyn├żroska h├Žngnum fr├í vei├░inni 2012 ├ż├í er hann 600 sinnum l├ęttari en pattaralegur 3 kg sm├ílaxah├Žngur og 1600 sinnum l├ęttari en 8 kg st├│rlaxah├Žngur. ├×├│ einungis v├Žri teki├░ mi├░ af sm├ílaxinum ├ż├í v├Žri saml├şking vi├░ 100 kg karlmann s├║ a├░ hann ├żyrfti a├░ etja kappi vi├░ 60 tonna risa um hylli kvenna. Af ├żessum s├Âkum byggja kyn├żroska h├Žngsei├░i sinn ├írangur ├ş ├ístam├ílum ├í ├żv├ş a├░ laumast og eru ├żv├ş gjarnan nefnd laumarar. ├×v├ş minni sem kyn├żroska h├Žngsei├░i eru ├żv├ş l├şklegra er a├░ ├żau geti fundi├░ fylgsni n├íl├Žgt hrygnu ├ín ├żess a├░ sj├│gengnu h├Žngarnir ver├░i ├żeirra varir og s├│pi ├żeim ├ş burtu. S├ş├░an ├żarf bara a├░ b├ş├░a eftir ├żv├ş a├░ sm├í- e├░a st├│rlaxah├Žngur komi hrygnunni til og nota ├ż├í t├Žkif├Žri├░ og sprauta s├şnum sviljum ├ş p├║kki├░. S├ę hinsvegar enginn sj├│genginn h├Žngur til taks ├ż├í hafa ranns├│knir s├Żnt a├░ kyn├żroska h├Žngar ├í sei├░astigi geta komi├░ hrygnunum til einir s├şns li├░s. 

 

Metvei├░i ├ş Elli├░a├ínum 2015?

S├í gr├ş├░arlegi fj├Âldi sumargamalla laxasei├░a sem var ├ş vatnakerfi Elli├░a├ínna hausti├░ 2012 vekur vonir um mj├Âg sterkan g├Ângusei├░astofn 2014 ├żegar a├░ megni├░ af ├żeim sei├░um gengur v├Žntanlega ├ş sj├│. ├×etta getur or├░i├░ raunin ef skilyr├░i til uppvaxtar sei├░anna ver├░a ├żeim hli├░holl fram a├░ sj├│g├Ângunni og afr├ín ├í ├żeim ├ş ├ínum ekki umfram venju. Ef svona f├Žri ├ż├í yr├░i vei├░isumari├░ 2015 l├şflegt ├ş Elli├░a├ínum og ├ża├░ ├ş meira lagi ef l├şfsskilyr├░i laxins ├ş sj├│ 2014-2015 ver├░a g├│├░. Magn eins og tveggja ├íra laxasei├░a hausti├░ 2012 gefur einnig fyrirheit um a├░ stofn g├Ângusei├░anna 2013 ver├░i umfram me├░allag.

 

G├Ângusei├░in 2012

V├Âktun ├í g├Ângu g├Ângusei├░a laxins til sj├ívar ├ş ma├ş og j├║n├ş s├Żndi a├░ ├║tgangan var r├│leg framan af ma├ş vegna kulda en n├í├░i s├ş├░an h├ímarki 23. ma├ş ├żegar t├Žp 500 sei├░i gengu ├║t ├í einum s├│larhring sem samsvara├░i r├şflega 23% af ├żeim sei├░um sem veidd voru 2012 ├í lei├░ ├żeirra til sj├ívar. Alls voru veidd 2147 g├Ângusei├░i ├ş sei├░agildruna og ├żar af voru 2051 sei├░i merkt me├░ ├Ârmerkjum. Megni├░ af g├Ângusei├░unum gengu ├║t 21.-25. ma├ş e├░a 57% m├Žldrar g├Ângu en s├ş├░an kom minni toppur ├ş ├║tg├Ânguna 28.-31. ma├ş ├żegar 20% g├Ângusei├░anna veiddust. G├Ângusei├░in voru flest tveggja ├íra (63%) en ├żriggja ├íra sei├░i voru 36% af g├Ângunni og fj├Âgurra ├íra sei├░i einungis 1%. Yfir v├Âktunart├şmabil ├║tg├Ângunnar 15. ma├ş - 6. j├║n├ş var m├Žlanlegur fallandi ├ş st├Žr├░ sei├░anna ├żannig a├░ st├Žrst voru sei├░in a├░ jafna├░i ├ş upphafi g├Ângunnar og ├żau minnstu ├ş lok hennar. G├Ângusei├░astofninn 2011 er st├│├░ a├░ baki sm├ílaxag├Ângunni 2012 reikna├░ist um 15 ├ż├║sund sei├░i og var ├żv├ş undir me├░altali v├Âktunar├íranna 1988-2011 sem er r├şflega 19 ├ż├║sund g├Ângusei├░i. ├×essi stofnst├Žr├░ g├Ângusei├░anna sem var 43% minni en g├Ângusei├░astofninn sem st├│├░ a├░ baki g├Ângunni 2011 endurspegla├░ist ├ş vei├░inni 2012.

 

G├Ângur lax og urri├░a 2012

G├Ângur lax og silungs ├ş Elli├░a├írnar voru vakta├░ar yfir t├şmabili├░ 19. j├║n├ş -17. september me├░ kvikmyndafiskteljara ├ş Austurkv├şsl ├ínna en enginn fiskur gat ├ż├│ gengi├░ upp fyrir teljaragir├░inguna fr├í ├żv├ş a├░ g├Ângusei├░av├Âktunin h├│fst 15. ma├ş. Alls gengu 1294 laxar ├ş ├írnar 2012 en ├żar af veiddust 342 laxar ne├░an teljarans. Urri├░ar sem gengu upp teljarann 2012 voru 406, a├░ mestu sj├│birtingar. Miki├░ var af uppvaxandi sj├│birtingi ├żv├ş helmingur af g├Ângunni var undir 30 cm a├░ lengd en urri├░arnir sem komnir voru ├ş vei├░ist├Žr├░ voru sumir mj├Âg v├Žnir ├żv├ş um 5% ├żeirra voru 60-80 cm langir. Uppista├░a hrygningarg├Ângu laxins var a├░ vanda sm├ílaxar sem voru 1254 a├░ t├Âlu e├░a um 97% g├Ângunnar. St├Žrsti laxinn sem f├│r um teljarann 2012 var 94 cm langur. Endurheimtuhlutfall ├Ârmerktra sm├ílaxa var 8,3% sem er r├ętt undir 8,6% me├░alheimtum sm├ílaxa v├Âktunar├íranna 1989-2012. ├×essi lifitala laxins yfir sj├ívarg├Ânguna sk├Żrir ├żv├ş minna af fr├ívikinu fr├í me├░al├ístandi laxgengdarinnar en g├Ângusei├░astofninn. Lax gekk af miklum krafti snemmsumars sem sj├í m├í af ├żv├ş a├░ 50% af laxag├Ângunni haf├░i skila├░ s├ęr 7. j├║l├ş. En til samanbur├░ar var helmingur urri├░anna sem a├░ mestu voru sj├│birtingar genginn um teljarann 16. ├íg├║st. Sj├│birtingurinn var enn a├░ ganga 17. september ├żegar teljarinn var tekinn upp en s├ş├░ustu laxarnir sem f├│ru um teljarann voru ├żar fyrstu vikuna ├ş september.

 

G├Ângurnar me├░ hli├░sj├│n af t├şma s├│lahrings

Laxinn gekk mest upp ├ína ├ş h├║minu ├żegar s├│l var sest. Af g├Ângunni 2012 gekk 57% laxins upp fiskteljarann ├í fyrstu 2 klukkustundunum eftir mi├░n├Žtti, 77% af laxinum haf├░i gengi├░ upp fyrstu 5 klukkut├şma s├│larhringsins og 10% gekk a├░ kveldinu s├ş├░ustu 2 klukkustundir s├│larhringsins. Fer├░atilh├Âgunin ├ş g├Ângum urri├░anna var samb├Žrileg me├░ hli├░sj├│n af t├şma s├│larhrings.

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There are no translations available.

Gervitunglag├Âgn yfir fiskig├Ângur grundv├Âllur ├żj├│nustu vi├░ ├║tger├░ar- og ranns├│knaa├░ila

Greinin birtist ├ş Fiskifr├ęttum 27. mars 2013

├×r├│unarverkefni skapar n├Żtt fiskleitar├║rr├Ž├░i

Gervitunglafiskmerki gera kleift a├░ fylgjast me├░ fer├░um fiska og safna uppl├Żsingum um atferli ├żeirra og umhverfi ├ín ├żess a├░ sl├şkt ├║theimti a├░ fiskarnir s├ęu endurveiddir. Ranns├│knafyrirt├Žki├░ Laxfiskar innleiddi 2011 notkun ├żessara merkja ├ş fiskiranns├│knum h├ęr vi├░ land og ├ş ├żeirri vinnu komum vi├░ auga ├í t├Žkif├Žri sem felst ├ş ├żv├ş a├░ n├Żta ├żessa fjark├Ânnunart├Žkni til a├░ auka hagkv├Žmni fiskvei├░a samhli├░a ├żv├ş a├░ afla n├Żrrar hagn├Żtrar ├żekkingar. Grundv├Âllur ├żess er a├░ n├Żta sem vi├░mi├░ vi├░ fiskvei├░ar n├ív├Žm landfr├Ž├░ileg g├Âgn fr├í fer├░um merktra fiska sem afla├░ er um gervitungl. Sl├şkar uppl├Żsingar auka s├│knarf├Žri ├ş fiskvei├░um b├Ž├░i innan og utan ├żekktra vei├░isv├Ž├░a og gera f├Žrt a├░ draga ├║r ol├şukostna├░i vi├░ vei├░arnar. ├Ür var├░ a├░ vi├░ settum upp ├żr├│unarverkefni til a├░ fylgja ├żeirri hugmynd eftir sem n├║ er unni├░ a├░ ├żv├ş a├░ fj├írmagna me├░ styrkums├│knum ├ş ranns├│knasj├│├░i. Hugmyndin var kynnt fyrir ├║tger├░arfyrirt├Žkjunum Brim, HB Granda og ├ľgurv├şk sem ├Žtla a├░ taka ├ż├ítt ├ş verkefninu me├░ ├żv├ş a├░ leggja til pr├│fanir ├í a├░fer├░afr├Ž├░inni. Auk ├żeirra taka ├ż├ítt ├ş verkefninu ├ürni Geir P├ílsson vi├░skiptafr├Ž├░ingur og Gu├░mundur Geirdal sem gerir ├║t b├ítinn G├şsla K├ô 10 en hann hefur um nokkura ├íra skei├░ unni├░ me├░ Laxfiskum a├░ ranns├│knum ├í sj├ívarfiskum.

├×r├│un ├í v├Âktunar├żj├│nustu ÔÇô Fiskisl├│├░in

├×r├│unarverkefni├░ ber nafni├░ Fiskisl├│├░in og er ├ş reynd tv├şvirkt ├żv├ş ├żj├│nustan sem veri├░ a├░ ├żr├│a sinnir ├ş senn ├║tger├░ar- og ranns├│knaa├░ilum. Lagt er upp me├░ ├ża├░ a├░ ├żeir sem grei├░a fyrir ├żj├│nustuna f├íi ÔÇťtvo fyrir einnÔÇŁ enda myndu b├Ž├░i ├║tger├░ara├░ilar og ranns├│knara├░ilar ├í bor├░ vi├░ Hafranns├│knastofnun geta n├Żtt ├Âll g├Âgn sem afla├░ er.

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The fidelity of wolffish towards feeding area in fjord

Steinbitur_HSM_Hvalfirdi_Wolffish_Copyright_Erlendur_Geirdal_Laxfiskar-2010

Movements and migration behaviour of common wolffish (Anarhichas lupus) were studied in Fjord Hvalfjordur W-Iceland throughout June 2010 ÔÇô March 2012. Sampling on the geographical distribution and depth of the wolffish during their stay in Hvalfjord was carried out by tagging fish in June 2010 and May 2011. Using ultrasonic transmitters and by monitoring by logging the dwelling of those fish within detecting area of stationary listening stations throughout the fjord area. Main aim of the study was to map the movements and migration patterns of wolffish in infjord area in relation to time of the year and environmental factors. 
The information received represent the first data on migration behaviour of wolffish individuals in Icelandic waters including data covering period of 34 months. The dwelling of wolffish (67-77 cm in length) within detection area of the receivers and their movements between them has given information on how they utilise the fjord area and on their travelling speed. The wolffish forage in Hvalfjord from January until end of August but are in outer areas in-between due to spawning and the migration involved before and following spawning. Following spawning the wolffish entered the feeding grounds of Hvalfjord in January - April where most of them stayed until June - August when they migrated out of the fjord in the beginning of the spawning migration or just before.  The recorded depth of wolffish in Hvalfjord was ranging from 22 to 49 m and their mean travelling speed when moving between stations where mainly 0,2-0,4 km with instances of higher mean speed, up to 2.5 km/hour. During the summer the wolffish showed generally fidelity to narrow feeding areas as reflected by their staying within detection area of receivers (0,5 km2 +/- 0,3 km2), with examples of such dwelling of individual within range of one station for 20-63% of its time every week for 3 months. The annual monitoring of wolffish in Hvalfjord showed that they entered this feeding area year after year.  The best example of this fidelity of wolffish towards their feeding grounds in the fjord area is the dwelling of two wolffish there for 3 years in a row. This first tagging of wolffish with electronic tags in Icelandic waters have given new information on behaviour ecology of wolffish that are valuable to improve further research on the fish and serve as important references when decisions concerning utilisation of wolffish are taken. In December 2012 report was published (in Icelandic with English abstract) revealing results of the wolffish study 2010-2012 that can be accessed here: G├Ânguheg├░un steinb├şts ├ş Hvalfir├░i

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N├Ż sk├Żrsla um ├żorskranns├│knir    

├üfangask├Żrsla um kortlagningu ├í g├Ângulei├░um ├żorsks me├░ gervitunglamerkjum er komin ├║t

├Ź desember 2012 voru birtar ├ş sk├Żrslu fyrstu ni├░urst├Â├░ur ranns├│knar Laxfiska ├í ├żorski me├░ gervitunglafiskmerkjum fr├í merkingum vori├░ 2012. Vi├░ erum stoltir af ├żv├ş frumkv├Â├░lastarfi sem f├│lst ├ş ├żv├ş a├░ hefja ├żorskranns├│knir ├í veraldarv├şsu me├░ ├żessari t├Žkni og s├ęrlega ├ín├Žg├░ir me├░ ├║tkomuna. T├Žknilega gekk verkefni├░ upp ├żv├ş ├Âll ├ítta merkin skilu├░u af s├ęr uppl├Żsingum um fer├░ir ├żorskanna um gervitungl. Landfr├Ž├░ilegra uppl├Żsinga um fer├░ir ├żorskanna er afla├░ ├ín ├żess a├░ ├ż├Ârf s├ę ├í a├░ endurvei├░a ├ż├í til a├░ endurheimta rafeindafiskmerki ├żeirra. ├×a├░ a├░ uppl├Żsinga├Âflunin s├ę ekki vei├░ih├í├░ gerir me├░al annars kleift a├░ afla uppl├Żsinga um fer├░ir fiskanna utan hef├░bundinna vei├░isv├Ž├░a og um um afdrif ├żorska sem enda ├Žvina ├ş maga afr├Žningja l├şkt og ├żorskurinn J├│nas ├ş hvalnum var d├Žmi um.  Laxfiskar vinna n├║ a├░ ├żv├ş a├░ ├║tf├Žra og fj├írmagna framhald ├żessara ranns├│kna.


PSAT-Tags_Pop-Up_for_Cod_1-7-Laxfiskar-2012

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