Giant Karst Springs – Rijeka Gacka, Croatia


 
 
 
 

Gacka is a river located in the Lika region in central Croatia. Because for a large part of its course it is a subterranean river, estimates on its length vary. The overground part has undergone substantial human intervention - before it was 32 kilometers long, now it is only 11 km. It has been regulated by man to flow into an aquaduct in Gusic´ polje (known as Tunel Gacka-Gusic´ Jezero and then into the Adriatic Sea through a hydroelectric installation HE Senj near Sveti Juraj. HE Senj takes inflow from Gacka and Lika, since it was built in 1965. The river passes through karst fields and most notably the town Otocac, and its headwaters are known as a superb spot for trout fishing.

Freshwater Ecoregion of the World : #419 Dalmatia
Major Habitat Type: temperate coastal rivers


Produced in 2012, with some images from 2004, 2005 and 2007 (and even from 1987!)
Red dots
indicate personal favorites.

Underwater : The Springs of the Gacka River

       

U16-001

U16-003

  U16-004

  U16-005

U16-007

U16-008

U16-009

U16-010

U16-012

U16-013

U16-014

U16-015

U16-016

  U16-017

U16-018

  U16-020

       

U16-02
3

U16-02
4

  U16-025

U16-02
6

U16-02
8

U16-02
9

U16-03
0

U16-03
1

  U16-034

U16-03
5

  U16-036

U16-03
7

U16-03
9

U16-04
0

U16-04
1

U16-04
2

U16-04
4

U16-04
5

U16-04
7

U16-04
8

U16-04
9

U16-051

U16-05
2

U16-05
3

Produced before 2012

       

  X99-883

  X99-882

  X99-874

X99-650

X99-644


X99-639


  X99-633


X99-631


  X99-621


  X99-376


X99-330


X99-442


X99-332


X99-428


X99-434


X99-325

Underwater : The Gacka River

       

  U16-054

U16-05
5

U16-05
6

U16-05
7

U16-062

U16-063

  U16-064

U16-065
with Brown trout

  U16-066

U16-067

U16-068

U16-069

Produced before 2012

       

  X99-889

X99-888

  X99-885

X99-884

X99-868

X99-866

  X99-864

X99-862

X99-674 (2005)

X99-453 (2004)

X99-436

X99-348

  F02-254 Brown trout

F02-253 Brown trout

F02-012
Brown trout (1987)

  F02-011 Brown trout (1987)

Landscapes
       

U16-501

U16-502

U16-503

U16-504

U16-505

U16-506

U16-507

U16-508
       

Website Michel Roggo Copyrights of all images, movies and other contents 2021 ©  Michel Roggo The Freshwater Project Website