{"id":10810,"date":"2024-09-27T11:38:11","date_gmt":"2024-09-27T09:38:11","guid":{"rendered":"https:\/\/www.npkrka.hr\/?p=10810"},"modified":"2025-12-02T13:01:31","modified_gmt":"2025-12-02T12:01:31","slug":"speleoronilacka-istrazivanja-spiljskog-sustava-miljacka-i-v-u-nacionalnom-parku-krka","status":"publish","type":"post","link":"https:\/\/npkrka.hr\/hr\/2024\/09\/27\/speleoronilacka-istrazivanja-spiljskog-sustava-miljacka-i-v-u-nacionalnom-parku-krka\/","title":{"rendered":"Speleoronila\u010dka istra\u017eivanja \u0161piljskog sustava Miljacka I\u2013V u Nacionalnom parku \u201eKrka\u201c"},"content":{"rendered":"

[hr]Od 23. do 30. kolovoza 2024. godine Dru\u0161tvo za istra\u017eivanje kr\u0161a \u2013 Freatik provelo je speleoronila\u010dka istra\u017eivanja u potopljenom dijelu \u0161piljskog sustava Miljacka I\u2013V<\/strong><\/p>\n

Nastavak je to istra\u017eivanja iz 2017. godine kada je istra\u017eeno i topografski snimljeno 1 008 m potopljenog glavnog kanala. O\u010dekivalo se da \u0107e se kanal dalje nastaviti pru\u017eati istim smjerom i nakon nekoliko stotina metara izroniti u suhi dio. Tada su istra\u017eena dodatna 754 m pa je ukupna duljina sustava iznosila 2 284 m.<\/p>\n

Kompleksnost \u0161piljskog sustava zahtijevala je kori\u0161tenje razli\u010ditih tehnika istra\u017eivanja, a nova sigurnosna (Arijadnina) nit postavljena je u duljini od 1 km.<\/p>\n

U istra\u017eivanju su otkrivena dva nova potopljena sporedna kanala, Prvi bypass<\/em>, dug 40 m, i Drugi bypass<\/em>, dug 81 m, \u010dija morfologija ukazuje na to da su se razvijali usporedno s glavnim kanalom u zoni vode temeljnice. Novoistra\u017eeni dio glavnog kanala po\u010dinje na 24 m dubine i nastavlja se 8 m dubokom vertikalom, od koje se dalje koso prote\u017ee. S istra\u017eivanjima se stalo na 56 m dubine, gdje se kanal nastavlja novim skokom od nekoliko metara u dubinu. Kanal se nastavlja generalnim smjerom pru\u017eanja SZ-JI, me\u0111utim njegova morfologija je znatno slo\u017eenija, \u0161to ukazuje na izra\u017eeniju tektoniku u tom dijelu sustava. Postoji perspektiva za daljnje istra\u017eivanje glavnog kanala na dubini ve\u0107oj od 56 m, \u0161to je tehni\u010dki i sigurnosno izuzetno zahtjevno. Izmjerena temperatura vode od 13\u00b0C stalna je du\u017e sustava Miljacka I\u2013V.<\/p>\n

Istra\u017eivanjem i topografskim snimanjem novoistra\u017eenih dijelova duljina sustava Miljacka I\u2013V pove\u0107ana je za ukupno 251 m, tako njegova nova duljina iznosi 2 707 m, dubina velikog sifona 56 m, ukupna dubina 57 m, a visinska razlika 68 m. Glavni kanal sustava Miljacka I\u2013V najdublji je potopljeni kanal u NP \u201eKrka\u201c i jedan je od pet najduljih potopljenih kanala u Hrvatskoj.<\/p>\n

Tijekom istra\u017eivanja zabilje\u017eene su jedinke stigobiontske faune: \u0161piljska kozica Troglocaris<\/em> sp., \u0161piljska kugla\u0161ica Monolistra<\/em> sp., \u0161piljska vodenbabura Spheromides<\/em> sp. i \u010dovje\u010dja ribica Proteus anguinus<\/em>. Posebno nas veseli \u0161to je u udaljenom dijelu sustava otkriveno novo mikrostani\u0161te \u010dovje\u010dje ribice s ve\u0107im brojem jedinki juvenilnog i subadultnog stadija.<\/p>\n

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[en]
\nDiving investigations of the cave system Miljacka I-V<\/strong>
\nIn the period August 23-30, 2024, the Society for Karst Research – Freatik conducted speleology diving research in the submerged part of the Miljacka I-V cave system<\/strong><\/p>\n

This is a continuation of the research from 2017, when 1008 m of the main submerged channel was investigated and topographically recorded. It was expected that the channel would continue to extend in the same direction and emerge into a dry part after a few hundred meters. The system was then explored for an additional 754 m, and the total length of the system measured 2284 m.<\/p>\n

The complexity of the cave system required the use of varied research techniques, and a new safety element (Ariadne’s thread<\/em>) was installed for a length of 1 km.<\/p>\n

The conducted research revealed two new submerged side canals, the First Bypass with a length of 40 m, and the Second Bypass with a length of 81 m, the morphology of which indicates that they developed parallel to the main channel in the zone of the water base. The newly explored part of the main channel starts at a depth of 24 m and continues with an 8 m deep vertical channel, from which it extends diagonally. The investigations stopped at a depth of 56 m, where the channel continues with a new drop of several meters in depth. The channel continues in the general NW-SE direction, however, its morphology is significantly more complex, which indicates more pronounced tectonics in this part of the system. There is a perspective for further exploration of the main channel at a depth greater than 56 m, which is extremely demanding in terms of technique and safety. The measured water temperature was 13\u00b0C and is constant along the entire Miljacka I-V system.<\/p>\n

During the surveying and topographical recording of the newly explored parts of the Miljacka I-V system, its known length was increased by a total of 251 m. The new length of the Miljacka I-V system is 2707 m, the depth of the large siphon 56 m, the total depth 57 m, and the height difference 68 m. The main channel of the Miljacka I-V system is the deepest submerged channel in the Krka National Park and is one of the 5 longest submerged channels in Croatia.<\/p>\n

During the investigations, individuals of stygobiont species were recorded: cave shrimp Troglocaris sp<\/em>., cave isopods Monolistra<\/em> sp., cave water-lice Spheromides<\/em> sp., and the olm, Proteus anguinus<\/em>. We are particularly pleased that in a remote part of the system, a new microhabitat of olms with a large number of juvenile and subadult stage individuals was discovered.<\/p>\n

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Od 23. do 30. kolovoza 2024. godine Dru\u0161tvo za istra\u017eivanje kr\u0161a \u2013 Freatik provelo je speleoronila\u010dka istra\u017eivanja u potopljenom dijelu \u0161piljskog sustava Miljacka I\u2013V<\/p>\n","protected":false},"author":2,"featured_media":10819,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[],"class_list":["post-10810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research"],"_links":{"self":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/10810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/comments?post=10810"}],"version-history":[{"count":4,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/10810\/revisions"}],"predecessor-version":[{"id":14096,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/10810\/revisions\/14096"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/media\/10819"}],"wp:attachment":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/media?parent=10810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/categories?post=10810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/tags?post=10810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}