Rwendo rwesainzi kumaodzanyemba kweChile rwakanyora kekutanga Larval stage ye icefish (Champsocephalus esox) mu Useless Bay, pamhenderekedzo yeTierra del Fuego. Rekodhi, zvisati zvamboitika zvesainzi, zvakawanikwa panguva yemushandirapamwe muna Chikunguru 2024 umo sampling yakaitwa kubva pambiru yemvura kusvika pasi pegungwa.
Kuwanikwa kunopa chidimbu chisipo chekunzwisisa kutenderera kwehupenyu hwemhando iyi, iyo chete muboka rayo inorarama kunze kweAntarctic kondinendiZvinoenderana nechikwata chemumunda, chekutarisa chikamu chekubatana kwekuedza kuratidza ecosystem yebhayi vachishandisa nzira dzakamira uye dzakaenzaniswa nedzimwe nyika.
Kuwanikwa uye nei zvakakosha
Muenzaniso, zvishoma 2 masentimita, akabatwa ne red bongoIyi inzira yakajairika yekuunganidza zooplankton nemhuka dzakabatana. Mushure mekuzivikanwa kwayo, yakatumirwa kune National Museum of Natural History yeChile kuitira kuchengetedzwa kwayo nekubvunzurudzwa nenharaunda yevatsvagiridzo.
Iyo tekinoroji timu inosimbisa kuti kuve nezvinhu zviripo mukati matanho ekutanga Izvi zvinofambisa taxonomic kuzivikanwa, sezvo morphological shanduko panguva yekuvandudzwa kwehove yebony inogona kuve yakakosha. Ichi chinyorwa chitsva chichabatsira kunatsiridza makiyi ekuongorora uye mareferensi ekuenzanisa zvezvidzidzo zveramangwana.
Mutungamiriri weMarine Program akabatanidzwa, Mathias Hüne, yakaratidza kuti rekodhi rekodhi reChampsocephalus esox rinopa rubatsiro rwakakura kune ruzivo rwekusiyana kweBahía Inútil uye inotsigira kuongororwa kwe ecological maitiro munzvimbo.
Ndiani akatora chikamu uye hurongwa hwekutsvagisa
Mushandirapamwe uyu wakatangwa na Kudzokorora Chile Marine Chirongwa, nekubatanidzwa kwe Universidad de Magallanes and the Valparaíso UniversityChinangwa chaive chekugadzira a comprehensive characterization yehurongwa: kubva zooplankton uye nharaunda dzakadzika-gungwa kusvika kune substrate-yakabatana masangano.
Iyo seti yehunyanzvi yaisanganisira yambotaurwa bongo net, pasi pemvura robotic makamera y dredgesIzvi zvakabvumira kuunganidzwa kwe data rakafanana pakuumbwa, biomass, uye kugovera. Iyi nzira yezvinangwa zvakawanda inofambisa kuzivikanwa kwe ecological maitiro uye dzvinyiriro dzinobvira dzavanhu.
Hove yakajaira kutonhora zvakanyanya
Izvo zvinonzi icefish Ivo vane mukurumbira nekuda kwekuchinja kwavo kumvura yechando, yakafanana neyeimwe hove dzemvura inotonhora. Mamwe marudzi, akadai Chaenocephalus aceratus, ikozvino translucent body, kusavapo kwezvikero uye ropa risina ruvara, inokwanisa kutakura okisijeni pasina hemoglobin.
Of the 16 marudzi anozivikanwa Paboka iri, Champsocephalus esox ndiyo yega inogoverwa mhiri kweAntarcticaVagari vavo vanogara muStrait yeMagellan, Tierra del Fuego, Beagle Channel, uye Falkland/Malvinas Islands, uko vanhu veYaghan vanozviziva se. “tsataki”.
Biodiversity yeUseless Bay: data yanga isati yayerwa
Rwendo urwu rwakagadzira X-ray isati yamboitika ye benthic assemblages kubva munzvimbo. Vakazivikanwa dzinopfuura zana marudzi yezvisina vertebrate zvakaoma kuona nemaziso uye zvinenge 150 zvikamu yezvipenyu zvepasi, kunyanya polychaetes, kiyi kune kudzokororwa kwezve organic matter uye maketani ezvokudya. Izvi zvakawanikwa zvinobatana nebasa re makamuri akatsaurirwa kune invertebrates mumasangano esainzi.
Nharaunda dzakabatana ne nzvimbo dzakadzika dzekugara nekusiyana kukuru uye biomass. Sekutaura kwemudzidzi Américo Montiel (UMAG), Bahía Inútil aive pakati pezvikamu zvine ruzivo rwakashomeka, uye parizvino ane data kupfuma chaikokugovera uye biomass.
Mabasa ekuwedzera anoitwa munzvimbo dandemutande, mussels uye urchins dzegungwaNaizvozvo, kuva nemareferensi akatevedzana pazasi pegungwa kunozobatsira kubata mashandisirwo nenzira ine ruzivo uye kugadzirisa zvinogoneka zvinokanganisa munharaunda.
Kutyisidzirwa uye kuda kudzivirirwa
The ecosystem inotarisana nemadzvinyiriro akadai kubata hove, the micro-dumps and the kudziya kwegungwapamusoro pezvirongwa zveindasitiri zvingangoitwa. Muna 2023, Forum for the Conservation of the Patagonian Sea yakaratidza nzvimbo iyi seimwe yemacro-ecosystems ine. mwero wakaderera wekudzivirira mudunhu
Kune Champsocephalus esox, maitiro ari kunetsa: fungidziro yemunda uye zvidzidzo zvinonongedza kudzikira kwekutenderera. 30% muzvizvarwa zvitatu. Naizvozvo, the IUCN Yakaverengerwa muchikamu chemhando muna 2019. kunetsaIzvi zvinosimbisa kukurumidza kwehutungamiri uye matanho ekudzivirira.
Nerekodhi yekutanga yakanyorwa zvino uye nzvimbo yakapfuma yezvisikwa, nzvimbo yeBahía Inútil inowana nzvimbo simbisa kuchengetedza kwayo, kunatsiridza kuongororwa uye kutungamira sarudzo dzeveruzhinji nerutsigiro rwesainzi, chimwe chinhu chinokosheswa nenharaunda yekutsvagisa uye inodiwa nekutonga kwenzvimbo.
