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3 Fish biology and anatomy Биологија и анатомија на ... - UNDP

3 Fish biology and anatomy Биологија и анатомија на ... - UNDP

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RECORDED ALIEN SPECIES ПОРАНО ЗАБЕЛЕЖАНИ ВНЕСЕНИ ВИДОВИ SPECIET E HUAJA TË REGJISTRUARA ΚΑΤΑΓΕΓΡΑΜΕΝΑ ΞΕΝΑ ΕΙΔΗ<br />

Salmo letnica<br />

LAKE OHRID TROUT<br />

ОХРИДСКА ПАСТРМКА<br />

KORANI<br />

ΠΕΣΤΡΟΦΑ ΤΗΣ ΑΧΡΙΔΑΣ<br />

This is also a fish belonging to the trout<br />

family, but is distinguished as being<br />

endemic to Lake Ohrid. It is a typical<br />

lacustrine (lake) form, living in Lake<br />

Ohrid <strong>and</strong> the surrounding tributaries.<br />

Individuals live up to 25 years. They feed<br />

mainly on zooplankton, benthic animals<br />

<strong>and</strong> small fish. They are restricted to cold<br />

waters <strong>and</strong> spawn from December till<br />

March. Macro Prespa was stocked with<br />

this trout in the late 1950’s <strong>and</strong> early<br />

1960’s. As the habitat was unfavourable,<br />

its population was diminished <strong>and</strong> it is not<br />

present anymore.<br />

Овој в<strong>и</strong>д пр<strong>и</strong>паѓа <strong>на</strong> фам<strong>и</strong>л<strong>и</strong>јата<br />

пастрмк<strong>и</strong> <strong>и</strong> претставува ендем<strong>и</strong>т за<br />

Охр<strong>и</strong>дското Езеро. Тоа е т<strong>и</strong>п<strong>и</strong>чно<br />

езерска форма која што покрај во<br />

Охр<strong>и</strong>дското Езеро ж<strong>и</strong>вее <strong>и</strong> во околн<strong>и</strong>те<br />

пр<strong>и</strong>ток<strong>и</strong>. Инд<strong>и</strong>в<strong>и</strong>ду<strong>и</strong>те ж<strong>и</strong>веат до 25<br />

год<strong>и</strong>н<strong>и</strong>. Се <strong>и</strong>схрануваат главно со<br />

зоопланктон, бентосн<strong>и</strong> ж<strong>и</strong>вотн<strong>и</strong> <strong>и</strong> мал<strong>и</strong><br />

р<strong>и</strong>б<strong>и</strong>. Огран<strong>и</strong>чен<strong>и</strong> се <strong>на</strong> ладн<strong>и</strong> вод<strong>и</strong>, а се<br />

мрестат во пер<strong>и</strong>одот декемвр<strong>и</strong> – март.<br />

Големото Преспанско Езеро беше<br />

пор<strong>и</strong>бено со пастрмка во доцн<strong>и</strong>те<br />

педесетт<strong>и</strong> <strong>и</strong> ран<strong>и</strong>те шеесет<strong>и</strong> год<strong>и</strong>н<strong>и</strong><br />

од м<strong>и</strong><strong>на</strong>т<strong>и</strong>от век. Со оглед <strong>на</strong> тоа што<br />

Преспанското Езеро како ж<strong>и</strong>веал<strong>и</strong>ште<br />

беше неповолно за охр<strong>и</strong>дската<br />

пастрмка, нејз<strong>и</strong><strong>на</strong>та популац<strong>и</strong>ја з<strong>на</strong>чајно<br />

се <strong>на</strong>мал<strong>и</strong>, а сега воопшто не се<br />

среќава.<br />

Ky gjithashtu është një peshk që i takon<br />

familjes së troftës, por shquhet të jetë<br />

tipike e liqenit të Ohrit. Ka një formë<br />

tipike liqenore, duke jetuar në Ohër dhe<br />

në ujërat prurës vjeshtorë nga tributarët,<br />

disa prej tyre jetojnë deri në 25 vjet. Ato<br />

ushqehen kryesisht me zooplankton,<br />

organizma fundor, si dhe peshq të vegjël.<br />

Ato nuk kalojnë tek ujërat e ftohtë dhe<br />

lëshojnë vezët e tyre prej muajit dhjetor<br />

deri në mars.<br />

Prespa e Madhe është mbushur me këtë<br />

troftë në fund të viteve 1950-ta dhe në<br />

fillim të viteve 1960-ta. Meqë habitati nuk<br />

ishte i favorshëm popullata e kësaj specie<br />

po zvogëlohet.<br />

Είναι και αυτό ένα είδος ψαριού που<br />

ανήκει στην Οικογένεια της πέστροφας,<br />

αλλά το συγκεκριμένο είδος ξεχωρίζει από<br />

το ότι είναι ενδημικό της λίμνης Αχρίδας.<br />

Είναι τυπικό λιμναίο είδος, που ζει στη<br />

λίμνη Αχρίδα και τους γύρω ποταμούς. Ζει<br />

έως και 25 έτη και τα΄ρεφεται κυρίως με<br />

ζωοπλαγκτόν, βενθικούς οργανισμούς και<br />

μικρά ψάρια. Προτιμά τα κρύα νερά και<br />

αναπαράγεται από το Δεκέμβριο έως το<br />

Μάρτιο.<br />

Εισήχθηκε στη Μεγάλη Πρέσπα στα<br />

τέλη της δεκαετίας του 1950 με αρχές<br />

της δεκαετίας του 1960, καθώς όμως<br />

οι περιβαλλοντικές συνθήκες δεν ήταν<br />

κατάλληλες, οι πληθυσμοί του είδους<br />

μειώθηκαν και πλέον είναι απών.<br />

137

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