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Inventarul speciilor non- native de peşti din apele ... - Editura Bioflux

Inventarul speciilor non- native de peşti din apele ... - Editura Bioflux

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Abstract<br />

The aim of this work was to <strong>de</strong>scribe and inventorize all <strong>non</strong>-<strong>native</strong> species of fish in<br />

interior Romania’s freshwaters, whether invasive, potentially invasive, not invazive overall<br />

neutral or beneficial, and to exemplify with some relevant cases the current situation for<br />

un<strong>de</strong>rstan<strong>din</strong>g the principles that governs natural ecosystems, for the prediction of some<br />

phenomena, for preventing <strong>de</strong>gradation of ecosystems and for biodiversity conservation.<br />

Some of the species mentioned in this paper presents a real invasive potential but four<br />

of them are consi<strong>de</strong>red true "weeds" of the freshwater, they are: brown bullhead (Ictalurus<br />

nebulosus), topmouth gudgeon (Pseudorasbora parva), gibel carp (Carassius auratus gibelio)<br />

and pumpkinseed sunfish (Lepomis gibbosus).<br />

The presence of ornamental exotic species in Peţea Lake, such as: the millionfish<br />

(Poecilia reticulata Peters 1859), the swordtail (Xiphophorus helleri Heckel 1848), and<br />

others, could become dangerous over time, affecting Romanian Peţea Reservation (Bihor<br />

County).<br />

Rezumat<br />

Scopul acestei lucrări a fost acela <strong>de</strong> a inventaria şi <strong>de</strong>scrie speciile <strong>non</strong>-<strong>native</strong> <strong>de</strong> <strong>peşti</strong><br />

<strong>din</strong> <strong>apele</strong> dulci/interioare ale României, fie ele invazive, potenţial invazive, neinvazive neutre<br />

sau per ansamblu benefice, şi <strong>de</strong> a exemplifica prin unele cazuri relevante situaţia actuală<br />

pentru înţelegerea legilor care guvernează ecosistemele naturale, pentru predicţia unor<br />

fenomene, pentru prevenirea <strong>de</strong>gradării ecosistemelor şi conservarea biodiversităţii.<br />

Multe <strong>din</strong>tre speciile menţionate în această lucrare prezintă un real potenţial invadator,<br />

însă patru <strong>din</strong>tre ele sunt consi<strong>de</strong>rte a<strong>de</strong>varate “buruieni” ale bazinelor acvatice, acestea fiind:<br />

somnul pitic (Ictalurus nebulosus), murgoiul bălţat (Pseudorasbora parva), carasul<br />

(Carassius auratus gibelio) şi bibanul soare (Lepomis gibbosus).<br />

Prezenţa unor specii ornamentale exotice în Lacul Peţea, cum ar fi: peştele guppy<br />

(Poecilia reticulata Peters, 1859), xipho (Xiphophorus helleri Heckel, 1848) şi altele, ar putea<br />

<strong>de</strong>veni periculoase în timp, afectând Rezervaţia Peţea.<br />

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