Redescription of Axine belones Abildgaard, 1794 (Monogenea, Axinidae), a gill parasite of Belone belone (Linnaeus, 1760) (Teleostei, Belonidae) off the Algerian coast, Western Mediterranean - Archive ouverte HAL
Article Dans Une Revue Acta Adriatica Année : 2023

Redescription of Axine belones Abildgaard, 1794 (Monogenea, Axinidae), a gill parasite of Belone belone (Linnaeus, 1760) (Teleostei, Belonidae) off the Algerian coast, Western Mediterranean

Ponovni opis nametnika Axine belones Abildgaard, 1794 (Monogenea, Axinidae), pronađenog na škrgama iglice Belone belone (Linnaeus, 1760) (Teleostei, Belonidae) uz alžirsku obalu u zapadnom Sredozemnom moru

Résumé

Axine belones Abildgaard, 1794 is a polyopisthocotylean monogenean, parasite of belonid fishes, and there are few accounts with morphological and morphometrical data. Here, we redescribe A. belones based on newly collected specimens from its type-host, the garfish Belone belone (Linnaeus, 1760) collected off Algeria, Western Mediterranean, a new locality for this species. Several anatomical and morphological features (genital apertures and clamps sclerites) are described and illustrated. We provide morpho-anatomical and morphometrical data, along with detailed illustrations of A. belones , and we discuss the host specificity of A. belones . Notes on hosts and localities of this species and other congeners are presented, and host specificity patterns of A. belones revealed stenoxenic specificity to Belonidae Bonaparte, 1835, whilst the genus Axine Abildgaard, 1794 seems to be restricted to fishes of the order Beloniformes. Our attempt to investigate morphometric variations between Mediterranean and oceanic specimens revealed that the two populations differed by the number of testes, body length, and clamp dimensions. However, the limited number of measured organs in the various accounts precluded any distinction between the populations. Molecular data for both Mediterranean and oceanic specimens are needed to determine the existence of cryptic species.
Axine belones Abildgaard, 1794 je jednorodni metilj, nametnik na škrgama iglice, o kojem postoji malo radova s morfološkim i morfometrijskim podacima. U ovom radu dajemo ponovni opis vrste A. belones na temelju primjeraka sakupljenih na iglici Belone belone (Linnaeus, 1760), njegovog tipskog domaćina. Primjerci iglica su ulovljeni uz obale Alžira, u zapadnom Sredozemnom moru, što je ujedno i novi lokalitet za ovu vrstu nametnika. Opisano je i ilustrirano nekoliko anatomskih i morfoloških značajki (genitalni otvori i skleriti prijanjaljki). U radu se iznose morfo-anatomski i morfometrijski podatci, zajedno s detaljnim ilustracijama A. belones i raspravlja o specifičnosti domaćina A. belones . Prikazani su i zabilježeni domaćini i lokaliteti nalaza ove vrste i srodnika, a obrasci specifičnosti domaćina kod A. belones ukazali su na stenokseničnu specifičnost prema porodici Belonidae Bonaparte, 1835, dok je rod Axine Abildgaard, 1794 vjerojatno ograničen na ribe reda Beloniformes. Naš pokušaj da istražimo morfometrijske varijacije između sredozemnih i oceanskih jedinki otkrio je da se dvije populacije razlikuju po broju testisa, duljini tijela i dimenzijama prijanjaljki. Međutim, ograničeni broj izmjerenih organa u drugim literaturnim izvorima onemogućio je precizno utvrđivanje razlike između populacija. Postojanje kriptičnih vrsta bi se moglo dokazati korištenjem molekularnih metoda za sredozemne i oceanske uzorke.
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hal-04280358 , version 1 (10-11-2023)

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Chahinez Bouguerche, Jean-Lou Justine, Zouhour El Mouna Ayadi, Fadila Tazerouti. Redescription of Axine belones Abildgaard, 1794 (Monogenea, Axinidae), a gill parasite of Belone belone (Linnaeus, 1760) (Teleostei, Belonidae) off the Algerian coast, Western Mediterranean. Acta Adriatica, 2023, 64 (2), ⟨10.32582/aa.64.2.8⟩. ⟨hal-04280358⟩
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