Digital repository of Slovenian research organisations

Show document
A+ | A- | Help | SLO | ENG

Title:The First Substantiated Records of Smoothback Angelshark Squatina oculata (Squatinidae) from the Algerian Coast (Southwestern Mediterranean Sea)
Authors:ID Capapé, Christian (Author)
ID Reynaud, Christian (Author)
ID Hemida, Farid (Author)
Files:.pdf PDF - Presentation file, download (2,04 MB)
MD5: 1786D41700D19BCD4E3ADB9EB516B764
 
URL URL - Source URL, visit https://zdjp.si/annales-series-historia-naturalis-33-2023-2/
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo IRRIS - Institute IRRIS for Research, Development and Strategies of Society, Culture and Environment
Abstract:In this paper, the authors report the captures of three specimens of smoothback angelshark Squatina oculata Bonaparte, 1840 from the eastern region of the Algerian coast. Two of the specimens were males, measuring 1555 mm and 1520 mm in total length (TL) and weighing 25.5 and 21 kg in total body weight (TBW), respectively. The third specimen was a female, measuring 1600 mm in TL and weighing 27 kg. The female exhibited fully yolked oocytes ready to be released from both ovaries. The diameter of 10 of the oocytes was measured, ranging between 58 and 70 mm (mean = 63.2 mm ± 4.8 mm). These findings constitute the first substantiated records of S. oculata in the Algerian ichthyofauna. However, while the occurrence of a viable population in the area cannot be totally ruled out, the species needs a management plan to prevent its drastic decline.
Keywords:Squatina oculata, distribution, viable populations, first record, ovarian fecundity
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2023
Year of publishing:2023
Number of pages:143-150
Numbering:33, 2
PID:20.500.12556/DiRROS-31002 New window
UDC:5
DOI:10.19233/ASHN.2023.18 New window
Copyright:Imetniki avtorskih pravic na prispevkih so avtorji. CC BY-NC 4.0
Publication date in DiRROS:10.07.2026
Views:135
Downloads:105
Metadata:XML DC-XML DC-RDF
:
Copy citation
  
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:Annales: Anali za istrske in mediteranske študije. Series Historia Naturalis
Shortened title:Annales, Series Historia Naturalis
Publisher:Zgodovinsko društvo za južno Primorsko - Koper; Inštitut IRRIS za raziskave, razvoj in strategije družbe, kulture in okolja
ISSN:1408-533X
COBISS.SI-ID:71951360 New window

Licences

License:CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
Link:http://creativecommons.org/licenses/by-nc/4.0/
Description:A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
Licensing start date:01.01.2023
Applies to:VoR

Secondary language

Language:Italian
Title:Prime segnalazioni comprovate di squadro pelle rossa, Squatina oculata (Squatinidae), lungo la costa algerina (Mediterraneo sud-occidentale)
Abstract:In questo articolo gli autori riportano le catture di tre esemplari di squadro pelle rossa, Squatina oculata Bonaparte, 1840, provenienti dalla regione orientale della costa algerina. Due degli esemplari erano maschi, misuravano 1555 mm e 1520 mm di lunghezza totale (TL) e pesavano rispettivamente 25,5 e 21 kg di peso corporeo totale (TBW). Il terzo esemplare era una femmina, misurava 1600 mm in TL e pesava 27 kg. La femmina mostrava ovociti completamente maturi pronti per essere rilasciati da entrambe le ovaie. È stato misurato il diametro di 10 ovociti, compreso tra 58 e 70 mm (media = 63,2 mm ± 4,8 mm). Questi risultati costituiscono le prime testimonianze documentate di S. oculata nell’ittiofauna algerina. Tuttavia, anche se non si può confermare del tutto la presenza di una popolazione vitale nella zona, la specie necessita di un piano di gestione per prevenirne il drastico declino.
Keywords:Squatina oculata, distribuzione, popolazioni vitali, prima segnalazione, fecondità ovarica


Back