Evidence of a second nursery area of the sandbar shar, Carcharhinus plumbeus (Nardo, 1827) in the Eastern Mediterranean Sea
| Autor: | Caner Enver Özyurt, Nuri Başusta, Asiye Başusta |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
geography
education.field_of_study Environmental Engineering geography.geographical_feature_category Sandbar shark biology Carcharhinidae Population Endangered species Pelagic zone bycatch Aquatic Science Oceanography biology.organism_classification neonates Yumurtalik Bight Fishery Bycatch Mediterranean sea nursery area Carcharhinus Boncuk cove education Cove Ecology Evolution Behavior and Systematics |
| Zdroj: | Mediterranean Marine Science; Τόμ. 22 Αρ. 1 (2021); 20-26 Mediterranean Marine Science; Vol. 22 No. 1 (2021); 20-26 |
| ISSN: | 1791-6763 1108-393X |
| DOI: | 10.12681/mms.24490 |
| Popis: | The sandbar shark (Carcharhinus plumbeus) is a large coastal species with a cosmopolitan distribution that has been listed as Endangered in the Mediterranean Sea and as Vulnerable for the rest of the world on the IUCN Red List of threatened species. The Gökova's Boncuk Cove in south-western Turkey and the Gulf of Gabès in southern Tunisia are the only known nursery area for the Mediterranean population. On 24 – 27 July 2017, eight specimens, four males and four females, of sandbar sharks were accidentally caught at a depth of 7 to 9 m by a pelagic bluefish longline off the coast of Yumurtalik Bight in the Gulf of Iskenderun. The total length and weight of males and females were 54.5 – 61.0 cm, 930 – 1,484 g and 49.6 – 62.4 cm, 918 – 1,568 g, respectively. They all had unhealed umbilical scars that were still open as a narrow slit, measuring 4.35 and 5.39 mm in lengths. This study thus provides the records of the neonate sandbar sharks from the Yumurtalik Bight. Consequently, this occurrence represents that this area of the north-eastern Mediterranean Sea can be the second breeding and nursery grounds for this species after the Boncuk Cove in Gökova Bay in Turkey. |
| Databáze: | OpenAIRE |
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