Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea
Specimens of Mustelus punctulatus were collected between January 2002 and December 2005 from commercial fisheries in the Gulf of Gabès (central Mediterranean Sea). Males and females reached a maximum total length (TL) of 111 and 122 cm respectively. Males matured between 76 and 88.5 cm TL, with a si...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2009-06-01
|
| Series: | Scientia Marina |
| Subjects: | |
| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1058 |
| _version_ | 1818667697311842304 |
|---|---|
| author | Bechir Saïdi Mohamed Nejmeddine Bradaï Abderrahman Bouaïn |
| author_facet | Bechir Saïdi Mohamed Nejmeddine Bradaï Abderrahman Bouaïn |
| author_sort | Bechir Saïdi |
| collection | DOAJ |
| description | Specimens of Mustelus punctulatus were collected between January 2002 and December 2005 from commercial fisheries in the Gulf of Gabès (central Mediterranean Sea). Males and females reached a maximum total length (TL) of 111 and 122 cm respectively. Males matured between 76 and 88.5 cm TL, with a size at maturity (TL50) of 81.4 cm TL. Females matured between 88 and 100 cm TL with a TL50 of 95.6 cm. Females had an annual reproductive cycle. Mating occurred through late-May and June. Ovulation occurred from early July to mid-August with parturition occurring from mid-May to early June, after a gestation period of 11 months. The size at birth was estimated to be 24.5 to 30.5 cm TL. Positive linear relationships were detected between the TL of mature females and ovarian and uterine fecundities. Mustelus punctulatus is an opportunistic predator that consumes a wide range of demersal and benthic prey items. It preys mainly on crustaceans, teleosts and molluscs. Polychaetes, sipunculids, echinoderms and tunicates are also consumed. The species change their main food item as they grow, from crustaceans to teleosts then to molluscs. |
| first_indexed | 2024-12-17T06:24:32Z |
| format | Article |
| id | doaj.art-eb8a8d248d6a47cb856deb8e6a52069b |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-17T06:24:32Z |
| publishDate | 2009-06-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-eb8a8d248d6a47cb856deb8e6a52069b2022-12-21T22:00:20ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342009-06-0173224925810.3989/scimar.2009.73n22491048Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean SeaBechir Saïdi0Mohamed Nejmeddine Bradaï1Abderrahman Bouaïn2Institut National des Sciences et Technologies de la Mer, Centre de SfaxInstitut National des Sciences et Technologies de la Mer, Centre de SfaxFaculté des Sciences de SfaxSpecimens of Mustelus punctulatus were collected between January 2002 and December 2005 from commercial fisheries in the Gulf of Gabès (central Mediterranean Sea). Males and females reached a maximum total length (TL) of 111 and 122 cm respectively. Males matured between 76 and 88.5 cm TL, with a size at maturity (TL50) of 81.4 cm TL. Females matured between 88 and 100 cm TL with a TL50 of 95.6 cm. Females had an annual reproductive cycle. Mating occurred through late-May and June. Ovulation occurred from early July to mid-August with parturition occurring from mid-May to early June, after a gestation period of 11 months. The size at birth was estimated to be 24.5 to 30.5 cm TL. Positive linear relationships were detected between the TL of mature females and ovarian and uterine fecundities. Mustelus punctulatus is an opportunistic predator that consumes a wide range of demersal and benthic prey items. It preys mainly on crustaceans, teleosts and molluscs. Polychaetes, sipunculids, echinoderms and tunicates are also consumed. The species change their main food item as they grow, from crustaceans to teleosts then to molluscs.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1058mustelus punctulatusreproductionfeeding habitselasmobranchsmediterranean |
| spellingShingle | Bechir Saïdi Mohamed Nejmeddine Bradaï Abderrahman Bouaïn Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea Scientia Marina mustelus punctulatus reproduction feeding habits elasmobranchs mediterranean |
| title | Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea |
| title_full | Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea |
| title_fullStr | Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea |
| title_full_unstemmed | Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea |
| title_short | Reproductive biology and diet of Mustelus punctulatus (Risso, 1826) (Chondrichthyes: Triakidae) from the Gulf of Gabès, central Mediterranean Sea |
| title_sort | reproductive biology and diet of mustelus punctulatus risso 1826 chondrichthyes triakidae from the gulf of gabes central mediterranean sea |
| topic | mustelus punctulatus reproduction feeding habits elasmobranchs mediterranean |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1058 |
| work_keys_str_mv | AT bechirsaidi reproductivebiologyanddietofmusteluspunctulatusrisso1826chondrichthyestriakidaefromthegulfofgabescentralmediterraneansea AT mohamednejmeddinebradai reproductivebiologyanddietofmusteluspunctulatusrisso1826chondrichthyestriakidaefromthegulfofgabescentralmediterraneansea AT abderrahmanbouain reproductivebiologyanddietofmusteluspunctulatusrisso1826chondrichthyestriakidaefromthegulfofgabescentralmediterraneansea |