FOOD AND FEEDING HABITS OF THE BLACKSPOTTED SMOOTH-HOUND, MUSTELUS PUNCTULATUS (ELASMOBRANCHII: CARCHARHINIFORMES: TRIAKIDAE), FROM THE NORTHERN ADRIATIC

被引:10
|
作者
Lipej, Lovrenc [1 ]
Mavric, Borut [1 ]
Resek, Snezna [2 ]
Cherif, Mourad [3 ]
Capape, Christian [4 ]
机构
[1] Nacl Inst Biol, Marine Biol Stn, Piran 6330, Slovenia
[2] Piran Aquarium, Piran, Slovenia
[3] Inst Natl Sci & Technol Mer, La Goulette 2025, Tunisia
[4] Univ Montpellier 2, Lab Ichtyol, F-34095 Montpellier 5, France
关键词
Elasmobranchii; Triakidae; Mustelus punctulatus; feeding habits; trophic level; northern Adriatic; DIET COMPOSITION; GULF; CHONDRICHTHYES; GABES; RISSO;
D O I
10.3750/AIP2011.41.3.04
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Background. The blackspotted smooth-hound, Mustelus punctulatus Risso, 1826, has been regularly caught in the northern Adriatic Sea, although a decreasing trend in its catches was observed off the coast of Slovenia within the last decade. The knowledge of feeding behaviour of elasmobranch fish species, through understanding of the local food web structure, contributes to better and more efficient fish stock assessment and ecosystem modelling. This study is a first step in determining the prey consumption by the blackspotted smooth-hound in the area. Materials and methods. A total of 151 blackspotted smooth-hounds caught by commercial fishermen in the Gulf of Trieste from 4 June 2002 to 4 June 2003 were examined in this study. The stomach contents were removed, sorted and identified to the lowest possible taxon using identification keys. Preys were counted and weighed. Frequency of occurrence (F%), relative abundance (N%), the percentage by weight (W%), the Index of Relative Importance (IRI), and its standardized value (%IRI) were calculated following standard procedures. For comparing the diet between four different size classes we calculate average prey weight, dietary diversity, average meal, and trophic level for each size class. Results. A total of 130 fish stomachs contained prey items. Crustaceans were the most important prey items (IRI% = 56.14), whereas cephalopods were the second mostly preyed animals (IRI% = 20.2). Teleost fish and bivalves were also found in the stomachs. The most important prey species was Solecurtus strigillatus. Larger sharks consumed larger preys. Male and female sharks consumed similar food. Juvenile individuals consumed predominantly crustaceans, while cephalopods were more important in the diet of adult individuals. The calculated trophic index (TROPH) of M. punctulatus from northern Adriatic Sea was 3.7, showing that it is a highly carnivorous species. Conclusion. This study is a first step in determining prey consumption by Mustelus punctulatus which is, despite the fact that is still common in the area, a rather poorly known species. For elucidating the role of benthic sharks in the study area the further step would be to study the diet of a closely related common smooth-hound M. mustelus.
引用
收藏
页码:171 / 177
页数:7
相关论文
共 17 条
  • [1] Diet composition of blackspotted smooth-hound, Mustelus punctulatus (Risso, 1826), in the eastern Adriatic Sea
    Jardas, I.
    Santic, M.
    Nerlovic, V.
    Pallaoro, A.
    JOURNAL OF APPLIED ICHTHYOLOGY, 2007, 23 (03) : 279 - 281
  • [2] Triloculotrema euzeti n. sp (Monogenea, Monocotylidae) from the nasal tissues of the blackspotted smooth-hound Mustelus punctulatus (Carcharhiniformes, Triakidae) from off Tunisia
    Boudaya, Lobna
    Neifar, Lassad
    PARASITE, 2016, 23
  • [3] Mitochondrial genome of the spotless smooth-hound Mustelus griseus (Carcharhiniformes: Triakidae)
    Chen, Xiao
    Peng, Zaiqing
    Pan, Lianghao
    Shi, Xiaofang
    Cai, Ling
    MITOCHONDRIAL DNA PART A, 2016, 27 (01) : 78 - 79
  • [4] Diet of the smooth-hound, Mustelus mustelus (Chondrichthyes: Triakidae), in the eastern Adriatic Sea
    Jardas, Ivan
    Santic, Mate
    Nerlovic, Vedrana
    Pallaoro, Armin
    CYBIUM, 2007, 31 (04): : 459 - 464
  • [5] Multiple paternity in the starry smooth-hound shark Mustelus asterias (Carcharhiniformes: Triakidae)
    Farrell, Edward D.
    O'Sullivan, Niall
    Sacchi, Carlotta
    Mariani, Stefano
    BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 2014, 111 (01) : 119 - 125
  • [6] Age and growth of the smalleye smooth-hound shark, Mustelus higmani (Carcharhiniformes: Triakidae) from the Venezuelan Caribbean
    Carrillo, Luz
    Tavares, Rafael
    Sanchez, Leonardo
    Velasquez, Carmen
    REVISTA DE BIOLOGIA TROPICAL, 2020, 68 (04) : 1211 - 1220
  • [7] Size of catch, reproduction and feeding of the small-eye smooth-hound, Mustelus higmani (Carcharhiniformes: Triakidae), in Margarita Island, Venezuela
    Tagliafico, Alejandro
    Hernandez-Avila, Ivan
    Rangel, Salome
    Rago, Nestor
    SCIENTIA MARINA, 2015, 79 (04) : 443 - 452
  • [8] Metazoan parasite community as a potential biological indicator in juveniles of the starry smooth-hound Mustelus asterias Cloquet, 1819 (Carcharhiniformes Triakidae)
    Gerard, Claudia
    Herve, Maxime R.
    Hamel, Heloise
    Gay, Melanie
    Barbier, Michel
    Barreau, Thomas
    AQUATIC LIVING RESOURCES, 2022, 35
  • [9] Parasitic copepods of the narrownose smooth-hound shark Mustelus schmitti (Chondrichthyes: Triakidae) from Argentina
    Etchegoin, JA
    Ivanov, VA
    FOLIA PARASITOLOGICA, 1999, 46 (02) : 149 - 153
  • [10] Morphological and molecular differentiation of smooth-hound sharks (Genus Mustelus, Family Triakidae) from the Gulf of California
    Perez-Jimenez, J. C.
    Rocha-Olivares, A.
    Sosa-Nishizaki, O.
    JOURNAL OF APPLIED ICHTHYOLOGY, 2013, 29 (01) : 268 - 270