@article{fdi:010090735,
  title = {{V}ariability of trophic ecology in two teleost species associated with lagoonal habitats ({G}reat {R}eef of {T}oliara, {SW} {M}adagascar)},
  author = {{R}avelohasina, {H}. {B}. and {R}asolofonirina, {R}. and {J}aonalison, {H}. and {M}ahafina, {J}. and {L}epoint, {G}. and {P}onton, {D}ominique and {F}rederich, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ince the pioneering work in 70 ', relatively few studies looked at the trophic niches of teleost reef fishes in {M}adagascar. {T}he lagoon of {T}oliara ({SW} {M}adagascar) is facing threat from the use of mosquito net trawls, often practiced in seagrass and fringing reef habitats. {T}hese practices have the potential to induce alterations in the ecological dynamics of the species and in their feeding behaviors. {T}he primary objective of this study is to investigate the dietary preferences and their potential interannual and spatial variation in two teleost fish species frequently found in mosquito net trawl: the rabbitfish {S}iganus sutor as juveniles and the goby {O}plopomus oplopomus as adults. {S}ampling was conducted at two distinct sites, {A}nkilibe and {S}arodrano, over a two-year period, in {D}ecember of both 2017 and 2018. {T}he diet composition of these two species was assessed through the examination of their stomach contents and the analysis of stable isotopes (8 13 {C} and 8 15 {N}) from a sample of 40 individuals during each field campaign. {A} total of 22 different food items were identified in the stomach of young {S}. sutor , with seagrass and benthic mobile prey items being predominant. {I}n adult {O}. oplopomus , 21 food items were identified, with a high representation of mobile benthic prey and zooplankton. {A}nalyses of stomach contents and stable isotopes revealed significant variations in diet composition across different years and spatial locations. {I}n addition, the results indicated a significant variation in diet according to the size of the individuals studied. {T}he present study is one of the few documenting trophic variations in reef fishes, highlighting some feeding plasticity which could be highly valuable for a rapid adaptation in changing environments.},
  keywords = {{S}iganidae ; {G}obiidae ; {L}agoon ; {S}tomach contents ; {S}table isotopes ; {T}rophic diversity ; {MADAGASCAR}},
  booktitle = {},
  journal = {{R}egional {S}tudies in {M}arine {S}cience},
  volume = {75},
  numero = {},
  pages = {103563 [12 p.]},
  ISSN = {2352-4855},
  year = {2024},
  DOI = {10.1016/j.rsma.2024.103563},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090735},
}