Using sagittal otoliths and eye diameter for ecological characterization of deep-sea fish: Aphanopus carbo and A. intermedius from NE Atlantic waters
作者： Víctor Manuel Tuset , Silvia Piretti , Antoni Lombarte , José Antonio González , None
DOI: 10.3989/SCIMAR.2010.74N4807
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摘要: SUMMARY: The sagittal otolith and eye diameter of two sympatric species the genus Aphanopus, A. carbo intermedius, from North Atlantic waters were investigated. study objectives to find morphometric variables otoliths identify relate ecomorphological characters depth distribution each species. are very similar, although significant differences in shape, height weight sulcus acusticus area detected. ratio between cephalic length (ED:CL ratio) was also significantly different. In both analyses obtained higher values, which suggests that intermedius live different spatial niches, inhabits deeper waters. areas (S:O) low compared other fish species, hearing capacity Aphanopus spp. is adapted frequency sound. This adaptation may be related oceanographic conditions these live, particular characteristics sound transmission “SOFAR channel”.
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