Insights into the distribution and ecology of Hexanchus Griseus in the Cantabrian Sea (NE Atlantic)
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1
Spanish Institute of Oceanography (IEO), Ecology and Fisheries, Spain
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2
Spanish Institute of Oceanography (IEO), Spain
The sixgill shark Hexanchus griseus (Bonaterre, 1788) is a relatively common widespread deepwater shark that occurs along the outer continental shelf and upper slope. However, very little information exists about their distribution patterns, migrations and behavior. This paper summarizes all the information collected in north of Spain waters (Galicia and Cantabrian Sea, NE Atlantic) from different surveys carried out in this area. Most of the specimens were caught in Galician waters and nearly all of them were juveniles (less than 2 years old). Besides, data obtained from and electronic pop-up tag (MiniPAT) fixed during 75 days on one shark, provided information about depth and temperature preferences. Mean depth was 913 m ± 76.3 (depth range 727.5 -1247.0 m) and mean temperature was 10.3 ºC ± 0.2 (range 8.0-10.8 ºC). Vertical movements were done smoothly and data analysis suggests a periodicity in diel vertical migration.
Keywords:
Hexanchus griseus,
distribution,
Behavior,
Biology,
Cantabrian Sea
Conference:
XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016.
Presentation Type:
Oral Presentation
Topic:
1. ECOLOGY, BIODIVERSITY AND VULNERABLE ECOSYSTEMS
Citation:
Rodríguez-Cabello
C,
Rodríguez
A,
Delgado
FS and
González-pola
C
(2016). Insights into the distribution and ecology of Hexanchus Griseus in the Cantabrian Sea (NE Atlantic)
.
Front. Mar. Sci.
Conference Abstract:
XIX Iberian Symposium on Marine Biology Studies.
doi: 10.3389/conf.FMARS.2016.05.00082
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Received:
13 May 2016;
Published Online:
02 Sep 2016.
*
Correspondence:
Dr. Cristina Rodríguez-Cabello, Spanish Institute of Oceanography (IEO), Ecology and Fisheries, Santander, Cantabria, 39004, Spain, c.cabello@st.ieo.es