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Reproduction in aquarium of nursehound, Scyliorhinus stellaris (Linnaeus 1758) and juveniles husbandry.

Authors:
Primo Micarelli at Centro Studi Squali - Sharks Studies Centre - Scientific Institute
Primo Micarelli
  • Centro Studi Squali - Sharks Studies Centre - Scientific Institute
S. SPINETTI
S. SPINETTI
S. SPINETTI
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Abstract

Scyliorhinus stellaris (Linnaeus 1758) is a shark of the Scyliorhinidae family, close to the Scyliorhinus canicula (Linnaeus 1758), species frequently hosted in public aquaria. Recently Mediterranean sharks experts are investigating about the loss of fishing captures in this sea bassin for scyliorhinidae (Dr.Serena pers.com). Not many data about natural life are available concerning this species of shark. In 2003 a pregnant specimen of Scyliorhinus stellaris, 90cm long, was transferred to the Argentario Mediterranean Aquarium and placed, in a 20.000l tank. Some juveniles born on 2004 and 2005 were transferred in the laboratory in order to study, tag and let them free on 2006. Collect data about their need in term of feeding and growing in captivity during the first life years, could be useful for a mediterranean program of tagging and repopulation with conservative proposal for the nursery sites.
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... The capacity for resilience of this species is affected by a low level of interconnectivity between isolated populations around islands far from the continental coast. Little information is available on its biology (Micarelli et al., 2006(Micarelli et al., , 2007(Micarelli et al., , 2016; however, we know that it is a large bodied species and it is likely more vulnerable to population depletion than the Smallspotted Catshark (Scyliorhinus canicula), which also occurs in this region. Given its large size, patchy distribution and evidence of decline in the Mediterranean Sea, an assessment of at least Near Threatened is warranted (IUCN Red List, 2009). ...
Preliminary data about nursery survey of Nursehound, Scyliorhinus stellaris (Linnaeus, 1758), around the peninsula of Monte Argentario (Tuscany, Italy) using a new tool: Poseidon R.O.V. (Remote Operative Vehicle)
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  • Jul 2021
The Nursehound, Scyliorhinus stellaris (Linnaeus, 1758), is a benthic catshark distributed in the Northeast and Eastern central Atlantic and throughout the Mediterranean. In the Mediterranean, the available data on exploitation is limited, while sharks’ decline has been indicated. In 2018 a new project was activated to locate, around the Monte Argentario Peninsula in Tuscany (Italy), the presence of Nursehound Nurseries using a new tool, Poseidon R.O.V. (Remote Operative Vehicle). The project, partially funded by the Tuscany Region (Go Green 2018), will allow it to identify egg-spawning areas. The f irst 3 years of observations, from 2018 to 2020, are presented here.
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