Psammobatis scobina

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	CHONDRICHTHYES	RAJIFORMES	ARHYNCHOBATIDAE

Scientific Name:

Psammobatis scobina

Species Authority:

(Philippi, 1857)

Common Name/s:

English	–	Raspthorn Sandskate
Spanish	–	Raya Pequén

Assessment Information [top]

Red List Category & Criteria:	Data Deficient ver 3.1
Year Published:	2007
Assessor/s:	Lamilla, J.
Reviewer/s:	Kyne, P.M. & Valenti, S.V. (Shark Red List Authority)
Justification: A small poorly known skate of the continental shelf and upper slope (depths of 40 to 450 m) off Chile from Coquimbo to the Straits of Magellan. Its maximum reported size is 49 cm TL and nothing is known of its biology. Taken as bycatch in benthic trawl fisheries for teleosts (kingclipfish and hake) and for deepsea crustaceans, where it is discarded. Bycatch levels need to be monitored and research undertaken to determine the biology and ecology of the species, in order to assess the species' conservation status beyond Data Deficient.

Geographic Range [top]

Range Description:	Presently known only from the Southeast Pacific off Chile. It possible occurrence in the western part of the Falkland Islands requires examination (J. Pompert pers. comm).
Countries:	Native: Chile Presence uncertain: Falkland Islands (Malvinas)
FAO Marine Fishing Areas:	Native: Pacific – southeast
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Unknown.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	A poorly known sandskate recorded from the continental shelf and upper slope at depths of 40 to 450 m (McEachran 1983). Little information available on the biology or ecology of the species. Reaches 49 cm TL (McEachran 1983) and like other skates is oviparous.
Systems:	Marine

Threats [top]

Major Threat(s):	This species is taken as bycatch in benthic trawl fisheries for kingclipfish Genypterus blacodes and southern hake Merluccius australis. In a benthic trawl fishery cruise off Guafo Island, Chile, approximately 10% of total skates captured were Psammobatis species (P. normani, P. rudis and P. scobina). These were all discarded (J. Lamilla unpub. data). Psammobatis scobina is also taken as negligible component of bycatch in deepsea crustacean trawl fisheries for yellow squat lobster Cervimunida johni and deepsea shrimp Heterocarpus reedi (Acuña and Villarroel 2002).

Major Threat(s):

This species is taken as bycatch in benthic trawl fisheries for kingclipfish Genypterus blacodes and southern hake Merluccius australis. In a benthic trawl fishery cruise off Guafo Island, Chile, approximately 10% of total skates captured were Psammobatis species (P. normani, P. rudis and P. scobina). These were all discarded (J. Lamilla unpub. data). Psammobatis scobina is also taken as negligible component of bycatch in deepsea crustacean trawl fisheries for yellow squat lobster Cervimunida johni and deepsea shrimp Heterocarpus reedi (Acuña and Villarroel 2002).

Conservation Actions [top]

Conservation Actions:	Like many other South American skates, further research is required to ascertain the species' biology, ecology and levels of bycatch.

Conservation Actions:

Like many other South American skates, further research is required to ascertain the species' biology, ecology and levels of bycatch.

Citation:	Lamilla, J. 2007. Psammobatis scobina. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012.
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