Planktonic larvae as indicators of additional species in the Callianassoid (Crustacea: Decapoda: Thalassindea) fauna of the Canary Islands

              Rev. Acad. Canar. Cienc, XII (Nums. 3-4), 45-48 (2000) (publicado en Julio de 2001)
PLANKTONIC LARVAE AS INDICATORS OF ADDITIONAL SPE
CIES IN THE CALLIANASSOID (CRUSTACEA: DECAPODA:
THALASSINIDEA) FAUNA OF THE CANARY ISLANDS.
J. A. Lindley * , F. Hernandez** & E. Tejera**
* Sir Alister Hardy Foundation for Ocean Science. The Laboratory. Citadel Hill. Plymouth (United Kingdom).
** Departamento de Biologia Marina. Museo de Ciencias Naturales de Tenerife (OAM). Apartado correos 853;
38003 Santa Cruz de Tenerife (Canarias)
RESUMEN
El presente trabajo es continuation del estudio de larvas de Callianassoidea, presen-tes
en las colecciones de Decapodos del Museo de Ciencias Naturales de Tenerife, que pro-ceden
de arrastres de profundidad llevados a cabo durante los proyectos de investigation
que sobre fauna pelagica el Museo llevo a cabo en las Islas Canarias en la decada de los
noventa (1990-1996). Los Crustaceos Callianassoidea son conocidos como "gambas duen-des"
y de adultos viven vinculados a fondos arenoso-fangosos. Los estados larvarios de
muchas de las especies del area no se han descrito por lo que, a partir de estas colecciones,
se espera realizar nuevas descripciones de larvas y ampliar la relation de especies presentes
en la zona de muestreo.
Palabras clave: Plancton, Islas Canarias, Decapodos, Callianassoidea, larvas.
ABSTRACT
In this work we continue a study of the Callianassoid larvae from the Tenerife
Natural Sciences Museum Crustacea Decapoda collections. These collections result from
sampling in deep Atlantic waters during the cruises around Canary Islands (1990-1996). The
species of Callianassoidea are Crustacea named as "ghost-shrimps'" and when adults they
burrow into soft (sandy and muddy) bottom. The larval stages of many species in these areas
are undescribed and it is to be expected that new descriptions can be made from this col-lection,
in some cases indicating the presence of adults of species not yet recorded from the
sampling area.
Key words: Plankton, Canary Islands, Decapoda, Callianassoid, larvae.
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1. INTRODUCTION
Decapods from plankton samples taken in 1990-1996 off the Canary Islands (TFM-CBM/
Canarias Project) by the Natural Sciences Museum of Tenerife were examined. Some
results very interesting of this collection in relation to new descriptions of species for the
area have been previously presented by HERNANDEZ & TIEFENBACHER [3], LIND-LEY
& HERNANDEZ [4], [5] and [6]
GONZALEZ PEREZ [2] catalogued the Decapod Crustacea of the Canary Islands
and UDEKEM D'ACOZ [9] summarised records of Decapoda in the North Atlantic from
25 °N northwards.
The only species of Callianassoidea recorded from the Canary Islands by these
authors is Callianassa tyrrhena (Petagna, 1792). However four types of zoea attributed to
the Callianassoidea have been found in the collection of the Tenerife Natural Sciences
Museum including the type described by LINDLEY & HERNANDEZ [4].
None of these conform to the descriptions of larvae of Callianassa tyrrhena.
2. MATERIAL AND METHODS
Decapods were captured in hauls plankton taken during 1990 to 1996 off the Canary
Islands in the TFMCBM/Canarias Project, supported by the MAO. The hauls were vertical
(A=200-0m, M=400-0m, B=500-0m, K=800-0m, C=1000-0m), all diurnal (D) and noctur-nal
(N) with identical sampling method (WP-2 triple net, 200 u) in the stations near the coast
(see table I).
Table I.- Position of the sampling stations in the Canary Islands.
ISLAND STATION COORDINATES
Tenerife TFMCBM000001 28° 01' 06" N& 16° 45' 18" W
El Hierro TFMCBM000002 27° 38' 54" N& 18° 02' 54" W
La Gomera TFMCBM000003 27° 58' 00" N& 17° 13'00"W |
La Palma TFMCBM000004 28° 40' 47" N& 18° 01' 01" W
Gran Canada TFMCBM000005 27° 44' 14" N& 15° 50' 03" W
Fuerteventura TFMCBM000006 28° 00' 24" N& 14° 21' 45" W
Lanzarote TFMCBM000007 28° 49' 02" N& 13° 56' 01" W
3. CONCLUSIONS
3.1.- Zoea larvae from the Canary Islands attributed to the Callianassoidea.
Necallianassa truncata (Giard & Bonnier, 1890) was identified in a sample with
code number 5B 94D (500-0 open haul, diurnal, off SW Gran Canada Island, September
1994). This species is known from the Atlantic Coast of Morocco and a zoea attributed to
this species on the basis of the description in DOS SANTOS [1].
A zoea identical with Callianassidae SL 16 (DOS SANTOS [1]) was taken in a code
sample 6A/90 (200-0 m open haul, diurnal, off SW of Tenerife Island, June 1990).
Two types of zoea attributed to the larval genus Oodeopus Bate, 1888 were found in
the samples listed below. There was the type described by LINDLEY & HERNANDEZ [4].
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The stage described in that paper and a later stage with pleopod buds and an almost parallel
sided telson were present in the samples. The other type of Oodeopus was very similar type
but with terminal spines on the telson of equal length except for a longer and more robust
median spine in contrast with the irregular length of the terminal spines of the specimen des-cribed
by LINDLEY & HERNANDEZ [4].
3.1.1.- Samples in which Oodeopus larvae were recorded:-
TFMCBM7A/90D = 200-0 open haul, diurnal, off SW Tenerife Island, July 1990.
TFMCBM7B/90D= 500-0 open haul, diurnal, off SW Tenerife Island, July 1990.
TFMCBM 8A/90D= 200-0 open haul, diurnal, off SW Tenerife Island, August 1990.
TFMCBM 8B/90D= 500-0 open haul, diurnal, off SW Tenerife Island, August 1990,
TFMCBM 17B/91N= 500-0 open haul, nocturnal, off SW El Hierro Island, September
1991.
TFMCBM 22K92D= 800-0 open haul, diurnal, off SW La Gomera Island, September 1992.
TFMCBM 7A/93D= 200-0 open haul, diurnal, off SW La Palma Island, September 1993.
TFMCBM 7C/93D= 1000-0 open haul, diurnal, off SW La Palma Island, September 1993.
TFMCBM 9A/93D= 200-0 open haul, diurnal, off SW La Palma Island, September 1993.
TFMCBM 9C/93D= 1000-0 open haul, diurnal, off SW La Palma Island, September 1993.
TFMCBM 10C93D= 1000-0 open haul, diurnal, off SW La Palma Island, September 1993.
TFMCBM 7C 95D= 1000-0 open haul, diurnal, off SW Fuerteventura Island, September
1995.
TFMCBM 19M96D= 400-0 open haul, diurnal, off SW Lanzarote Island, September 1996.
3. 2. -Distributions of Callianassoidea in relation to possible occurrence in the
Canary Islands.
Apart from Callianassa tyrrhena and Necallianassa truncata it must be assumed that
there must be at least three other species occurring in the Canary Islands.
These are most likely to be species already known from the eastern North Atlantic.
UDEKEM D'ACOZ [9] list Callipagurops charcoti de Saint Laurent, 1973 from the Azores
and Callianassa Candida (Olivi, 1792) from south-west Spain. SAINT LAURENT &
LOEUFF [7] state that Callichirus adamus (Kensley, 1974) and Callichirus balssi (Monod,
1933) occur on the coasts of Mauritania. In recent taxonomic revisions some genera for-merly
included in the Callianassidae have been placed in other families within the
Superfamily Callianassoidea (TUDGE et al. [8]).Two species that must be considered to be
potential parents of the unidentified zoeas are Gourretia denticulata Liitze (1937) and
Paracalliax bollorei de Saint Laurent, 1979 both of which are now placed in the Family
Ctenochelidae Manning and Felder, 1991. The former is known from south-west Spain
(UDEKEM D'ACOZ, [9]) and the latter from Mauritania SAINT LAURENT & LOEUFF
[7].
4. ACKNOWLEDGEMENTS
Special mention to our colleagues in all cruises, Dr. Sebastian Jimenez, Mr. Pedro
Ortega and Mr. Pedro Gonzalez and the Pelagic Biodiversity Group of the Marine Biology
Department (Tenerife Natural Sciences Museum).
5. LITERATURE
[1] DOS SANTOS, A. 1999. Larvas de Crustdceos Decdpodes ao largo da costa
Portuguesa. Tes Faculdade Ciencia da Universidade Lisboa. 278 pp.
47
[2] GONZALEZ PEREZ, J.A. 1995. Crustdceos Decdpodos de las Islas Canarias.
Publicaciones Turquesa. 1-282.
[3] HERNANDEZ, F. & L. TIEFENBACHER. 1999. The presence of Eryoneicus puritanii
in waters off the Canary Islands (Decapoda, Repatantia, Polychelydae). Bocagiana
(195): 1-5.
[4] LINDLEY, J.A. & F. HERNANDEZ. 1999 a. A previously undescribed Callianassid
larva from the collections of the Natural Sciences Museum of Tenerife. Rev. Acad.
Canar. Cienc, XI (3-4): 105-11
1
[5] LINDLEY, J.A. & F. HERNANDEZ. 1999 b. The occurrence in waters around the
Canary and Cape Verde Islands of Amphionides reynaudii, the sole species of the
order Amphionidacea (Crustacea: Eucarida). Rev. Acad. Canar. Cienc, XI (3-4): 113-
119.
[6] LINDLEY, J.A. & F. HERNANDEZ. 2000. A previously undescribed zoea attributed to
Calcinus talismani (Crustacea: Decapoda: Diogenidae). Bocagiana (201): 1-5.
[7] SAINT LAURENT, M. DE & LE LOEUFF. 1979. Decapod Crustacea: Thalassinidea. 1.
Upogebiidae and Callianassidae. Ann. Inst. Oceanogr. Paris. 55 (suppl.) 29-101.
[8] TUDGE, C.C.,G.C.B. POORE & R. LEMAITRE. 2000. Preliminary phylogenetic analy-sis
of generic relationships within the Callianassidae and Ctenochelidae. (Decapoda:
Thalassinidea: Callianassoidea). J. Crustac. Biol. 20. Special Number 2, 129-156.
[9] UDEKEM D'ACOZ, C. D'. 1999. Inventaire et distribution des Crustaces Decapodes de
1' Atlantique nord-orientale, de la Mediterranee et des eaux continentales adjacent au
nord de 25°N. Patrimoines naturels (MNHN/SPN) 40, 383pp.
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