Biological parameters, ecology and population trends of the Mediterranean endemic skate, Raja polystigma, in the Balearic Islands

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DOI:

https://doi.org/10.3989/scimar.05234.033

Keywords:

speckled ray, biology, reproduction and condition, diet, fecundity, distribution, population indicators, western Mediterranean

Abstract


Elasmobranchs are a vulnerable group that has been overexploited for almost half a century in the Mediterranean. However, few elasmobranch species have been assessed because information on their basic biological parameters is lacking for most species. Raja polystigma is a poorly studied endemic skate in the Mediterranean. The aim of this work is to determine some basic life history parameters of this skate in the Balearic Islands. Data were collected from commercial catches and during MEDITS surveys. Total length varied from 17 to 59 cm for both sexes, with a higher proportion of females than males. Allometric and morphometric relationships differed between sexes, females being heavier for a given size. Females matured at a larger size than males (L50 47.7 cm and 38.4 cm, respectively). Potential fecundity ranged between 11 and 45 yolked oocytes per female, and spawning was observed mainly during winter and spring. Persistent hotspots of adults and juveniles were detected on the shallow shelf off the northwest of Mallorca and east of Menorca, with adults being found mainly in the shallow and juveniles in deeper areas. Time series of abundance and frequency of appearance showed stable trends throughout the study period (2003-2018).

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References

Barry S. C., Welsh A. H. 2002. Generalized additive modelling and zero inflated count data. Ecol. Modell. 157:179-188. https://doi.org/10.1016/S0304-3800(02)00194-1

Bertrand J.A., Gil de Sola L., Papaconstantinou C., et al. 2002. The general specifications of the MEDITS surveys. Sci. Mar. 74: 9-17. https://doi.org/10.3989/scimar.2002.66s29

Brown-Peterson N.J., Wyanski D.M., Saborido-Rey F., et al. 2011. A Standardized Terminology for Describing Reproductive Development in Fishes. Mar. Coast. Fish. 3: 52-70. https://doi.org/10.1080/19425120.2011.555724

Cannas R., Pasolini P., Mancusi C., et al. 2008. Distribution, molecular systematics and phylogeography of Raja polystigma and Raja montagui in the Mediterraneanean. Biol. Mar. Mediterr. 15: 188-191.

Capapé C., Quignard J.P. 1978. Contribution a la biologie des Rajidae des côtes tunisiennes. XIV - Raja polystigma Regan, 1923. Répartition géographique et bathymétrique, sexualité, reproduction, fécondité. Cah. Biol. Mar. 19: 233-244.

Capapé C., Guélorget O., Vergne Y., et al. 2006. Skates and rays (Chondrichthyes) from waters off the Languedocian coast (southern France, northern Mediterranean): a historical survey and present status. Ann. Ser. Hist. Nat. 16: 165-178.

Carrier J.C., Musick J.A., Heithaus M.R. 2004. Biology of sharks and their relatives. CRC Press. https://doi.org/10.1201/9780203491317

Cartes J.E., Huguet C., Parra S., Sanchez F. 2007. Trophic relationships in deep-water decapods of Le Danois bank (Cantabrian Sea, NE Atlantic): Trends related with depth and seasonal changes in food quality and availability. Deep-Sea Res. I: Oceanogr. Res. Pap. 54: 1091-1110. https://doi.org/10.1016/j.dsr.2007.04.012

Cartes J.E., Mamouridis V., Fanelli E. 2011. Deep-sea suprabenthos assemblages (Crustacea) off the Balearic Islands (western Mediterranean): Mesoscale variability in diversity and production. J. Sea Res. 65: 340-354. https://doi.org/10.1016/j.seares.2011.02.002

Colloca F., Garofalo G., Bitetto I., et al. 2015. The Seascape of Demersal Fish Nursery Areas in the North Mediterranean Sea, a First Step Towards the Implementation of Spatial Planning for Trawl Fisheries. PLoS ONE 10: e0119590. https://doi.org/10.1371/journal.pone.0119590 PMid:25785737 PMCid:PMC4364973

Cortés E. 1997. A critical review of methods of studying fish feeding based on analysis of stomach. Can. J. Fish. Aquat. Sci. 54: 726-738. https://doi.org/10.1139/f96-316

Demestre M., Abelló P. 1993. Growth and distribution of Solenocera membranacea (Risso, 1816) (Decapoda, Dendrobranchiata) in the northwestern Mediterranean Sea. Sci. Mar. 57: 161-166.

Dulvy N.K., Reynolds J.D. 2002. Predicting extinction vulnerability in skates. Conserv. Biol. 16: 440-450. https://doi.org/10.1046/j.1523-1739.2002.00416.x

Dulvy N.K., Fowler S.L., Musick J.A., et al. 2014. Extinction risk and conservation of the world's sharks and rays. Elife 3: e00590. https://doi.org/10.7554/eLife.00590 PMid:24448405 PMCid:PMC3897121

Dulvy N.K., Allen D.J., Ralph G.M., Walls R.H.L. 2016. The conservation status of sharks, rays and chimaeras in the Mediterranean Sea (Brochure). IUCN, Malaga, Spain.

Farriols M.T., Ordines F., Somerfield P.J., et al. 2017. Bottom trawl impacts on Mediterranean demersal fish diversity: Not so obvious or are we too late? Cont. Shelf Res. 137: 84-102. https://doi.org/10.1016/j.csr.2016.11.011

Farriols M.T., Ordines F., Carbonara P., et al. 2019. Spatio-temporal trends in diversity of demersal fish assemblages in the Mediterranean. Sci. Mar. 83S1: 189-206. https://doi.org/10.3989/scimar.04977.13A

Geraci M.L., Ragonese S., Scannella D., et al. 2021. Batoid abundances, spatial distribution, and life history traits in the strait of Sicily (Central Mediterranean Sea): Bridging a knowledge gap through three decades of survey. Animals 11: 2189. https://doi.org/10.3390/ani11082189 PMid:34438646 PMCid:PMC8388512

Follesa M.C., Marongiu M.F., Zupa W., et al. 2019. Spatial variability of Chondrichthyes in the northern Mediterranean. Sci. Mar. 83: 81-100. https://doi.org/10.3989/scimar.04998.23A

Frisk M., Miller T.J., Dulvy, N.K. 2005. Life Histories and Vulnerability to Exploitation of Elasmobranchs: Inferences from Elasticity, Perturbation and Phylogenetic Analyses. J. Northw. Atl. Fish. Sci. 35: 27-45. https://doi.org/10.2960/J.v35.m514

Frodella N., Cannas R., Velonà A., et al. 2016. Population connectivity and phylogeography of the Mediterranean endemic skate Raja polystigma and evidence of its hybridization with the parapatric sibling R. montagui. Mar. Ecol. Prog. Ser. 554: 99-113. https://doi.org/10.3354/meps11799

Guijarro B., Quetglas A., Moranta J., et al. 2012. Inter- and intra-annual trends and status indicators of nektobenthic elasmobranchs off the Balearic Islands (northwestern Mediterranean). Sci. Mar. 76: 87-96. https://doi.org/10.3989/scimar.03432.22A

Jönsson K. I. 1997. Capital and Income Breeding as Alternative Tactics of Resource Use in Reproduction. Oikos 78: 57-66. https://doi.org/10.2307/3545800

Kadri H., Marouani S., Saïdi B., et al. 2014. Age, growth, sexual maturity and reproduction of the thornback ray, Raja clavata (L.), of the Gulf of Gabès (south-central Mediterranean Sea). Mar. Biol. Res. 10: 416-425. https://doi.org/10.1080/17451000.2013.797584

Lawson C.L., Dudgeon C.L., Richardson A.J., et al. 2022. Flexibility for fuelling reproduction in a pelagic ray (Mobula eregoodoo) suggested by bioenergetic modelling. J. Fish Biol. 1-10. https://doi.org/10.1111/jfb.14995 PMid:35049041

Lloret J., Shulman G., Love R.M. 2014. Condition and Health Indicators of Exploited Marine Fishes. John Wiley and Sons, New York, 262 pp. https://doi.org/10.1002/9781118752777

MacDonald P.L., Gardner R.C. 2000. Type I Error Rate Comparisons of Post Hoc Procedures for I j Chi-Square Tables. Educ. Psychol. Meas. 60: 735-754. https://doi.org/10.1177/00131640021970871

Maia C., Erzini K., Serra-Pereira B., Figueiredo I. 2012. Reproductive biology of cuckoo ray Leucoraja naevus. J. Fish. Biol. 81: 1285-1296. https://doi.org/10.1111/j.1095-8649.2012.03412.x PMid:22957870

Massutí E., Moranta J. 2003. Demersal assemblages and depth distribution of elasmobranchs from the continental shelf and slope off the Balearic Islands (western Mediterranean). ICES J. Mar. Sci. 60: 753-766. https://doi.org/10.1016/S1054-3139(03)00089-4

Meléndez M.J., Báez J.C., Serna-Quintero J.M., et al. 2017. Historical and ecological drivers of the spatial pattern of Chondrichthyes species richness in the Mediterranean Sea. PLoS ONE 12: e0175699. https://doi.org/10.1371/journal.pone.0175699 PMid:28406963 PMCid:PMC5391105

Olaso I., Velasco F., Perez N. 1998. Importance of discarded blue whiting (Micromesistius poutassou) in the diet of lesser spotted dogfish (Scyliorhinus canicula) in the Cantabrian Sea. ICES J. Mar. Sci. 55: 331-341. https://doi.org/10.1006/jmsc.1997.0263

Ordines F., Baro J., Ramírez-Amaro S., et al. 2017. First substantiated record of Raja asterias Delaroche, 1809 (Elasmobranchii: Rajiformes: Rajidae) in the Gulf of Cádiz, north-eastern Atlantic. Acta Ichthyol. Piscat. 47: 101-106. https://doi.org/10.3750/AIEP/02161

Orlov A.M., Cotton C.F. 2011. Sexually Dimorphic Morphological Characters in Five North Atlantic Deepwater Skates (Chondrichthyes: Rajiformes). J. Mar. Biol. 1-18. https://doi.org/10.1155/2011/842821

Porcu C., Bellodi A., Cannas R., et al. 2015. Life-history traits of the commercial blonde ray, Raja brachyura, from the central-western Mediterranean Sea. Mediterr. Mar. Sci. 16: 90-102. https://doi.org/10.12681/mms.898

Porcu C., Bellodi A., Cau A., et al. 2020. Uncommon biological patterns of a little known endemic Mediterranean skate, Raja polystigma (Risso, 1810). Reg. Stud. Mar. Sci. 34: 101065. https://doi.org/10.1016/j.rsma.2020.101065

Quetglas A., Merino G., González J., et al. 2016. Regional Implementation Plan for Demersal Fisheries from the Balearic Islands (Western Mediterranean). Technical report in the framework of MYFISH project (Maximising yield of fisheries while balancing ecosystem, economic and social concerns. Grant Agreement No: 289257).

R Core Team. 2018. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Available online at https://www.R-project.org/

Ramírez-Amaro S., Ordines F., Terrasa B., et al. 2015. Demersal chondrichthyans in the western Mediterranean: assemblages and biological parameters of their main species. Mar. Freshw. Res. 67: 636-652. https://doi.org/10.1071/MF15093

Ramírez-Amaro S., Ordines F., Picornell A., et al. 2018. The evolutionary history of Mediterranean Batoidea (Chondrichthyes: Neoselachii). Zool. Scr. 47: 686-698. https://doi.org/10.1111/zsc.12315

Ramírez-Amaro S., Ordines F., Esteban A., et al. 2020. The diversity of recent trends for chondrichthyans in the Mediterranean reflects fishing exploitation and a potential evolutionary pressure towards early maturation. Sci. Rep. 10: 547. https://doi.org/10.1038/s41598-019-56818-9 PMid:31953489 PMCid:PMC6969072

Spedicato M.T., Massutí E., Mérigot B., et al. 2019. The MEDITS trawl survey specifications in an ecosystem approach to fishery management. Sci. Mar. 83S1: 9-20. https://doi.org/10.3989/scimar.04915.11X

Stehmann M., Bürkel D.L. 1984. Rajidae. In: Whitehead P. J. P., Bauchot M. L., Hureau J. C., Nielsen J., Tortonese E. (eds), Fishes of the North-eastern Atlantic and Mediterranean. UNESCO, Paris, pp. 163-196.

Stevens J.D., Bonfil R., Dulvy N.K., Walker P.A. 2000. The effects of fishing on sharks, rays, and chimaeras (chondrichthyans), and the implications for marine ecosystems. ICES J. Mar. Sci. 57: 476-494. https://doi.org/10.1006/jmsc.2000.0724

Tokai T. 1997. Maximum likelihood parameter estimates of a mesh selectivity logistic model through SOLVER on MS-Excel 1997. Bull. Jpn. Soc. Fish. Oceanogr. 61: 288-298.

Tugores M.P., Ordines F., Guijarro B., et al. 2019. Essential fish habitats and hotspots of nekto-benthic diversity and density in the western Mediterranean. Aquat. Conserv.: Mar. Freshw. Ecosyst. 29: 461-471. https://doi.org/10.1002/aqc.3031

Ungaro N., Dulvy N.K., Tinti F., et al. 2015. Raja polystigma. The IUCN Red List of Threatened Species.

Valls M., Quetglas A., Ordines F., Moranta J. 2011. Feeding ecology of demersal elasmobranchs from the shelf and slope off the Balearic Sea (western Mediterranean). Sci. Mar. 75: 633-639. https://doi.org/10.3989/scimar.2011.75n4633

Wheeler A. 1979. Ammodytidae. In: Hureau J. C., Monod T. (eds), Check-list of the fishes of the north-eastern Atlantic and of the Mediterranean (CLOFNAM). UNESCO, pp. 446-448.

Wood S. N. 2011. Fast stable restricted maximum likelihood and marginal likelihood estimation of semiparametric generalized linear models. J. R. Stant. Soc. Ser. B Methodol. 73:3-36. https://doi.org/10.1111/j.1467-9868.2010.00749.x

Worm B., Davis B., Kettemer L., et al. 2013. Global catches, exploitation rates, and rebuilding options for sharks. Mar. Policy. 40: 194-204. https://doi.org/10.1016/j.marpol.2012.12.034

Published

2022-06-15

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1.
Ferragut-Perello F, Valls M, Cortes-Pujol MA, Ramirez-Amaro S, Guijarro B, Ordines F. Biological parameters, ecology and population trends of the Mediterranean endemic skate, Raja polystigma, in the Balearic Islands. Sci. mar. [Internet]. 2022Jun.15 [cited 2024Mar.19];86(2):e033. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1922

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