Abstract
Apristurus brunneus, A. kampae, and Parmaturus xaniurus were caught by trawl and longline between Washington and southern California (48°N to 32°N latitude) from June 2001 through October 2004. In females, oviducal gland width increased with TL in all three species but remained within 4 to 6% of TL. Oocyte diameter increased with TL during reproductive development in all species, and continued to increase with size after reproductive maturity was reached. The weight-length relationships differed significantly among species but not between sexes of any species from the eastern North Pacific combined. Using logistic regression, it was determined that total length at 50% maturity (TL50) of A. brunneus males was 514 mm TL and all A. brunneus males were mature at 547 mm TL. Female A. brunneus reached TL50 at 501 mm TL and all female A. brunneus were mature at 581 mm TL. Apristurus kampae males and females reached TL50 at approximately 485 mm TL and 490 mm TL, respectively. Parmaturus xaniurus males reached TL50 at 444 mm TL and females at 501 mm TL. Gravid female A. brunneus were found in all months of the year, but gravid P. xaniurus were found primarily June through September. Adult A. kampae females were found only in July through November and there were gravid females in all these months. Based upon gonadosomatic indices, I G, these species may mate within a defined period of time (April through June); however, A. brunneus appear to reproduce throughout the year and P. xaniurus reproduce within a defined season (approximately July through September).
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References
Balart EF, González-Garcia J, Villavicencio-Garayzar C (2000) Notes on the biology of Cephalurus cephalus and Parmaturus xaniurus (Chondrichthyes: Scyliorhinidae) from the west coast of Baja California Sur, México. Fish Bull 98:219–221
Branstetter S (1990) Early life-history implications of selected carcharhinoid and lamnoid sharks of the northwest Atlantic. In: Pratt HL Jr, Gruber SH, Taniuchi T (eds) Elasmobranchs as living resources: Advances in biology, ecology, systematics, and the status of the fisheries. NOAA Tech Rep 90
Bullis HR Jr (1967) Depth segregations and distribution of sex-maturity groups in the marbled catshark, Galeus arae. In: Matherson RF, Gilbert PW, Ralls DP (eds) Sharks, skates, and rays. The Johns Hopkins University Press, Baltimore, MD
Carrassón M, Stefanescu C, Cartes JE (1992) Diets and bathymetric distributions of two bathyal sharks of the Catalan deep sea (western Mediterranean). Mar Ecol Prog Ser 82:1–30
Chen C-T, Liao Y-Y, Joung S-J (1996) Reproduction of the blacktip sawtail catshark, Galeus sauteri, in the waters off northeastern Taiwan. Ichthyol Res 43(3):231–237
Compagno LJV (1984) FAO Species catalogue. Vol. 4, Sharks of the world. An annotated and illustrated catalogue of shark species known to date. FAO Fisheries synopsis No. 125, 4:1655
Compagno LJV (1988) Sharks of the order Carcharhiniformes. Princeton University Press, Princeton
Compagno LJV, Dando M, Fowler S (2005) Sharks of the world. Princeton University Press, Princeton
Cortés E (2000) Life history patterns and correlations in sharks. Rev Fish Sci 8(4):299–344
Craik JCA (1978) An annual cycle of vitellogenesis in the elasmobranch Scyliorhinus canicula. J Mar Biol Assoc UK 58:719–726
Cross JN (1988) Aspects of the biology of two scyliorhinid sharks, Apristurus brunneus and Parmaturus xaniurus, from the upper continental slope off southern California. Fish Bull 86(4):691–702
Dodd JM (1972) Ovarian control in cyclostomes and elasmobranchs. Am Zool 12:325–339
Dodd JM (1983) Reproduction in cartilaginous fishes (Chondrichthyes). In: Hoar WS, Randall DJ, Donaldson EM (eds) Fish Physiology, Vol IXA: Reproduction. Academic Press, New York
Ebert DA (2003) Sharks, rays, and chimaeras of California. University of California Press, Berkeley, CA
Ebert DA (2005) Reproductive biology of skates, Bathyraja (Ishiyama), along the eastern Bering Sea continental slope. J Fish Biol 66:618–649
Ebert DA, Compagno LJV, Cowley PD (2006) Reproductive biology of catsharks (Chondrichthyes: Scyliorhinidae) off the west coast of southern Africa. ICES J Mar Sci 63:1053–1065
Ellis JR, Shackley SE (1997) The reproductive biology of Scyliorhinus canicula in the Bristol Channel, UK. J Fish Biol 51:361–372
Hamlett WC, Koob TJ (1999) Female reproductive system. In: Hamlett WC (ed) Sharks, skates, and rays: the biology of elasmobranch fishes. The Johns Hopkins University Press, Baltimore, MD
Horie T, Tanaka S (2000) Reproduction and food habits of two species of sawtail catsharks, Galeus eastmani and G. nipponensis, in Suruga Bay, Japan. Fish Sci 66: 812–825
Horie T, Tanaka S (2002) Geographic variation of maturity size of the cloudy catshark, Scyliorhinus torazame, in Japan. Memories Faculty Fish Hokkaido Univ 53:111–124
Jones BC, Geen GH (1977) Observations on the brown cat shark, Apristurus brunneus (Gilbert), in British Columbia waters. Syesis 10:169–170
Koob TJ, Callard IP (1999) Reproductive endocrinology of female elasmobranchs: lessons from the little skate (Raja erinacea) and spiny dogfish (Squalus acanthias). J Exp Zool 284:557–574
Leviton AE, Gibbs RH Jr, Heal E, Dawson CE (1985) Standards in herpetology and ichthyology: part 1. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia 1985(3):802–832
Maruska KP, Cowie EG, Tricas TC (1996) Periodic gonadal activity and protracted mating in elasmobranch fishes. J Exp Zool 276:219–232
Parsons GR (1993) Geographic variation in reproduction between two populations of the bonnethead shark, Sphyrna tiburo. Environ Biol Fish 38:25–35
Parsons GR, Grier HJ (1992) Seasonal changes in shark testicular structure and spermatogenesis. J Exp Zool 261:173–184
Richardson AJ, Maharaj G, Compagno LJV, Leslie RW, Ebert DA, Gibbons MJ (2000) Abundance, distribution, morphometrics, reproduction, and diet of the Izark catshark. J Fish Biol 56:552–576
Ricker WE (1979) Growth rates and models. In: Hoar WS, Randall DJ, Brett JR (eds) Fish physiology: bioenergetics and growth, vol VIII. Academic Press, New York
Ricker WE, Merriman D (1945) On the methods of measuring fish. Copeia 1945(4):184–191
Roa R, Ernst B, Tapia F (1999) Estimation of size at sexual maturity: an evaluation of analytical and resampling procedures. Fish Bull 97:570–580
Rogers SI, Ellis JR (2000) Changes in the demersal fish assemblages of British coastal waters during the 20th century. ICES J Mar Sci 57:866–881
Springer S (1966) A review of western Atlantic cat sharks, Scyliorhinidae, with descriptions of a new genus and five new species. Fish Bull 65(3):581–624
Springer S (1979) A revision of the catsharks, family Scyliorhinidae. NOAA Technical Report, NMFS Circular 422, 152 pp
Sumpter JP, Dodd JM (1979) The annual reproductive cycle of the female lesser spotted dogfish, Scyliorhinus canicula L., and its endocrine control. J Fish Biol 15:687–695
Taniuchi T (1988) Aspects of reproduction and food habits of the Japanese swellshark Cephaloscyllium umbratile from Choshi, Japan. Nippon Suisan Gakkaishi 54(4):627–633
Templeman W (1982) Distribution, occurrence, and characteristics of egg capsules of the Thorny skate, Raja radiata, in the Northwest Atlantic. J Northwest Atl Fish Sci 3:47–56
Acknowledgements
All animals were handled ethically in accordance with Institutional Animal Care and Use Committee standards under San Jose State University (SJSU) protocols 801 and 838. Funding for this research was provided by NOAA/NMFS to the National Shark Research Consortium and Pacific Shark Research Center, and in part by the National Sea Grant College Program of the U.S. Department of Commerce’s National Oceanic and Atmospheric Administration under NOAA Grant no. NA04OAR4170038, project number R/F-199, through the California Sea Grant College Program and in part by the California State Resources Agency, SJSU Foundation, American Elasmobranch Society (AES) travel funds, Myers Trust, Packard Foundation, Kim Peppard Memorial Scholarship fund, and SJSU lottery funds. The authors are indebted to the MLML Ichthyology laboratory, especially J.J. Bizzarro and W.D. Smith; B.L. Front; B., C., and T. Cruse; M. Ezcurra, V. Franklin, S. Greenwald (Monterey Bay Aquarium); S. Todd (PSMFC); E.J. Dick, J. Field, A. McCall, D.. Pearson (SWFSC); R.N. Lea (California Department of Fish & Game); the NWFSC FRAM team, especially K. Bosely, E. Fruh, D. Kamikawa, V. Simon, T. Wick; and the crews of the B.J. Thomas, Miss Julie, Excalibur, Blue Horizon, & Captain Jack; for their continued support and assistance in collecting and processing specimens.
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Flammang, B.E., Ebert, D.A. & Cailliet, G.M. Reproductive biology of deep-sea catsharks (Chondrichthyes: Scyliorhinidae) in the eastern North Pacific. Environ Biol Fish 81, 35–49 (2008). https://doi.org/10.1007/s10641-006-9162-9
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DOI: https://doi.org/10.1007/s10641-006-9162-9