Proceedings of the 40Th U.S.-Japan Aquaculture Panel Symposium
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ABSTRACT LUCKENBACH, JOHN ADAM. Breeding Biotechnology
ABSTRACT LUCKENBACH, JOHN ADAM. Breeding Biotechnology, Sex Determination, and Growth in Southern flounder, Paralichthys lethostigma. (Under the direction of Dr. John Godwin and Dr. Russell J. Borski). Southern flounder (Paralichthys lethostigma) support valuable, but declining US fisheries. This species is therefore a strong candidate for aquaculture to mitigate fishing impacts and stabilize seafood supply. Because female flounder reach substantially larger sizes than males, all-female culture is desirable for commercial aquaculture. Hence, a thorough understanding of sexual development, its timing and regulation by temperature is essential for optimization of flounder aquaculture. To better understand ovarian and testicular development in southern flounder, structural and cellular sex-distinguishing markers were studied using histological methods. We found that histologically discernible sex differentiation occurs in southern flounder at ~75-120 mm TL and that early differentiation is considerably delayed relative to its Japanese congener, P. olivaceus. High (28°C) and low (18°C) water temperatures, produced a higher proportion of males (96% and 78% males, respectively). The sex ratio at a mid-range (23°C) temperature was not different from 1:1. This suggests that southern flounder possess a temperature sensitive mechanism of sex determination. Growth was also affected by temperature with the temperature that maximized females inducing better growth. Aromatase cytochrome P450 (P450arom) is responsible for estrogen biosynthesis and plays a critical role in ovarian differentiation. We cloned ovarian P450arom and developed a qRT-PCR for assessment of early sex differentiation. The deduced amino acid sequence for southern flounder P450arom is very similar to P450arom in other teleosts. Comparison of P450arom intron sequences of southern flounder within and between different populations revealed substantial inter-individual variation that may affect sex determination responses. -
Skeletal Development and Mineralization Pattern of The
e Rese tur arc ul h c & a u D q e A v e f l o o Mesa-Rodríguez et al., J Aquac Res Development 2014, 5:6 l p a m n Journal of Aquaculture r e u n o t DOI: 10.4172/2155-9546.1000266 J ISSN: 2155-9546 Research & Development Research Article OpenOpen Access Access Skeletal Development and Mineralization Pattern of the Vertebral Column, Dorsal, Anal and Caudal Fin Complex in Seriola Rivoliana (Valenciennes, 1833) Larvae Mesa-Rodríguez A*, Hernández-Cruz CM, Socorro JA, Fernández-Palacios H, Izquierdo MS and Roo J Aquaculture Research Group, Science and Technology Park, University of Las Palmas de Gran Canaria, P. O. Box 56, 35200 Telde, Canary Islands, Spain Abstract Bone and fins development in Seriola rivoliana were studied from cleared and stained specimens from 3 to 33 days after hatching. The vertebral column began to mineralize in the neural arches at 4.40 ± 0.14 mm Standard Length (SL), continued with the haemal arches and centrums following a cranial-caudal direction. Mineralization of the caudal fin structures started with the caudal rays by 5.12 ± 0.11 mm SL, at the same time that the notochord flexion occurs. The first dorsal and anal fin structures were the hard spines (S), and lepidotrichium (R) by 8.01 ± 0.26 mm SL. The metamorphosis was completed by 11.82 ± 0.4 mm SL. Finally, the fin supports (pterygiophores) and the caudal fins were completely mineralized by 16.1 ± 0.89 mm SL. In addition, the meristic data of 23 structures were provided. -
Disease List for Aquaculture Health Certificate
Quarantine Standard for Designated Species of Imported/Exported Aquatic Animals [Attached Table] 4. Listed Diseases & Quarantine Standard for Designated Species Listed disease designated species standard Common name Disease Pathogen 1. Epizootic haematopoietic Epizootic Perca fluviatilis Redfin perch necrosis(EHN) haematopoietic Oncorhynchus mykiss Rainbow trout necrosis virus(EHNV) Macquaria australasica Macquarie perch Bidyanus bidyanus Silver perch Gambusia affinis Mosquito fish Galaxias olidus Mountain galaxias Negative Maccullochella peelii Murray cod Salmo salar Atlantic salmon Ameirus melas Black bullhead Esox lucius Pike 2. Spring viraemia of Spring viraemia of Cyprinus carpio Common carp carp, (SVC) carp virus(SVCV) Grass carp, Ctenopharyngodon idella white amur Hypophthalmichthys molitrix Silver carp Hypophthalmichthys nobilis Bighead carp Carassius carassius Crucian carp Carassius auratus Goldfish Tinca tinca Tench Sheatfish, Silurus glanis European catfish, wels Negative Leuciscus idus Orfe Rutilus rutilus Roach Danio rerio Zebrafish Esox lucius Northern pike Poecilia reticulata Guppy Lepomis gibbosus Pumpkinseed Oncorhynchus mykiss Rainbow trout Abramis brama Freshwater bream Notemigonus cysoleucas Golden shiner 3.Viral haemorrhagic Viral haemorrhagic Oncorhynchus spp. Pacific salmon septicaemia(VHS) septicaemia Oncorhynchus mykiss Rainbow trout virus(VHSV) Gadus macrocephalus Pacific cod Aulorhynchus flavidus Tubesnout Cymatogaster aggregata Shiner perch Ammodytes hexapterus Pacific sandlance Merluccius productus Pacific -
Schedule Onlinepdf
Detailed schedule 8:30 Opening session 9:00 Keynote lecture: Impacts of climate change on flatfish populations - patterns of change 100 days to 100 years: Short and long-term responses of flatfish to sea temperature change David Sims 9:30 Nine decades of North Sea sole and plaice distributions Georg H. Engelhard (Engelhard GH, Pinnegar JK, Kell LT, Rijnsdorp AD) 9:50 Climatic effects on recruitment variability in Platichthys flesus and Solea solea: defining perspectives for management. Filipe Martinho (Martinho F, Viegas I, Dolbeth M, Sousa H, Cabral HN, Pardal MA) 10:10 Are flatfish species with southern biogeographic affinities increasing in the Celtic Sea? Christopher Lynam (Lynam C, Harlay X, Gerritsen H, Stokes D) 10:30 Coffee break 11:00 Climate related changes in abundance of non-commercial flatfish species in the North Sea Ralf van Hal (van Hal R, Smits K, Rijnsdorp AD) 11:20 Inter-annual variability of potential spawning habitat of North Sea plaice Christophe Loots (Loots C, Vaz S, Koubii P, Planque B, Coppin F, Verin Y) 11:40 Annual variation in simulated drift patterns of egg/larvae from spawning areas to nursery and its implication for the abundance of age-0 turbot (Psetta maxima) Claus R. Sparrevohn (Sparrevohn CR, Hinrichsen H-H, Rijnsdorp AD) 12:00 Broadscale patterns in population dynamics of juvenile plaice: W Scotland 2001-2008 Michael T. Burrows (Burrows MT, Robb L, Harvey R, Batty RS) 12:20 Impact of global warming on abundance and occurrence of flatfish populations in the Bay of Biscay (France) Olivier Le Pape (Hermant -
Feeding Habits of Juvenile Slime Flounder Microstomus Achne in the Coastal Area of Southern Hokkaido
Title Feeding habits of juvenile slime flounder Microstomus achne in the coastal area of southern Hokkaido Author(s) Nakaya, Mitsuhiro; Abe, Takuzo Ichthyological Research, 58(4), 377-381 Citation https://doi.org/10.1007/s10228-011-0231-5 Issue Date 2011-11 Doc URL http://hdl.handle.net/2115/74191 Rights The final publication is available at link.springer.com Type article (author version) File Information 9_IR58 Nakaya&Abe.pdf Instructions for use Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP Feeding habits of juvenile slime flounder Microstomus achne in the coastal area of southern Hokkaido Mitsuhiro Nakaya · Takuzo Abe M. Nakaya Kakikin Corporation, Akkeshi, Hokkaido 088-1111, Japan T. Abe Faculty of Fisheries, Hokkaido University, Minato, Hakodate, Hokkaido 041-8611, Japan Present address: M. Nakaya (*) Fisheries Research Agency, National Research Institute of Aquaculture, Komame Laboratory, Kochi 788-0302, Japan e-mail: [email protected] Corresponding author: M. Nakaya (*) Fisheries Research Agency, National Research Institute of Aquaculture, Komame Laboratory, Kochi 788-0302, Japan; Tel: +81-880-72-1207; Fax: +81-880-72-1111; e-mail: [email protected] Running title: Feeding habits and growth of juvenile slime flounder Short report 10 text pages, 4 figures, and 1 table 1 Abstract A total of 45 juvenile [30.0–57.4 mm total Length (TL)] slime flounder Microstomus achne were collected in the coastal area of southern Hokkaido from April to July in 2001, and April to June in 2002. Their diets were analyzed. Slime flounder juveniles of 30.0–39.9 mm TL fed predominantly on small crustaceans (gammarid amphipods, harpacticoids and cumaceans), and 40.0–57.4 mm TL on gammarid amphipods, cumaceans and polychaetes. -
Do Some Atlantic Bluefin Tuna Skip Spawning?
SCRS/2006/088 Col. Vol. Sci. Pap. ICCAT, 60(4): 1141-1153 (2007) DO SOME ATLANTIC BLUEFIN TUNA SKIP SPAWNING? David H. Secor1 SUMMARY During the spawning season for Atlantic bluefin tuna, some adults occur outside known spawning centers, suggesting either unknown spawning regions, or fundamental errors in our current understanding of bluefin tuna reproductive schedules. Based upon recent scientific perspectives, skipped spawning (delayed maturation and non-annual spawning) is possibly prevalent in moderately long-lived marine species like bluefin tuna. In principle, skipped spawning represents a trade-off between current and future reproduction. By foregoing reproduction, an individual can incur survival and growth benefits that accrue in deferred reproduction. Across a range of species, skipped reproduction was positively correlated with longevity, but for non-sturgeon species, adults spawned at intervals at least once every two years. A range of types of skipped spawning (constant, younger, older, event skipping; and delays in first maturation) was modeled for the western Atlantic bluefin tuna population to test for their effects on the egg-production-per-recruit biological reference point (stipulated at 20% and 40%). With the exception of extreme delays in maturation, skipped spawning had relatively small effect in depressing fishing mortality (F) threshold values. This was particularly true in comparison to scenarios of a juvenile fishery (ages 4-7), which substantially depressed threshold F values. Indeed, recent F estimates for 1990-2002 western Atlantic bluefin tuna stock assessments were in excess of threshold F values when juvenile size classes were exploited. If western bluefin tuna are currently maturing at an older age than is currently assessed (i.e., 10 v. -
Skin Injuries Contribute to Nocardiosis in Japanese Amberjack Seriola
魚病研究 Fish Pathology, 54 (3), 64–67, 2019. 9 © 2019 The Japanese Society of Fish Pathology Short communication expected, which is currently in experimental conditions (Kato et al., 2014). For the moment, control of this dis- Skin Injuries Contribute to ease largely depends on the culture techniques to avoid infection. Nocardiosis in Japanese It has long been suspected that Japanese amber- Amberjack Seriola quinqueradiata jack (=yellowtail) Seriola quinqueradiata with skin inju- ries are vulnerable to N. seriolae infection (Kusuda and Nakagawa, 1978). Matsuzato (1978) speculated that Yasuyuki Miyoshi1, Yutaka Fukuda2 injuries of the skin and the gills induced by the monoge- 3* and Kazuo Ogawa neans Benedenia seriolae and Heteraxine heterocerca, 1 respectively, can form a portal of entry by N. seriolae. Oita Prefecture Southern Region Bureau, However, no experimental evidence has been presented Oita 876-0813, Japan on the involvement of injuries and monogenean infesta- 2Fisheries Research Division, Oita Prefectural Agriculture, tions in the N. seriolae infection of amberjacks. In this Forestry and Fisheries Research Center, paper, we examined experimentally 1) if physical injuries Oita 879-2602, Japan of the skin induce N. seriolae infection of Japanese 3Meguro Parasitological Museum, amberjack, and 2) how the infestation of B. seriolae, a Tokyo 153-0064, Japan ubiquitous skin parasite among amberjacks cultured in net cages (Ogawa and Shirakashi, 2017), contributes to (Received July 12, 2019) the progression of nocardiosis. ABSTRACT―We examined how mechanical damages to Materials and Methods the skin and the infestation of the monogenean Benedenia Fish used in the experiments seriolae on the skin affected Nocardia seriolae infection in 0-year-old wild-caught seedlings of Japanese Japanese amberjack Seriola quinqueradiata. -
Atlantic Bluefin Tuna (Thunnus Thynnus) Population Dynamics
Environ. Sci. Technol. 2009, 43, 8522–8527 nations of the International Commission for the Conservation Atlantic Bluefin Tuna (Thunnus of Atlantic Tunas (ICCAT) currently manage ABFT fisheries thynnus) Population Dynamics assuming two units (a western stock spawning in the Gulf of Mexico, and an eastern stock which spawns in the Delineated by Organochlorine Mediterranean Sea) ostensibly separated by the 45° W meridian with little intermixing between stocks. However, Tracers tagging studies indicate that bluefin tuna undergo extensive and complex migrations, including trans-Atlantic migrations, ,† and that stock mixing could be as high as 30% (2-4). Extensive REBECCA M. DICKHUT,* - ASHOK D. DESHPANDE,‡ mixing of eastern and western stocks (35 57% bluefin tuna ALESSANDRA CINCINELLI,§ of eastern origin) within the U.S. Mid Atlantic Bight was also 18 MICHELE A. COCHRAN,† reported recently based on otolith δ O values (5). The SIMONETTA CORSOLINI,| uncertainty of stock structures due to mixing makes it difficult RICHARD W. BRILL,† DAVID H. SECOR,⊥ for fisheries managers to assess the effectiveness of rebuilding AND JOHN E. GRAVES† efforts for the dwindling western Atlantic spawning stock of Virginia Institute of Marine Science, Gloucester Point, bluefin tuna. Understanding ABFT spatial distributions and Virginia 23062, National Marine Fisheries Service, dynamics are vital for robust population assessments and Highlands, New Jersey 07732, Department of Chemistry, the design of effective management strategies, and there is University of Florence, 50019 -
Traditional Ecological Knowledge in Andavadoaka, Southwest Madagascar
BLUE VENTURES CONSERVATION REPORT Josephine M. Langley Vezo Knowledge: Traditional Ecological Knowledge in Andavadoaka, southwest Madagascar 52 Avenue Road, London N6 5DR [email protected] Tel: +44 (0) 208 341 9819 Fax: +44 (0) 208 341 4821 BLUE VENTURES CONSERVATION REPORT Andavadoaka, 2006 © Blue Ventures 2006 Copyright in this publication and in all text, data and images contained herein, except as otherwise indicated, rests with Blue Ventures. Recommended citation: Langley, J. (2006). Vezo Knowledge: Traditional Ecological Knowledge in Andavadoaka, southwest Madagascar. BLUE VENTURES CONSERVATION REPORT Summary Many fisheries and marine conservation management (ii) Knowledge of marine resources is passed orally from projects throughout the world have been dogged by generation to generation failure as a result of a lack of acceptance of (iii) Traditional laws, taboos and ceremonies are commonly management interventions by local communities. used in natural resource management Evaluation of these failed studies has produced (iv) Lifestyle, food security and housing are all dependent extensive guidelines, manuals and new fields of study on natural resources and the use of coastal and marine (Bunce and Pomeroy, 2004). Community engagement, resources form an essential part of this participatory research, and promoting the use of local (v) The arrival of the Catholic Mission has reduced the knowledge have repeatedly emerged as steps necessary proportion of villagers adhering to traditional ancestor to address the problem of managing the development of worship people and their economies while simultaneously (vi) There has been a change in recent years from a barter protecting the environment (Berkes et al, 2001; Bunce and subsistence economy to a market-driven cash- based economy and Pomeroy, 2004; Wibera et al, 2004; Scholz et al, (vii) Increased income for some members of the 2004). -
Marine Biodiversity of the South East NRM Region
Marine Environment and Ecology Benthic Ecology Subprogram Marine Biodiversity of the South East NRM Region SARDI Publication No. F2009/000681-1 SARDI Research Report series No. 416 Keith Rowling, Shirley Sorokin, Leonardo Mantilla and David Currie SARDI Aquatic Sciences PO BOX 120 Henley Beach SA 5022 December 2009 Prepared for the Department for Environment and Heritage 1 Information Systems and Database Support Program Marine Biodiversity of the South East NRM Region Keith Rowling, Shirley Sorokin, Leonardo Mantilla and David Currie December 2009 SARDI Publication No. F2009/000681-1 SARDI Research Report Series No. 416 Prepared for the Department for Environment and Heritage 2 This Publication may be cited as: Rowling, K.P., Sorokin, S.J., Mantilla, L. & Currie, D.R.. (2009) Marine Biodiversity of the South East NRM Region. South Australian Research and Development Institute (Aquatic Sciences), Adelaide. SARDI Publication No. F2009/000681-1. South Australian Research and Development Institute SARDI Aquatic Sciences 2 Hamra Avenue West Beach SA 5024 Telephone: (08) 8207 5400 Facsimile: (08) 8207 5406 http://www.sardi.sa.gov.au DISCLAIMER The authors warrant that they have taken all reasonable care in producing this report. The report has been through the SARDI internal review process, and has been formally approved for release by the Chief of Division. Although all reasonable efforts have been made to ensure quality, SARDI does not warrant that the information in this report is free from errors or omissions. SARDI does not accept any liability for the contents of this report or for any consequences arising from its use or any reliance placed upon it. -
IATTC-94-01 the Tuna Fishery, Stocks, and Ecosystem in the Eastern
INTER-AMERICAN TROPICAL TUNA COMMISSION 94TH MEETING Bilbao, Spain 22-26 July 2019 DOCUMENT IATTC-94-01 REPORT ON THE TUNA FISHERY, STOCKS, AND ECOSYSTEM IN THE EASTERN PACIFIC OCEAN IN 2018 A. The fishery for tunas and billfishes in the eastern Pacific Ocean ....................................................... 3 B. Yellowfin tuna ................................................................................................................................... 50 C. Skipjack tuna ..................................................................................................................................... 58 D. Bigeye tuna ........................................................................................................................................ 64 E. Pacific bluefin tuna ............................................................................................................................ 72 F. Albacore tuna .................................................................................................................................... 76 G. Swordfish ........................................................................................................................................... 82 H. Blue marlin ........................................................................................................................................ 85 I. Striped marlin .................................................................................................................................... 86 J. Sailfish -
Notice Calling for Suggestions, Views, Comments Etc from WTO- SPS Committee Members Within a Period of 60 Days on the Draft Noti
Notice Calling for suggestions, views, comments etc from WTO- SPS Committee members within a period of 60 days on the draft notification related to Standards for list of Histamine Forming Fish Species and limits of Histamine level for Fish and Fishery Products. 1. In the Food Safety and Standards (Contaminants, toxins and Residues) Regulations, 2011, in regulation 2.5, relating to “Other Contaminants”, after sub-regulation 2.5.1 the following sub-regulation shall be inserted, namely:- “2.5.2 Histamine in Fish and Fishery Products contaminants, Toxins and Residues 1. Fish species having potential to cause histamine poisoning Sl.No. Family Scientific Name Common Name 1. Carangidae Alectis indica Indian Threadfish Alepes spp. Scad Atropus atropos Cleftbelly trevally Carangoides Yellow Jack bartholomaei Carangoides spp. Trevally Caranx crysos Blue runner Caranx spp. Jack/Trevally Decapterus koheru Koheru Decapterus russelli Indian scad Decapterus spp. Scad Elagatis bipinnulata Rainbow Runner Megalaspis cordyla Horse Mackerel/Torpedo Scad Nematistius pectoralis Roosterfish Oligoplites saurus Leather Jacket Pseudocaranx dentex White trevally Sl.No. Family Scientific Name Common Name Scomberoides Talang queenfish commersonnianus Scomberoides spp. Leather Jacket/Queen Fish Selene spp. Moonfish Seriola dumerili Greater/Japanese Amberjack or Rudder Fish Seriola lalandi Yellowtail Amberjack Seriola quinqueradiata Japanese Amberjack Seriola rivoliana Longfin Yellowtail Seriola spp. Amberjack or Yellowtail Trachurus capensis Cape Horse Mackerel Trachurus japonicas Japanese Jack Mackerel Trachurus murphyi Chilean Jack Mackerel Trachurus Yellowtail Horse Mackerel novaezelandiae Trachurus spp. Jack Mackerel/Horse Mackerel Trachurus trachurus Atlantic Horse Mackerel Uraspis secunda Cottonmouth jack 2. Chanidae Chanos chanos Milkfish 3. Clupeidae Alosa pseudoharengus Alewife Alosa spp. Herring Amblygaster sirm Spotted Sardinella Anodontostoma chacunda Chacunda gizzard shad Brevoortia patronus Gulf Menhaden Brevoortia spp.