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Order BERYCIFORMES ANOPLOGASTRIDAE Fangtooths (Ogrefish) by J.A
click for previous page 1178 Bony Fishes Order BERYCIFORMES ANOPLOGASTRIDAE Fangtooths (ogrefish) by J.A. Moore, Florida Atlantic University, USA iagnostic characters: Small (to about 160 mm standard length) beryciform fishes.Body short, deep, and Dcompressed, tapering to narrow peduncle. Head large (1/3 standard length). Eye smaller than snout length in adults, but larger than snout length in juveniles. Mouth very large and oblique, jaws extend be- hind eye in adults; 1 supramaxilla. Bands of villiform teeth in juveniles are replaced with large fangs on dentary and premaxilla in adults; vomer and palatines toothless. Deep sensory canals separated by ser- rated ridges; very large parietal and preopercular spines in juveniles of one species, all disappearing with age. Gill rakers as clusters of teeth on gill arch in adults (lath-like in juveniles). No true fin spines; single, long-based dorsal fin with 16 to 20 rays; anal fin very short-based with 7 to 9 soft rays; caudal fin emarginate; pectoral fins with 13 to 16 soft rays; pelvic fins with 7 soft rays. Scales small, non-overlapping, spinose, goblet-shaped in adults; lateral line an open groove partially bridged by scales; no enlarged ventral keel scutes. Colour: entirely dark brown or black in adults. Habitat, biology, and fisheries: Meso- to bathypelagic, at depths of 75 to 5 000 m. Carnivores, with juveniles feeding on mainly crustaceans and adults mainly on fishes. May sometimes swim in small groups. Uncommon deep-sea fishes of no commercial importance. Remarks: The family was revised recently by Kotlyar (1986) and contains 1 genus with 2 species throughout the tropical and temperate latitudes. -
Reproductive Strategy of Deep-Sea and Antarctic Octopods of the Genera Graneledone, Adelieledone and Muusoctopus (Mollusca: Cephalopoda)
Vol. 18: 21–29, 2013 AQUATIC BIOLOGY Published online January 23 doi: 10.3354/ab00486 Aquat Biol Reproductive strategy of deep-sea and Antarctic octopods of the genera Graneledone, Adelieledone and Muusoctopus (Mollusca: Cephalopoda) Vladimir Laptikhovsky* Falkland Islands Government Fisheries Department, Stanley FIQQ 1ZZ, Falkland Islands ABSTRACT: Reproductive systems of spent brooding octopodid females of Muusoctopus longi- brachus akambei, Adelieledone polymorpha and Graneledone macrotyla (Eledoninae) were col- lected in Southwest Atlantic and Antarctic waters. Their study demonstrated that the size distribu- tion of post-ovulatory follicles (POF) is mostly unimodal, suggesting that they only lay 1 batch of eggs. These data, together with a reevaluation of the literature, revealed that deep-sea and polar benthic octopods are generally not multiple spawners. Females spawn a single egg mass simulta- neously or as a series of several consequent mini-batches separated by short periods of time, mak- ing it difficult to distinguish them by either size or condition of their POF. Analysis of the length−frequency distribution of POF is a useful tool to reconstruct the spawning history of brood- ing females of cold-water octopods. KEY WORDS: Octopus · Spawning · Post-ovulatory follicle · POF · Reproductive strategy · Deep sea · Antarctic Resale or republication not permitted without written consent of the publisher INTRODUCTION 2008). Growth of ovarian eggs is generally synchro- nous, although in maturing females the oocyte size Most benthic octopods brood a single egg mass, and distribution might be bimodal or polymodal (Kuehl the female dies as the eggs hatch. This egg mass 1988, Laptikhovsky 1999a, 2001, Önsoy & Salman (clutch) might be laid in one bout or in several consec- 2004, Bello 2006, Barratt et al. -
Fisheries Overview, Including Mixed-Fisheries Considerations
ICES Fisheries Overviews Bay of Biscay and Iberian Coast ecoregion Published 30 November 2020 Version 2: 3 December 2020 6.2 Bay of Biscay and Iberian Coast ecoregion – Fisheries overview, including mixed-fisheries considerations Table of contents Executive summary .................................................................................................................................................................. 1 Definition of the ecoregion ...................................................................................................................................................... 1 Mixed-fisheries considerations Bay of Biscay .......................................................................................................................... 2 Mixed-fisheries considerations Iberian waters ...................................................................................................................... 10 Who is fishing ........................................................................................................................................................................ 18 Catches over time .................................................................................................................................................................. 21 Description of the fisheries .................................................................................................................................................... 23 Fisheries management measures ......................................................................................................................................... -
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OPHIDIIFORMES (part 2) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 9.0 - 24 Aug. 2020 Order OPHIDIIFORMES (part 2 of 2) Suborder BYTHITOIDEI Family BYTHITIDAE Viviparous (or Livebearing) Brotulas 34 genera · 125 species · Taxonomic note: includes taxa sometimes placed in Aphyonidae. Acarobythites Machida 2000 acaro, small, referring to its small size (up to 25.2 mm SL); Bythites, type genus of family Acarobythites larsonae Machida 2000 in honor of Helen Larson, Curator of Fishes, Museum and Art Gallery of the Northern Territory (Darwin, Australia), who kindly sent bythitid and ophidiid specimens to Machida for study Anacanthobythites Anderson 2008 an-, not and acanthus, thorn or prickle, referring to lack of developed gill rakers on first branchial arch; Bythites, type genus of family Anacanthobythites platycephalus Anderson 2008 platys, broad; cephalus, head, referring to its depressed head Anacanthobythites tasmaniensis Anderson 2008 -ensis, suffix denoting place: Tasmania, Australia, type locality Aphyonus Günther 1878 aphya, anchovy or small, translucent fish, referring to its transparent, colorless skin; onus, presumably a latinization of onos, a name dating to Aristotle, originally referring to Phycis blennoides (Gadiformes: Gadidae) but often mistakenly applied to Merluccius merluccius (Gadiformes: Merlucciidae) and hence used several times by Günther as a suffix for a hake-like fish Aphyonus gelatinosus Günther 1878 gelatinous or jelly-like, referring to “thin, scaleless, loose” skin, forming -
Larvae and Juveniles of the Deepsea “Whalefishes”
© Copyright Australian Museum, 2001 Records of the Australian Museum (2001) Vol. 53: 407–425. ISSN 0067-1975 Larvae and Juveniles of the Deepsea “Whalefishes” Barbourisia and Rondeletia (Stephanoberyciformes: Barbourisiidae, Rondeletiidae), with Comments on Family Relationships JOHN R. PAXTON,1 G. DAVID JOHNSON2 AND THOMAS TRNSKI1 1 Fish Section, Australian Museum, 6 College Street, Sydney NSW 2010, Australia [email protected] [email protected] 2 Fish Division, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, U.S.A. [email protected] ABSTRACT. Larvae of the deepsea “whalefishes” Barbourisia rufa (11: 3.7–14.1 mm nl/sl) and Rondeletia spp. (9: 3.5–9.7 mm sl) occur at least in the upper 200 m of the open ocean, with some specimens taken in the upper 20 m. Larvae of both families are highly precocious, with identifiable features in each by 3.7 mm. Larval Barbourisia have an elongate fourth pelvic ray with dark pigment basally, notochord flexion occurs between 6.5 and 7.5 mm sl, and by 7.5 mm sl the body is covered with small, non- imbricate scales with a central spine typical of the adult. In Rondeletia notochord flexion occurs at about 3.5 mm sl and the elongate pelvic rays 2–4 are the most strongly pigmented part of the larvae. Cycloid scales (here reported in the family for the first time) are developing by 7 mm; these scales later migrate to form a layer directly over the muscles underneath the dermis. By 7 mm sl there is a unique organ, here termed Tominaga’s organ, separate from and below the nasal rosette, developing anterior to the eye. -
Jan Jansen, Dipl.-Biol
The spatial, temporal and structural distribution of Antarctic seafloor biodiversity by Jan Jansen, Dipl.-Biol. Under the supervision of Craig R. Johnson Nicole A. Hill Piers K. Dunstan and John McKinlay Submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Quantitative Antarctic Science Institute for Marine and Antarctic Studies (IMAS), University of Tasmania May 2019 In loving memory of my dad, whose passion for adventure, sport and all of nature’s life and diversity inspired so many kids, including me, whose positive and generous attitude touched so many people’s lives, and whose love for the ocean has carried over to me. The spatial, temporal and structural distribution of Antarctic seafloor biodiversity by Jan Jansen Abstract Biodiversity is nature’s most valuable resource. The Southern Ocean contains significant levels of marine biodiversity as a result of its isolated history and a combination of exceptional environmental conditions. However, little is known about the spatial and temporal distribution of biodiversity on the Antarctic continental shelf, hindering informed marine spatial planning, policy development underpinning regulation of human activity, and predicting the response of Antarctic marine ecosystems to environmental change. In this thesis, I provide detailed insight into the spatial and temporal distribution of Antarctic benthic macrofaunal and demersal fish biodiversity. Using data from the George V shelf region in East Antarctica, I address some of the main issues currently hindering understanding of the functioning of the Antarctic ecosystem and the distribution of biodiversity at the seafloor. The focus is on spatial biodiversity prediction with particular consideration given to previously unavailable environmental factors that are integral in determining where species are able to live, and the poor relationships often found between species distributions and other environmental factors. -
A Dataset of Deep-Sea Fishes Surveyed by Research Vessels in the Waters Around Taiwan
A peer-reviewed open-access journal ZooKeys 466:A Dataset 103–110 of(2014) Deep-Sea Fishes Surveyed by Research Vessels in the Waters around Taiwan 103 doi: 10.3897/zookeys.466.8523 DATA PAPER http://zookeys.pensoft.net Launched to accelerate biodiversity research A Dataset of Deep-Sea Fishes Surveyed by Research Vessels in the Waters around Taiwan Kwang-Tsao Shao1, Jack Lin1, Hsin-Ming Yeh2, Mao-Yin Lee1, Lee-Sea Chen1, Hen-Wei Lin1 1 Biodiversity Research Center, Academia Sinica, No. 128, Sec. 2, Academia Rd. Nankang Dist., 115, Taipei, TAIWAN 2 Coastal and Offshore Resources Research Center, Fisheries Research Institute, COA, No.6, Yugang N. 3rd Rd., Qianzhen Dist., 806, Kaohsiung City, TAIWAN Corresponding authors: Jack Lin ([email protected]); Hsin-Ming Yeh ([email protected]) Academic editor: L. Penev | Received 29 August 2014 | Accepted 1 December 2014 | Published 19 December 2014 http://zoobank.org/083BACA5-921D-4C9D-8243-5CDC40F66C43 Citation: Shao K-T, Lin J, Yeh H-M, Lee M-Y, Chen L-S, Lin H-W (2014) A Dataset of Deep-Sea Fishes Surveyed by Research Vessels in the Waters around Taiwan. ZooKeys 466: 103–110. doi: 10.3897/zookeys.466.8523 Abstract The study of deep-sea fish fauna is hampered by a lack of data due to the difficulty and high cost incurred in its surveys and collections. Taiwan is situated along the edge of the Eurasia plate, at the junction of three Large Marine Ecosystems or Ecoregions of the East China Sea, South China Sea and the Philippines. As nearly two-thirds of its surrounding marine ecosystems are deep-sea environments, Taiwan is expected to hold a rich diversity of deep-sea fish. -
Diverse Deep-Sea Anglerfishes Share a Genetically Reduced Luminous
RESEARCH ARTICLE Diverse deep-sea anglerfishes share a genetically reduced luminous symbiont that is acquired from the environment Lydia J Baker1*, Lindsay L Freed2, Cole G Easson2,3, Jose V Lopez2, Dante´ Fenolio4, Tracey T Sutton2, Spencer V Nyholm5, Tory A Hendry1* 1Department of Microbiology, Cornell University, New York, United States; 2Halmos College of Natural Sciences and Oceanography, Nova Southeastern University, Fort Lauderdale, United States; 3Department of Biology, Middle Tennessee State University, Murfreesboro, United States; 4Center for Conservation and Research, San Antonio Zoo, San Antonio, United States; 5Department of Molecular and Cell Biology, University of Connecticut, Storrs, United States Abstract Deep-sea anglerfishes are relatively abundant and diverse, but their luminescent bacterial symbionts remain enigmatic. The genomes of two symbiont species have qualities common to vertically transmitted, host-dependent bacteria. However, a number of traits suggest that these symbionts may be environmentally acquired. To determine how anglerfish symbionts are transmitted, we analyzed bacteria-host codivergence across six diverse anglerfish genera. Most of the anglerfish species surveyed shared a common species of symbiont. Only one other symbiont species was found, which had a specific relationship with one anglerfish species, Cryptopsaras couesii. Host and symbiont phylogenies lacked congruence, and there was no statistical support for codivergence broadly. We also recovered symbiont-specific gene sequences from water collected near hosts, suggesting environmental persistence of symbionts. Based on these results we conclude that diverse anglerfishes share symbionts that are acquired from the environment, and *For correspondence: that these bacteria have undergone extreme genome reduction although they are not vertically [email protected] (LJB); transmitted. -
Classes of Fish #1 Agnatha : Jawless Fish 1) Oldest of All Fish 500 Mya 2) No Jaw 3) Eel-Like Body 4) Light Skeleton Made out of Cartilage
Classes of Fish #1 Agnatha : Jawless Fish 1) Oldest of all fish 500 mya 2) No Jaw 3) Eel-like Body 4) Light skeleton made out of cartilage. 5) Gill slits on the side of the body. 6) Unpaired fins 7) Examples: Lamprey and Hagfish Objectives: 1. List the three classes of fish. Draw a simple picture for each class and provide a one sentence description. 2. Describe the purposes associated with the lateral line http://www.flickr.com/photos/boarderjon/294353224/ system and the swim bladder. #2 Chondrichthyes : Cartilagenous fish 1) Stream-lined Body 2) Jaws Formed from a bony gill arch 3) Skeleton made of cartilage strengthened be calcium carbonate. A thin layer of bone covers the cartilage. 4)Teeth: modified scales 5) Some possess a lateral line system 6) Examples: Sharks, Rays, and Skates 1 #3 Osteichthyes : Bony Fish 1) Skeleton made of bone . 2) Lateral Line System : Specialized sensory system that runs along the length of the fish. It accurately indicates the position and rate of movement of the 2 Groups of Bony Fish fish. In addition, it can also detect motion of other 1) Ray-finned fish : Fins supported by living things in the water. It is similar in function to bony rays. hearing. Example: Perch 3) Gill Cover : A hard plate called an operculum covers 2) Lobe-finned fish : Fin is a fleshy lobe and protects the gills. Muscles attached to the supported by bone. operculum allow it to move in order to push water Example: Lungfish through the gills. Fish that do not have operculum must swim in order to breath. -
Updated Checklist of Marine Fishes (Chordata: Craniata) from Portugal and the Proposed Extension of the Portuguese Continental Shelf
European Journal of Taxonomy 73: 1-73 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2014.73 www.europeanjournaloftaxonomy.eu 2014 · Carneiro M. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Monograph urn:lsid:zoobank.org:pub:9A5F217D-8E7B-448A-9CAB-2CCC9CC6F857 Updated checklist of marine fishes (Chordata: Craniata) from Portugal and the proposed extension of the Portuguese continental shelf Miguel CARNEIRO1,5, Rogélia MARTINS2,6, Monica LANDI*,3,7 & Filipe O. COSTA4,8 1,2 DIV-RP (Modelling and Management Fishery Resources Division), Instituto Português do Mar e da Atmosfera, Av. Brasilia 1449-006 Lisboa, Portugal. E-mail: [email protected], [email protected] 3,4 CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. E-mail: [email protected], [email protected] * corresponding author: [email protected] 5 urn:lsid:zoobank.org:author:90A98A50-327E-4648-9DCE-75709C7A2472 6 urn:lsid:zoobank.org:author:1EB6DE00-9E91-407C-B7C4-34F31F29FD88 7 urn:lsid:zoobank.org:author:6D3AC760-77F2-4CFA-B5C7-665CB07F4CEB 8 urn:lsid:zoobank.org:author:48E53CF3-71C8-403C-BECD-10B20B3C15B4 Abstract. The study of the Portuguese marine ichthyofauna has a long historical tradition, rooted back in the 18th Century. Here we present an annotated checklist of the marine fishes from Portuguese waters, including the area encompassed by the proposed extension of the Portuguese continental shelf and the Economic Exclusive Zone (EEZ). The list is based on historical literature records and taxon occurrence data obtained from natural history collections, together with new revisions and occurrences. -
Southward Range Extension of the Goldeye Rockfish, Sebastes
Acta Ichthyologica et Piscatoria 51(2), 2021, 153–158 | DOI 10.3897/aiep.51.68832 Southward range extension of the goldeye rockfish, Sebastes thompsoni (Actinopterygii: Scorpaeniformes: Scorpaenidae), to northern Taiwan Tak-Kei CHOU1, Chi-Ngai TANG2 1 Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan 2 Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan http://zoobank.org/5F8F5772-5989-4FBA-A9D9-B8BD3D9970A6 Corresponding author: Tak-Kei Chou ([email protected]) Academic editor: Ronald Fricke ♦ Received 18 May 2021 ♦ Accepted 7 June 2021 ♦ Published 12 July 2021 Citation: Chou T-K, Tang C-N (2021) Southward range extension of the goldeye rockfish, Sebastes thompsoni (Actinopterygii: Scorpaeniformes: Scorpaenidae), to northern Taiwan. Acta Ichthyologica et Piscatoria 51(2): 153–158. https://doi.org/10.3897/ aiep.51.68832 Abstract The goldeye rockfish,Sebastes thompsoni (Jordan et Hubbs, 1925), is known as a typical cold-water species, occurring from southern Hokkaido to Kagoshima. In the presently reported study, a specimen was collected from the local fishery catch off Keelung, northern Taiwan, which represents the first specimen-based record of the genus in Taiwan. Moreover, the new record ofSebastes thompsoni in Taiwan represented the southernmost distribution of the cold-water genus Sebastes in the Northern Hemisphere. Keywords cold-water fish, DNA barcoding, neighbor-joining, new recorded genus, phylogeny, Sebastes joyneri Introduction On an occasional survey in a local fish market (25°7.77′N, 121°44.47′E), a mature female individual of The rockfish genusSebastes Cuvier, 1829 is the most spe- Sebastes thompsoni (Jordan et Hubbs, 1925) was obtained ciose group of the Scorpaenidae, which comprises about in the local catches, which were caught off Keelung, north- 110 species worldwide (Li et al. -
THE CLASSIFICATION and EVOLUTION of the HETEROSTRACI Since 1858, When Huxley Demonstrated That in the Histological Struc
ACTA PALAEONT OLOGICA POLONICA Vol. VII 1 9 6 2 N os. 1-2 L. BEVERLY TARLO THE CLASSIFICATION AND EVOLUTION OF THE HETEROSTRACI Abstract. - An outline classification is given of the Hetero straci, with diagnoses . of th e following orders and suborders: Astraspidiformes, Eriptychiiformes, Cya thaspidiformes (Cyathaspidida, Poraspidida, Ctenaspidida), Psammosteiformes (Tes seraspidida, Psarnmosteida) , Traquairaspidiformes, Pteraspidiformes (Pte ras pidida, Doryaspidida), Cardipeltiformes and Amphiaspidiformes (Amphiaspidida, Hiber naspidida, Eglonaspidida). It is show n that the various orders fall into four m ain evolutionary lineages ~ cyathaspid, psammosteid, pteraspid and amphiaspid, and these are traced from primitive te ssellated forms. A tentative phylogeny is pro posed and alternatives are discussed. INTRODUCTION Since 1858, when Huxley demonstrated that in the histological struc ture of their dermal bone Cephalaspis and Pteraspis were quite different from one another, it has been recognized that there were two distinct groups of ostracoderms for which Lankester (1868-70) proposed the names Osteostraci and Heterostraci respectively. Although these groups are generally considered to be related to on e another, Lankester belie ved that "the Heterostraci are at present associated with the Osteostraci because they are found in the same beds, because they have, like Cepha laspis, a large head shield, and because there is nothing else with which to associate them". In 1889, Cop e united these two groups in the Ostracodermi which, together with the modern cyclostomes, he placed in the Class Agnatha, and although this proposal was at first opposed by Traquair (1899) and Woodward (1891b), subsequent work has shown that it was correct as both the Osteostraci and the Heterostraci were agnathous.