DOCSLIB.ORG

Species Profile: Bay Scallop, Argopecten Irradians

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Species Profile: Bay Scallop, Argopecten Irradians Argopecten irradians Adult 2cm (from Goode 1884) Common Name: bay scallop Recreational: Bay scallops are sometimes collected Scientific Name: Argopecten irradians by hand picking while wading in seagrass beds. In Other Common Names: Atlantic bay scallop, peigne Florida waters of the Gulf of Mexico, recreational baie de /'At/antique (French), peine caletero atlantico harvest is common from Steinhatchee north and west {Spanish) (Fischer 1978). to Panama City (Arnold pers. comm.). However, Classification (Turgeon et al. 1988) recreational harvest elsewhere in the Gulf of Mexico is Phylum: Mollusca not especially common because of the bay scallop's Class: Bivalvia relatively low abundance. In Florida, the recreational Order: Ostreoida seasons extends from July 1 to September 10, from Family: Pectinidae Suwannee River southward (Arnold pers. comm.). The bag limit is two gallons of whole bay scallops in the Value shell, or one pint of meat, per day per person, or ten Commercial: Bay scallops are harvested commer­ gallons of whole scallops per day per boat (Arnold pers. cially by dredging, dip netting, raking, and hand picking comm.). In Texas, they may be taken year-round in {Peters 1978). Reported U.S. 1992 bay scallop land­ waters approved by the Texas Department of Health. ings were161.5 metric tons (mt), with a dollar value of $2.1 million (NMFS 1993). This an important commer­ Indicator of Environmental Stress: Filler feeders such cial species along the U.S. Atlantic coast, with fisheries as bay scallops often ingest and accumulate resus­ in Massachusetts, Rhode Island, New York, North pended detritus and organic matter from polluted ar­ Carolina, and the Gulf coast of Florida (Heffernan et al. eas. This species has been used to test the effects of 1988, MacKenzie 1989, Rhodes 1991). Landings for pollutants from the petroleum industry (Hamilton et al. 1992 totaled 58.5 mt in the Gulf of Mexico (Newlin 1981 ). Mortality of juvenile bay scallops has been 1993). However, the commercial scallop fishery in demonstrated in the laboratory in the presence of Florida has been closed since 1995 (Arnold pers. heavy metals (Nelson et al. 1976). comm.). There is no apparent commercial fishery for this species in the remaining Gulf coastal states be­ Ecological: The bay scallop is an important part of the cause of their relatively low abundance, but their high estuarine food web through its conversion of phy­ value and the available market has sparked consider­ toplankton and detritus into available biomass for sec­ able interest in maricultural production (Hall 1984, ond order consumers. Rhodes 1991 ). There are few commercial scallop mariculture ventures currently in operation, but hatch­ Range ery technology is well developed and research is in Overall: The range of this species extends along the progress (Hall 1984, Crenshaw et al. 1991, Rhodes western Atlantic from Cape Cod into the Gulfof Mexico, 1991, Walker et al. 1991 ). and down to Colombia (Turner and Hanks 1960, Sastry 1962, Fischer 1978, Peters 1978, Robert 1978, Faye! al. 1983). Areas of abundance as determined from 13 Bay scallop, continued commercial landings are coastal areas of Massachu­ Table 5.01. Relative abundance of bay scallop in 31 setts, Rhode Island, New York, North Carolina, and the Gulf of Mexico estuaries (from Volume /). gulf coast of Florida (Heffernan et al. 1988, Rhodes ,esaae 1991 ). Estuarv A s J L E In the United States, Argopecten irradlans is consid­ Florida Bay ✓ ✓ ✓ ✓ ✓ ered to include three subspecies: A. i. irradians, rang­ Ten Thousand Islands ✓ ✓ ✓ ✓ ✓ ing from Cape Cod to New Jersey; A. i. concentricus, New Jersey to the Chandeleur Islands, east of the Caloosahatchee River ✓ ✓ ✓ ✓ ✓ Mississippi River; and A. i. amplicostatus, Galveston Charlotte Harbor ✓ ✓ ✓ ✓ ✓ Bay to Tuxapan, Veracruz, Mexico (Andrews 1981, Tampa Bay ✓ ✓ ✓ ✓ ✓ Fay et al. 1983). Suwannee River Within Study Area: Along the Florida Gulf coast, bay Apalachee Bay 0 0 0 0 0 scallops are most abundant from Pepperfish Keys, south of Steinhatchee, north and westward to St. Apalachicola Bay ✓ ✓ ✓ ✓ ✓ Andrew Bay (Arnold pers. comm.). Populations are St. Andrew Bay 0 0 0 0 0 scattered in the northwestern Gulf, but become more Choctawhatchee Bay common In the western Gulf. In Texas, the bay scallop is most abundant in bays of the southern coast where Pensacola Bay ✓ ✓ ✓ ✓ ✓ the salinities are generally higher and seagrass mead­ Perdido Bay ows are extensive. The subspecies Argopecten Mobile Bay irradians concentricus ranges from Key West, Florida to the Chandeleur Islands of Louisiana (Broom 1976). Mississippi Sound 0 0 0 0 0 Argopecten irradians amp/icostatus ranges from Lake Borgne Galveston, Texas to the Laguna Madre (Broom 1976, Lake Pontchartrain Andrews 1981) (Table 5.01). Breton/Chandeleur Sounds ✓ ✓ ✓ ✓ ✓ Life Mode Mississippi River Fertilized eggs are demersal (Belding 1910). Early Barataria Bay larval stages are pelagic and planktonic. Late larval stages are epibenthic. Juveniles up to 20-30 mm in Terrebonneffimbalier Bays length attach to a surface suspended off the bottom by Atchafalaya/Verrnilion Bays byssal threads (Sastry 1965). Adults and juveniles >30 Calcasieu Lake mm in length are epibenthic, sometimes motile, and gregarious (Belding 191 O, Gutsell 1930, Marshall 1947, Sabine Lake Sastry 1962, Robert 1978, Peters 1978, Fonseca et al. Galveston Bay ✓ ✓ ✓ ✓ ✓ 1984). Brazos River Habitat Matagorda Bay ✓ ✓ ✓ ✓ ✓ Type:All life stages are estuarine, and marine in San Antonio Bay ✓ ✓ ✓ ✓ ✓ nearshore waters, occurring in high salinity (euhaline to polyhaline) waters. Bay scallops are typically sub­ Aransas Bay ✓ ✓ ✓ ✓ ✓ tidal, but may be exposed during especially low tides Corpus Christi Bay ✓ ✓ ✓ ✓ ✓ (Rhodes 1991). Collections have been recorded at Laguna Madre ✓ ✓ ✓ ✓ ✓ depths from Oto 10 m and a maximum of 18 m. They are most abundant in waters from 0.3 to 0.6 m at low Baffin Bay tide (Marshall 1960, Sastry 1962, Thayer and Stuart A s J L E 1974, Peters 1978, Robert 1978, Fay et al. 1983, Fonseca et al. 1984). Larvae inhabit the water column Relative abundance: Life stage: while searching for a settlement site (Sastry 1965). At Highly abundant A· Adults settlement the young scallop attaches epifaunally to a Abundant S - Spawning adults surface suspended off the bottom (rock, seagrass, algae, rope) by means of byssal threads (Belding 0 Common J - Juveniles 1910). At 20 to 30 mm in length the juvenile scallop ✓ Rare L - Larvae settles to the bottom, beginning a demersal existence blank Not present E • Eggs that continues through the adult stage (Castagna 1975). 14 Bay scallop, continued Substrate: Late larval/early juvenile stages use vari­ salinities on scallop behavior indicated that at salinities ous substrates for attachment, including oyster shells, of 16%0 and temperatures of 1 0° to 15°C the animals rope, algae, seagrass, and submerged macrophytes became inactive, and at 20° to 25°C reduced activity (Gutsell 1930, Marshall 1947, Marshall 1960, Thayer occurredat22%oand 18%o(Duggan 1973). Mortality of and Stuart 1974, Fay et al. 1983). Seagrasses, such scallops has been demonstrated in the laboratory at as eel grass (Zostera marina) and shoal grass (Halodule salinities of 10%o and less over a range of temperatures wrightit), appear to be the preferred settling site given (Mercaldo and Rhodes 1982). the abundance that is often associated with seagrass habitats (Belding 191 o, Gutsell 1930, Sastry 1962, Dissolved Oxygen: Oxygen resting requirements of 70 Thayer and Stuart 1974, Castiglione pers. comm.). ml/kg/hour at 20° have been reported (Van Dam 1954). However, if seagrass density is too great, current Critical dissolved oxygen (DO) concentrations for this velocity is reduced and bay scallop abundance may species may be related to individual size and ambient decline (MacKenzie 1989). Scallops can settle and water temperature (Voyer 1992). survive in areas lacking seagrass (Marshall 1947, Marshall 1960), but individuals <10 mm generally Other: Turbidities greater than 500 ppm may interfere cannot tolerate silty substrates (Castagna 1975), and with normal growth and reproduction (Fay et al. 1983). burial can occur in muddy substrates (Tettelbach et al. Water currents can displace scallops from their"home" 1990). Smith et al. (1988) have demonstrated that habitat, and current velocity can have effects on growth transplanted seagrass does not serve as a highest related to food availability (Moore and Marshall 1967, quality habitat, due to greater losses from predation Kirby-Smith 1972, Rhodes 1991 ). An optimal amount and/or transport as compared to a natural seagrass of current is necessary to maintain high concentrations site. of suspended food and remove waste materials rapidly (Kirby-Smith 1972). Physical/Chemical Characteristics: Temperature: Eggs and larvae are stenothermal, with Movements and Migrations: Egg and early larval 15 to 20°c required for early development. Optimal stages may be transported by tidal currents. Late larval embryonic development occurs from 20 to 25° and stages are capable of swimming by use of the ciliated best larval growth from 25 to 30°C (T ettlebach and velum and crawling with the foot (Gutsell 1930, Sastry Rhodes 1981 ). Wright et al. (1983, 1984) found larvae 1965, Hall 1984). Juvenile and adult scallops are subjected to temperatures below the spawning tem­ capable of swimming via propulsion created by the perature experienced a cold-shock which resulted in clapping of the two valves (Belding 1910, Gutsell 1930, higher mortalities. Juveniles and adults are euryther­ Moore and Marshall 1967). This ability apparently mal, and Connecticut bay scallops are reportedly able serves to maintain position in grassbeds and avoid to tolerate temperatures as low as -6.6°C for short competitors and predators (Peterson et al. 1982, Win­ periods (Marshall 1960). Throughout their range they ter and Hamilton 1985). The extent of late juvenile and occur in areas where summer maximum water tem­ adult movements is unclear. There are, however, peratures do not exceed 32°C (Sastry 1965, Barber some reports of scallops migrating in mass (Roessler and Blake 1983}.
Load more

Recommended publications
  • “Concha De Abanico” , Es Un Bivalvo Pectinido Que Habita En El Pacifico
    IX EPRODUCCION DE ARGOPECTEN PURPURATUS Argopecten purpuratus “Concha de abanico” , es un bivalvo pectinido que habita en el Pacifico suroriental a lo largo de la costa del Perú y Chile, su distribucion abarca desde Paita Perú (5ºS) hasta Valparaiso, Chile (33ºS). – esta especie vive , en las aguas costera entre los 5 a 30 m de profundidad, (Cantillanez, 2000) su clasificacion taxonomica es la uiente: Phylum : Molusca Clase : Bivalva Sub-clase : Lamenlinobranchia Orden : Filibranchia Super familia : Pectinacea Familia : Pectinadae Genero : Chlamys Especie : Argopecten purpuratus. 1HABITAT: En el Perú existen numerosos bancos naturales de esta especie, tales como los de Bahía de Sechura y lobos de Tierra en Piura , Bahía de los Chimús y el Dorado en Chimbote , Bahía de Guaynuna en Casma y Bahía de Independencia y Paracas en Pisco. Se encuentran en aguas costeras entre 3 a 30 m, con fondos variables; fondo blando , arena endurecida, de conchuela con algas y cascajo, las Conchas de abanico vive normalmente en bahías protegidas del oleaje a temperatura entre 14 a 20ºC. esta especie requiere de agua bien oxigenada y con una salinidad de 34.4 a 34.9 por mil incluyendo este parámetro en el desarrollo, alimentación y reproducción. Esta especie tiene dos valvas en forma orbicular , siendo una de ellas mas convexa que la otra ,las valvas presentan expansiones laterales denominadas orejas que poseen además de 23 a 25 estrías y presentan anillos de crecimiento representado por líneas concéntricas. Esta especie es Hermafrodita, es decir posee los dos sexos masculino y femenino en una misma especie , pero funcionalmente son insuficientes ,siendo la producción de gametos (óvulos y espermatozoides ) en forma alternada, su ciclo reproductivo es continuo.
    [Show full text]
  • §4-71-6.5 LIST of CONDITIONALLY APPROVED ANIMALS November
    §4-71-6.5 LIST OF CONDITIONALLY APPROVED ANIMALS November 28, 2006 SCIENTIFIC NAME COMMON NAME INVERTEBRATES PHYLUM Annelida CLASS Oligochaeta ORDER Plesiopora FAMILY Tubificidae Tubifex (all species in genus) worm, tubifex PHYLUM Arthropoda CLASS Crustacea ORDER Anostraca FAMILY Artemiidae Artemia (all species in genus) shrimp, brine ORDER Cladocera FAMILY Daphnidae Daphnia (all species in genus) flea, water ORDER Decapoda FAMILY Atelecyclidae Erimacrus isenbeckii crab, horsehair FAMILY Cancridae Cancer antennarius crab, California rock Cancer anthonyi crab, yellowstone Cancer borealis crab, Jonah Cancer magister crab, dungeness Cancer productus crab, rock (red) FAMILY Geryonidae Geryon affinis crab, golden FAMILY Lithodidae Paralithodes camtschatica crab, Alaskan king FAMILY Majidae Chionocetes bairdi crab, snow Chionocetes opilio crab, snow 1 CONDITIONAL ANIMAL LIST §4-71-6.5 SCIENTIFIC NAME COMMON NAME Chionocetes tanneri crab, snow FAMILY Nephropidae Homarus (all species in genus) lobster, true FAMILY Palaemonidae Macrobrachium lar shrimp, freshwater Macrobrachium rosenbergi prawn, giant long-legged FAMILY Palinuridae Jasus (all species in genus) crayfish, saltwater; lobster Panulirus argus lobster, Atlantic spiny Panulirus longipes femoristriga crayfish, saltwater Panulirus pencillatus lobster, spiny FAMILY Portunidae Callinectes sapidus crab, blue Scylla serrata crab, Samoan; serrate, swimming FAMILY Raninidae Ranina ranina crab, spanner; red frog, Hawaiian CLASS Insecta ORDER Coleoptera FAMILY Tenebrionidae Tenebrio molitor mealworm,
    [Show full text]
  • Argopecten Irradians*
    MARINE ECOLOGY PROGRESS SERIES I Vol. 74: 47-59, 1991 Published July 18 Mar. Ecol. Prog. Ser. The eelgrass canopy: an above-bottom refuge from benthic predators for juvenile bay scallops Argopecten irradians* David G.Pohle, V. Monica Bricelj8*,Zaul Garcia-Esquivel Marine Sciences Research Center, State University of New York, Stony Brook, New York 11794-5000, USA ABSTRACT: Juvenile bay scallops Argopecten irradians commonly attach to shoots of eelgrass Zostera marina using byssal threads. Although this behavior has long been recognized, its adaptive value is poorly understood. This study examined (1) the size-specif~cnature of scallop attachment on eelgrass, and (2) the possible role of vertical attachment in providing refuge from benthic predators. Laboratory experiments using artificial eelgrass showed strong, inverse relationships between scallop size (over the range 6 to 20 mm) and several measures of attachment performance (percent attachment, rate of attachment, and height-above-bottom attained). Field experiments in which 10 to 15 mm scallops were tethered to natural eelgrass in Lake Montauk, Long Island, New York (USA), demonstrated a dramatic, highly significant enhancement of scallop survival at greater heights of attachment. Scallops tethered at 20 to 35 cm above bottom experienced > 59 O/O survival over 4 d, compared to < l1 O/O sunrival near the sediment surface. A similar pattern was observed in laboratory tethering experiments using trans- planted natural eelgrass and 3 crab predators common in mid-Atlantic embayments: Carcinus maenas, Libinia dubia, and Dyspanopeus sayi. The refuge value of vertical attachment was found, however, to be less with D. sayi than with the other predators tested, since individuals of ths species climbed eelgrass to feed on scallops in the upper canopy.
    [Show full text]
  • Physiological Effects and Biotransformation of Paralytic
    PHYSIOLOGICAL EFFECTS AND BIOTRANSFORMATION OF PARALYTIC SHELLFISH TOXINS IN NEW ZEALAND MARINE BIVALVES ______________________________________________________________ A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy in Environmental Sciences in the University of Canterbury by Andrea M. Contreras 2010 Abstract Although there are no authenticated records of human illness due to PSP in New Zealand, nationwide phytoplankton and shellfish toxicity monitoring programmes have revealed that the incidence of PSP contamination and the occurrence of the toxic Alexandrium species are more common than previously realised (Mackenzie et al., 2004). A full understanding of the mechanism of uptake, accumulation and toxin dynamics of bivalves feeding on toxic algae is fundamental for improving future regulations in the shellfish toxicity monitoring program across the country. This thesis examines the effects of toxic dinoflagellates and PSP toxins on the physiology and behaviour of bivalve molluscs. This focus arose because these aspects have not been widely studied before in New Zealand. The basic hypothesis tested was that bivalve molluscs differ in their ability to metabolise PSP toxins produced by Alexandrium tamarense and are able to transform toxins and may have special mechanisms to avoid toxin uptake. To test this hypothesis, different physiological/behavioural experiments and quantification of PSP toxins in bivalves tissues were carried out on mussels ( Perna canaliculus ), clams ( Paphies donacina and Dosinia anus ), scallops ( Pecten novaezelandiae ) and oysters ( Ostrea chilensis ) from the South Island of New Zealand. Measurements of clearance rate were used to test the sensitivity of the bivalves to PSP toxins. Other studies that involved intoxication and detoxification periods were carried out on three species of bivalves ( P.
    [Show full text]
  • The Immune Response of the Scallop Argopecten Purpuratus Is Associated with Changes in the Host Microbiota Structure and Diversity T
    Fish and Shellfish Immunology 91 (2019) 241–250 Contents lists available at ScienceDirect Fish and Shellfish Immunology journal homepage: www.elsevier.com/locate/fsi Full length article The immune response of the scallop Argopecten purpuratus is associated with changes in the host microbiota structure and diversity T K. Muñoza, P. Flores-Herreraa, A.T. Gonçalvesb, C. Rojasc, C. Yáñezc, L. Mercadoa, K. Brokordtd, ∗ P. Schmitta, a Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile b Laboratorio de Biotecnología y Genómica Acuícola – Centro Interdisciplinario para la Investigación Acuícola (INCAR), Universidad de Concepción, Concepción, Chile c Laboratorio de Microbiología, Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile d Laboratory of Marine Physiology and Genetics (FIGEMA), Centro de Estudios Avanzados en Zonas Áridas (CEAZA) and Universidad Católica del Norte, Coquimbo, Chile ARTICLE INFO ABSTRACT Keywords: All organisms live in close association with a variety of microorganisms called microbiota. Furthermore, several 16S rDNA deep amplicon sequencing studies support a fundamental role of the microbiota on the host health and homeostasis. In this context, the aim Host-microbiota interactions of this work was to determine the structure and diversity of the microbiota associated with the scallop Argopecten Scallop purpuratus, and to assess changes in community composition and diversity during the host immune response. To Innate immune response do this, adult scallops were immune challenged and sampled after 24 and 48 h. Activation of the immune Antimicrobial effectors response was established by transcript overexpression of several scallop immune response genes in hemocytes and gills, and confirmed by protein detection of the antimicrobial peptide big defensin in gills of Vibrio-injected scallops at 24 h post-challenge.
    [Show full text]
  • This Is Not a Citeable Document
    This Meeting was Cancelled. THIS IS NOT A CITEABLE DOCUMENT NATIONAL SHELLFISHERIES ASSOCIATION Program and Abstracts of the 112th Annual Meeting March 29 – April 2, 2020 Baltimore, Maryland NSA 112th ANNUAL MEETING 1DWLRQDO6KHOO¿VKHULHV$VVRFLDWLRQ 7KH&URZQH3OD]D%DOWLPRUH,QQHU+DUERU+RWHO%$/7,025(0$5</$1' 0DUFK±$SULO 681'$<0$5&+ 6:30 PM 678'(1725,(17$7,21 DO NOT &DUUROO CITE 7:00 PM 35(6,'(17¶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
    [Show full text]
  • Mitochondrial Genome of the Peruvian Scallop Argopecten Purpuratus (Bivalvia: Pectinidae)
    Title Mitochondrial genome of the Peruvian scallop Argopecten purpuratus (Bivalvia: Pectinidae) Author(s) Marín, Alan; Alfaro, Rubén; Fujimoto, Takafumi; Arai, Katsutoshi Mitochondrial DNA, 26(5), 726-727 Citation https://doi.org/10.3109/19401736.2013.845760 Issue Date 2015 Doc URL http://hdl.handle.net/2115/60439 Type article (author version) File Information ManuscriptHUSCAP.pdf Instructions for use Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP Argopecten purpuratus mitogenome 1 Mitochondrial genome of the Peruvian scallop Argopecten 2 purpuratus (Bivalvia: Pectinidae) 3 4 Alan Marín1* • Rubén Alfaro2 • Takafumi Fujimoto1 • Katsutoshi Arai1 5 1Hokkaido University, Graduate School of Fisheries Sciences, Hakodate, Hokkaido, 6 Japan, 2 Biodes Laboratorios Soluciones Integrales S.C.R.L, Tumbes, Peru. 7 8 9 10 11 12 13 14 Correspondence: A. Marín. Hokkaido University, Graduate School of Fisheries 15 Sciences, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan. Tel. +81(90)6444 16 1955; fax: +81 138(40) 5537. E-mail: [email protected] 17 18 19 20 21 Keywords Control region, bivalve, coding region, gene arrangement 22 23 24 25 26 27 28 29 30 1 Argopecten purpuratus mitogenome 31 Abstract 32 The mitochondrial genome of the Peruvian scallop Argopecten purpuratus was 33 determined. The length of the mitochondrial coding region is 15,608 bp. A typical 34 bivalve mitochondrial composition was detected with 12 protein-coding genes, 35 two ribosomal RNA genes, and 21 transfer RNA genes, with the absence of the 36 atp8 gene. Fifty percent of the protein-coding genes use typical ATG start codon, 37 whereas five genes utilize ATA as their start codon.
    [Show full text]
  • Draft Genome of the Peruvian Scallop Argopecten Purpuratus
    GigaScience, 7, 2018, 1–6 doi: 10.1093/gigascience/giy031 Advance Access Publication Date: 2 April 2018 Data Note DATA NOTE Draft genome of the Peruvian scallop Argopecten Downloaded from https://academic.oup.com/gigascience/article/7/4/giy031/4958978 by guest on 29 September 2021 purpuratus Chao Li1, Xiao Liu2,BoLiu1, Bin Ma3, Fengqiao Liu1, Guilong Liu1, Qiong Shi4 and Chunde Wang 1,* 1Marine Science and Engineering College, Qingdao Agricultural University, Qingdao 266109, China, 2Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China, 3Qingdao Oceanwide BioTech Co., Ltd., Qingdao 266101, China and 4Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China *Correspondence address. Chunde Wang, Marine Science and Engineering College, Qingdao Agricultural University, Qingdao 266109, China. Tel: +8613589227997; E-mail: [email protected] http://orcid.org/0000-0002-6931-7394 Abstract Background: The Peruvian scallop, Argopecten purpuratus, is mainly cultured in southern Chile and Peru was introduced into China in the last century. Unlike other Argopecten scallops, the Peruvian scallop normally has a long life span of up to 7 to 10 years. Therefore, researchers have been using it to develop hybrid vigor. Here, we performed whole genome sequencing, assembly, and gene annotation of the Peruvian scallop, with an important aim to develop genomic resources for genetic breeding in scallops. Findings: A total of 463.19-Gb raw DNA reads were sequenced. A draft genome assembly of 724.78 Mb was generated (accounting for 81.87% of the estimated genome size of 885.29 Mb), with a contig N50 size of 80.11 kb and a scaffold N50 size of 1.02 Mb.
    [Show full text]
  • (Mollusca: Bivalvia). 3
    BASTERIA, 49: 81-84,1975 Notes material of the Pectinidae on type family (Mollusca: Bivalvia). 3. On the identity of Pecten solidulus Reeve, 1853, and Pecten commutatus Monterosato, 1875 H.P. Wagner c/o Rijksmuseum van Natuurlijke Historie, Postbus 9517, 2300 RA Leiden The identity of Pecten solidulus Reeve, 1853, a species from an unknown locality, has always been subject to debate. As type species of Argopecten Monterosato, 1889, by Monterosato himself the of the subsequent designation by (1899: 193), identity genus is connected with the identity of the species. Initially Monterosato (1889: 20) relegated his Pecten which he describedin the of solidulus. This commutatus, 1875, to synonymy P. synonymy was regarded as erroneous by Dautzenberg & Fischer (1906: 59). Grau has (1959: 93) regarded P. commutatus as type species for the genus Argopecten, because in his opinion P. solidulus was unidentifiable.Keen (1960: 101) has pointed out that he did so incorrectly. Clarke (1965: 174) has used the name Plagioctenium Dall, 1898 (type species by original designation: Pecten ventricosus Sowerby, 1842 = Pecten circularis Sowerby, 1835), instead of Argopecten, for a group of American Pectinidae, maintaining that the type species of Argopecten is not identifiable. Waller (1969: 33) has considered P. solidulus more likely to be Argopecten circularis rather than A. gibbus (L., 1758), these last two species being most similarto P. solidulus. based his conclusion He on measurements taken from photographs of the holotype of P. solidulus, comparing them with equally sized A. circularis and A. gibbus. Hertlein (1969: N356) supported Waller's opinion, meanwhile treating Argopecten as a subgenus of Waller considered and also doubted Chlamys.
    [Show full text]
  • Maturation of the Calico Scallop, Argopecten Gibbus, Determined by Ovarian Color Changes George C
    Northeast Gulf Science Volume 3 Article 5 Number 2 Number 2 12-1979 Maturation of the Calico Scallop, Argopecten gibbus, Determined by Ovarian Color Changes George C. Miller National Marine Fisheries Service Donald M. Allen National Marine Fisheries Service T.J. Costello National Marine Fisheries Service J. Harold Hudson U.S. Geological Survey DOI: 10.18785/negs.0302.05 Follow this and additional works at: https://aquila.usm.edu/goms Recommended Citation Miller, G. C., D. M. Allen, T. Costello and J. Hudson. 1979. Maturation of the Calico Scallop, Argopecten gibbus, Determined by Ovarian Color Changes. Northeast Gulf Science 3 (2). Retrieved from https://aquila.usm.edu/goms/vol3/iss2/5 This Article is brought to you for free and open access by The Aquila Digital Community. It has been accepted for inclusion in Gulf of Mexico Science by an authorized editor of The Aquila Digital Community. For more information, please contact [email protected]. Miller et al.: Maturation of the Calico Scallop, Argopecten gibbus, Determined b Northeast Gulf Sciences Vol. 3, No.2, p. 96-103 December 1979 MATURATION OF THE CALICO SCALLOP, Argopecten gibbus, DETERMINED BY OVARIAN COLOR CHANGES 1 George C. Miller, Donald M. Allen, and T.J. Costello Southeast Fisheries Center National Marine Fisheries Service, NOAA 75 Virginia Beach Drive Miami, FL 33149 and J. Harold Hudson U.S. Geological Survey Fisher Island. Station Miami Beach, FL 33139 ABSTRACT:: Ovarian color was described for the calico scallop, Argopecten gibbus, by sizes and seasons from May 1970 to October 1971 on the Cape Canaveral grounds, Florida.
    [Show full text]
  • Chesapecten, a New Genus of Pectinidae (Mollusca: Bivalvia) from the Miocene and Pliocene of Eastern North America
    Chesapecten, a New Genus of Pectinidae (Mollusca: Bivalvia) From the Miocene and Pliocene of Eastern North America GEOLOGICAL SURVEY PROFESSIONAL PAPER 861 Chesapecten) a New Genus of Pectinidae (Mollusca: Bivalvia) From the Miocene and Pliocene of Eastern North America By LAUCK W. WARD and BLAKE W. BLACKWELDER GEOLOGIC.AL SURVEY PROFESSIONAL PAPER 861 A study of a stratigraphically important group of Pectinidae with recognition of the earliest described and figured Anzerican fossil UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1975 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress Cataloging in Publication Data Ward, Lauck W Chesapecten, a new genus of Pectinidae (Mollusca, Bivalvia) from the Miocene and Pliocene of eastern North America. (Geological Survey professional paper ; 861) Includes bibliography and index. Supt. of Docs. no.: I 19.16:861 1. Chesapecten. 2. Paleontology-Tertiary. 3. Paleontology-North America. I. Blackwelder, Blake W., joint author. II. Title III. Series: United States. Geological Survey. Professional paper : 861. QE812.P4W37 564'.11 74-26694 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402- Price $1.45 (paper cover) Stock Number 2401-02574 CONTENTS Page Abstract --------------------------------------------------------------------------------- 1 Introduction -------------------------------------------------.----------------------------- 1 Acknowledgments ______________________________
    [Show full text]
  • Subspecific Status of Argopecten Irradians Concentricus (Say, 1822) and of the Bay Scallops of Florida
    THE NAUTILUS 110(2)42-44, 1997 Page 42 Subspecific Status of Argopecten irradians concentricus (Say, 1822) and of the Bay Scallops of Florida Dan C. Marelli Maureen K. Krause' William G. Lyons Department of Ecology and 147087 William S. Arnold Evolution Florida Department of State University of New York at Environmental Protection Stony Brook Florida Marine Research Institute Stony Brook, NY 11794-5245 USA 100 8th Avenue SE St Petersburg, FL 33701-5095 USA ABSTRACT specimens from the coast of New Jersey and also rec­ ognized as distinct a variety from New England that he Nei genetic distances between Florida and North Carolina pop­ ulations of bay scallops, all putatively Argopecten irradians named Pecten borealis, the latter name is now known concentricus, are greater than distances between the North to be a junior synonym of A i irradians Because Say's Carolina population and populations of A i irradians from specimens of F concentricus are lost, Clarke (1965) se­ New York to Massachusetts The subspecies A i concentricus lected a neotype from Great Egg Harbor near Atlantic is probably untenable Evidence for a subspecies, A i taylorae, City in southeastern New Jersey, thereby fixing the type in Florida and the eastern Gulf of Mexico is discussed locality Clarke also restricted the type locality of P Key words Argopecten, bay scallops, genetics, Pectinidae, irradians to Waquoit Bay near Falmouth, Massachusetts subspecies Clarke (1965) evaluated the status of subspecific units among bay scallops by comparing four "primary char­ acters"
    [Show full text]