DOCSLIB.ORG

Reproductive Period and Histological Analysis of the Painted Comber, Serranus Scriba (Linnaeus, 1758), in the Trogir Bay Area (Eastern Mid-Adriatic)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Reproductive Period and Histological Analysis of the Painted Comber, Serranus Scriba (Linnaeus, 1758), in the Trogir Bay Area (Eastern Mid-Adriatic) ISSN: 0001-5113 ACTA ADRIAT., UDC: 597.582.2 591.16:597.582.2(497.5 Trogir)(262.3) AADRAY 46 (1): 77 - 82, 2005 Original scientific paper Reproductive period and histological analysis of the painted comber, Serranus scriba (Linnaeus, 1758), in the Trogir Bay area (eastern mid-Adriatic) Barbara ZORICA, Gorenka SINOVČIĆ and Vanja ČIKEŠ KEČ Institute of Oceanography and Fisheries, P.O. Box 500, 21 000 Split, Croatia A total of 798 specimens of the painted comber, Serranus scriba (Linnaeus, 1758), were caught in Trogir Bay (eastern mid-Adriatic) from June 2001 to May 2002 and analyzed. Total length ranged 7.1-20.0 cm (mean 11.0±1.7 cm); body weight ranged 4.21-108.99 g (mean 18.59±10.248 g). Histological analysis of 242 specimens confirmed simultaneous hermaphroditism. The annual variation of gonadosomatic index indicates that S. scriba spawns from May to August. Descriptions based on microscopic examinations of ovarian and testicular tissues are given. Key words: Serranus scriba, simultaneous hermaphrodite, spawning season INTRODUCTION throughout the year, especially during the spring and summer. Fishing takes place early in the The painted comber, Serranus scriba morning. (Linnaeus, 1758), is a subtropical species, abundant The purposes of this study were to in the eastern Atlantic from the Bay of Biscay to acquire knowledge on gonad maturation using Mauritania (MAIGRET & LY, 1986), including the macroscopic and histological examination and Canary, Azores and Madeira Islands, and in the to determine the reproductive period of the Mediterranean and Black Sea (BAUCHOT, 1987). painted comber in the Adriatic Sea. It is generally found along continental shelves covered with Posidonia or Cymodocea beds, at a depth of 0.5-150 m. S. scriba is a simultaneous MATERIAL AND METHODS hermaphrodite (FISCHER & PETERSEN, 1987), with A total of 798 painted combers were caught as the possibility of self-fertilization (ATZ, 1965). It a by-product species by small coastal trawler (12 tends to spawn during spring and summer and is mm stretched mesh) in the Trogir Bay (eastern reproductively active for five months, depending mid-Adriatic; Fig. 1) from June 2001 to May on environmental conditions (THRESHER, 1984; 2002. SHAPIRO, 1987). Painted combers are mainly Total length was measured to the nearest 0.1 caught in the Adriatic Sea by small coastal trawl and trammel bottom nets as a by-catch species cm; total weight and gonad weight were measured to the nearest 0.01 g. The gonadosomatic index 78 ACTA ADRIATICA, 46(1): 77-82, 2005 Fig. 1. Location of Trogir Bay (GSI) was calculated for each fish and values eosin, and examined by microscope. Oocytes were averaged monthly. The GSI was calculated were classified according to morphology and as Wg x 100/W, where Wg is the weight of the the presence and position of lipid droplets, gonads and W is the wet weight of the fish. yolk vesicles, and granules (YAMAMOTO, 1956). Spermatogenic cells were classified according Gonads of 242 specimens caught during to GRIER (1981). the peak of the spawning period were taken for histological analysis. They were fixed in 4% formaldehyde solution, dehydrated in alcohol, RESULTS AND DISCUSSION and embedded in paraffin wax. Longitudinal Total length ranged 7.1-20.0 cm (mean or cross sections (10 µm) were made with 11.0±1.7 cm; mode 10.5 cm; Fig. 2). Body weight a microtome, stained with hematoxylin and ranged 4.21-108.99 g (mean 18.59±10.248 g). Fig. 2. Total length frequency of Serranus scriba caught in the Trogir Bay from June 2001 to May 2002 ZORICA, SINOVČIĆ & ČIKEŠ KEČ: Reproductive period and histological analysis of the painted comber in the Trogir Bay 79 Fig. 3. Monthly variation of the gonadosomatic index (GSI) of Serranus scriba from the Trogir Bay GSI values were low from September (0.99%) the anus. Each lobe was covered by smooth to March (0.65%; Fig. 3). They increased in muscle and connective tissue (tunica albuginea). April (1.50%) and May (2.37%), peaked in June Longitudinal and cross sections of the gonads (3.96%), and decreased in July (3.67%) and revealed that the dominant tissue was ovarian; August (1.82%). Consequently, the reproductive testicular tissue was restricted to the anterior period for this species in this environment is region and positioned ventrolaterally (Fig. 4). May to August. Oocytes of different development stages Microscopic examination confirmed that were simultaneously present within the ovarian ovarian and testicular tissues of S. scriba gonads lamellae, which were radially oriented towards matured at the same time. Ovarian tissue was the lumen. This type of ovary is known as yellowish while testicular tissue was white. The asynchronous (MARZA, 1938). Oocytes of the ovotestis was formed of two fairly cylindrical so-called “second growth” (ZANUY & CARRILLO, lobes of similar size that joined at the level of 1973) or “vitellogenesis” (FEBVRE et al., 1975) Fig. 4. (a) Longitudinal and (b) cross sections of Serranus scriba gonads (40x). OT = ovarian tissue; TT = testicular tissue 80 ACTA ADRIATICA, 46(1): 77-82, 2005 Fig. 5. Serranus scriba oocytes (40x). A = primary growth phase; B = yolk vesicle formation; E = early vitellogenesis; H = hydrated oocyte; L = late vitellogenesis; n = nucleus; o = oil droplet; y = yolk granules; zr = zona radiata phase were most numerous. Three stages of type of oocyte is called a “hydrated oocyte” oocytes were identified during this phase (Fig. (HUNTER & MACEWICZ, 1985) and spawning 5): (a) yolk vesicle formation - yolk vesicles begins with its formation (HUNTER et al., 1986). appeared in the cytoplasm of oocyte cells and A smaller number of primary-growth oocytes rounded up the nucleus. Later, the number were noticed, together with the second growth and size of yolk vesicles increased and lipid oocytes, in all histological sections. The primary- inclusions began to accumulate in the cytoplasm. growth oocytes represent oocyte reserves for the The zona radiata and follicular layer became next reproductive season. visible; (b) vitellogenesis - the yolk vesicles were The testes were organized inside the lobules. larger in number and size; some had fused. Yolk Testicular tissue extended upwards and towards granules, which appeared first in the periphery the central lumen of the gonad. The lobules con- of the cytoplasm, increased in size and number, sisted of many seminiferous tubules containing dispersing throughout the cytoplasm; (c) ripe cysts. Each cyst was formed of spermatogenic - several oil droplets fused together, forming a cells in the same stage of spermatogenesis and large droplet that migrated towards the animal bounded by a thin layer of connective tissue. pole together with the nucleus. The nucleus was In accordance with the terminology of GRIER not always visible due to disintegration of the (1981), the following cells were observed (Fig. nuclear membrane and dispersion of its contents 6): (a) spermatogonia - globular cells positioned into the cytoplasm. The yolk granules fused, at the periphery of the seminiferous tubules, forming a continuous mass of fluid yolk. This usually forming cysts; (b) spermatocytes - oval Fig. 6. Testicular tissue of Serranus scriba (40x). S = spermatogonia; SP = spermatocytes; ST = spermatids ZORICA, SINOVČIĆ & ČIKEŠ KEČ: Reproductive period and histological analysis of the painted comber in the Trogir Bay 81 cells smaller than spermatogonia; (c) spermatid The histological characteristics of S. scriba cells with a large and rounded nucleus; (d) sper- agree with those of other Serranus species (GARCÍA-DÍAZ et al., 1999; 2002). Nevertheless, matozoa - spermatid cells rejected into the cyst further detailed histological analysis of the S. cavity as spermatogenesis neared its end. They scriba gonad is required to obtain a more continued to develop as spermatozoa. detailed spawning pattern of this species. REFERENCES ATZ, J.W. 1965. Hermaphroditic Fish. Science, GRIER, H.J. 1981. Cellular organization of the 150: 789-797. testis and spermatogenesis in fishes. Amer. BAUCHOT, M.L. 1987. Serranidae. In: W. Fischer, Zool., 21: 345-357. M.L. Bauchot, M. Schneider (Editors). HUNTER, J.R. & B.J. MACEWICZ. 1985. Rates of Fiches FAO d’Identification des Espèces atresia in the ovary of captive and wild pour les Besoins de la Pêche. (Révision 1), northern anchovy, Engraulis mordax. Fish. Bull., 83: 119-136. Méditerranée et Mer Noire. Zones de Pèche HUNTER, J.R., B.J. MACEWICZ & J.R. SIBERT. 1986. 37, II (Vertébrés). FAO-CEE, Rome, pp. The spawning frequency of skipjack tuna, 1301-1319. Katsuwonus pelamis, from the south Pacific. FEBVRE, M., M. MICHELE & M. LAFAURIE. 1975. Fish. Bull. U.S., 84: 895-903. Comparaison de la séquence ovogénétique MAIGRET, J. & B. LY. 1986. Les poissons de mer chez des Téléostéens ovipares gonochoriques de Mauritanie. Science Nat., Compiègne, et hermaphrodites (Mullus, Serranus, Boops). 213 pp. Pubbl. Staz. Zool. Napoli, 39: 140-152. MARZA, V.D. 1938. Histophysiologie de l’ovo- FISHER, W. & C.W. PETERSEN. 1987. The evolution génèse. Paris, 81 pp. of sexual patterns in the seabasses. Space SHAPIRO, D.Y. 1987. Reproduction in groupers. In: use and behavior can predict whether a J. Polovina, S. Ralston (Editors). Tropical Snappers and Groupers. Westview Press, species has harems or is monogamous and Boulder, pp. 295-328. hermaphroditic. BioScience, 37: 482-489. THRESHER, R.E. 1984. Reproduction in reef fishes. GARCÍA-DÍAZ, M.M., M.J. LORENTE, J.A. GONZÁLEZ T.H.F. Publ., Neptune City, 399 pp. & V.M. TUSET. 1999. Comparative ultrastructure YAMAMOTO, K. 1956. Studies on the formation of of spermatozoa of three marine teleosts of fish eggs. Annual cycle in the development the genus Serranus: S. articauda, S. cabrilla of the ovarian eggs in the flounder, Liopsetta and S. scriba. J. Submicrosc. Cytol. Pathol., obscura. J. Fac. Sci. Hokkaido University, 31: 503-508. ser VI, Zool., 12: 362-373. GARCÍA-DÍAZ, M.M., M.J.
Load more

Recommended publications
  • FISH LIST WISH LIST: a Case for Updating the Canadian Government’S Guidance for Common Names on Seafood
    FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood Authors: Christina Callegari, Scott Wallace, Sarah Foster and Liane Arness ISBN: 978-1-988424-60-6 © SeaChoice November 2020 TABLE OF CONTENTS GLOSSARY . 3 EXECUTIVE SUMMARY . 4 Findings . 5 Recommendations . 6 INTRODUCTION . 7 APPROACH . 8 Identification of Canadian-caught species . 9 Data processing . 9 REPORT STRUCTURE . 10 SECTION A: COMMON AND OVERLAPPING NAMES . 10 Introduction . 10 Methodology . 10 Results . 11 Snapper/rockfish/Pacific snapper/rosefish/redfish . 12 Sole/flounder . 14 Shrimp/prawn . 15 Shark/dogfish . 15 Why it matters . 15 Recommendations . 16 SECTION B: CANADIAN-CAUGHT SPECIES OF HIGHEST CONCERN . 17 Introduction . 17 Methodology . 18 Results . 20 Commonly mislabelled species . 20 Species with sustainability concerns . 21 Species linked to human health concerns . 23 Species listed under the U .S . Seafood Import Monitoring Program . 25 Combined impact assessment . 26 Why it matters . 28 Recommendations . 28 SECTION C: MISSING SPECIES, MISSING ENGLISH AND FRENCH COMMON NAMES AND GENUS-LEVEL ENTRIES . 31 Introduction . 31 Missing species and outdated scientific names . 31 Scientific names without English or French CFIA common names . 32 Genus-level entries . 33 Why it matters . 34 Recommendations . 34 CONCLUSION . 35 REFERENCES . 36 APPENDIX . 39 Appendix A . 39 Appendix B . 39 FISH LIST WISH LIST: A case for updating the Canadian government’s guidance for common names on seafood 2 GLOSSARY The terms below are defined to aid in comprehension of this report. Common name — Although species are given a standard Scientific name — The taxonomic (Latin) name for a species. common name that is readily used by the scientific In nomenclature, every scientific name consists of two parts, community, industry has adopted other widely used names the genus and the specific epithet, which is used to identify for species sold in the marketplace.
    [Show full text]
  • Ecography ECOG-01937 Hattab, T., Leprieur, F., Ben Rais Lasram, F., Gravel, D., Le Loc’H, F
    Ecography ECOG-01937 Hattab, T., Leprieur, F., Ben Rais Lasram, F., Gravel, D., Le Loc’h, F. and Albouy, C. 2016. Forecasting fine- scale changes in the food-web structure of coastal marine communities under climate change. – Ecography doi: 10.1111/ecog.01937 Supplementary material Forecasting fine-scale changes in the food-web structure of coastal marine communities under climate change by Hattab et al. Appendix 1 List of coastal exploited marine species considered in this study Species Genus Order Family Class Trophic guild Auxis rochei rochei (Risso, 1810) Auxis Perciformes Scombridae Actinopterygii Top predators Balistes capriscus Gmelin, 1789 Balistes Tetraodontiformes Balistidae Actinopterygii Macro-carnivorous Boops boops (Linnaeus, 1758) Boops Perciformes Sparidae Actinopterygii Basal species Carcharhinus plumbeus (Nardo, 1827) Carcharhinus Carcharhiniformes Carcharhinidae Elasmobranchii Top predators Dasyatis pastinaca (Linnaeus, 1758) Dasyatis Rajiformes Dasyatidae Elasmobranchii Top predators Dentex dentex (Linnaeus, 1758) Dentex Perciformes Sparidae Actinopterygii Macro-carnivorous Dentex maroccanus Valenciennes, 1830 Dentex Perciformes Sparidae Actinopterygii Macro-carnivorous Diplodus annularis (Linnaeus, 1758) Diplodus Perciformes Sparidae Actinopterygii Forage species Diplodus sargus sargus (Linnaeus, 1758) Diplodus Perciformes Sparidae Actinopterygii Macro-carnivorous (Geoffroy Saint- Diplodus vulgaris Hilaire, 1817) Diplodus Perciformes Sparidae Actinopterygii Basal species Engraulis encrasicolus (Linnaeus, 1758) Engraulis
    [Show full text]
  • Recent Data of Maximum Age and Length of Painted Comber Serranus Scriba (Linnaeus, 1758) in Mediterranean Sea
    ISSN: 0001-5113 ACTA ADRIAT., UDC: 594.1 (497.5) (262.3) AADRAY 51(2): 223 - 226, 2010 Recent data of maximum age and length of painted comber Serranus scriba (Linnaeus, 1758) in Mediterranean Sea Barbara ZORICA*, Armin PALLAORO, Gorenka SINOVČIĆ and Vanja ČIKEŠ KEČ Institute of Oceanography and Fisheries, P.O. Box 500, 21 000 Split, Croatia *Corresponding author, e-mail: [email protected] The present study was undertaken not only to register the new recently noticed maximum age and total length of Serranus scriba (Linnaeus, 1758), contributing to the knowledge of this species in the Mediterranean and Adriatic Sea inclusively. A painted comber specimen of 323 mm of total length and age 16 years was caught during August 2008 in the Lavdra Channel (middle-eastern Adriatic Sea). Key words: Serranus scriba, Serranidae, maximum length, maximum age, Adriatic Sea, Mediterranean INTRODUCTION (43º55’N and 15º13’E) by a fishhook at a depth of 3.5 m. All lengths of the specimen were In fisheries science, theoretical parameters measured up to the nearest 0.1 cm and weighed such as maximum length, weight and age are with an electric balance to the nearest 0.1 g. The very important as they directly and indirectly sagittal otolith was removed by opening the otic enter into most of the models used in stock bulla under the operculum, washed in freshwa- assessments (BORGES, 2001). Thereupon, updat- ter and stored in plastic tube prior to ageing. ing the maximum size of a species that might The fish was dissected for determination of become commercially exploited is significant.
    [Show full text]
  • Short-Term Residence, Home Range Size and Diel Patterns of the Painted Comber Serranus Scriba in a Temperate Marine Reserve
    Vol. 400: 195–206, 2010 MARINE ECOLOGY PROGRESS SERIES Published February 11 doi: 10.3354/meps08410 Mar Ecol Prog Ser Short-term residence, home range size and diel patterns of the painted comber Serranus scriba in a temperate marine reserve D. March1,*, M. Palmer1, J. Alós1, A. Grau2, F. Cardona1 1Instituto Mediterráneo de Estudios Avanzados, IMEDEA (UIB-CSIC), Miquel Marqués 21, 07190 Esporles, Islas Baleares, Spain 2Laboratori d’Investigacions Marines i Aqüicultura, LIMIA, Eng. Gabriel Roca 69, 07157 Port d’Andratx, Islas Baleares, Spain ABSTRACT: We examined the short-term movements of a small temperate fish, the painted comber Serranus scriba (Linnaeus 1758), within the marine protected area (MPA) of Palma Bay (NW Mediter- ranean) using passive acoustic telemetry. Fifteen adults were surgically implanted with acoustic transmitters and monitored between July 2007 and February 2008 for periods of up to 36 d. Inter- individual variability was detected for both spatial and temporal patterns. There were 2 principal movement behaviours that were recorded, with some individuals showing high site fidelity and others showing a more mobile behaviour, moving out from the monitoring area. Observation-area curves indicated that a period between 3 and 5 d was required to determine home ranges of the sedentary fish. Home range sizes were small, with a minimum shift of core areas occurring on a daily basis. Total minimum convex polygon (MCP) areas ranged between 0.102 and 0.671 km2, whereas 95% kernel utilization distributions (KUD) ranged between 0.760 and 1.333 km2. Core areas (50% KUD) ranged between 0.175 and 0.294 km2.
    [Show full text]
  • Highly Diversified Late Cretaceous Fish Assemblage Revealed by Otoliths (Ripley Formation and Owl Creek Formation, Northeast Mississippi, Usa)
    Rivista Italiana di Paleontologia e Stratigrafia (Research in Paleontology and Stratigraphy) vol. 126(1): 111-155. March 2020 HIGHLY DIVERSIFIED LATE CRETACEOUS FISH ASSEMBLAGE REVEALED BY OTOLITHS (RIPLEY FORMATION AND OWL CREEK FORMATION, NORTHEAST MISSISSIPPI, USA) GARY L. STRINGER1, WERNER SCHWARZHANS*2 , GEORGE PHILLIPS3 & ROGER LAMBERT4 1Museum of Natural History, University of Louisiana at Monroe, Monroe, Louisiana 71209, USA. E-mail: [email protected] 2Natural History Museum of Denmark, Zoological Museum, Universitetsparken 15, DK-2100, Copenhagen, Denmark. E-mail: [email protected] 3Mississippi Museum of Natural Science, 2148 Riverside Drive, Jackson, Mississippi 39202, USA. E-mail: [email protected] 4North Mississippi Gem and Mineral Society, 1817 CR 700, Corinth, Mississippi, 38834, USA. E-mail: [email protected] *Corresponding author To cite this article: Stringer G.L., Schwarzhans W., Phillips G. & Lambert R. (2020) - Highly diversified Late Cretaceous fish assemblage revealed by otoliths (Ripley Formation and Owl Creek Formation, Northeast Mississippi, USA). Riv. It. Paleontol. Strat., 126(1): 111-155. Keywords: Beryciformes; Holocentriformes; Aulopiformes; otolith; evolutionary implications; paleoecology. Abstract. Bulk sampling and extensive, systematic surface collecting of the Coon Creek Member of the Ripley Formation (early Maastrichtian) at the Blue Springs locality and primarily bulk sampling of the Owl Creek Formation (late Maastrichtian) at the Owl Creek type locality, both in northeast Mississippi, USA, have produced the largest and most highly diversified actinopterygian otolith (ear stone) assemblage described from the Mesozoic of North America. The 3,802 otoliths represent 30 taxa of bony fishes representing at least 22 families. In addition, there were two different morphological types of lapilli, which were not identifiable to species level.
    [Show full text]
  • Optimizing Marine Spatial Plans with Animal Tracking Data1 Robert J
    497 DISCUSSION Optimizing marine spatial plans with animal tracking data1 Robert J. Lennox, Cecilia Engler-Palma, Katie Kowarski, Alexander Filous, Rebecca Whitlock, Steven J. Cooke, and Marie Auger-Méthé Abstract: Marine user–environment conflicts can have consequences for ecosystems that negatively affect humans. Strategies and tools are required to identify, predict, and mitigate the conflicts that arise between marine anthropogenic activities and wildlife. Estimating individual-, population-, and species-scale distributions of marine animals has historically been challenging, but electronic tagging and tracking technologies (i.e., biotelemetry and biologging) and analytical tools are emerging that can assist marine spatial planning (MSP) efforts by documenting animal interactions with marine infrastructure (e.g., tidal turbines, oil rigs), identifying critical habitat for animals (e.g., migratory corridors, foraging hotspots, reproductive or nursery zones), or delineating distributions for fisheries exploitation. MSP that excludes consideration of animals is suboptimal, and animal space-use estimates can contribute to efficient and responsible exploitation of marine resources that harmonize economic and ecological objectives of MSP. This review considers the application of animal tracking to MSP objectives, presents case studies of successful integration, and provides a look forward to the ways in which MSP will benefit from further integration of animal tracking data. Résumé : Les conflits entre les utilisateurs du milieu marin et l’environnement peuvent avoir des conséquences sur les écosystèmes qui, elles, ont des effets négatifs sur les humains. Des stratégies et outils sont nécessaires pour cerner, prédire et atténuer de tels conflits entre les activités humaines en mer et les espèces marines. L’estimation de la répartition d’animaux marins à l’échelle des individus, des populations et des espèces s’est avérée difficile par le passé, mais des technologies électroniques de marquage et de suivi (c.-à-d.
    [Show full text]
  • Fish Otoliths from the Late Maastrichtian Kemp Clay (Texas, Usa)
    Rivista Italiana di Paleontologia e Stratigrafia (Research in Paleontology and Stratigraphy) vol. 126(2): 395-446. July 2020 FISH OTOLITHS FROM THE LATE MAASTRICHTIAN KEMP CLAY (TEXAS, USA) AND THE EARLY DANIAN CLAYTON FORMATION (ARKANSAS, USA) AND AN ASSESSMENT OF EXTINCTION AND SURVIVAL OF TELEOST LINEAGES ACROSS THE K-PG BOUNDARY BASED ON OTOLITHS WERNER SCHWARZHANS*1 & GARY L. STRINGER2 1Natural History Museum of Denmark, Zoological Museum, Universitetsparken 15, DK-2100, Copenhagen, Denmark; and Ahrensburger Weg 103, D-22359 Hamburg, Germany, [email protected] 2 Museum of Natural History, University of Louisiana at Monroe, Monroe, Louisiana 71209, USA, [email protected] *Corresponding author To cite this article: Schwarzhans W. & Stringer G.L. (2020) - Fish otoliths from the late Maastrichtian Kemp Clay (Texas, USA) and the early Danian Clayton Formation (Arkansas, USA) and an assessment of extinction and survival of teleost lineages across the K-Pg boundary based on otoliths. Riv. It. Paleontol. Strat., 126(2): 395-446. Keywords: K-Pg boundary event; Gadiformes; Heterenchelyidae; otolith; extinction; survival. Abstract. Otolith assemblages have rarely been studied across the K-Pg boundary. The late Maastrichtian Kemp Clay of northeastern Texas and the Fox Hills Formation of North Dakota, and the early Danian Clayton Formation of Arkansas therefore offer new insights into how teleost fishes managed across the K-Pg boundary as reconstructed from their otoliths. The Kemp Clay contains 25 species, with 6 new species and 2 in open nomenclature and the Fox Hills Formation contains 4 species including 1 new species. The two otolith associations constitute the Western Interior Seaway (WIS) community.
    [Show full text]
  • GOT Fish ID 2016.Pptx
    GOT Fish ID Revised February, 26, 2016 South Carolina Aquarium Dive Operaons Arnold Postell Dive Safety Officer / Senior Biologist (843) 579-8536 [email protected] Ryan Yuen Assistant Dive Safety Officer (843) 579-8503 [email protected] 2 It is the mission of the South Carolina Aquarium (SCA) Dive Team to provide excellence in animal care and husbandry, to actively support both the educational and conservation endeavors of the SCA, and to provide a memorable, positive guest experience to all those who visit our facility. 3 Training Schedule • PowerPoint Presentaon > Statement of Understanding and Quiz 4 Almaco Jack Seriola rivoliana • Relaves: member of the family Caragidae • Descripon: Their dorsal fin and anal fins are elongated and their outer edges have a definite sickle shape. Generally dusky-colored with faint amber or olive stripes down the sides. Their upper bodied and lower fins are dark brown. • Size: Grows up to 35 in Weight: 132 lb • Habitat: Small groups on slopes and off of reefs. • Habitat-GOT: • Diet: • Diet-GOT: 5 AmberJack (Greater) Seriola dumerili • Relaves: members of the Jack—Carangidae family • Descripon: Diagonal band runs from lip, across eye to beginning of dorsal fin. Can lighten when in feeding mode. Silvery; fins may have yellow cast. Oen have yellowish stripe along mid body. • Size: maximum 5½ feet Weight: 40-140 pounds • Habitat: open-water fish; rarely swim over reefs. Oen in large schools. • Habitat-GOT: All levels • Diet: • Die-GOT: mackerel, smelt, squid, capelin 6 Banded Rudderfish Seriola zonata • Relaves: Jack and pompanos • Descripon: Juveniles are banded vercally like piloish, and follow large objects or animals.
    [Show full text]
  • Marine Fishes from Galicia (NW Spain): an Updated Checklist
    1 2 Marine fishes from Galicia (NW Spain): an updated checklist 3 4 5 RAFAEL BAÑON1, DAVID VILLEGAS-RÍOS2, ALBERTO SERRANO3, 6 GONZALO MUCIENTES2,4 & JUAN CARLOS ARRONTE3 7 8 9 10 1 Servizo de Planificación, Dirección Xeral de Recursos Mariños, Consellería de Pesca 11 e Asuntos Marítimos, Rúa do Valiño 63-65, 15703 Santiago de Compostela, Spain. E- 12 mail: [email protected] 13 2 CSIC. Instituto de Investigaciones Marinas. Eduardo Cabello 6, 36208 Vigo 14 (Pontevedra), Spain. E-mail: [email protected] (D. V-R); [email protected] 15 (G.M.). 16 3 Instituto Español de Oceanografía, C.O. de Santander, Santander, Spain. E-mail: 17 [email protected] (A.S); [email protected] (J.-C. A). 18 4Centro Tecnológico del Mar, CETMAR. Eduardo Cabello s.n., 36208. Vigo 19 (Pontevedra), Spain. 20 21 Abstract 22 23 An annotated checklist of the marine fishes from Galician waters is presented. The list 24 is based on historical literature records and new revisions. The ichthyofauna list is 25 composed by 397 species very diversified in 2 superclass, 3 class, 35 orders, 139 1 1 families and 288 genus. The order Perciformes is the most diverse one with 37 families, 2 91 genus and 135 species. Gobiidae (19 species) and Sparidae (19 species) are the 3 richest families. Biogeographically, the Lusitanian group includes 203 species (51.1%), 4 followed by 149 species of the Atlantic (37.5%), then 28 of the Boreal (7.1%), and 17 5 of the African (4.3%) groups. We have recognized 41 new records, and 3 other records 6 have been identified as doubtful.
    [Show full text]
  • Growth and Reproduction of Brown Comber (Serranus Hepatus Linnaeus, 1758) in the Central Aegean Sea, Turkey
    Turkish Journal of Zoology Turk J Zool (2013) 37: 211-217 http://journals.tubitak.gov.tr/zoology/ © TÜBİTAK Research Article doi:10.3906/zoo-1203-34 Growth and reproduction of brown comber (Serranus hepatus Linnaeus, 1758) in the central Aegean Sea, Turkey Ozan SOYKAN*, Akın Türker İLKYAZ, Gülnur METİN, Hasan Tuncay KINACIGİL Fisheries Faculty, Ege University, 35100 Bornova, İzmir, Turkey Received: 27.03.2012 Accepted: 08.09.2012 Published Online: 25.02.2013 Printed: 25.03.2013 Abstract: The growth and reproduction of brown comber (Serranus hepatus Linnaeus, 1758) were studied using specimens collected from the central Aegean Sea between July 2004 and June 2007. A total of 2410 specimens were analyzed, and of those, 2290 individuals were mature and 120 individuals were juvenile. Analyses covered all individuals because the species is a simultaneous hermaphrodite. The length–weight relationship was determined as W = 0.013L3.11, indicating a positive allometric growth for all samples. The estimated −1 von Bertalanffy growth parameters were L∞ = 13.19 cm, k = 0.252 y , and to = −0.630 y, and the infinite weight (W∞) was calculated as 39.38 g. The growth performance index (φʹ) of the stock was calculated as 1.642. The first reproduction length was found to be 7.76 cm, corresponding to 3 years of age. The spawning period of the species was determined between May and October. Key words: Brown comber, Serranus hepatus, age, growth, reproduction, first reproduction length, central Aegean Sea 1. Introduction Regarding reproduction strategies, gonadal Serranus hepatus (Linnaeus, 1758), known as brown differentiation can be observed in many teleost fish comber, is a member of the family Serranidae.
    [Show full text]
  • Mediterranean Sea
    OVERVIEW OF THE CONSERVATION STATUS OF THE MARINE FISHES OF THE MEDITERRANEAN SEA Compiled by Dania Abdul Malak, Suzanne R. Livingstone, David Pollard, Beth A. Polidoro, Annabelle Cuttelod, Michel Bariche, Murat Bilecenoglu, Kent E. Carpenter, Bruce B. Collette, Patrice Francour, Menachem Goren, Mohamed Hichem Kara, Enric Massutí, Costas Papaconstantinou and Leonardo Tunesi MEDITERRANEAN The IUCN Red List of Threatened Species™ – Regional Assessment OVERVIEW OF THE CONSERVATION STATUS OF THE MARINE FISHES OF THE MEDITERRANEAN SEA Compiled by Dania Abdul Malak, Suzanne R. Livingstone, David Pollard, Beth A. Polidoro, Annabelle Cuttelod, Michel Bariche, Murat Bilecenoglu, Kent E. Carpenter, Bruce B. Collette, Patrice Francour, Menachem Goren, Mohamed Hichem Kara, Enric Massutí, Costas Papaconstantinou and Leonardo Tunesi The IUCN Red List of Threatened Species™ – Regional Assessment Compilers: Dania Abdul Malak Mediterranean Species Programme, IUCN Centre for Mediterranean Cooperation, calle Marie Curie 22, 29590 Campanillas (Parque Tecnológico de Andalucía), Málaga, Spain Suzanne R. Livingstone Global Marine Species Assessment, Marine Biodiversity Unit, IUCN Species Programme, c/o Conservation International, Arlington, VA 22202, USA David Pollard Applied Marine Conservation Ecology, 7/86 Darling Street, Balmain East, New South Wales 2041, Australia; Research Associate, Department of Ichthyology, Australian Museum, Sydney, Australia Beth A. Polidoro Global Marine Species Assessment, Marine Biodiversity Unit, IUCN Species Programme, Old Dominion University, Norfolk, VA 23529, USA Annabelle Cuttelod Red List Unit, IUCN Species Programme, 219c Huntingdon Road, Cambridge CB3 0DL,UK Michel Bariche Biology Departement, American University of Beirut, Beirut, Lebanon Murat Bilecenoglu Department of Biology, Faculty of Arts and Sciences, Adnan Menderes University, 09010 Aydin, Turkey Kent E. Carpenter Global Marine Species Assessment, Marine Biodiversity Unit, IUCN Species Programme, Old Dominion University, Norfolk, VA 23529, USA Bruce B.
    [Show full text]
  • Victor Buchet
    Master‘s thesis Impact assessment of invasive flora species in Posidonia oceanica meadows on fish assemblage: an influence on local fisheries? The case study of Lipsi Island, Greece. Victor Buchet Advisor: Michael Honeth University of Akureyri Faculty of Business and Science University Centre of the Westfjords Master of Resource Management: Coastal and Marine Management Ísafjörður, September 2014 Supervisory Committee Advisor: - Micheal Honeth, Tobacco Caye Marine Station, Belize. Reader: - Zoi I. Konstantinou, MSc. - Ph.D. Program Director: - Dagný Arnarsdóttir, MSc. Victor Buchet Impact assessment of invasive flora species in Posidonia oceanica meadows on fish assemblage: an influence on local fisheries? The case study of Lipsi Island, Greece. 45 ECTS thesis submitted in partial fulfilment of a Master of Resource Management degree in Coastal and Marine Management at the University Centre of the Westfjords, Suðurgata 12, 400 Ísafjörður, Iceland Degree accredited by the University of Akureyri, Faculty of Business and Science, Borgir, 600 Akureyri, Iceland Copyright © 2014 Buchet All rights reserved Printing: Háskólaprent, Reykjavík, September 2014 ii Declaration I hereby confirm that I am the sole author of this thesis and it is a product of my own academic research. Victor Buchet Student‘s name iii Abstract Seagrasses are one of the most valuable coastal ecosystems with regards to biodiversity and ecological services, whose diminishing presence plays a significant role in the availability of resources for local communities and human well-being. At the same time, Invasive Alien Species (IAS) are considered as one of the biggest threats to marine worldwide biodiversity. In the Mediterranean, the issue of IAS is one which merits immediate attention; where habitat alteration caused by the human-mediated arrival of new species is a common concern.
    [Show full text]