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Proceedings of the World Scientific Conference on the Biology And Fisheries Re fIorts No. 57, VoL 4 FRm/R57.4 (Tri) PFOc: EINGS F THE WORLD SCIENTIFIC CONFERENCE ON THE PIOLOGY AN CULTURE OF SHRIMPS AND PRAWNS ACTES D LA CONFERENCE SCIENTIFIQUE MONDIALE SUR LA BIOLOGIE ET L'ÉLEVAGE DES CREVETTES ACTAS DE LA CONFERENCIA CIENTIFICA MUNDIAL SOBRE OLOGIA Y CULTWO DE CAMARONES Y GAMBAS Mexico City, Mexico, 12-21 June 1967 Mexico (Mexique), 12-21 juin 1967 Ciudad de México, México, 12-21 junio 1967 j V A FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS F4 0 ORGANISATION DES NATIONS UNIES POUR L'ALIMENTATION ET L'AGRICULTURE ORGANIZACION DE LAS NACIONES UNIDAS PARA LA AGRICULTURA Y LA ALIMENTACION 47 ? ROME, 1970 - 1269 FAO LIBRARY AN: 100710 FRm/S95 FAO Fieherie SynopoioNo.95 SASP - Prawn SYNOPSIS O BIOLOGICAL DATA ON THE PRAWN Panda.lua ylatycoros Brandt, 1851 Exposé synoptique sur la biologlo de Pandalus platyceros Brandt, 1551 Sinopsis sobro la biología dol Pandalus platyceros Brandt, 1851 preparad by T.H. BUTLER Fisheries Research Board of Canada Biological Station Nanaimo, British Columbia, Canada - 1291 - m/395P. platyosros j C O N T E N T Page No, I IDENTITY 1x1 1,1 Taxonomy 1 1.1,1Definition 1 1.1.2 Description 1 1,2 Nomenclature 1 1.2,1 Valid scientific names i 1.2,2 Synonyms 1 1.2.3 Standard oommon names, vernacular names 1. 1.3General variability 3 1.3,1 Subspeoifio fragmentation (races, varieties, hybrids) 3 1.3.2 Genetic data (chromosome number, protein specificity) 2t1 2 DISTRIBUTION 2.1 Delimitation of the total area of distribution and ecological characterization of this area 1 2,2 Differential distribution 1 2.2.1Areas occupied by eggs, larvae and other junior stages: annual variations in these patterns, and seasonal variations for stages persisting over two or more seasons 2.2.2Areas occupied by adult stages: seasonal and annual variations of these 2.3Behaviouristic and ecological determinants of the j'eneral limits of distribution and of the variations of theo limits and, of differential distribution* 3 BIOKO14ICSAND LIFE HISTORY 3:1 3.1 Reproduotion i 3.1.1 Sexuality (hermaphroditism, heterosexuality, intersexuality) 1 3.1.2 Maturity (age and size) i 3.1.3Mating (monogamous, polygamous, promiscuous)* 3.1,4Fertilization (internal, external) * 3.1.5Fecundity i 3.1.6Spawning 1 3.1.7 Spawning grounds 1 3.1.8Egg: structure, size, hatching type, parasites, and predators i 3.2 Larval hietox7 i 3.2.1 A000unt of embryonio and juvenile life (prelarva, larva, postlarva, juvenile) This synopsis has been prepared according to Outline Version No, 1. (H. Rosa Jr., FAO Fieh.Synops,, (I) Itev.l,1965). - 1292 - ii FRin/S95P. platyoeros Page No, 3,3 Adult history 3*5 3,3.1 Longevity 5 3.3.2 Hardiness S 3.3.3 Competitors 5 3.3.4 Predators 5 3.3,5Parasites and diseases 5 3.3.6 Greatest size 5 3,4Nutrition and growth 5 3,4.1 Feeding (time, place, manner, season) 5 3,4.2 Food (type, volume) 5 3.4.3 Relative and absolute growth patterns and ratee 5 3.4.4 Relation of growth to feeding, to other activities, and to environmental faotore * 3.5 Behaviour 6 3.5.1Migration and local movemente 6 3.5.2Schooling * 3,5.3Reproductive habits 4 POPULATION(sTocIc) 4.1 Struoture 4.1.1 Sex ratio 4.1,2Age composition 4,1.3 Size composition 4.2 Size and density 4,2.1Average size 4,2.2 Changes in size 4,2,3 Average density 4,2,4 Changes in density 4,3 Natality and recruitmant 1 4.3.1 Natality * 4.3.2Natality rates 4,4Mortality, morbidity 4.4.1 Rates of mortality 4,4.2Factors or conditions affecting mortality 4,4,3Factors or conditions affecting morbidity 4.4,4Relation of morbidity to mortality rates 4.5 Dynamics of population 1 4.6 Relation of population to community nd ecosystem, biological production, etc.* EXPLOITATION 5,1 5.1 Fishing equipment i 5.1.1Fishing gear i 5,1,2Fishing boats i 1293 - FRmJ. lat oeroe iii Page No0 5,2 Fishing areas 5t]. 5.2.1 General geographic distribution i 5.2.2 Geographioal rangos (latitudes, distances from coast, sto,) 1 5.2.3 Depth ranges 6 5,3 Fishing seasons 6 5.3.1 General pattern of fishing season 6 5.3.2 Duration of fishing season * 5.3,3Dates of beginning, peak and end of season * 5,3.4 Variation in time or duration of fishing season* 5.3.5 Factors affecting fishing season * 5.4Fishing operations and results 6 5,4.1 Effort and intensity 6 542 Seleotivit 6 5,4,3 Catches 6 5.5 Fisheries management and regulations 6 5,6 Fish farming, transplanting and other intervention * 6 REFERENCES 6z1 * As no information was available to the author, these itom have been omitted from the text. - 1294 - 595 P. platycoro i IDENTIFY ii, Rostrum less than 1Y2 times as long as CarapaO 1,1Taxonom Antennal conic very narrot:, dia--- l.,llDefinition tal half of blade narrouer thcm adjacent opino, P. opis Phylum ArtlLropoda Clase Cructacea Antennal scale of moderato width, Subclass Lalaoostraoa distal half of blade wider than Order Doonpoda adjacent spinet,P. Suborder Natantia Section Canden Spool! Superfamily Pandaloida Family Pandaljdae The holotype of P. platyceros, if still Genus d.aius Leach 1814 extant, may be in the Zoological Museum at Species Pancialus platcsros Leningrad.Type looslityx "bei der Insel Brandt, 1851, Unalasohka" (.Unalaeka Island, Aleutian Is- 1.1,2Desoription lands, Alaska) (Brandt, 1851). Generic The speoles is illustrated in Fig. i. Pandalus Leach, 1814, Brewster's Edinburgh Encyclopaedia, 7:432.Gonder:maeculine. Type The following description of P, platy- species, by sionctypyr Pandaiue montagui Leach ceros is taken from Schmitt (1921). 1814. Body stout,Carapace covered wi'h The generic concept as used by Holthuis short pubesoenos,Rostrum 1Y2o 1 2/3 i:oo (1955) has been adopted.The following defin- length of carapace, provided ,,ith broad, entire, ition of the genus Pandalus is based on him laminar orest on each side; doroel spluen 14 'Iey to the Pandajidas', to 17, extending to middle of rOatrum, anorior 1 to 5 spines fixed and rest movablu; ucually Carpus of 2nd pereiopode consisting of a single spine near acute tip; venlral flied more than 3 jointe.No longitudinal carinne spines 7 or 8; anterior Y2 to 2/3 asoendiug, on the oarapaoo except the postrostral crest. tip above level of carapace,Antennal scalo Rostrum not movable.Eyes well developed, 4/5 to 7/8 length of carapace, oblong, distal cornea much wider than eyestalk.Third sezii- part of blade subtruncate, slightly exceeded liped without exopod.Laminar expansion of by spins.Right second persiopod reaches dimO- the inner border of the lechium of the let tal end of 3rd maxillipeds, carpuc crth 8 or 9 pair of pereiopods wanting or inconspicuous. aements; left pereiopod. 2/5 1engh of right, The first 4 perelopods with epipode.Arthro- oarpua with 2f or 28 segmente.Abdomen moro branche present at the bases of the first 4 1than 2 times length of oarapaooceooh, uot pereiopods,Posterior lobo of scaphognathite carinated,Colour of adults 1igh,en to rec1 acutely produced.Upper margin of rostrum dish brown, juveniles green or darh brota; with movable spines only. horizontal white striping on oarapace2 white spots on let and 5th abdominal segments, Nine species of the genus nda1uo occur along the west coast of 1Joh America0Five 1,2Nomenclature species, P, platyceros, P, danno S1speon, o teno1e Rathbun, gurn.r) Stispoon, 1,2,1Valid soientifio names and P, hypsinotue Brandt, appear to be olonoly ro!a sd, Pandalue platyoeroe Brandt, 1851, in: Middendorff, Relee N.U. Sibiriens, vol, 2 pt. The following key is based on Rathbun 1, p.123. (1904) and Schmitt (1921): 1,2,2Synonyms IDorsal spines on rostrum and carapace not reaohing behind middle of ocrnpaoo, Objective eynonymy ros No ne IIDorsal spines extending behind middle of oarapaoe Subjective synonymy i)Dorsal spines more than 15, P. hynsii- Pandalue pubesoentulue Dana1852, Crust. otus U,S,Explor.Rxped (1838-42), 13(15. 2)Dorsal spines leas than 15 1,2,3Stanthrd common names, vernaoular SLeOC i,Rostrum at least 1Y2 Umso as long as oarapao, P, In Alaska and Waehington the species is Fie. i carapacePanda].u8 length patyceos 4Brandt. na. Dorsal and side views of female, - 1296 - FRm/S95 P. p1atoeroe known ao the spot shrimp, or spot. The oommon name in British Columbia and California is the prawn. 1.3 General variability 1.3.1 Subepeoific fragmentation (races, varieties, hybride) Subepeoiee or varieties have not been es- tablished for P. platyceros. The species te distinot from its several oongeners and is reoognized by all special- its as a valid species. -1297 - /S95P, platyoeroo 2,1 2 DISTRIBUTION 2.2 Differential distribution 2.1 Delimitation of total area of dis- 2.2.1 Areas occupied by eggs9 lar- tribution and ecological oharao- vae and other junior stages r terization of this area annual variations in these patterns, and seasonal varia- The prawn occurs in the North Pacific tiens for stages persisting Ocean, along the vest coast of North Amorioa over two or more seasons from Unalaska to San Diego; and in Asian wa- terse Hokkaido, Toyama Bay, Nagasaki, Korea, Prawns breed in relatively deep water Vladivostok. In terms of the FAO areas codo (73m, and deeper) in the auumn, Eggo nra (seo Hoithuim and Rosa,1965)it occurs in carried over the wintermont13sby he l'ancien parts of mea areas INE and IBE, and on the which appear to remain in %he breading arca coasts of land areas 211, 212, 220, 231, through hatching of larvae, 232, 444, 451 and710.
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