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King and Spanish Hackerel Higration and Stock Assessment Study in the Southern Gulf of Mexico

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King and Spanish Hackerel Higration and Stock Assessment Study in the Southern Gulf of Mexico KING AND SPANISH HACKEREL HIGRATION AND STOCK ASSESSMENT STUDY IN THE SOUTHERN GULF OF MEXICO Contract No. NA90AA-H -MFI00 (MARFIN) 1990 Quarter V (January I-Mar ch 31, 1991) Report Submitted to : Dr. Donald Ekberg Regional Oirector National Marine Fisheries Servi ce Duval Building 9450 Koger Bou l evard St. Petersburg, FL 33702 Mote Marine Laboratory 1600 Thompson Parkway Sarasota, FL 34236 (813) 388-4441 ~;5~ Richard H. Pierce, Ph.D. Karen M. Burns Director of Research Principal Investigator Jay M. Sprinkel Data Manager April I , 1991 TAB LE OF CONTENTS Cover Table of Contents .j List of Fi gures i ; list of Tables i i Acknowledgements iii Pre face/ Prefac i 0 iv INTROOUCTION/ INTROOUCCION I. MOVEMENT AND MIG RATIO N OF MA CKER EL 1 A. Tagging Synopsis, Yucatan and Quintana Roo 4 B. Tag Returns 4 C. Publ ic Information Program I ! II. LENGTH/ FREQUENCY DISTRIBUTION OF MACKEREL 15 III. HISTORICAL LANDINGS DATA 17 IV . STOCK IDENTIFICATION 17 A. Specimen Collection for Electrophoresis 17 B. Oto l ith Co ll ection 17 V. RESULTS 18 LIST OF FIGURES Figure 1. Spanish mackerel tag release locations , 1990 - 1991. Figure 2 . Mackerel length/frequency and catch per unit effort (CPUE) locations , 1990-1991. Figure 3 . King mackerel Quarter V winter tag returns. 12 Figure 4. Number of mackerel tagged off Mexican Gulf Coast States (1986 - 1991). 13 Figure 5. Significant long di stance tag returns between the U. S. and Mexico (1986 - 1991). Figure 6. Significant tag returns within Mexico and from VeraCrlJ 7\ Mexico to the u.s. (1986 - 199 1) . , , Fi gure 7. Important tag returns from Texas to Mexico (l986 - 1991) . Fi gure 8. Sign; ficant tag returns from Tamaul ipas to other Mexi ca n states. Figure 9. Significant long distance tag returns from Campec:he t o other Mexican states . 14 Figure 10 . Important long distance tag returns from Yucatan to Veracruz . Figure 11. Reward po ster. 16 LIST OF TABLES Table I. King (KM) and Spanish (SM) mackerel returns from Mexico by MML (1986 to March 31, 1991) 6 i i ACKNOWLEDGEHENTS The authors would like to thank Or . Kumar Mahad eva n. Dr. Carl Luer, Marion Her sey. Anthony Dreifuss, Victoria Devine and Robert Dixon of Mote Marine laboratory for their assistance. Thanks are also extended to Mr. Eugene Na kamura, Mr. William Fable , and Ms. Barbara Palko of NMFS-Panama City; Or. Donald Ekberg and Ms. Ellie Roche of NMFS-St. Petersburg. Special thanks to Dr. oilio Fue ntes, Jng. Mi guel Peg a and Tee. Raul Lope of the CRIP-Yucalpeten. ; i ; PREFACE The followi ng informati on constitutes the Quarte r V (Jdn uary 1- March 31, 1991) Rep ort by Mote Marine Laboratory (MML) on the 1990 King and Spanish Mackerel Migration and Stock Assessment Study in the Southern Gu lf of Mexico. This project ;s being co ndu cted by Mote Marine laboratory for the U.S . Department of Commerce. National Oceanographic and Atmospheri c Admi ni stration, National Marine Fisheries Service (NOAA/ NMFS) , Panama City laboratory. Florida, under the MARFIN Program. This report covers the period beginning January I , 1991 , and ending March 31, 199!. Presentations are made by task, beginning with movement and migration of mackerel , followed by length/ frequency and CPUE data for mackerel, historical landings data and stock identification . Each task presentation follows the format developed by NOAA/ NMFS Panama City Laboratory and Mote Marine Laboratory. PREFACIO La siguiente informacion constituye el Informe V del Trimestre (1 Enero 1991-31 Marzo 1991) sobre el estudio King and Spanish Mackerel Migration and Stock Assessment in the Southern Gulf of Mexi co. Este proyecto est a s iendo conducido por Mote Marine laboratory para el U.S. Department of Commerce, National Oceanographic and AtmospheriC Administration, National Marine Fi sher ies Service (NOAA/ NMFS) Panama City, Florida Laboratory. Este informe cubre e l periodo come nzando en 1 Enero 1991 y terminando en 31 Marzo 1991. las presentaciones estan hecha por tarea , comenzando co n movimiento y emigracion de la macarela, seguido por longitud/ frecuencia y datos de CPUE por macarela y los datos hi storicos sabre captura y la identificacion de los estocks . La presentacion de cada tarea sigue el formato desarrollado par NOAA/ NMF S, Panama City y Mote Marine Laboratory. iv I NTRODUCTI ON This study wa s undertaken as part of an attempt to understand the migration and stock identity of the king mackerel, Scomberomorus caval1a, and the Spanish mackerel, S. maculatu5 , in the Gul f of Mexico. The NOAA/ NMFS Southeast Fisheries Ce nter's (SEFC) Panama City Laboratory, under the MARFIN Program, contracted with Mote Marine Laboratory (MMl) to work under the Mexus ­ Gulf Agreement to report length/ frequency distributions, catch per unit effort (CPUE) information, to obtain specimens for electrophoresis and to tag Spanish mackerel at specific Mexican l ocations (Figure 1). These locations were chosen so that the tagging effort would correspond with mackerel migration patterns off Mexico. Tagging efforts were co ncentrated off the State of Yucatan (Figure 2) duri ng the winter (Qua rter IV and Quart.e ,­ V) portion of the study. This report outlines MML 's success in achieving the above -mentioned goals. INTRODUCCION Como parte de un intento a en tend er la emigrac io n y identidad de l os estockes de peto (carito) Scomberomorus cava17a y sierra. S. macu7atus, en el Golfo de Mexico (SEFC) Panama City Laboratory bajo del Programa MARF IN, co ntrat6 con Mote Marine Laboratory (MM L) a trabajar co n el In stituto Nacional de la Pesca (INP) Mex i cano, bajo del acuerdo de MEX-US GULFO . Con la finalidad de reportar datos historicos so bre captura y otra informacion pertinente. obtener especimenes para electroforesi s y marcar sierra en localidades Mexicanas especificas (Figura 1). Estas local idades fueron escogidas de tal man era que el esfuerzo para marcar correspondiera con el patron de emigracion de la macarela en Mexico. Los esfuerzos para marcar se concentraron en el estado de Yucatan (Figura 2) durante la porcion de invierno (Trimestre IV y Tr ime stre V) en este estudio . Este in forme delinea el exito de MML para al canzar las meta s mencionadas anteriormente . I UNITED STATES MEXICO Gulf of M ex i c o N -):'t, - I I Sisal ~--n!l- -l,l- I sla Contoy Ce l estun Yu catan Veracruz Quintana Roo Mo x leo D ,F ". "*- ~ . P ac ifi c O ce an Mocambo Seybapl aya I Campe eile Fi gur"c 1. s panish mA. ckp.rel t ag rel ease l ocations, 1990-1 991 ( ~t-). r• .. .... • \ ",.. cU. "O d O VO . C U \ • / / / / // L Yucatan / / "l... •.•.:\ ,// /' {le..". \ // \ /// I \ /' ( \ /// \ // ) V I I C~ O "'DO!O" I I Quintana Roo i' I I I Campecha I Iii I I /r? I )UI I / I I I F igure 2. Mackerel length/ frequency and catch per unit effort (CPUE) locations (_) and important Mackerel tag release locations ({-1. 3 I. MOVEMENT AND MIGRATION OF MACKEREL A. Tagging Synopsis (January - March) As reported in the Quarter IV Report, MM L and PESCA biologists made numerous attempts to tag Spanish mackerel, but wer e thwarted by high winds and rough seas. For most of the months of November and December all of the fishing po rts were closed due to dangerous marine conditions. Wh en fishermen were able to work, they remained close to shore fis hing primarily for red grouper and octopus . A fe w fishermen ventured out off the coast t o fish for mackerel; four drowned. Because the bad weather lasted for the dUration of the tagging effort, it was not possible to tag any fi sh. Tags and equi pment were left with PESCA personnel from the Ce ntro Regional de In vestigacione s Pe sq uera-Yucal peten in order to all ow them t o tag fish when the bad weather ·subsided. CRIP-Yucalpeten personnel made va rious trips to the fishing village of Celestun (Figure 2.) during th e mo nths of January and February tq tag Span i sh mackerel and obtain length/frequency measurements. Th e data wa s ma i led to MML more than three weeks ago but never arrived. MML personnel wi l l obtain a copy of t he data on the way to Veracruz and include the information in the final report. B. Ta g Returns Four verified tags were returned during Quarter V. Tag (46,33 5) was fr om a king mackerel tagged off Port Aransas, Texas, on August 8, 1990 and recaptured off Sabancuy, Campeche on January 17 , 1991 -- a distance of 1100 miles in 153 days of freedom . Th e other t hree tags (E46301, E46 36 I & 09146) also wer e from king mackere l tagged off Texas. Tag s E4630I and E46361 both were from king mackerel tagged off Port Aransas, Texas. The mackerel with tag number E46301 was tagge d on 19 June, 1990, and recaptured on 12 December, 1990 off Coatzacoa lcos, Veracruz; 176 days of freedom and a distance of 740 miles. The mackerel with tag number E46361 was released on 29 June. 1990, and recaptured on 21 November, 1990 off Coatzacoalcos. Veracruz; after 115 days of freedom and 740 miles. Tag number 09146 was from a king ma cke rel tagged off Port Man sfield, Texa s on 28 June, 1987, and recaptured after 1311 days of freedom on 29 January, 1991 off La Blanquille. Vera cruz; a distance of 578 miles. All new tags are identified in Table 1 by asterisks.
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