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Volumen     Biomasa/volumen      Tiempo de          Tiempo de       Ratio residencia
          Sistema             Bivalvo principal
                                                   (106 m3)       (g / m3)      aclaramiento (d.)   residencia (d.)    / aclaramiento

Askö                        Mejillón               4000             0,4                99                104               0,01
South San Francisco Bay     Varios                 2500             2,5               0,7               11.1               0,06
Oosterschelde               Mejillón/Berberecho    2740             3,1               3,7                 40               0,09
Chesapeake Bay (pasado)     Ostras                 27300                              3,3                 22               0,15
Chesapeake Bay (presente)   Varios                 27300                              325                 22              14,78
Baie de Brest               Varios                 1480             7,4               2,8               16,2               0,17
Marennes-Oleron Baie        Ostras                  675             4,2               2,7                7,1               0,38
Ría de Arousa               Mejillón               4335             1,6               12,4                23               0,54
Western Wadden Sea          Mejillón               4020             3,7               5,8                 10               0,58
Narragansen Bay             Almejas                2385                                25                 27               0,93
VALOR ECONÓMICO
                                                                        3,2
                                                          12,7                             23,8




                                                  23,8
                                                                                           36,5
Prod marina                                                                   MOLUSCOS
              2002    2003   2004   2005   2006
(Tm x 106)
                                                                              CRUSTÁCEOS



Captura       84,5    81,5   85,7   84,5   81,9                               PECES DIÁDROMOS


                                                                              PECES MARINOS

Acuicultura   16,4    17,2   18,1   18,9   20,1
                                                                              OTROS



Total         100,9   89,7   103,8 103,4   102                    6,5   2,1

                                                   13,1




                                                  19,6
                                                                                                  58,7

                                                                   PRODUCCIÓN
SFG = C – (F + R + U) = A – (R + U)                                            Restos Nitrogenados                   Metabolismo (Calor)

                BIVALVO SUSPENSÍVORO

                                  TEJIDOS DEL ANIMAL




                                        BRANQUIAS Y
                                        PALPOS
                 CAVIDAD PALEAL         LABIALES
                                                                                   Absorción
                                                                                                            Asimilación
                                                                                                     Pérdidas Endógenas




                                                             Ingestión
                                   Filtración




                                                                                                                             Heces
   Alimento                                                                             Material NO Absorbido
      en       Bombeo
  suspensión                                                                                             INTESTINO


                                                                         ESTOMAGO Y
                                                                         DIVERTÍCULOS
                                                                         DIGESTIVOS
                                                      No retenido




                                                        Pseudoheces                Biodeposición                     Heces



                                                1                                                                                     2
180



                            160



                            140
MASA ORG ÁNICA INDIVIDUAL




                            120


Cerastoderma edule          100



                             80



                             60



                             40



                             20
                                  0   200   400   600   800   1000   1200   1400   1600    1800
                                                                                    DÍAS
                                                          ESTIMADO (SFG)
               Estuario de Urdaibai                      DETERMINADO (MEDIDAS DE CAMPO)
Curvas P/B en M-Oleron
                            60


                            50
    Production (x1000 Tm)



                            40


                            30


                            20
                                                                                C. angulata
                            10
                                                                                C. gigas
                             0
                                 0   50       100             150   200   250
                                               Stock (x1000 Tm)




Baie de Marennes - Oléron
RELACIÓN ENTRE TASAS DE CRECIMIENTO REALES
                  Y ESTIMADAS (SFG)

20
                              GR= -6,01 +0,82 (±0,26) SFG
15

10

 5

 0   16   30 46   61   76   91 106 121 136 151 166 181 181 196 211


-5
                                 Días


              Bateas en la ría de Arosa
35                                                                               0.12




                                                                                                                                                                                                              AREAL PRODUCTION (Kg MEAT DRY WEIGHT / h/ m2
                                                                                                                                                                                                       0.11
                                                                                                                      30




                                                                                  PRODUCTION (KG MEAT DRY WEIGHT/H)
                                                                                                                                                                                                       0.10


                                                                                                                      25
                                                                                                                                                                                                       0.09

                                    35                                                                                                            0.12

                                                                                                                                                                                                       0.08




                                                                                                                                                         AREA PRODUCTION (KG MEAT DRY WEIGHT / H/ m2
                                                                                                                      20
                                                                                                                                                  0.11
                                    30                                                                                                                                                                 0.07
PRODUCTION (Kg MEAT DRY WEIGHT/h)




                                                                                                                      15                          0.10

                                                                                                                                                                                                       0.06
                                    25
                                                                                                                                                  0.09

                                                                                                                      10                                                                               0.05

                                                                                                                                                  0.08
                                    20


                                                                                                                                                  0.07

                                    15
                                                                                                                                                  0.06



                                    10                                                                                                        0.05
                                         100   150   200   250    300       350                                        400   450      500   550
                                                                 Raft area (m2)




                                                                 Production                                                        Areal production
1.00


                                 0.50




PRODUCCIÓN (Kg CARNE DW/h)
                                 0.00
                                        0.9   1.4     1.9         2.8        3.8        4.7
                                -0.50


                                -1.00


                                -1.50

                                                                                                  DRAG CONSIDERED
                                -2.00


                                -2.50
                                                                                              DRAG NOT CONSIDERED

                                -3.00

                                4.00


                                 3.50


                                3.00
   PRODUCCIÓN (Kg CARNE DW/h)




                                2.50


                                 2.00


                                 1.50


                                 1.00


                                 0.50


                                 0.00
                                        0.9   1.4      1.9        2.8        3.8        4.7
                                -0.50
                                                    DENSIDAD DE CUERDAS (CUERDAS/m 3)
y = 1,5384x + 11,557                               BOUZAS
                                                                                2
            25
                                                                              R = 0.7016, p<0.01                                  MOAÑA
                                                                                                                                  A GUIA
            20
                                                                                                                            REDONDELA

            15
                                                                                                                                 CANGAS
SFG (J/h)




                                                                                                                                 BAYONA
            10
                                                                                                                                                    25
                                                                     Bayona
                 5                                                 Cangas
                                                                 Redondela                                              04/06
                                                              A Guia                                                                                20
                 0                                           Moaña
                                                                                                   10/04                                07/04




                                                                                                                                                         SFG (J/h)
                                                        Bouzas
                      C.                                                                                     07/04
                            C.
                                 C. Oct                                                                                         10/04
                     Mar
                      06
                           Mar
                            05
                                   04
                                           C. Jul
                                                04
                                                                                       04/06                                                        15
                                                                                                                07/04
                                                                              10/04
                                                                                                     04/06
                                                                                                                                                    10
                                                                                                   10/04
                                                                          04/06
                                        03/05                                         03/05
                                                                                                                                                    5
                                                10/04
                                                                                                                                                    0
                     -8           -6                    -4               -2                    0               2                    4           6
                                                                                  PC1
                           SFG vs PC1                                                                                SFG vs ESTACIONES

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Ratio residencia/aclaramiento bivalvos sistemas acuícolas

  • 1.
  • 2.
  • 3. Volumen Biomasa/volumen Tiempo de Tiempo de Ratio residencia Sistema Bivalvo principal (106 m3) (g / m3) aclaramiento (d.) residencia (d.) / aclaramiento Askö Mejillón 4000 0,4 99 104 0,01 South San Francisco Bay Varios 2500 2,5 0,7 11.1 0,06 Oosterschelde Mejillón/Berberecho 2740 3,1 3,7 40 0,09 Chesapeake Bay (pasado) Ostras 27300 3,3 22 0,15 Chesapeake Bay (presente) Varios 27300 325 22 14,78 Baie de Brest Varios 1480 7,4 2,8 16,2 0,17 Marennes-Oleron Baie Ostras 675 4,2 2,7 7,1 0,38 Ría de Arousa Mejillón 4335 1,6 12,4 23 0,54 Western Wadden Sea Mejillón 4020 3,7 5,8 10 0,58 Narragansen Bay Almejas 2385 25 27 0,93
  • 4. VALOR ECONÓMICO 3,2 12,7 23,8 23,8 36,5 Prod marina MOLUSCOS 2002 2003 2004 2005 2006 (Tm x 106) CRUSTÁCEOS Captura 84,5 81,5 85,7 84,5 81,9 PECES DIÁDROMOS PECES MARINOS Acuicultura 16,4 17,2 18,1 18,9 20,1 OTROS Total 100,9 89,7 103,8 103,4 102 6,5 2,1 13,1 19,6 58,7 PRODUCCIÓN
  • 5. SFG = C – (F + R + U) = A – (R + U) Restos Nitrogenados Metabolismo (Calor) BIVALVO SUSPENSÍVORO TEJIDOS DEL ANIMAL BRANQUIAS Y PALPOS CAVIDAD PALEAL LABIALES Absorción Asimilación Pérdidas Endógenas Ingestión Filtración Heces Alimento Material NO Absorbido en Bombeo suspensión INTESTINO ESTOMAGO Y DIVERTÍCULOS DIGESTIVOS No retenido Pseudoheces Biodeposición Heces 1 2
  • 6. 180 160 140 MASA ORG ÁNICA INDIVIDUAL 120 Cerastoderma edule 100 80 60 40 20 0 200 400 600 800 1000 1200 1400 1600 1800 DÍAS ESTIMADO (SFG) Estuario de Urdaibai DETERMINADO (MEDIDAS DE CAMPO)
  • 7. Curvas P/B en M-Oleron 60 50 Production (x1000 Tm) 40 30 20 C. angulata 10 C. gigas 0 0 50 100 150 200 250 Stock (x1000 Tm) Baie de Marennes - Oléron
  • 8. RELACIÓN ENTRE TASAS DE CRECIMIENTO REALES Y ESTIMADAS (SFG) 20 GR= -6,01 +0,82 (±0,26) SFG 15 10 5 0 16 30 46 61 76 91 106 121 136 151 166 181 181 196 211 -5 Días Bateas en la ría de Arosa
  • 9. 35 0.12 AREAL PRODUCTION (Kg MEAT DRY WEIGHT / h/ m2 0.11 30 PRODUCTION (KG MEAT DRY WEIGHT/H) 0.10 25 0.09 35 0.12 0.08 AREA PRODUCTION (KG MEAT DRY WEIGHT / H/ m2 20 0.11 30 0.07 PRODUCTION (Kg MEAT DRY WEIGHT/h) 15 0.10 0.06 25 0.09 10 0.05 0.08 20 0.07 15 0.06 10 0.05 100 150 200 250 300 350 400 450 500 550 Raft area (m2) Production Areal production
  • 10. 1.00 0.50 PRODUCCIÓN (Kg CARNE DW/h) 0.00 0.9 1.4 1.9 2.8 3.8 4.7 -0.50 -1.00 -1.50 DRAG CONSIDERED -2.00 -2.50 DRAG NOT CONSIDERED -3.00 4.00 3.50 3.00 PRODUCCIÓN (Kg CARNE DW/h) 2.50 2.00 1.50 1.00 0.50 0.00 0.9 1.4 1.9 2.8 3.8 4.7 -0.50 DENSIDAD DE CUERDAS (CUERDAS/m 3)
  • 11. y = 1,5384x + 11,557 BOUZAS 2 25 R = 0.7016, p<0.01 MOAÑA A GUIA 20 REDONDELA 15 CANGAS SFG (J/h) BAYONA 10 25 Bayona 5 Cangas Redondela 04/06 A Guia 20 0 Moaña 10/04 07/04 SFG (J/h) Bouzas C. 07/04 C. C. Oct 10/04 Mar 06 Mar 05 04 C. Jul 04 04/06 15 07/04 10/04 04/06 10 10/04 04/06 03/05 03/05 5 10/04 0 -8 -6 -4 -2 0 2 4 6 PC1 SFG vs PC1 SFG vs ESTACIONES