LIFE HISTORY LIFE HISTORY PARAMETERS OF COMMON PARAMETERS OF COMMON

NEARSHORE MARINE NEARSHORE MARINE FISHES FISHES

MBC Applied Environmental SciencesMBC Applied Environmental Sciences

Project TeamProject Team

Project ManagerProject ManagerMBC Applied Environmental SciencesMBC Applied Environmental Sciences

Charles Mitchell, Project ManagerCharles Mitchell, Project ManagerEric Miller, presentingEric Miller, presenting

SubcontractorsSubcontractorsVantunaVantuna Research Group, Occidental CollegeResearch Group, Occidental College

Dan PondellaDan Pondella

Biology Department, Whittier CollegeBiology Department, Whittier CollegeSteven GoldbergSteven Goldberg

Proposed StudiesProposed StudiesAdultAdult

Age and GrowthAge and GrowthYellowfinYellowfin croaker croaker ((Umbrina roncadorUmbrina roncador) and ) and queenfish (queenfish (Seriphus Seriphus polituspolitus))

FecundityFecunditySpotfinSpotfin croaker (croaker (Roncador Roncador stearnsiistearnsii) and ) and yellowfinyellowfincroakercroaker

Spawning SeasonalitySpawning SeasonalityYellowfinYellowfin croakercroaker

Larval Daily GrowthLarval Daily GrowthQueenfish, Queenfish, spotfinspotfin croaker, croaker, white croaker white croaker ((Genyonemus lineatusGenyonemus lineatus))

MethodsMethods

AdultAdultAge and GrowthAge and Growth

Transverse sectioned Transverse sectioned saggitalsaggital otolithsotoliths

FecundityFecundityCount mature Count mature oocytesoocytes of a subsection of ovaryof a subsection of ovary

Spawning SeasonalitySpawning SeasonalityHistological analysisHistological analysis

Early Life HistoryEarly Life HistoryDaily band formation on Daily band formation on saggitalsaggital otolithsotoliths

0

50

100

150

200

250

300

350

400

450

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Years

SL (m

m)

Parameters EstimatedParameters Estimated

GroupingGrouping LL∞∞ KK tt00

All (n=1209)All (n=1209) 307.75307.75 0.2780.278 --0.9950.995

All females & Immature (n=726)All females & Immature (n=726) 313.17313.17 0.3070.307 --0.7710.771

All males & Immature (n=744)All males & Immature (n=744) 298.89298.89 0.2690.269 --1.0721.072

Maximum reported size: 556 mm TL Pt. Loma Kelp-Mike Shane

458 mm SL and 2181 g

0102030405060708090

Apr

-95

Jun-

95A

ug-9

5O

ct-9

5A

pr-9

6Ju

n-96

Aug

-96

Oct

-96

Apr

-97

Jun-

97A

ug-9

7O

ct-9

7A

pr-9

8Ju

n-98

Aug

-98

Oct

-98

Apr

-99

Jun-

99A

ug-9

9O

ct-9

9A

pr-0

0Ju

n-00

Aug

-00

Oct

-00

Apr

-01

Jun-

01A

ug-0

1O

ct-0

1A

pr-0

2Ju

n-02

Aug

-02

Oct

-02

Apr

-03

Jun-

03A

ug-0

3O

ct-0

3A

pr-0

4Ju

n-04

Aug

-04

Oct

-04

Jun-

05O

ct-0

5Ju

n-06

Oct

-06

Sampling Period

Mea

n C

PUE

0

5

10

15

20

25

Mea

n SS

T

CatchSST

r = 0.63, p < 0.001

0

200

400

600

800

1000

1200

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Mea

n M

ontly

Abu

ndan

ce p

er S

urve

y

0

5

10

15

20

25

Mea

n M

onth

ly S

ST

(C)

Mean MonthlyAbundanceMean Monthly SST

0

1000

2000

3000

4000

5000

6000

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004

# of

rec

ruits

9

10

11

12

13

14

15

16

17

18

SST

A = 0.4492, Z = 0.5694

1993-2004: r = 0.832, p = 0.0008

Hindcast recruitment calculated from annual survivorship (1-A)

Queenfish Age and GrowthQueenfish Age and Growth

0

50

100

150

200

250

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14Age

Sta

ndar

d Le

ngth

(mm

)

ObservedPredicted

Recruitment TrendsRecruitment Trends

02468

1012141618

1988 1990 1992 1994 1996 1998 2000 2002 2004

Kel

p C

anop

y A

rea

(km

2 )

00.511.522.533.54

SO

NG

S Y

OY

Abu

ndan

ceKelpSONGS YOY

0

100

200

300

400

500

600

1994 1996 1998 2000 2002 2004

Abu

ndan

ce

Z = 0.4176

LongLong--Term Impingement TrendTerm Impingement Trend

0

500

1000

1500

2000

2500

3000

3500

4000

4500

19801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005

HBG

S A

bund

ance

0102030405060708090100

SO

NG

S A

bundance

HBGSSONGS

Cumulative Annual Mean Daily Cumulative Annual Mean Daily Flow for RBGS, ESGS, and HBGSFlow for RBGS, ESGS, and HBGS

0

0.5

1

1.5

2

2.5

1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005

Mea

n D

aily

Flo

w (b

g) Actual Flow

Permitted Flow (York and Foster 2005)

Abundance TrendsAbundance Trends

0

5

10

15

20

25

30

35

40

19741976197819801982198419861988199019921994199619982000200220042006

Traw

l Abu

ndan

ce

0

100

200

300

400

500

600

Larv

al D

ensi

ty (#

/100

0m3 )

HBGS & SONGS Trawl AbuKH Mean Larval Density

LagCross

CorrelationStd.

Error(a)

-7.451 .213

-6 .535 .209

-5 .615 .204

-4 .588 .200

-3 .614 .196

-2 .665 .192

-1 .603 .189

0 .558 .186

1 .533 .189

2 .485 .192

3 .283 .196

4 .383 .200

5 .210 .204

6 .033 .209

7 .100 .213

FecundityFecundity

BF = 31658e0.0066SL

R2 = 0.5054

0

50000

100000

150000

200000

250000

300000

350000

400000

450000

190 210 230 250 270 290 310 330Standard Length (mm)

Indi

vidu

al B

atch

Fec

undi

ty

BF = 2E-07SL5.0109

R2 = 0.7854

0

100000

200000

300000

400000

500000

600000

700000

800000

200 220 240 260 280 300 320Standard Length (mm)

Bat

ch F

ecun

dity

BF Range: 35,169 - 640,703 BF Range: 99,259 - 405,967

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Jun Jul Aug Sep

Stage 4Stage 3Stage 2Stage 1

YellowfinYellowfin Croaker Spawning Croaker Spawning SeasonalitySeasonality

SpotfinSpotfin Croaker Daily GrowthCroaker Daily GrowthL = 0.1777[age] + 1.8574

R2 = 0.7037

0.00.51.01.52.02.53.03.54.04.55.05.56.06.57.07.58.08.59.0

0 5 10 15 20 25 30

Age (d)

Leng

th (m

m)

SpotfinSpotfin Croaker Seasonal GrowthCroaker Seasonal Growth

April HatchL = 0.1192(age) + 2.0139

R2 = 0.4076

August HatchL = 0.2721(age) + 0.0196

R2 = 0.7281

June HatchL = 0.2474(age) + 0.4898

R2 = 0.7009

0.00.51.01.52.02.53.03.54.04.55.05.56.06.57.07.58.0

0 5 10 15 20 25 30 35

Age (d)

Leng

th (m

m)

Queenfish Daily GrowthQueenfish Daily Growth

TotalL = 0.6524age0.7102

R2 = 0.7643

June & July 2004L = 0.1807age + 1.5976

R2 = 0.8673

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

0 5 10 15 20 25 30 35 40 45 50 55Age (d)

Leng

th (m

m)

May 1978Age = -2.185+4.54(L)

Queenfish Seasonal GrowthQueenfish Seasonal Growth

ARSS, F = 4.30, p = 0.02

TotalL = 0.1789age + 1.9037

R2 = 0.7474

June & July HatchL = 0.1807age + 1.5976

R2 = 0.8673

August HatchL = 0.1935age + 1.7893

R2 = 0.6378

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

2 7 12 17 22 27 32 37 42 47

Age (d)

Leng

th (m

m)

White Croaker Daily GrowthWhite Croaker Daily Growth

L = 0.1842(age)1.0589

R2 = 0.8653

00.5

11.5

22.5

33.5

44.5

55.5

66.5

77.5

88.5

99.510

10.511

0 5 10 15 20 25 30 35 40

Age (d)

Leng

th (m

m)

SpotfinSpotfin Croaker MortalityCroaker Mortality

Shift in predators, Shift in predators, prey, or habitat usage prey, or habitat usage may cause a higher may cause a higher mortality rate around mortality rate around 15 days old?15 days old?Oblique tows may not Oblique tows may not capture larger larvae capture larger larvae that may have already that may have already settled near the settled near the bottombottom

y = -0.0689x + 1.8161R2 = 0.1162

y = -0.1704x + 4.6291R2 = 0.9085

0

0.5

1

1.5

2

2.5

0 5 10 15 20 25 30Age (d)

Ln A

bund

ance

Early larvaeLate Larvae

SummarySummary

AdultAdultAge and GrowthAge and Growth

YellowfinYellowfin CroakerCroakerTo 15 yearsTo 15 yearsLL∞∞ = 307.75, k = 0.278, t= 307.75, k = 0.278, t00 = = --0.9950.995Recruitment in general decline BightRecruitment in general decline Bight--widewide

QueenfishQueenfishTo 12 yearsTo 12 yearsLL∞∞ = 181.122, k = 0.27, t= 181.122, k = 0.27, t00 = = --1.4801.480Population in decline since midPopulation in decline since mid--1980s1980s

Poor recruitment and larval productionPoor recruitment and larval production

SummarySummary

AdultAdultFecundityFecundity

SpotfinSpotfin croakercroakerBF = 2EBF = 2E--07SL07SL5.01095.0109

35,169 35,169 -- 640,703 eggs640,703 eggsYellowfinYellowfin croakercroaker

BF = 31658eBF = 31658e0.0066SL0.0066SL

99,259 99,259 –– 405,967 eggs405,967 eggs

Spawning SeasonalitySpawning SeasonalitySummer Summer spawnerspawner, principally in July, principally in JulyFinished by SeptemberFinished by September

SummarySummary

Early Life HistoryEarly Life HistorySpotfinSpotfin croakercroaker

Seasonally dependent growth rateSeasonally dependent growth rateHighest in late summerHighest in late summer

QueenfishQueenfishGrowth consistent with previous unpublished workGrowth consistent with previous unpublished workSeasonally dependent growth rateSeasonally dependent growth rate

Higher in summer than springHigher in summer than spring

White croakerWhite croakerGrowth rate consistent with Growth rate consistent with spotfinspotfin and queenfishand queenfish

PeerPeer--Reviewed Literature DevelopedReviewed Literature DevelopedPapers in PressPapers in Press

Pondella, D. J. II, J. T. Pondella, D. J. II, J. T. FroeschkeFroeschke, L. S. Wetmore,, L. S. Wetmore, E. Miller, C. F. Valle, and L. E. Miller, C. F. Valle, and L. Medeiros. in press. Demographic parameters of Medeiros. in press. Demographic parameters of yellowfinyellowfin croaker, croaker, Umbrina Umbrina roncadorroncador, (, (Perciformes:SciaenidaePerciformes:Sciaenidae) from the southern California Bight. Pacific ) from the southern California Bight. Pacific Science.Science.

Paper in Review Paper in Review Batch fecundity and spawning seasonality of Batch fecundity and spawning seasonality of yellowfinyellowfin croaker (croaker (Umbrina Umbrina roncadorroncador: : SciaenidaeSciaenidae) from southern California. ) from southern California. CalCOFICalCOFI Reports.Reports.Batch fecundity of Batch fecundity of spotfinspotfin croaker (croaker (Roncador stearnsiiRoncador stearnsii) from southern California. ) from southern California. CienciasCiencias Marinas.Marinas.

Papers in PreparationPapers in PreparationLife history, ecology, and longLife history, ecology, and long--term demographics of queenfish (term demographics of queenfish (Seriphus politusSeriphus politus) ) from southern California.from southern California.Daily growth patterns and ecology of two larval Daily growth patterns and ecology of two larval sciaenidssciaenids, queenfish (, queenfish (Seriphus Seriphus polituspolitus) and white croaker () and white croaker (Genyonemus lineatusGenyonemus lineatus), offshore of Huntington Beach, ), offshore of Huntington Beach, California.California.The life history of The life history of spotfinspotfin croaker (croaker (Roncador stearnsiiRoncador stearnsii) within the Southern ) within the Southern California Bight, a cradle to grave perspective.California Bight, a cradle to grave perspective.

Recommended Future ResearchRecommended Future Research

Continue life history studies to expand modeling potentialContinue life history studies to expand modeling potentialEarly life historyEarly life history

New stratified sampling to allow for mortality calculationNew stratified sampling to allow for mortality calculationOne set of sampling stations in Santa Monica Bay (3 One set of sampling stations in Santa Monica Bay (3 powerplantspowerplants), one near ), one near LA/OC border in San Pedro Bay (4 LA/OC border in San Pedro Bay (4 powerplantspowerplants))Area covered by SCCOOS surface current mapping or deploy ADCPArea covered by SCCOOS surface current mapping or deploy ADCPConcentrate on spring/summer to maximize effort Concentrate on spring/summer to maximize effort

Candidate species: garibaldi, black croaker, white Candidate species: garibaldi, black croaker, white seabassseabass, California , California corbina, corbina, yellowfinyellowfin croaker, croaker, salemasalema, , ParalabraxParalabrax sppspp, silversides, California , silversides, California halibut, Pacific pompanohalibut, Pacific pompano

Adult life history studiesAdult life history studiesAge and growth on understudied forage and/or fishery species thaAge and growth on understudied forage and/or fishery species that are t are impinged/entrainedimpinged/entrainedFecundity studiesFecundity studiesCandidate species: silversides, California corbina, Pacific pompCandidate species: silversides, California corbina, Pacific pompano, black ano, black croaker, croaker, salemasalema

Dual Function for this data: Inform CWIS assessment and MPA ProcDual Function for this data: Inform CWIS assessment and MPA Processess

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