Why Do Fish Populations Vary?

Sissenwine, Michael P.

doi:10.1007/978-3-642-70157-3_3

Cited by 229 publications

(131 citation statements)

References 24 publications

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“…This conclusion seems rooted in the findings of recruitment studies of benthic invertebrates (e.g. Gaines et al 1985) and not on studies performed on exploited temperate fish, where egg and larval abundance are routinely quantified and generally are not correlated with densities of juvenile fish (Sissenwine 1984). My results suggest that processes occurring at or within the first 24 h of settlement can decouple the supply of presettlement fish from patterns of settlement.…”

Section: Discussionmentioning

confidence: 75%

“…Although fisheries ecologists have emphasized the importance of the larval lifehistory stage in temperate waters, most studies have focused on large, often basin-scale, relationships between larval supply and recruitment (Sissenwine 1984). Additionally, fisheries ecologists tend to investigate large, highly mobile species rather than smaller, relatively site-attached reef fish.…”

mentioning

confidence: 99%

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Recruitment in a temperate demersal fish: Does larval supply matter?

Levin

1996

Limnology & Oceanography

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The importance of larval supply to spatial patterns of larval settlement and recruitment was determined for a common Gulf of Maine fish (the cunner Tautogolabrus adspersus). The number of presettlement pelagic fish differed among the four sites sampled. Inshore sites had significantly greater densities than offshore sites, and this difference was consistent over time. The average size of presettlement fish also differed; fish at inshore sites averaged -2 mm less in standard length than those at offshore sites. Settlement was quantified by using artificial substrata suspended above the benthos, and a nonsignificant trend for greater settlement at offshore vs. inshore sites was revealed. Recruitment surveys after the settlement season showed that densities of recruits were significantly greater offshore than inshore. Correlation analyses showed either significant inverse or nonsignificant relationships between densities of presettlement fish and settlement depending on the size of presettlement fish. The relationship between recruitment and densities of presettlement fish was not significant with each of the size classes of presettlement fish analyzed, but there was a strong positive relationship between settlement and recruitment.

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Section: Discussionmentioning

confidence: 75%

mentioning

confidence: 99%

Recruitment in a temperate demersal fish: Does larval supply matter?

Levin

1996

Limnology & Oceanography

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“…In the last 100 years, while industrialized fishing has reduced fish populations on a global scale (Pauly and MacClean 2003), vast effort has gone into explaining the variable and uncertain replenishment of marine populations (Sissenwine 1984). Highly variable recruitment dynamics (Roughgarden et al 1988), spatially structured populations, high fecundity, and almost total but variable mortality of the immature (larvae and juveniles) stages (Bailey and Houde 1989) are typical of marine organisms with complex life cycles.…”

Section: Introductionmentioning

confidence: 99%

Genetic Identity Determines Risk of Post-Settlement Mortality of a Marine Fish

Vigliola

Doherty

Meekan

et al. 2007

Ecology

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Abstract. Longitudinal sampling of four cohorts of Neopomacentrus filamentosus, a common tropical damselfish from Dampier Archipelago, Western Australia, revealed the evolution of size structure after settlement. Light traps collected premetamorphic individuals from the water column (''settlers'') to establish a baseline for each cohort. Subsequently, divers collected benthic juveniles (''recruits'') at 1-3-month intervals to determine the relative impacts of post-settlement mortality during the first three months. Growth trajectories for individual fish were back-calculated from otolith records and compared with nonlinear mixed-effects models. Size-selective mortality was detected in all cohorts with the loss of smaller, slower growing individuals. Three months after settlement, recruits showed significantly faster growth as juveniles, faster growth as larvae, and larger sizes as hatchlings. The timing and intensity of post-settlement selection differed among cohorts and was correlated with density at settlement. The cohort with the greatest initial abundance experienced the strongest selective mortality, with most of this mortality occurring between one and two months after settlement when juveniles began foraging at higher positions in the water column. Significant genetic structure was found between settlers and three-month-old recruits in this cohort as a result of natural selection that changed the frequency of mtDNA haplotypes measured at the control region. The extent of this genetic difference was enlarged or reduced by artificially manipulating the intensity of size-based selection, thus establishing a link between phenotype and haplotype. Sequence variation in the control region of the mitochondrial genome has been linked to mitochondrial efficiency and weight gain in other studies, which provides a plausible explanation for the patterns observed here.

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“…Several studies have focused on quantifying various aspects of the biology and ecology of youngof-the-year (age-0) bluefish; the potential importance of this life stage in determining future stock size of fishes is well documented (Sissenwine 1984;Wicker and Johnson 1987;Fogarty et al 1991;Buijse and Houthuijzen 1992). Specifically, diet composition, feeding behavior, and resource competition have received considerable attention (Juanes et al 1993;Buckel and Conover 1997;Buckel et al 1999a;Buckel and Stoner 2000;Buckel and McKown 2002;Scharf et al 2002;Able et al 2003, Scharf et al 2004, and collectively, these studies have contributed greatly to our understanding of age-0 bluefish feeding ecology.…”

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confidence: 99%

Diet Composition of Young‐of‐the‐Year Bluefish in the Lower Chesapeake Bay and the Coastal Ocean of Virginia

et al. 2006

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Abstract.-The lower Chesapeake Bay and coastal ocean of Virginia serve as an important nursery area for bluefish Pomatomus saltatrix. Describing the diet composition of young-of-the-year (hereafter, age-0) bluefish in this region is essential to support current Chesapeake Bay ecosystem modeling efforts and to contribute to the understanding of the foraging ecology of these fish along the U.S. Atlantic coast. The stomach contents of 404 age-0 bluefish collected from the lower Chesapeake Bay and adjacent coastal zone in 1999 and 2000 were examined as part of a diet composition study. Age-0 bluefish foraged primarily on bay anchovies Anchoa mitchilli, striped anchovies Anchoa hepsetus, and Atlantic silversides Menidia menidia. Other fishes such as striped bass Morone saxatilis, white perch Morone americana, Atlantic menhaden Brevoortia tyrannus, and bluefish were seasonally important. Crab zoea and megalope Callinectes spp. and amphipods Gammarus spp. were the most important invertebrate prey. A seasonal dietary shift from Atlantic silversides to anchovies was evident. Overall, small pelagic and littoral schooling fishes, particularly engraulids and atherinids, predominated in the diet of the age-0 bluefish collected for this study. Although the results presented here were similar to the diet composition of age-0 bluefish reported in previous studies, some notable differences were probably due to spatial and temporal differences in prey assemblages.

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Why Do Fish Populations Vary?

Cited by 229 publications

References 24 publications

Recruitment in a temperate demersal fish: Does larval supply matter?

Recruitment in a temperate demersal fish: Does larval supply matter?

Genetic Identity Determines Risk of Post-Settlement Mortality of a Marine Fish

Diet Composition of Young‐of‐the‐Year Bluefish in the Lower Chesapeake Bay and the Coastal Ocean of Virginia

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