Production and prey source of juvenile black rockfish Sebastes cheni in a seagrass and macroalgal bed in the Seto Inland Sea, Japan: estimation of the economic value of a nursery

Kamimura, Yasuhiro; Kasai, Atsushi; Shoji, Jun

doi:10.1007/s10452-011-9360-1

Cited by 26 publications

(16 citation statements)

References 19 publications

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“…Furthermore, previously observed seasonal changes of the fish communities on platforms, at least for more shallow depths, consisted primarily of the presence or absence of pelagic species (40) and these types of transient, highly mobile species (e.g., jack mackerel, Trachurus symmetricus, Pacific sardine, Sardinops sagax) were excluded from the data used for our production estimates. Finally, our Recruitment Production component is also conservative in a similar manner as the mortality function, as it does not include the production of fishes that recruited to the habitat and grew for some period, but died before being observed during the annual survey (6).…”

Section: Resultsmentioning

confidence: 99%

“…By integrating multiple metrics that can individually reflect aspects of fitness (e.g., density, biomass, growth, fecundity, survivorship, body size, life span), secondary production can be thought of as a general criterion of success for a population (3,4). Recent studies have extended this idea, using secondary fish production to provide a measure of the productive capacity and economic value of specific habitats within an ecosystem (5,6) and, in a few instances, to evaluate the efficacy of creating artificial reefs and other forms of habitat restoration (7)(8)(9). In ecological studies, static properties such as density or biomass are typical structural response variables, whereas the use of secondary production, a functional measure, has been mostly limited to freshwater and marine benthic invertebrate studies (4).…”

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confidence: 99%

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Oil platforms off California are among the most productive marine fish habitats globally

Claisse

Pondella

Love

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

218

165

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Secondary (i.e., heterotrophic or animal) production is a main pathway of energy flow through an ecosystem as it makes energy available to consumers, including humans. Its estimation can play a valuable role in the examination of linkages between ecosystem functions and services. We found that oil and gas platforms off the coast of California have the highest secondary fish production per unit area of seafloor of any marine habitat that has been studied, about an order of magnitude higher than fish communities from other marine ecosystems. Most previous estimates have come from estuarine environments, generally regarded as one of the most productive ecosystems globally. High rates of fish production on these platforms ultimately result from high levels of recruitment and the subsequent growth of primarily rockfish (genus Sebastes) larvae and pelagic juveniles to the substantial amount of complex hardscape habitat created by the platform structure distributed throughout the water column. The platforms have a high ratio of structural surface area to seafloor surface area, resulting in large amounts of habitat for juvenile and adult demersal fishes over a relatively small footprint of seafloor. Understanding the biological implications of these structures will inform policy related to the decommissioning of existing (e.g., oil and gas platforms) and implementation of emerging (e.g., wind, marine hydrokinetic) energy technologies.secondary production | ecosystem-based management | ecosystem services | energy technology | Sebastes

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Oil platforms off California are among the most productive marine fish habitats globally

Claisse

Pondella

Love

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

218

165

View full text Add to dashboard Cite

show abstract

“…Annual survivorship rates are incorporated in the model using the size- and species-specific mortality function described in Gislason et al [ 31 ]. The second component of Total Production is “Recruitment Production” which estimates production from the growth of post larval and pelagic juvenile fishes that settled or immigrated during the one year time interval and survived up to the time of survey (following reference [ 32 ]). In some cases fishes were not identified to species during surveys (see Table S3 in reference [ 22 ]).…”

Section: Methodsmentioning

confidence: 99%

Impacts from Partial Removal of Decommissioned Oil and Gas Platforms on Fish Biomass and Production on the Remaining Platform Structure and Surrounding Shell Mounds

et al. 2015

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When oil and gas platforms become obsolete they go through a decommissioning process. This may include partial removal (from the surface to 26 m depth) or complete removal of the platform structure. While complete removal would likely eliminate most of the existing fish biomass and associated secondary production, we find that the potential impacts of partial removal would likely be limited on all but one platform off the coast of California. On average 80% of fish biomass and 86% of secondary fish production would be retained after partial removal, with above 90% retention expected for both metrics on many platforms. Partial removal would likely result in the loss of fish biomass and production for species typically found residing in the shallow portions of the platform structure. However, these fishes generally represent a small proportion of the fishes associated with these platforms. More characteristic of platform fauna are the primarily deeper-dwelling rockfishes (genus Sebastes). “Shell mounds” are biogenic reefs that surround some of these platforms resulting from an accumulation of mollusk shells that have fallen from the shallow areas of the platforms mostly above the depth of partial removal. We found that shell mounds are moderately productive fish habitats, similar to or greater than natural rocky reefs in the region at comparable depths. The complexity and areal extent of these biogenic habitats, and the associated fish biomass and production, will likely be reduced after either partial or complete platform removal. Habitat augmentation by placing the partially removed platform superstructure or some other additional habitat enrichment material (e.g., rock boulders) on the seafloor adjacent to the base of partially removed platforms provides additional options to enhance fish production, potentially mitigating reductions in shell mound habitat.

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“…The majority of economic analyses conducted for forage fish fisheries have been one dimensional ), focusing on factors or management strategies affecting the direct value of these species as a landed commodity. Only a handful of studies have enumerated the indirect values that species targeted by fisheries provide Hannesson and Herrick 2010;Hunsicker et al 2010;Kamimura et al 2011). Because of their key position in marine food webs, the overall global importance of forage fish to fisheries and ecosystems has likely been significantly understated.…”

Section: Quality Of Ecopath Models 53mentioning

confidence: 99%

“…; Kamimura et al . ). Because of their key position in marine food webs, the overall global importance of forage fish to fisheries and ecosystems has likely been significantly understated.…”

Section: Introductionmentioning

confidence: 99%

The global contribution of forage fish to marine fisheries and ecosystems

et al. 2012

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Forage fish play a pivotal role in marine ecosystems and economies worldwide by sustaining many predators and fisheries directly and indirectly. We estimate global forage fish contributions to marine ecosystems through a synthesis of 72 published Ecopath models from around the world. Three distinct contributions of forage fish were examined: (i) the ecological support service of forage fish to predators in marine ecosystems, (ii) the total catch and value of forage fisheries and (iii) the support service of forage fish to the catch and value of other commercially targeted predators. Forage fish use and value varied and exhibited patterns across latitudes and ecosystem types. Forage fish supported many kinds of predators, including fish, seabirds, marine mammals and squid. Overall, forage fish contribute a total of about $16.9 billion USD to global fisheries values annually, i.e. 20% of the global ex‐vessel catch values of all marine fisheries combined. While the global catch value of forage fisheries was $5.6 billion, fisheries supported by forage fish were more than twice as valuable ($11.3 billion). These estimates provide important information for evaluating the trade‐offs of various uses of forage fish across ecosystem types, latitudes and globally. We did not estimate a monetary value for supportive contributions of forage fish to recreational fisheries or to uses unrelated to fisheries, and thus the estimates of economic value reported herein understate the global value of forage fishes.

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Production and prey source of juvenile black rockfish Sebastes cheni in a seagrass and macroalgal bed in the Seto Inland Sea, Japan: estimation of the economic value of a nursery

Abstract: The economic value of ecosystem services of vegetated habitats (seagrass and macroalgal beds)

Cited by 26 publications

References 19 publications

Oil platforms off California are among the most productive marine fish habitats globally

Oil platforms off California are among the most productive marine fish habitats globally

Impacts from Partial Removal of Decommissioned Oil and Gas Platforms on Fish Biomass and Production on the Remaining Platform Structure and Surrounding Shell Mounds

The global contribution of forage fish to marine fisheries and ecosystems

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