Ecological Considerations in Fisheries Management: When Does it Matter?

Link, Jason S.

doi:10.1577/1548-8446(2002)027<0010:ecifm>2.0.co;2

Cited by 193 publications

(107 citation statements)

References 37 publications

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“…Mangel & Levin 2005, Link 2007). Doing so would be a practical implementation of ecosystem-based management (Link 2002a, Garcia et al 2003, Garcia 2005 and may help to avoid the potential for any future erosion of functional roles and the ecological benefits we derive from this important ecosystem. …”

Section: Discussionmentioning

confidence: 99%

“…Understanding responses of exploited marine communities to human-caused disturbances is a key requirement for implementing ecosystem approaches to management (Link 2002a, Garcia et al 2003, Garcia 2005. Marine fish communities in the northeast US continental shelf ecosystem (including Gulf of Maine and Georges Bank; hereafter the NEUS Large Marine Ecosystem [LME]) have been subjected to high levels of exploitation that escalated in the late 1950s and early 1960s and continued until the early 1990s when populations of economically important species reached historic lows (Fogarty & Murawski 1998, Link et al 2002.…”

Section: Introductionmentioning

confidence: 99%

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Compensation and recovery of feeding guilds in a northwest Atlantic shelf fish community

Auster

2009

Mar. Ecol. Prog. Ser.

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Disturbance of marine ecosystems from fishing has resulted in significant shifts in the composition of fish communities. Such changes can result in shifts in dominance of functional (trophic) guilds within communities and the role that guilds play in ecosystem functioning. In particular, studies in coral reef and kelp forest fish communities have demonstrated a low level of functional redundancy, yet few studies have examined fish communities from temperate large marine ecosystems. We compared the abundance and composition of feeding guilds (i.e. planktivores, benthivores, amphipod -shrimp feeders, crabivores, echinoderm feeders, shrimp-fish feeders, and piscivores) on the continental shelf of the northeast US across 4 decades (i.e. 1970s to the present), examining changes in guild structure to determine if: (1) there have been significant changes in the abundance of functional guilds within the fish community, (2) there have been significant changes within guilds, and (3) there are commonalities in responses with studies from other habitats. We found that 5 of the 7 guilds exhibited remarkable stability in abundance over time despite extreme levels of exploitation and shifts in the abundance of individual species. We suggest there are compensatory mechanisms within those guilds that resulted in, or are an outcome of, their functional role within the shelf fish community. Comparing our results with studies in more spatially discrete habitats such as coral reefs or kelp forests suggests that erosion of functionally redundancies may be related to the resolution involved, be it spatial extent of observations, movement patterns of fishes, taxonomic precision of functional role, or variations in the diversity of species interactions within these ecosystems. Regardless, to prevent any potential for erosion of functional roles, we recommend that guild structure be considered as a unit for monitoring and resource management.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compensation and recovery of feeding guilds in a northwest Atlantic shelf fish community

Auster

2009

Mar. Ecol. Prog. Ser.

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“…In some cases, direct removals of prey resources by piscivorous fi shes have been shown to rival or even exceed the removals by commercial fi sheries (Buckel et al, 1999c;Overholtz et al, 2000;Overholtz and Link, 2007). Therefore, fi sh trophic ecology is relevant to several aspects of fi sheries management (Link, 2002). With the general move toward multispecies and ecosystem-based approaches to fi sheries management, there is a need for more comprehensive information on food web structure, interspecifi c trophic interactions, and predator movements (Andrews and Harvey, 2013).…”

mentioning

confidence: 99%

Habitat and diet overlap of 4 piscivorous fishes: variation on the inner continental shelf off New Jersey

Wuenschel

Able²,

Vasslides³

et al. 2013

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Abstract-Piscivorous fishes, many of which are economically valuable, play an important role in marine ecosystems and have the potential to affect fish and invertebrate populations at lower trophic levels. Therefore, a quantitative understanding of the foraging ecology of piscivores is needed for ecosystem-based fishery management plans to be successful. Abundance and stomach contents of seasonally co-occurring piscivores were examined to determine overlap in resource use for Summer Flounder (Paralichthys dentatus; 206-670 mm total length [TL]), Weakfish (Cynoscion regalis; 80-565 mm TL), Bluefish (Pomatomus saltatrix; 55-732 mm fork length [FL]), and

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“…Further, because this is not a full life cycle model including complex estuarine and ocean dynamics, nothing is known about what happens to salmon successfully migrating downstream from the Scott River, where other density-dependent phenomenon may constrain the populations. Salmod is clearly not an ecosystem model (sensu Link, 2002), but instead a single species model whose "predictions" are limited to that target species.…”

Section: Discussion On Model Parameterization Interpreting Model Resultsmentioning

confidence: 99%

Ecological Considerations in Fisheries Management: When Does it Matter?

Cited by 193 publications

References 37 publications

Compensation and recovery of feeding guilds in a northwest Atlantic shelf fish community

Compensation and recovery of feeding guilds in a northwest Atlantic shelf fish community

Habitat and diet overlap of 4 piscivorous fishes: variation on the inner continental shelf off New Jersey

Assessment of factors limiting Klamath River fall Chinook salmon production potential using historical flows and temperatures

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