Industry-based acoustic survey of Atlantic herring distribution and spawning dynamics in coastal Maine waters

Wurtzell, Katharine V.; Baukus, Adam J.; Brown, C.; Jech, J. Michael; Pershing, Andrew J.; Sherwood, Graham D.

doi:10.1016/j.fishres.2015.11.011

Cited by 6 publications

(5 citation statements)

References 19 publications

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“…However, temporal closures are typically set to predetermined dates; thus, as spawning times change or are better understood, closure times may need to be adjusted to maintain efficacy (Armstrong et al, 2013). For some species, such as Atlantic herring, ongoing monitoring of spawning condition of the fish is conducted to modify closure dates so they align with actual spawning times (Richardson, Hare, Overholtz, & Johnson, 2010;Wurtzell et al, 2016). Because the timing of closure dates can require multiple years of monitoring and rule iterations prior to implementation (Armstrong et al, 2013), adaptive management practices are needed to ensure closed spawning areas meet intended objectives and are flexible enough to accommodate increasing variability and extreme years (Walters, 1986).…”

Section: Implications For Fisheriesmentioning

confidence: 99%

It’s about time: A synthesis of changing phenology in the Gulf of Maine ecosystem

Staudinger

Mills

Stamieszkin

et al. 2019

Fisheries Oceanography

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The timing of recurring biological and seasonal environmental events is changing on a global scale relative to temperature and other climate drivers. This study considers the Gulf of Maine ecosystem, a region of high social and ecological importance in the Northwest Atlantic Ocean and synthesizes current knowledge of (a) key seasonal processes, patterns, and events; (b) direct evidence for shifts in timing; (c) implications of phenological responses for linked ecological‐human systems; and (d) potential phenology‐focused adaptation strategies and actions. Twenty studies demonstrated shifts in timing of regional marine organisms and seasonal environmental events. The most common response was earlier timing, observed in spring onset, spring and winter hydrology, zooplankton abundance, occurrence of several larval fishes, and diadromous fish migrations. Later timing was documented for fall onset, reproduction and fledging in Atlantic puffins, spring and fall phytoplankton blooms, and occurrence of additional larval fishes. Changes in event duration generally increased and were detected in zooplankton peak abundance, early life history periods of macro‐invertebrates, and lobster fishery landings. Reduced duration was observed in winter–spring ice‐affected stream flows. Two studies projected phenological changes, both finding diapause duration would decrease in zooplankton under future climate scenarios. Phenological responses were species‐specific and varied depending on the environmental driver, spatial, and temporal scales evaluated. Overall, a wide range of baseline phenology and relevant modeling studies exist, yet surprisingly few document long‐term shifts. Results reveal a need for increased emphasis on phenological shifts in the Gulf of Maine and identify opportunities for future research and consideration of phenological changes in adaptation efforts.

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Section: Implications For Fisheriesmentioning

confidence: 99%

It’s about time: A synthesis of changing phenology in the Gulf of Maine ecosystem

Staudinger

Mills

Stamieszkin

et al. 2019

Fisheries Oceanography

View full text Add to dashboard Cite

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“…Lights introduced by different types of platforms could potentially impact surveys that are conducted at (or near) nighttime, particularly those targeting small pelagic species that are distributed in relatively shallow waters. For example, spring surveys of capelin stocks in eastern Canada, occur to 25% during nighttime 27,28 , as do acoustic surveys on Atlantic herring in various regions [29][30][31] . Potential differences in acoustic backscatter response between day and night have been discussed for Atlantic herring (see ref.…”

Section: Discussionmentioning

confidence: 99%

Artificial light during the polar night disrupts Arctic fish and zooplankton behaviour down to 200 m depth

et al. 2020

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For organisms that remain active in one of the last undisturbed and pristine dark environments on the planet-the Arctic Polar Night-the moon, stars and aurora borealis may provide important cues to guide distribution and behaviours, including predator-prey interactions. With a changing climate and increased human activities in the Arctic, such natural light sources will in many places be masked by the much stronger illumination from artificial light. Here we show that normal working-light from a ship may disrupt fish and zooplankton behaviour down to at least 200 m depth across an area of >0.125 km 2 around the ship. Both the quantitative and qualitative nature of the disturbance differed between the examined regions. We conclude that biological surveys in the dark from illuminated ships may introduce biases on biological sampling, bioacoustic surveys, and possibly stock assessments of commercial and non-commercial species.

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“…Advantages for this approach include minimizing variance associated with using multiple vessels by maintaining a consistent sampling platform and having a vessel designed to satisfy data collection needs (Helser et al 2004). Although there are benefits to the deployment of dedicated research vessels, an increasing number of resource surveys are being conducted using a cooperative approach, where commercial fishing vessels are chartered as research platforms (Hanna 1995, Helser et al 2004, Runnebaum et al 2018, Thorson & Ward 2014, Wurtzell et al 2016. This type of approach can decrease research costs and increase stakeholder buy-in to survey, management, and assessment results (Hartley & Robertson 2006, Johnson & van Densen 2007, Wurtzell et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Although there are benefits to the deployment of dedicated research vessels, an increasing number of resource surveys are being conducted using a cooperative approach, where commercial fishing vessels are chartered as research platforms (Hanna 1995, Helser et al 2004, Runnebaum et al 2018, Thorson & Ward 2014, Wurtzell et al 2016. This type of approach can decrease research costs and increase stakeholder buy-in to survey, management, and assessment results (Hartley & Robertson 2006, Johnson & van Densen 2007, Wurtzell et al 2016). An additional benefit is the potential for flexibility in vessel selection afforded by having a large pool of vessels to address issues like mechanical malfunctions or vessel availability.…”

Section: Introductionmentioning

confidence: 99%

Examination into a Vessel Effect for a Multi-Vessel Industry-Based Sea Scallop Dredge Survey

Roman

Rudders

2022

Journal of Shellfish Research

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Generalized linear models (GLM) and generalized additive mixed models (GAMM) were developed to examine for differences in fishing power, also referred to as a vessel effect, for three commercial fishing vessels chartered by the Virginia Institute of Marine Science (VIMS). The vessels conducted a fishery-independent sea scallop dredge survey of the MidAtlantic sea scallop resource in 2015. Surveys have continued since 2015 using a multivessel approach, and understanding the implications of a potential vessel effect on scallop catch is important for management and assessment of the resource. Surveys are conducted yearly to support annual fishery specifications and contribute biological and catch data for stock assessments. Generalized linear models tested for an effect of vessel on the total number of scallops captured and indicated survey strata and rotational area were significant predictors. Generalized additive mixed models tested for a vessel effect on scallop catch-at-length with length, vessel, strata, rotational area, and an interaction of vessel and length as fixed effects and survey station as a random effect. Two preferred GAMM were identified for the catch-at-length analysis. One model indicated that strata and rotational area had significant effects on scallop catch-at-length, whereas the interaction term was not significant. The second model did not include the interaction term or vessel as a predictor. Results presented here are consistent with previous calibration studies conducted for scallop dredge surveys suggesting that scallop catch is robust to the effect of vessel and support the use of a suite of industry vessels in the VIMS sea scallop surveys.

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Industry-based acoustic survey of Atlantic herring distribution and spawning dynamics in coastal Maine waters

Cited by 6 publications

References 19 publications

It’s about time: A synthesis of changing phenology in the Gulf of Maine ecosystem

It’s about time: A synthesis of changing phenology in the Gulf of Maine ecosystem

Artificial light during the polar night disrupts Arctic fish and zooplankton behaviour down to 200 m depth

Examination into a Vessel Effect for a Multi-Vessel Industry-Based Sea Scallop Dredge Survey

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