Should we protect extirpated fish spawning aggregation sites?

Chollett, Iliana; Priest, Mark A.; Fulton, Stuart; Heyman, William D.

doi:10.1016/j.biocon.2019.108395

Cited by 23 publications

(28 citation statements)

References 59 publications

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“…2011; Chollett et al. 2020; Hamilton et al., 2011; Kobara et al., 2013; Nemeth, 2005) (Figure 1). For example, a fisher—scientist–manager partnership in the Cayman Islands monitoring FSAs for 15 years found that Nassau grouper populations had tripled in response to conservation efforts (Waterhouse et al., 2020).…”

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 95%

“…The data infrastructure will enhance knowledge exchange, permit status, and trends assessments (population structure, range shifts, changes in phenology), provide early warnings of ecosystem changes, and inform adaptive corrective actions. Long-term monitoring at locations where fishing communities have effectively removed or reduced fishing pressure on FSAs has shown that depleted FSAs can recover populations restoring ecosystem integrity and the flow of ecosystem goods and services (Aburto-Oropeza et al 2011;Chollett et al 2020;Hamilton et al, 2011;Kobara et al, 2013;Nemeth, 2005) (Figure 1). For example, a fisher-scientist-manager partnership in the Cayman Islands monitoring FSAs for 15 years found that Nassau grouper populations had tripled in response to conservation efforts (Waterhouse et al, 2020).…”

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 99%

“…In the Coral Triangle region, for example, regular monitoring of a small (<0.2 km 2 ) community-based MPA located at a fished FSA revealed a 10-fold increase in grouper (E. polyphekadion) density within 5 years of closure (Hamilton et al, 2011). Although evidence globally is scarce, scientific monitoring at once extirpated FSAs reveals that some (17%) of these sites too can recover when fishery closures are effectively implemented (Chollett et al 2020).…”

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 99%

“…Connectivity models now recognize fisheries as "small-world networks" where a few key spawning areas (nodes) supply larvae to many regions thereby increasing the risk of disproportionately widespread impact to regional sustainability from disturbance to just one of these pivotal sites (Claro, Lindeman, Kough, & Paris, 2019). Countries in West Africa, the Caribbean, Oceania, and Northern Europe have been predicted to be most vulnerable to disrupted flow of progeny from FSAs located in waters under the care of other nations, making it critical to understand where these important sites exist and the nature of their interdependencies (Ramesh, Rising, & Oremus, 2019 telemetry, and seascape genetics will help understand regional dispersal and retention patterns, population resilience to disturbance, and efficacy of conservation measures (Munguia-Vega et al, 2014) and assess the recovery potential of extirpated FSAs (Chollett et al, 2020). The geographic range of many tropical fishes is creeping poleward as a result of climate change.…”

Section: Fish Spawning Aggregations Transnational Connectivit Y Andmentioning

confidence: 99%

“…Although evidence globally is scarce, scientific monitoring at once extirpated FSAs reveals that some (17%) of these sites too can recover when fishery closures are effectively implemented (Chollett et al. 2020).…”

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 99%

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Life below water: Fish spawning aggregations as bright spots for a sustainable ocean

Pittman

Heyman

2020

CONSERVATION LETTERS

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Transient fish spawning aggregations (FSAs) are critical life-cycle events for many commercially important species, in which fish congregate in huge numbers to spawn at predictable times and places. This behavior makes them exceptionally vulnerable to fishing. The "illusion of plenty" and poor access to monitoring tools and techniques has resulted in some FSAs being overfished or unwittingly eliminated. We present a co-conservation network, formally linking site-focused partners who cooperatively monitor and actively manage multispecies FSAs. FSA sites and networks offer great potential as conservation bright spots to replenish fished populations, rehabilitate marine ecosystems, and ensure the flow of ecosystem services to the millions of people that rely upon them for their wellbeing. We call for urgent global recognition of FSAs as effective spatial nexus for addressing multiple interconnected global policy targets for a sustainable ocean. K E Y W O R D S adaptive management, ecological monitoring, fish habitat, fish spawning aggregations, fisheries management, protected areas, sustainable ocean

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Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 95%

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 99%

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 99%

Section: Fish Spawning Aggregations Transnational Connectivit Y Andmentioning

confidence: 99%

Section: Fish Spawning Aggregations As Sentinels Of Ecological Changementioning

confidence: 99%

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Life below water: Fish spawning aggregations as bright spots for a sustainable ocean

Pittman

Heyman

2020

CONSERVATION LETTERS

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Spatio‐temporal distribution of mutton snapper and dog snapper spawning aggregations in the South‐west Atlantic

França

Olavo

Rezende

et al. 2021

Aquatic Conservation

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1. Sites and periods of spawning aggregations of two important fishery resources, the mutton snapper, Lutjanus analis, and the dog snapper, Lutjanus jocu, were identified and validated along the Brazilian north-east coast (latitude 8-15 S) using exploratory analysis of catch per unit effort (CPUE) data, gonadosomatic index analysis, and gonad histology.2. The CPUE analysis for both species allowed the identification of outliers and far outliers, representing fisheries with exceptional catches, which were used as proxies of possible aggregation.3. The presence of pre-spawning and recent spawning signs (hydrated oocytes and post-ovulatory follicles) in the ovary of females caught at sites with recurrent records of high CPUE allowed the validation of spawning activity at those specific sites for each species. All aggregation sites identified in this study were located on

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Comparing Atlantic Cod Temporal Spawning Dynamics across a Biogeographic Boundary: Insights from Passive Acoustic Monitoring

Hoeck

Rowell

Dean³

et al. 2023

Mar Coast Fish

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Atlantic Cod Gadus morhua, which are overfished in the United States, are potentially vulnerable to disturbance from offshore wind energy (OWE) construction and operation during their spawning period. While many aspects of Atlantic Cod biology are well studied, little is known of their habitat use and spawning behavior at the extreme southern extent of the species' range. As Atlantic Cod form dense spawning aggregations and produce sounds associated with courtship behaviors, we used a combination of fixed-station and glider-based passive acoustic monitoring methods to evaluate the spatiotemporal spawning dynamics of Atlantic Cod in the Georges Bank stock. Additionally, we assessed potential interactions with OWE in designated offshore wind lease areas within southern New England waters of the western North Atlantic Ocean. Generalized linear modeling was used to evaluate correlations between cod grunt activity and multiple environmental cycles. Results from the southern New England spawning grounds were compared to similar data describing the geographically separated Massachusetts Bay winter-spawning subpopulation within the western Gulf of Maine stock. Temporal patterns in Atlantic Cod grunts suggest that spawning in southern New England waters is concentrated in November and December and is greatest near the new and full moons. Although there were fine-scale differences in the temporal dynamics of grunt presence between the two regions, the

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Should we protect extirpated fish spawning aggregation sites?

Cited by 23 publications

References 59 publications

Life below water: Fish spawning aggregations as bright spots for a sustainable ocean

Life below water: Fish spawning aggregations as bright spots for a sustainable ocean

Spatio‐temporal distribution of mutton snapper and dog snapper spawning aggregations in the South‐west Atlantic

Comparing Atlantic Cod Temporal Spawning Dynamics across a Biogeographic Boundary: Insights from Passive Acoustic Monitoring

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