The impact of marine protected areas on temporal stability of fish species diversity

The influence of spatial, temporal and environmental factors on fish species diversity in headwater streams in Paraguay and Paraná basins, Brazil was examined. A total of 4,605 individuals were sampled, distributed in 60 species. The sampled streams in Paraná basin presented a larger total species richness (42) than Paraguay streams (40). However the estimated richness was larger in Paraguay basin (53) than Paraná streams (50). The streams of Paraná basin had a greater mean species richness and evenness, while more individuals per sample were found in the Paraguay basin. Difference between the sub-basins were found in the Paraguay basin, while for the basin of Paraná, richness and evenness vary significantly between the sub-basins, but the number of individuals varied seasonally. The most important environmental factors to species diversity and abundance were altitude, water temperature, stream width and stream depth for both the basins.

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Stability of spatial pattern of fish species diversity in the Strait of Sicily (central Mediterranean)

Biodiversity in Enclosed Seas and Artificial Marine Habitats - Developments in Hydrobiology ◽

10.1007/978-1-4020-6156-1_10 ◽

2007 ◽

pp. 117-124 ◽

Cited By ~ 1

Author(s):

G. Garofalo ◽

F. Fiorentino ◽

M. Gristina ◽

S. Cusumano ◽

G. Sinacori

Keyword(s):

Species Diversity ◽

Spatial Pattern ◽

Fish Species ◽

Central Mediterranean ◽

Strait Of Sicily ◽

Fish Species Diversity

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The Trend in Fish Species Diversity and abundance at Asejire Reservoir South Western Nigeria

Aquaculture & Fisheries ◽

10.24966/aaf-5523/100040 ◽

2021 ◽

Vol 5 (1) ◽

pp. 1-9

Author(s):

Augustine Omoike ◽

Keyword(s):

Species Diversity ◽

Fresh Water ◽

Fish Species ◽

Fisheries Resources ◽

Fish Species Diversity

The upsurge of population and industries around Asejire area necessitated a study into the fish species diversity and abundance for managerial purposes to determine the trend in the availability of fresh water fisheries resources in Asejire Reservoir within boundary of Oyo and Osun States in Nigerian

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eDNA metabarcoding as a biomonitoring tool for marine protected areas

10.1101/2020.08.20.258889 ◽

2020 ◽

Author(s):

Zachary Gold ◽

Joshua Sprague ◽

David J. Kushner ◽

Erick Zerecero ◽

Paul H. Barber

Keyword(s):

Protected Areas ◽

Fish Species ◽

Marine Protected Areas ◽

Marine Reserve ◽

Marine Ecosystem ◽

Site Occupancy ◽

Visual Methods ◽

Visual Census ◽

Underwater Visual Census ◽

Promising Alternative

AbstractMonitoring of marine protected areas (MPAs) is critical for marine ecosystem management, yet current protocols rely on SCUBA-based visual surveys that are costly and time consuming, limiting their scope and effectiveness. Environmental DNA (eDNA) metabarcoding is a promising alternative for marine ecosystem monitoring, but more direct comparisons to visual surveys are needed to understand the strengths and limitations of each approach. This study compares fish communities inside and outside the Scorpion State Marine Reserve off Santa Cruz Island, CA using eDNA metabarcoding and underwater visual census surveys. Results from eDNA captured 76% (19/25) of fish species and 95% (19/20) of fish genera observed during pairwise underwater visual census. Species missed by eDNA were due to the inability of MiFish 12S barcodes to differentiate species of rockfishes (Sebastes, n=4) or low site occupancy rates of crevice-dwelling Lythrypnus gobies. However, eDNA detected an additional 30 fish species not recorded in paired visual surveys, but previously reported from prior visual surveys, highlighting the sensitivity of eDNA. Significant variation in eDNA signatures by location (50m) and site (~1000m) demonstrates the sensitivity of eDNA to address key questions such as community composition inside and outside MPAs. Interestingly, eDNA results recorded higher species richness outside the MPA while visual surveys observed the opposite pattern. This result is likely caused by swamping effects of high fish abundance in MPAs that reduce detection probabilities of pelagic and intertidal taxa. Results demonstrate the utility of eDNA metabarcoding for monitoring marine ecosystems, providing an important complementary tool to visual methods.

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Habitat fragmentation due to Tehri dam construction reduces fish species diversity among Bhilangana river, Uttrakhand, India

THE ASIAN JOURNAL OF ANIMAL SCIENCE ◽

10.15740/has/tajas/13.2/62-67 ◽

2018 ◽

Vol 13 (2) ◽

pp. 62-67

Author(s):

Harpal Singh

Keyword(s):

Species Diversity ◽

Habitat Fragmentation ◽

Fish Species ◽

Dam Construction ◽

Tehri Dam ◽

Fish Species Diversity

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The importance of place: Unraveling the vulnerability of fisherman livelihoods to the impact of marine protected areas

Applied Geography ◽

10.1016/j.apgeog.2014.10.015 ◽

2015 ◽

Vol 59 ◽

pp. 88-97 ◽

Cited By ~ 16

Author(s):

Cheryl Chen ◽

David Lopez-Carr

Keyword(s):

Protected Areas ◽

Marine Protected Areas ◽

The Impact

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Surface water connectivity affects lake and stream fish species richness and composition

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/cjfas-2020-0090 ◽

2020 ◽

Author(s):

Katelyn B.S. King ◽

Mary Tate Bremigan ◽

Dana M Infante ◽

Kendra Spence Cheruvelil

Keyword(s):

Species Richness ◽

Surface Water ◽

Species Diversity ◽

Fish Species ◽

Spatial Scales ◽

Fish Communities ◽

Integrated Approach ◽

Stream Fish ◽

Recreational Resources ◽

Fish Species Diversity

Stream and lake fishes are important economic and recreational resources that respond to alterations in their surrounding watersheds and serve as indicators of ecological stressors on aquatic ecosystems. Research suggests that fish species diversity is largely influenced by surface water connectivity, or the lack thereof; however, few studies consider freshwater connections and their effect on both lake and stream fish communities across broad spatial extents. We used fish data from 559 lakes and 854 streams from the midwestern/northeastern United States to examine the role of surface water connectivity on fish species richness and community composition. We found that although lakes and streams share many species, connectivity had a positive effect on species richness across lakes and streams and helped explain species composition. Taking an integrated approach that includes both lake and stream fish communities and connectivity among freshwaters helps inform scientific understanding of what drives variation in fish species diversity at broad spatial scales and can help managers who are faced with planning for state, regional, or national scale monitoring and restoration.

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