scholarly journals Evaluating the Effects of a Deep-Water Marine Protected Area a Decade After Closure: A Multifaceted Approach Reveals Equivocal Benefits to Reef Fish Populations

2021 ◽  
Vol 8 ◽  
Author(s):  
Brendan J. Runde ◽  
Jeffrey A. Buckel ◽  
Paul J. Rudershausen ◽  
Warren A. Mitchell ◽  
Erik Ebert ◽  
...  
Keyword(s):  
Reef Fish ◽  
Deep Water ◽  
Protected Area ◽  
Marine Protected Area ◽  
Biological Effects ◽  
Reef Fishes ◽  
Control Area ◽  
Fish Populations ◽  
Catch Per Unit Effort ◽  
Hurdle Models

Marine protected areas (MPAs) are increasingly used to rebuild fish populations. In 2009, eight MPAs were designated off the southeast United States with the goal of rebuilding populations of long-lived deep-water reef fishes. We tested whether reef fish within the largest of these MPAs, the Snowy Wreck Marine Protected Area (SWMPA), have increased in size and abundance relative to a nearby control area and compared to pre-closure. Hurdle models fitted through Bayesian inference on echosounder data collected in 2007–2009 and 2018–2020 yielded no evidence of an MPA effect. Comparisons of catch-per-unit-effort (CPUE) of all reef fishes yielded similar null results. However, CPUE of reef species with formal stock assessments increased 47% in the SWMPA and decreased 50% in the control area. We found significant increases in mean length of red porgy (Pagrus pagrus) inside the SWMPA but not in the control area. We also found community composition changes, including shifts away from groupers (Serranidae; Epinephelinae) and toward snappers (Lutjanidae) and tilefish (Malacanthidae) in both areas, though we did not detect an MPA effect with this analysis. Our equivocal results indicate that more time and stricter enforcement may be necessary before more biological effects of the SWMPA can be detected.

scholarly journals Preliminary assessment of surf-zone and estuarine line-fish species of the Dwesa-Cwebe Marine Protected Area, Eastern Cape, South Africa

Koedoe ◽  
2012 ◽  
Vol 54 (1) ◽  
Author(s):  
Jan A. Venter ◽  
Bruce Q. Mann
Keyword(s):  
South Africa ◽  
Law Enforcement ◽  
Fish Species ◽  
Protected Area ◽  
Surf Zone ◽  
Marine Protected Area ◽  
Fish Populations ◽  
Estuarine Fish ◽  
Catch Per Unit Effort ◽  
Preliminary Assessment

A preliminary assessment of surf-zone and estuarine line fish was carried out in the DwesaCwebe Marine Protected Area (MPA), on the Wild Coast, South Africa. The purpose was to provide baseline data on inshore line-fish stocks in the MPA. A total of 28 species was recorded, of which 53% have a conservation status reflecting some concern and 43% are endemic to southern Africa. This highlights the value of the MPA for protection of important line-fish species. Within the MPA, localised differences were detected in species diversity, size frequency and catch per unit effort between unexploited and illegally exploited areas. These differences were more prominent in slow growing, long-lived species. It thus appears that illegal exploitation is negatively affecting fish populations within the MPA, which counteract and potentially could eliminate the benefits of fish protection typically associated with no-take MPAs. These results highlight the need for improved law enforcement and better communication with neighbouring communities to increase awareness. It is further recommended that the current no-take status of the MPA should be maintained. In addition, baseline fisheries information was collected on certain fish species that could be used to inform future conservation management of the MPA.Conservation implications: The Dwesa-Cwebe Marine Protected Area is unique and important for the conservation of key surf zone and estuarine fish species. However there is a significant risk to the fish populations due to illegal exploitation. Key interventions should include enhanced law enforcement but, more important, the creation of alternative livelihoods and long term sustainable benefits to local communities.

The importance of biophysical context in understanding marine protected area outcomes for coral reef fish populations

Coral Reefs ◽  
2021 ◽  
Author(s):  
Robert Y. Fidler ◽  
Dominic A. Andradi-Brown ◽  
Awaludinnoer ◽  
Defy Pada ◽  
Purwanto ◽  
...  
Keyword(s):  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Protected Area ◽  
Marine Protected Area ◽  
Fish Populations

scholarly journals BIODIVERSITY OF REEF FISHES IN MARINE PROTECTED AREA OF KARIMUNJAWA NATIONAL PARK

2017 ◽  
Vol 9 (1) ◽  
pp. 29
Author(s):  
Ernik Yuliana ◽  
Mennofatria Boer ◽  
Achmad Fahrudin ◽  
M. Mukhlis Kamal
Keyword(s):  
Reef Fish ◽  
Protected Area ◽  
National Park ◽  
Marine Protected Area ◽  
Coral Cover ◽  
Secondary Data ◽  
Reef Fishes ◽  
Primary Data ◽  
The Third ◽  
Central Java

<p><em>Karimunjawa National Park (KNP) has a high diversity of coral reef and fish. This study is aimed to analyze the biodiversity of reef fish in KNP. Field survey was conducted in KNP, District of Jepara, Central Java, in April-Juni 2015. Primary data was obtained by using survey and observation method,   includes the number of reef fish individuals per family, coral cover, turbidity, total nitrogen (N), and PO<sub>4</sub>. Secondary data were obtained from KNP authority. Belt transect method was used for counting the number of reef fish individuals, while coral cover was measured using line intercept transect (LIT) method. Abundance and biomass of reef fishes were analyzed descriptively, followed by cluster analysis. The results indicated that the average of coral cover in 2015 was 44.70%. The highest coral cover was in Taka Malang with 65.65% and the lowest was in Nirwana with 35.45%. The reef fish’s abundance in 2015 was dominated by Pomacentridae (60.46%) with an abundance of 14,850 </em><em>no</em><em>/ha, the second position was Caesionidae (11.77%) with an abundance of 2,892 </em><em>no</em><em>/ha, the third was Scaridae (6.27%) with an abundance of 1,540 </em><em>no</em><em>/ha. The highest biomass in 2015 was Scaridae (122.33 kg/ha), the second order was Caesionidae (104.91 kg/ha), and the third was Serranidae (50.80 kg/ha). Reef fish biodiversity in KNP is considering properly maintained, as demonstrated by high abundance and biomass of fish families. </em></p><p><strong><em> </em></strong></p><strong><em>Keywords</em></strong><em>: biodiversity, reef fish, Karimunjawa, marine protected area</em>

scholarly journals BIODIVERSITY OF REEF FISHES IN MARINE PROTECTED AREA OF KARIMUNJAWA NATIONAL PARK

2017 ◽  
Vol 9 (1) ◽  
pp. 29-43
Author(s):  
Ernik Yuliana ◽  
Mennofatria Boer ◽  
Achmad Fahrudin ◽  
M. Mukhlis Kamal
Keyword(s):  
Reef Fish ◽  
Protected Area ◽  
National Park ◽  
Marine Protected Area ◽  
Coral Cover ◽  
Secondary Data ◽  
Reef Fishes ◽  
Primary Data ◽  
The Third ◽  
Central Java

Karimunjawa National Park (KNP) has a high diversity of coral reef and fish. This study is aimed to analyze the biodiversity of reef fish in KNP. Field survey was conducted in KNP, District of Jepara, Central Java, in April-Juni 2015. Primary data was obtained by using survey and observation method,   includes the number of reef fish individuals per family, coral cover, turbidity, total nitrogen (N), and PO4. Secondary data were obtained from KNP authority. Belt transect method was used for counting the number of reef fish individuals, while coral cover was measured using line intercept transect (LIT) method. Abundance and biomass of reef fishes were analyzed descriptively, followed by cluster analysis. The results indicated that the average of coral cover in 2015 was 44.70%. The highest coral cover was in Taka Malang with 65.65% and the lowest was in Nirwana with 35.45%. The reef fish’s abundance in 2015 was dominated by Pomacentridae (60.46%) with an abundance of 14,850 no/ha, the second position was Caesionidae (11.77%) with an abundance of 2,892 no/ha, the third was Scaridae (6.27%) with an abundance of 1,540 no/ha. The highest biomass in 2015 was Scaridae (122.33 kg/ha), the second order was Caesionidae (104.91 kg/ha), and the third was Serranidae (50.80 kg/ha). Reef fish biodiversity in KNP is considering properly maintained, as demonstrated by high abundance and biomass of fish families.  Keywords: biodiversity, reef fish, Karimunjawa, marine protected area

Enhanced numbers of two temperate reef fishes in a small, partial-take marine protected area related to spearfisher exclusion

2013 ◽  
Vol 167 ◽  
pp. 435-445 ◽  
Author(s):  
B.G. Curley ◽  
T.M. Glasby ◽  
A.J. Curley ◽  
R.G. Creese ◽  
M.J. Kingsford
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Reef Fishes ◽  
Temperate Reef
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