Biotic affinities of rocky reef fishes, invertebrates and macroalgae in different zones of the Port Davey marine protected area, south-western Tasmania

2010 ◽  
Vol 20 (3) ◽  
pp. 282-296 ◽  
Author(s):  
Graham J. Edgar ◽  
Neville S. Barrett
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Reef Fishes ◽  
Rocky Reef

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

scholarly journals Evidence of the top–down role of predators in structuring sublittoral rocky-reef communities in a Marine Protected Area and nearby areas of the Canary Islands

2008 ◽  
Vol 66 (1) ◽  
pp. 64-71 ◽  
Author(s):  
Sabrina Clemente ◽  
José Carlos Hernández ◽  
Alberto Brito
Keyword(s):  
Canary Islands ◽  
Protected Area ◽  
Marine Protected Area ◽  
Rocky Reef ◽  
Adult Density ◽  
Top Down ◽  
El Hierro ◽  
Reef Communities ◽  
Predation Rates

Abstract Clemente, S., Hernández, J. C., and Brito, A. 2009. Evidence of the top–down role of predators in structuring sublittoral rocky-reef communities in a Marine Protected Area and nearby areas of the Canary Islands. – ICES Journal of Marine Science, 66: 64–71. Differences in the sea urchin Diadema aff. antillarum population structure, which have been attributed to removal of predatory fish through overfishing, are observed throughout the Canary Islands. Low urchin abundances and a “desired conservation state” are currently found in Mar de Las Calmas Marine Protected Area and nearby fished areas (FAs) in El Hierro Island, in contrast to the occurrence of high urchin densities and the “undesired conservation state” in the highly FAs (HFAs) of Tenerife Island. Under these different levels of fishing pressure, we consider a set of ecological variables potentially affecting urchin populations (settlement, recruitment, adult urchin densities, predation rates, and abundance of urchin fish predators) to infer their magnitude and relative importance in addressing community-wide changes. No differences in settlement and recruitment rates were found, but predation pressure was higher in El Hierro, where adult density was low and predation rates were high. The combination of these factors provides evidence of a top–down control of sublittoral reef communities. Although the effect of protection was less clear, we demonstrate the positive effects of reduced fishing effort in enhancing trophic cascade processes and reducing the establishment of barren grounds.

The Use of an Unoccupied Aerial Vehicle ( UAV ) to Survey Shark Species Over Sand and Rocky‐Reef Habitats in a Marine Protected Area

2021 ◽  
Author(s):  
Kathryn A. Ayres ◽  
James T. Ketchum ◽  
Rogelio González‐Armas ◽  
Felipe Galván‐Magaña ◽  
Alex Hearn ◽  
...  
Keyword(s):  
Protected Area ◽  
Marine Protected Area ◽  
Rocky Reef ◽  
Shark Species ◽  
Aerial Vehicle

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

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 An Alien Invader is the Cause of Homogenization in the Recipient Ecosystem: A Simulation-Like Approach

Diversity ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 146 ◽  
Author(s):  
Carla Morri ◽  
Monica Montefalcone ◽  
Giulia Gatti ◽  
Paolo Vassallo ◽  
Chiara Paoli ◽  
...  
Keyword(s):  
Protected Area ◽  
Invasive Alien Species ◽  
Marine Protected Area ◽  
Rocky Reef ◽  
Comprehensive Database ◽  
Habitat Classification ◽  
Wide Range ◽  
Nw Italy ◽  
Alien Invader ◽  
Monitoring Activity

Biotic homogenization is an expected effect of biological invasions. Invasive alien species typically show great adaptability to a wide range of environmental conditions and may expand into different habitats, thus reducing the dissimilarity among the recipient communities. We tested this assumption by analyzing a comprehensive database (78 species × 229 samples) collected between 2012 and 2017 in the marine protected area of Portofino (NW Italy), where Caulerpa cylindracea, one of the worst invaders in the Mediterranean Sea, exhibits high substratum cover at depths between 1 m and 45 m in 14 different communities (identified according to the European Nature Information System EUNIS for habitat classification). Five samples for each of the eight depth zones (i.e., 5 m, 10 m, 15 m, 20 m, 25 m, 30 m, 35 m, and 40 m) were randomly re-sampled from the comprehensive database to produce a dataset of 67 species × 40 samples. Then, a second dataset of 66 species × 40 samples was simulated by excluding Caulerpa cylindracea. Both re-sampled datasets underwent multivariate analysis. In the presence of C. cylindracea, the overall similarity among samples was higher, thus indicating homogenization of the rocky reef communities of Portofino Marine Protected Area. Continued monitoring activity is needed to understand and assess the pattern and extent of C. cylindracea’s inclusion in the recipient ecosystems.

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