scholarly journals Gorgonian octocoral community at Varadero coral reef in the Colombian Caribbean: diversity and spatial distribution

Author(s):  
Nelson Manrique Rodríguez ◽  
Claudia Agudelo ◽  
Adolfo Sanjuan-Muñoz

Varadero reef has unique ecological characteristics and faces the risk of disappearing because of the dredging for an access channel of large vessels to the Cartagena port in Colombia. In this ecosystem, the sessile benthic community, such as gorgonian octocorals and associated fauna, will be impacted. We examined the diversity and spatial distribution of gorgonians from seven sites located in the mixed coral reef zone. These organisms are generally found in depths between 6 and 10 m in the area. The richness of the gorgoniansspecies is lower than that recorded in other areas of the Caribbean. The low values of abundance and richness species are due to the characteristics of reef setoff and sedimentation processes existing in Cartagena bay.

2020 ◽  
Author(s):  
Carlos González-Gándara ◽  
Ernesto A. Chávez

The state on knowledge of fish communities associated with coral reefs of the southern Gulf of Mexico (Veracruz, Campeche bank), and eastern Yucatan on the Caribbean is reviewed, in addition to a description of the main fisheries of the area. The review includes coral reef fish of Veracruz, the Campeche Bank, and reefs running along the Caribbean coast up to the border with Belize. Data recorded suggest that the heterogeneity of different levels (region, reef and reef zone) may be responsible for a larger number of niches available, promoting higher specific diversity that is more evident in the Caribbean reefs. The environmental conditions create patterns of differential abundance among the three zones. The main regional fisheries include more than 60 species and the current yield suggests a 30% reduction compared to catch volumes recorded a few years ago. The changes in coral coverage and the fishing pressure over coral reefs have exerted effects on species of fishing importance.


2016 ◽  
Vol 97 (6) ◽  
pp. 1417-1422 ◽  
Author(s):  
Barbara Calcinai ◽  
Azzurra Bastari ◽  
Daisy M. Makapedua ◽  
Carlo Cerrano

Mangroves create unique ecological environments, furnishing a habitat opportunity for many species. The majority of published information on mangrove sponges comes from the Caribbean while few data are available from Indo-Pacific mangrove sponges. In general, species diversity of sponges in mangroves is lower than adjacent subtidal habitats in both the Caribbean and Indo-Pacific. The aim of this study is to report the first data about sponge species diversity of two mangrove forests from Bangka Island (North Sulawesi, Indonesia) and to describe a new sponge species associated with the mangroves. The survey found 19 species, belonging to 11 families and 15 genera; the samples were collected on mangrove trunks, on the roots or on the surrounding bottom. The majority of the species are typical of coral reef but two of them have been previously found only in lagoons or in mangrove habitats. These new data enlarge our knowledge about Indonesian sponges diversity and suggest the urgency to consider Indonesian mangroves as an important but underestimated element in coral reef ecological dynamics.


2015 ◽  
Vol 2 (3) ◽  
pp. 92
Author(s):  
Jacqline Laikun ◽  
Ari B Rondonuwu ◽  
Unstain N.W.J. Rembet

The coral reefs are a sundry of marine life. Which one is reef fish in family Chaetodontidae. This fish is  indicator of the coral reef condition. The aim from the research is : discover of spatial distribution of the reef fish family Chaetodontidae and find out of the intercourse of reef fish family Chaetodontidae with the coral reef presence based on growth of coral form. The research was do in the coral reef at Marine Protected Areas in Bahoi Village District of West Likupang North Minahasa Regency, on Tuesday, December 23rd, 2014. The research is using to do the surveying method. The data is collecting distribution of the fish Chaetodontidae (amount from species and individuals to using by technic visual census). The total of reef fish family Chaetodontidae those found in Marina Protected Areas in Bahoi Village is about 20 species, with total of the individuals at a depth of 3 meters and 10 meters is (56,66 and 57,33 individuals/150m2). Keywords : Coral reefs, Chaetodontidae, Bahoi   ABSTRAK Terumbu karang merupakan tempat berbagai macam biota laut. Salah satu Ikan karang adalah ikan famili Chaetodontidae. Ikan ini merupakan ikan indikator terumbu karang. Tujuan dari penelitian ini : mengetahui kelimpahan dari ikan karang famili Chaetodontidae. Penelitian ini dilakukan di Daerah Perlindungan Laut Desa Bahoi Kecamatan Likupang Barat Kabupaten Minahasa Utara, pada hari selasa, tanggal 23 Desember 2014. Penelitian ini menggunakan metode survey. Data yang dikumpulkan adalah kelimpahan ikan Chaetodontidae (Jumlah spesies dan individu dengan menggunakan teknik sensus visual). Jumlah ikan karang famili Chaetodontidae yang di temukan di Daerah Perlindungan Laut Desa Bahoi berjumlah 20 spesies, dengan jumlah individu pada kedalaman 3 meter dan 10 meter berjumlah (56,66 individu/150m2 dan 57,33/150m2 individu). Kata kunci : Terumbu karang, Chaetodontidae, Bahoi 1Bagian dari skripsi 2Mahasiswa Program Studi Manajemen Sumberdaya Perairan FPIK-UNSRAT 3Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi


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2018 ◽  
Vol 14 (4) ◽  
pp. 617-629
Author(s):  
José Luis Tello-Musi ◽  
Ricardo González-Muñoz ◽  
Fabián H. Acuña ◽  
Nuno Simões

The sea anemone Calliactis tricolor (Le Sueur, 1817) is an ecologically important member of the benthic community in coastal and coral reefs of the tropical Atlantic, particularly for their propensity to establish mutualistic symbiotic relationships with hermit crabs. This species is presumably distributed throughout the Gulf of Mexico; however, it had never been recorded in the southwestern part of the Gulf. Here we document the first record of C. tricolor in 2 coral reef localities of the Veracruz reef system, Mexico, and update the number of species of sea anemones known for the region.


2017 ◽  
Vol 90 (4) ◽  
pp. 1356-1387 ◽  
Author(s):  
T. Correa-Herrera ◽  
M. Barletta ◽  
A. R. A. Lima ◽  
L. F. Jiménez-Segura ◽  
L. B. Arango-Sánchez

Coral Reefs ◽  
2017 ◽  
Vol 36 (2) ◽  
pp. 355-367 ◽  
Author(s):  
Didier M. de Bakker ◽  
Fleur C. van Duyl ◽  
Rolf P. M. Bak ◽  
Maggy M. Nugues ◽  
Gerard Nieuwland ◽  
...  

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