The effect of marine protected areas on an exploited population of sex-changing temperate reef fish: an individual-based model

2008 ◽  
Vol 30 (2) ◽  
pp. 337-350 ◽  
Author(s):  
SE Kerwath ◽  
A Götz ◽  
CG Attwood ◽  
WHH Sauer
Keyword(s):  
Protected Areas ◽  
Reef Fish ◽  
Marine Protected Areas ◽  
Individual Based Model ◽  
Temperate Reef ◽  
Temperate Reef Fish

Spatial and habitat-related patterns of temperate reef fish assemblages: implications for the design of Marine Protected Areas

2002 ◽  
Vol 53 (8) ◽  
pp. 1197 ◽  
Author(s):  
Belinda G. Curley ◽  
Michael J. Kingsford ◽  
Bronwyn M. Gillanders
Keyword(s):  
Protected Areas ◽  
Reef Fish ◽  
Marine Protected Areas ◽  
Fish Assemblages ◽  
Rocky Reef ◽  
Depth Range ◽  
Temperate Reef ◽  
South Wales ◽  
Temperate Reef Fish ◽  
Rocky Reef Fish

Patterns of rocky reef fish assemblages (composition and relative abundance of species) were examined to provide data on the design of Marine Protected Areas (MPAs), which aim to protect these organisms. A hierarchical design was used to investigate changes in fish assemblages at scales of metres to kilometres along-shore, and among reef habitat types within two 10-km areas on the central coast of New South Wales, Australia. Influences of physical and biological attributes of a reef on assemblages of fish were also examined. The greatest variation in fish assemblages occurred at scales of 2–6 km along-shore. Eighty percent of species recorded were found within a 6-km section of coastline. The most predictable differences in assemblages were found between reef habitats (urchin-grazed barrens, Ecklonia forest and sponge habitat), and between depths. Marine Protected Areas should ideally incorporate all available habitats over the entire depth range at which they occur. This may require MPAs larger than 2–6 km, or multiple MPAs that have been specifically located to include these features, as representation of habitats was found to vary at scales of kilometres to tens of kilometres along shore.

A comparison of temperate reef fish assemblages recorded by three underwater stereo-video techniques

2005 ◽  
Vol 148 (2) ◽  
pp. 415-425 ◽  
Author(s):  
Dianne L. Watson ◽  
Euan S. Harvey ◽  
Marti J. Anderson ◽  
Gary A. Kendrick
Keyword(s):  
Reef Fish ◽  
Fish Assemblages ◽  
Temperate Reef ◽  
Stereo Video ◽  
Temperate Reef Fish

scholarly journals KONDISI IKAN KARANG FAMILI CHAETODONTIDAE DI DAERAH PERLINDUNGAN LAUT DESA BAHOI KECAMATAN LIKUPANG BARAT KABUPATEN MINAHASA UTARA

2015 ◽  
Vol 2 (3) ◽  
pp. 92
Author(s):  
Jacqline Laikun ◽  
Ari B Rondonuwu ◽  
Unstain N.W.J. Rembet
Keyword(s):  
Spatial Distribution ◽  
Coral Reef ◽  
Coral Reefs ◽  
Protected Areas ◽  
Reef Fish ◽  
Marine Protected Areas ◽  
Visual Census ◽  
Fish Family ◽  
Marine Life ◽  
Reef Condition

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

Rapid changes in life-history characteristics of a long-lived temperate reef fish

2007 ◽  
Vol 58 (12) ◽  
pp. 1096 ◽  
Author(s):  
Philippe E. Ziegler ◽  
Jeremy M. Lyle ◽  
Malcolm Haddon ◽  
Graeme P. Ewing
Keyword(s):  
Life History ◽  
Reef Fish ◽  
Stock Assessment ◽  
Contributing Factors ◽  
Young Males ◽  
Temperate Reef ◽  
Life History Characteristics ◽  
Rapid Changes ◽  
Temperate Reef Fish ◽  
Underlying Mechanisms

Banded morwong, Cheilodactylus spectabilis, a long-lived sedentary temperate reef fish, has undergone rapid changes in its growth and maturity characteristics along the east coast of Tasmania, Australia. Over a period of 10 years, growth of young males and females has consistently accelerated, such that in 2005, 3-year-old fish were up to 40 mm or 13% longer compared with 1996, and age at 50% maturity for females had declined from 4 to 3 years. The magnitude and speed of the observed changes were unexpected given the species’ longevity (maximum age of over 95 years). The underlying mechanisms for the changes remain unclear but density-dependent responses to changes in population size and age composition, possibly mediated through reduced competition for shelter and intra-specific interactions, may have been contributing factors. Increasing sea surface temperatures over part of the period of change does not appear to have been a major driver and a genetic response to fishing seems unlikely. Notwithstanding any uncertainty, C. spectabilis populations have become more productive in recent years, challenging the general approach towards stock assessment where life-history characteristics are assumed to remain stable across contrasting levels of stock abundance and environmental conditions.

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