Temporal changes of the fish community in seagrass beds in Funakoshi and Otsuchi bays after habitat destruction caused by a tsunami in 2011

2021 ◽  
Author(s):  
Jun Shoji ◽  
Kentaro Yoshikawa ◽  
Takeshi Tomiyama ◽  
Tomohiko Kawamura
Keyword(s):  
Fish Community ◽  
Temporal Changes ◽  
Habitat Destruction ◽  
Seagrass Beds

Temporal changes in a demersal fish and cephalopod community of an unexploited coastal area in Northern Australia

1984 ◽  
Vol 35 (6) ◽  
pp. 747 ◽  
Author(s):  
SF Rainer
Keyword(s):  
Water Temperature ◽  
Seasonal Changes ◽  
Fish Community ◽  
Demersal Fish ◽  
Temporal Changes ◽  
Tropical Fish ◽  
Trawl Survey ◽  
Depth Range ◽  
Local Abundance ◽  
Different Seasons

A trawl survey of the south-eastern Gulf of Carpentaria carried out at the beginning of a commercial prawn fishery in the 1960s provided data on the demersal fish of an unexploited tropical fish community. The extent of temporal variation in this community was investigated using abundance data on 359 taxa of fish and cephalopods over 13 months in 1963-1964. Seasonal changes in water temperature and salinity were large, particularly in nearshore waters. Catch rates and species richness in nearshore waters were highest during summer, and in offshore waters during autumn or winter. Shannon diversity was variable, with no clear seasonal component. Temporal changes in community composition resulted in large changes between different seasons in the structure of site groups derived by classification; temporal effects within seasons were also found. The numerically dominant species were the leatherjackets Paramonacanthus spp., the ponyfish Equulites leuciscus, the tripodfish Tripodichthys blochii, and the saury Saurida undosquamis. Squid, the ponyfish Leiognathus sp. nr blochi, the butterfly-bream Nemipterus tolu and the grunter Pomadasys maculatus were seasonally abundant. Although species were restricted in their depth range, discrete communities that maintained their identity in different seasons were apparently absent. The relative abundance of many species varied substantially wirh season and probably also over a longer period. Small changes in local abundance were often associated with movement to deeper water at times of high nearshore water temperature (summer) or of reduced nearshore salinity (autumn). Large seasonal changes occurred in the local abundance of estuarine and semidiadromous species. The community shared many species with the demersal fish community of the Gulf of Thailand. It is suggested that similar structural changes in the fish community of the Gulf of Carpentaria may occur in response to intensive fishing. Further research on the effects of demersal fishing and on the interactions of the demersal fish community with commercially important crustaceans is necessary.

scholarly journals Fish Community Structure in Seagrass Beds of Doreri Bay Manokwari Regency

2020 ◽  
pp. 17-29
Author(s):  
Wilhelmus Reinaldo Pattipeilohy ◽  
Thomas Frans Pattiasina ◽  
Simon Petrus Octavianus Leatemia ◽  
Selfanie Talakua
Keyword(s):  
Community Structure ◽  
Coastal Waters ◽  
Fish Community ◽  
Fish Communities ◽  
Seagrass Beds ◽  
Fish Community Structure ◽  
Fish Resources ◽  
Seagrass Ecosystems ◽  
Observation Times ◽  
Descriptive Method

One of the coastal ecosystems that has a high primary productivity, seagrass, makes it a places to find foods (feeding ground), spawn (spawning ground), and shelter for most fish. Whether the structure of fish communities on seagrass beds in the coastal waters of Doreri Bay based on day and night observation times is different from previous studies. This study aims to examine the structure of fish communities on seagrass beds in the coastal waters of Doreri Bay, between the time of observation and compared to previous studies. Data collection takes place during April-May 2019. The method used in this study is a descriptive method, using 1 and 1.5 inch gills net. The results of the study found that seagrass beds in Doreri Bay waters were more than in previous studies, which consisted of 10 species of seagrasses from 2 families (Hydrocharitaceae and Cymodoceaceae). The composition of fish is 56 species with a total of 91 individuals during the day and 189 individuals at night. Fish community structure in Doreri Bay waters has moderate diversity and uniformity while low dominance. Efforts should be made to protect seagrass ecosystems so that fish resources in the Doreri Bay region are maintained.

Temporal changes in benthic communities of seagrass beds impacted by a tsunami in the Andaman Sea, Thailand

2010 ◽  
Vol 87 (2) ◽  
pp. 246-252 ◽  
Author(s):  
Napakhwan Whanpetch ◽  
Masahiro Nakaoka ◽  
Hiroshi Mukai ◽  
Takao Suzuki ◽  
Satoshi Nojima ◽  
...  
Keyword(s):  
Benthic Communities ◽  
Temporal Changes ◽  
Andaman Sea ◽  
Seagrass Beds

scholarly journals FISH COMMUNITY STRUCTURE IN DIFFERENT SEAGRASS BEDS OF BARRANG LOMPO ISLAND

2010 ◽  
Vol 2 (2) ◽  
Author(s):  
Rohani Ambo Rappe
Keyword(s):  
Fish Community ◽  
Diversity Index ◽  
Structural Complexity ◽  
Physical Nature ◽  
Ecological Function ◽  
Community Diversity ◽  
Seagrass Beds ◽  
Fish Community Structure ◽  
Seagrass Meadows ◽  
Leaf Density

<p>The importance of seagrass meadows as a habitat for fishes, including several of economic importance, is widely acknowledged. The complexity of seagrass beds might offer a different condition of habitat for fishes. The physical nature of the seagrass canopy is thought to play a major role, potentially influencing available shelter, food, and protection from predators. Structural complexity of seagrass such as shoot and leaf density is also an important factor in determining ecological function of seagrass in the marine environment. The objective of the research is to assess the ecological function of different seagrass beds (in terms of spesies and density) in supporting fish community. The study found 28 species of fish originating from 14 families and Pomacentridae were dominantly found. Abundance of fish found to be higher in seagrass beds with high densities both composed by one species of seagrass (monospesific) or by more than one species of seagrass (multispesific), compared to the seagrass beds with low density and bare areas. Fish community diversity index was found higher in dense seagrass beds composed of many species of seagrass compared to the rare and consists of only one species of seagrass. The presence of epiphytes as nutrients for the fish that live in seagrass beds may contribute to the finding.</p><p>Keywords: Seagrass, fish, Barrang Lompo Island</p>

scholarly journals Temporal changes in seagrass beds of Sanriku Coast before and after the Great East Japan Earthquake

2017 ◽  
Vol 83 (4) ◽  
pp. 659-663 ◽  
Author(s):  
MASAHIRO NAKAOKA ◽  
HITOSHI TAMAKI ◽  
DAISUKE MURAOKA ◽  
MAKOTO TOKUOKA ◽  
TERUHISA KOMATSU ◽  
...  
Keyword(s):  
Temporal Changes ◽  
Great East Japan Earthquake ◽  
Seagrass Beds ◽  
Sanriku Coast ◽  
Before And After

scholarly journals THE COMPOSITION OF SPECIES AND STRUCTURE OF SEAGRASS FISH COMMUNITY IN TANJUNG TIRAM – INNER AMBON BAY

2012 ◽  
Vol 4 (1) ◽  
Author(s):  
Husain Latuconsina ◽  
M. Natsir Nessa ◽  
Rohani Ambo Rappe
Keyword(s):  
Fish Community ◽  
Neap Tide ◽  
Nursery Ground ◽  
Seagrass Beds ◽  
Fish Community Structure ◽  
Siganus Canaliculatus ◽  
Seagrass Ecosystems ◽  
Management And Conservation ◽  
Swept Area

<p>The study was conducted in March - May 2011 in the coastal waters of Tanjung Tiram – inner Ambon bay. The aims of the study were to determine the composition of species and structure of fish communities in seagrass beds ecosystems. Fish were collected every spring and neap tide for three month periode with a swept area method using beach seine. Fishes were collected as many as 6444 individuals representing 68 species from 29 families. Siganus canaliculatus was contributed up to 62.91% of the total individual fish found.The fish community structure was varied between spring and neap tide. Index of dominance was in low category, diversity in medium, and evenness in unstable conditions. Moreover, the results indicated that seagrass ecosystems in Tanjung Tiram (TAD) have an important role as spawning, nursery ground, and feeding ground. Therefore, management and conservation efforts are urgently needed to maintain the ecological role of seagrass ecosystems for the sustainability of the fish resources.</p><p>Keywords: Seagrass beds, fish community, tanjung tiram, inner Ambon Bay</p>

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