scholarly journals Seagrass-associated fish species’ richness: evidence to support conservation along the south coast of Lombok Island, Indonesia

2021 ◽  
Vol 22 (2) ◽  
Author(s):  
Abdul Syukur ◽  
Agil Al Idrus Idrus ◽  
Lalu Zulkifli
Keyword(s):  
Species Richness ◽  
Fish Species ◽  
Local Scale ◽  
Statistical Analyses ◽  
South Coast ◽  
Small Scale ◽  
Observation Data ◽  
The South ◽  
Commercial Fish ◽  
Lombok Island

Abstract. Syukur A, Al-Idrus A, Zulkifli L. 2021. Seagrass-associated fish species’ richness: evidence to support conservation along the South Coast of Lombok Island, Indonesia. Biodiversitas 22: 988-998. The concept of seagrass conservation at a global scale tends to be less appropriate with regard to the environmental conditions at the regional and local scales, and thus, there is a need for scientific studies at the regional and local scales to support conservation measures. This research aimed to describe the importance of seagrass conservation based on the species richness of seagrass-associated fish. Data were collected from seven seagrass locations using surveys and observation. Data on the fish species present were collected with the gear used by small-scale fishermen to catch fish in the seagrass area and the surrounding waters. Data analysis was descriptive; the statistical analyses performed included calculation of the Shannon-Wiener index of diversity (H '), the Simpson evenness index (E), and the Morisita species richness index (D) as well as cluster analysis. All statistical analyses were performed in IBM SPSS Statistics 25. We found 104 fish species belonging to 38 families. Leiognathidae, Apogonidae, Clupeidae, Carangidae, Channidae, Sillaginidae, and Mullidae are families with high abundance, and 16 fish species have an abundance of individuals above the average value (192 individuals) of the total number of individuals (20,352). Meanwhile, 94.37% of the fish families are the target catch of small-scale fishermen (commercial fish). The diversity of fish species associated with seagrass in the study location is evidence of the survival of seagrass provision services at the local scale for fish. Therefore, scientific evidence of the species richness of fish, species yang domina, and its importance for small-scale fisheries at each seagrass bed in the study location can be used as a source of information for increasing and improving seagrass conservation efforts at the local scale.

scholarly journals Testing biodiversity theory using species richness of reef-building corals across a depth gradient

2019 ◽  
Vol 15 (10) ◽  
pp. 20190493 ◽  
Author(s):  
T. Edward Roberts ◽  
Sally A. Keith ◽  
Carsten Rahbek ◽  
Tom C. L. Bridge ◽  
M. Julian Caley ◽  
...  
Keyword(s):  
Species Richness ◽  
Large Scale ◽  
Coral Species ◽  
Environmental Gradients ◽  
Abiotic Factors ◽  
Empirical Support ◽  
Null Model ◽  
Local Scale ◽  
Small Scale ◽  
Energy Availability

Natural environmental gradients encompass systematic variation in abiotic factors that can be exploited to test competing explanations of biodiversity patterns. The species–energy (SE) hypothesis attempts to explain species richness gradients as a function of energy availability. However, limited empirical support for SE is often attributed to idiosyncratic, local-scale processes distorting the underlying SE relationship. Meanwhile, studies are also often confounded by factors such as sampling biases, dispersal boundaries and unclear definitions of energy availability. Here, we used spatially structured observations of 8460 colonies of photo-symbiotic reef-building corals and a null-model to test whether energy can explain observed coral species richness over depth. Species richness was left-skewed, hump-shaped and unrelated to energy availability. While local-scale processes were evident, their influence on species richness was insufficient to reconcile observations with model predictions. Therefore, energy availability, either in isolation or in combination with local deterministic processes, was unable to explain coral species richness across depth. Our results demonstrate that local-scale processes do not necessarily explain deviations in species richness from theoretical models, and that the use of idiosyncratic small-scale factors to explain large-scale ecological patterns requires the utmost caution.

scholarly journals Management of gillnet fisheries in the south coast of the state of São Paulo, Brazil

2014 ◽  
Vol 86 (3) ◽  
pp. 1227-1237 ◽  
Author(s):  
JOCEMAR T. MENDONÇA ◽  
ALINEIDE L.C. PEREIRA
Keyword(s):  
Marine Protected Area ◽  
Sao Paulo ◽  
The State ◽  
South Coast ◽  
Small Scale ◽  
Fishing Industry ◽  
São Paulo ◽  
The South ◽  
Private Interests ◽  
South Of Brazil

Gillnetting is one of the most practiced fishing methods adopted in the South of Brazil and has been increasingly expanding over the last years. This paper presents the characterization of the activity and discusses its management, in accordance to results from the discussions on the development of regulations on net fisheries in the South Coast Marine Protected Area (APAMLS) in the state of São Paulo. Gillnet fleets are formed by small-scale boats, with low autonomy, and lower fishing capacity, when compared to boats from other ports in the South and Southeast. However, the number of fishing units is high, reaching 1,709 units operating in the South coast of São Paulo in 2010. This kind of fleet uses several types of gillnets, and the activity may be classified according to the fishery type (industrial, coastal artisanal and estuarine artisanal). The activity was discussed in the APAMLS and the fishing industry, with the participation of all segments, and a proposal for gillnetting regulation was reached. The results suggested that gillnet length for industrial fisheries should be reduced by 30%. It must be emphasized that without effective inspection measures leading the fishing industry to believe in the enforcement of the proposal, private interests of the most influential political sectors may cause the process to retrocede.

scholarly journals KEANEKARAGAMAN SERANGGA DALAM TANAH DI PANTAI ENDOK LOMBOK BARAT

2012 ◽  
Vol 7 (2) ◽  
Author(s):  
M. Liwa Ilhamdi
Keyword(s):  
Diversity Index ◽  
South Coast ◽  
Insect Diversity ◽  
The South ◽  
North Shore ◽  
The North ◽  
Tidal Area ◽  
Soil Insects ◽  
Lombok Island

Abstrak:  Penelitian ini bertujuan untuk  mengetahui keanekaragaman serangga dalam tanah  di pantai Endok Lombok Barat.  Sampel  serangga diambil dengan metode bor tanah dan dilanjutkan dengan metode berlesse tullgren. Pengambilan sampel dilakukan empat kali ulangan pada tiga stasiun yaitu stasiun I di sebelah utara pantai Endok, stasiun II bagian tengah, dan stasiun III di sebelah  selatan pantai Endok. Pada tiap stasiun terdiri dari 3 tempat yaitu area pasang surut, tengah dan zona pescapre. Selanjutnya data penelitian dianalisis dengan menggunakan indeks keanekaragaman Shannon Wiener. Hasil penelitian  nilai indeks keanekaragaman 1,27. Dari hasil penelitian di  atas dapat disimpulkan bahwa keanekaragaman serangga dalam tanah di pantai Endok Lombok Barat tergolong rendah.Kata-kata  kunci : Keanekaragaman, Serangga, Pantai Endok   Abstract: This research aims to determine the diversity of true soil insects at  coast of Endok Lombok island West. Sampling wasdone by the method of insect drill ground and continued with tullgren berlesse method. Samples were taken at three stations are first station on the north shore Endok, Station  II on the centre and Station III on the  south coast Endok. At each station is composed of 3 tidal area, central and pescapre zone. The data was analyzed using ShannonWiener diversity index. The result diversity index value1.27. From result of research above can be concluded that true soil insect diversity at coastal of Endok west Lombok island  is low category. Keywords : Diversity, Insect, Endok coastal

Biometric relation between body size and otolith size of seven commercial fish species of the south-western Atlantic

2018 ◽  
Vol 34 (5) ◽  
pp. 1176-1179 ◽  
Author(s):  
Daniel Alvares Silveira de Assis ◽  
Jonas de Andrade Santos ◽  
Leonardo Evangelista de Moraes ◽  
Alexandre Clistenes de Alcântara Santos
Keyword(s):  
Body Size ◽  
Fish Species ◽  
The South ◽  
Western Atlantic ◽  
Commercial Fish ◽  
Otolith Size

scholarly journals Distribution and Diversity of Echinoderms in the Coastal Waters of South Beach of Lombok Island

2021 ◽  
Vol 21 (1) ◽  
pp. 22
Author(s):  
Syamsul Bahri ◽  
Lalu Raftha Patech ◽  
Zulhalifah Zulhalifah ◽  
Devi Ayu Septiani ◽  
Siswadi Siswadi
Keyword(s):  
Distribution Pattern ◽  
Coastal Waters ◽  
Diversity Index ◽  
Distribution Patterns ◽  
Common Species ◽  
South Coast ◽  
The South ◽  
Wiener Diversity Index ◽  
Diadema Setosum ◽  
Lombok Island

Echinoderms are benthic animals that can be found in almost all marine ecosystems but are mostly found in the intertidal coastal zone. Echinoderms play an important role as deposit feeders. This study aims to look at the distribution patterns, diversity, and habitat conditions of species in the southern coastal waters of Lombok Island, namely Kute, Awang, and Gerupuk beaches. The field survey was conducted using the quadratic transect method and free collection in October - November 2020. Based on the results of the research, a total of 11 species of echinoderms were found in Lombok Island consisting of 4 classes. Diadema setosum and Tripneusteus gratila were the most common species, whereas Synapta maculate, Holothuria leucospilota, Echinotrix diadema, Holothuria atra, and Ophiocoma scolopendrina were found in small numbers with uniform distribution (Id <1). Diadema setosum distribution pattern has the highest abundance with a clustered distribution pattern (Id> 1) in Awang and Gerupuk, and Tripneusteus gratila in Kute and Awang. The Diversity Index value is different in each habitat. The highest Shannon-Wiener Diversity Index (Hꞌ) was found in Gerupuk 2.18. The largest smoothing index is found at Awang 0.96. The largest Dominance Index (D) is found in Gerupuk 0.88. Based on the value of the Echinoderm community structure on the South Coast of Lombok Island, it shows that diversity is moderate, community uniformity is unstable, and dominance is low. information regarding the distribution and diversity of Echinoderm fauna in various types of habitats around the seagrass as a first step to anticipate the decline in the Echinoderm population in the waters of the South Coast of Lombok Island.

Weight-length relationships for selected fish species of the small-scale demersal fisheries of the south and south-west coast of Portugal

1997 ◽  
Vol 30 (3) ◽  
pp. 253-256 ◽  
Author(s):  
J.M.S. Gonçalves ◽  
L. Bentes ◽  
P.G. Lino ◽  
J. Ribeiro ◽  
A.V.M. Canário ◽  
...  
Keyword(s):  
Fish Species ◽  
West Coast ◽  
Small Scale ◽  
The South ◽  
South West ◽  
South West Coast

scholarly journals Active, Small-Scale, Periglacial Features on the South Coast of Newfoundland

2007 ◽  
Vol 36 (3) ◽  
pp. 327-329 ◽  
Author(s):  
D. A. Leckie ◽  
S. B. McCann
Keyword(s):  
Snow Cover ◽  
Short Duration ◽  
South Coast ◽  
Small Scale ◽  
High Humidity ◽  
The South ◽  
Patterned Ground ◽  
Freeze Thaw ◽  
Marine Influence ◽  
Marine Climate

ABSTRACT Small-scale, patterned ground is currently forming on the south coast of Newfoundland. Small, sorted circles and stripes form in the vicinity of the coast under the influence of marine climate with numerous, short duration, freeze-thaw cycles, high humidity, abundant rainfall and a thin snow cover throughout the winter, inland, no more than 15 to 25 km from the coast, the marine influence has decreased sufficiently that the patterned ground is no longer forming.

scholarly journals PEMBERDAYAAN PENGOLAH IKAN SKALA RUMAH TANGGA DI PROVINSI JAWA BARAT

2017 ◽  
Vol 12 (2) ◽  
pp. 189
Author(s):  
Yaya Hudaya ◽  
Aida Vitayala Hubeis ◽  
Basita Sugihen ◽  
Anna Fatchiya
Keyword(s):  
South Coast ◽  
North Coast ◽  
Small Scale ◽  
Fish Processing ◽  
The South ◽  
The West ◽  
West Java ◽  
The North ◽  
Significant Difference ◽  
North And South

Pemberdayaan pengolah ikan di Provinsi Jawa Barat dilakukan dengan tujuan untuk meningkatkan kesejahteraan pelaku usaha, menjamin keamanan pangan produk yang dihasilkan, dan ikut menjaga kelestarian sumber daya ikan yang ada. Tujuan penelitian ini adalah untuk menganalisis kinerja pemberdayaan pengolah ikan skala rumah tangga dan dampaknya di Provinsi Jawa Barat. Metode analisis menggunakan uji beda Man Whitney U. Hipotesis penelitian ini adalah ada perbedaan nyata proses pemberdayaan pengolah ikan dan dampaknya di pesisir utara Kabupaten Cirebon dan selatan Kabupaten Sukabumi, Provinsi Jawa Barat. Hasil penelitian menunjukkan tidak ada perbedaan nyata proses pemberdayaan pengolah ikan dan dampaknya baik di pesisir utara Kabupaten Cirebon maupun di pesisir selatan Kabupaten Sukabumi. Kebijakan pemberdayaan pengolahan ikan skala rumah tangga di Provinsi Jawa Barat baik di pesisir utara maupun selatan tidak perlu dibedakan. Namun, intensitas pemberdayaan terutama penyuluhan perikanan, bantuan peralatan dan modal usaha perlu ditingkatkan lagi. Title: The Empowerment of Small Scale Fish Processorsin West Java Province Empowerment of fish processors in West Java Province was carried out in order to improve wellbeing of the fish processors, ensuring food security of the product, and maintaining sustainability of the fish resource. The purpose of this study was to analyze performance of the empowerment of small scale fish processors and its related impact in the West Java Province. The analytical method used different test Man Whitney U. Hypothesis of this research was that there was a significant difference between the process of fish processing empowerment and its related impact in the north coast of Cirebon District and in the south coast of Sukabumi district of West Java Province. The results indicated that there was no significant difference between the process of fish processing empowerment and its impact both in the north coast of Cirebon and in the south coast of Sukabumi. Hence, policy on empowerment small scale fish processing household in both north and south coast districts of West Java Province can be treated the same. However, the intensity of empowerment, especially in terms of fisheries extension, equipment and business capital assistance need to be improved.

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