Characterizing north temperate lake littoral fish assemblages: a comparison between distance sampling and minnow traps

2006 ◽  
Vol 63 (3) ◽  
pp. 558-568 ◽  
Author(s):  
Pamela SD MacRae ◽  
Donald A Jackson
Keyword(s):  
Community Structure ◽  
Fish Species ◽  
Fish Community ◽  
Sampling Method ◽  
Distance Sampling ◽  
Line Transect ◽  
Small Fish ◽  
Fish Community Structure ◽  
Temperate Lakes ◽  
North Temperate Lakes

To determine which sampling method may be best employed to monitor changes in fish species composition in littoral areas of small north temperate lakes (≤50 ha), data were collected using distance sampling, based on the line transect method, and a traditional fish sampling method of baited minnow traps. These methods were independently biased in terms of their estimates of species presence and abundance. However, analyses of fish community structure indicated that minnow trap data alone provided a better measure of community structure than did distance sampling data alone. Distance sampling, although a powerful tool in estimating population density, is hindered by a multitude of environmental variables that do not preclude the use of minnow traps. Lakes with clear water containing few species with abundant individuals are best suited for distance sampling. Minnow traps proved to be a fast, efficacious sampling method capable of fairly accurately defining the littoral small-fish community structure in most lakes sampled. These traps are a reliable method for monitoring presence or absence and relative abundance of small-bodied fish species in north temperate lakes. However, the combination of minnow traps and some form of visual sampling will help to ensure that all species are detected in small north temperate lakes.

scholarly journals STRUKTUR KOMUNITAS IKAN DAN TINGKAT TROFIK DI WILAYAH GENANGAN WADUK JATIGEDE PRAINUNDASI, KABUPATEN SUMEDANG-JAWA BARAT

2016 ◽  
Vol 8 (1) ◽  
pp. 29
Author(s):  
Andri Warsa ◽  
Kadarwan Soewardi ◽  
Sigid Hariyadi
Keyword(s):  
Community Structure ◽  
Digestive Tract ◽  
Surface Area ◽  
Fish Species ◽  
Trophic Level ◽  
Food Habits ◽  
Fish Community ◽  
Fish Sample ◽  
Fish Community Structure

<p>Waduk Jatigede dibangun dengan membendung Sungai Cimanuk dan  memiliki luas 4.122 ha serta merupakan waduk multifungsi. Tujuan penelitian ini adalah untuk mengetahui struktur komunitas ikan dan pemanfaatan sumber daya makanan oleh beberapa jenis ikan yang terdapat di DAS Cimanuk wilayah genangan Waduk Jatigede pra inundasi. Penelitian dilakukan setiap bulan pada Februari-Mei 2015 setiap bulan pada minggu pertama. Sampel ikan diperoleh dengan menggunakan jaring insang, jala, dan pancing. Percobaan penangkapan dilakukan di Sungai Cialing (inlet), Genteng, Cimanuk dan Cinambo (outlet). Ikan yang tertangkap dipisahkan berdasarkan jenisnya dan diukur panjang total serta ditimbang bobotnya. Untuk analisis kebiasaan makan kebiasaan makan, saluran pencernaan diambil dan diawetkan dengan formalin 4%. Untuk identifikasi contoh ikan diawetkan dengan formalin 10%. Ikan yang tertangkap selama penelitian sebanyak 11 jenis. Ikan yang dominan adalah lalawak dan genggehek<em>. </em>Rasio biomassa-kelimpahan ikan menujukkan bahwa komunitas ikan di Waduk Jatigede sebelum penggenangan dalam kondisi terganggu. Jenis makanan alami yang dimanfaatkan oleh komunitas ikan di Sungai Cimanuk wilayah genangan Waduk Jatigede adalah detritus, krustase, annelida, insekta, moluska, tumbuhan dan fitoplankton.</p><p><strong> </strong></p><p><em>Jatigede Reservoir  was build with damming of Cimanuk River has about  4.122 ha surface area as wel as multi purpose reservoir. The aim of the research is to known the fish community structure and trophic level by fishes community at Cimanuk River arround Jatigede Reservoir pre inudated. The research was carried out in February-May 2015. Fish sample was obtained by using gillnet, hook and cast net. The experimental fishings were setting at Cialing</em> (<em>inlet</em>), <em>Genteng</em>, <em>Cimanuk and Cinambo</em> (<em>outlet</em>).<em> Fish sample were separated according speciesand was measured of total lenght. To the analisys of food habits, digestive tract was preserved using formalin 4%. For identification, fish sample  was preserved using formalin 10%. About 11 fish species were recorded. Dominan fish catches were Barbonymus balleroides and Mystacoleucus marginatus. According to Abundance-Biomass Comparisson, fish community was under pressure (unstable). Natural feeds observed were detritus, crustacea, annelida, insecta, molusca, plant and phytoplankton. </em></p>

scholarly journals Reef fish community structure in the islands of Paraja Bay, Pandeglang District, Banten, Indonesia

2021 ◽  
Vol 22 (10) ◽  
Author(s):  
MUJIYANTO MUJIYANTO ◽  
YAYUK SUGIANTI ◽  
YUSUF ARIEF AFANDY ◽  
RISNAWATI RAHAYU ◽  
R. ARIEF BUDIKUSUMA ◽  
...  
Keyword(s):  
Community Structure ◽  
Reef Fish ◽  
Fish Species ◽  
Fish Community ◽  
Reef Fishes ◽  
Small Islands ◽  
Fish Community Structure ◽  
Evenness Index ◽  
Reef Fish Community ◽  
Low Diversity

Abstract. Mujiyanto, Sugianti Y, Afandy YA, Rahayu R, Bidikusuma RA, Nasriri AS, Syam AR, Purnaningtyas SE. 2021. Reef fish community structure in the islands of Paraja Bay, Pandeglang District, Banten, Indonesia. Biodiversitas 22: 4402-4413. Paraja Bay waters have five small islands that coexist with Ujung Kulon National Marine Park and act as a buffer zone for the diversity of fishery resources. This study aimed to assess the reef fishes community structure at small islands in Paraja Bay. Observations were made in 20 locations during August and September 2019 in the five small islands. Reef fishes community structure showed 106 species as included major group (54 species), indicator group (24 species) and target group (28 species), among five small islands, i.e. Badul, Mangir, Oar, Sumur and Umang Islands. The highest reef fishes abundance was founded in Umang Island waters. Several target fish species recorded during the study were mature fish (such as those targeted by fishermen). Only a small proportion were juveniles. Reef fish community structure was categorized as stress community to stable community with its indication was low diversity value, high evenness index, and low dominance. The low diversity index value illustrates that the level of uniformity of reef fish species in Paraja Bay waters is high. This condition is evidenced by each coral fish group's evenness index included in the main species group around 0.93 to 0.98. The target species is 0.88 to 0.99.

Influence of Tributary Spatial Position on the Structure of Warmwater Fish Communities

1992 ◽  
Vol 49 (4) ◽  
pp. 671-681 ◽  
Author(s):  
Lewis L. Osborne ◽  
Michael J. Wiley
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Fish Species ◽  
Fish Community ◽  
Fish Communities ◽  
Drainage Area ◽  
Physical Habitat ◽  
Drainage Network ◽  
Fish Community Structure ◽  
Stream Size

We found a significant and positive relationship between fish species richness and four measures of stream size (drainage area, stream order, link magnitude, and downstream link) in three Illinois drainage basins. Downstream link (incorporating both stream size and size of stream at the next downstream confluence) explained the greatest portion of the variance. This suggests that downstream processes significantly influence the structure of fish communities inhabiting warmwater streams. Significantly higher numbers of fish species were collected from tributary streams (< 259 km2 drainage area) located lower in a drainage network and connected to a main channel system than from similarly sized streams located in the headwaters of a drainage network. The difference in species richness among station treatments was not due to a difference in the number of individuals collected among treatments. We were unable to accept or reject the hypothesis that differences in fish species richness were due to differences in physical habitat. The immigration–extinction hypothesis appears to provide a plausible explanation for the observed pattern in fish community structure within a drainage. The location of a stream channel within a network may provide a general template for fish community structure in warmwater drainages by regulating potential species richness.

scholarly journals Marine Fishes of Caño Island Biological Reserve: Reef fish community structure and updated list for the coastal fish.

2016 ◽  
pp. 97-116
Author(s):  
Eva Salas ◽  
Cristina Sánchez-Godínez ◽  
Andrea Montero-Cordero
Keyword(s):  
Community Structure ◽  
Reef Fish ◽  
Fish Species ◽  
Fish Community ◽  
Coral Cover ◽  
Fish Diversity ◽  
Fish Community Structure ◽  
Coastal Fish ◽  
Reef Fish Community ◽  
Biological Reserve

Biogeographically, the Caño Island Biological Reserve (CIBR) is of strategic importance, since it is located in the center of the Panamic Province (Costa Rica and Panama), characterized by a peak in fish species richness within the Tropical Eastern Pacific (TEP). Despite its importance, fish community structure around the island has not been deeply studied, and coastal fish diversity records need to be updated. The aims of the study were: 1) to describe the community structure of the reef fish community of CIBR and 2) to update the list of the coastal fish species recorded until today. For the first objective, 50 stationary fish counts were conducted at 10 locations around Caño Island, in which 79 species, belonging to 32 families, were registered. The most abundant family was Pomacentridae, and the most abundant species was Chromis atrilobata. Planktivorous and carnivorous fish were the most abundant. The existence of a relationship between coral cover and the presence of herbivorous grazers was highlighted within the analysis. Additionally, species composition was compared by site and this revealed that “El Barco” has an abundant presence of snappers. For the second objective, published fish species records were collected for the CIBR and 35 new records were added, for a total of 212 coastal fish species, which represents approximately 17% of coastal fish diversity in the TEP. This work presents a baseline for fish monitoring and mangement measures in this marine protected area.

scholarly journals Changes in Pelagic Fish Community Composition, Abundance, and Biomass along a Productivity Gradient in Subtropical Lakes

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 858
Author(s):  
Jinlei Yu ◽  
Wei Zhen ◽  
Lingyang Kong ◽  
Hu He ◽  
Yongdong Zhang ◽  
...  
Keyword(s):  
Fish Species ◽  
Fish Community ◽  
Yangtze River Basin ◽  
Small Fish ◽  
Fish Community Structure ◽  
Catch Per Unit Effort ◽  
Subtropical Lakes ◽  
Fish Catch ◽  
Total Fish ◽  
The Yangtze River Basin

How fish communities change with eutrophication in temperate lakes is well documented, while only a few studies are available from subtropical lakes. We investigate the fish community structure in 36 lakes located in the Yangtze River basin, covering a wide nutrient gradient. We found that fish species richness and total fish catch per unit effort (CPUE) increased significantly with chlorophyll a (Chla). Among the different feeding types, the proportion of zooplanktivores increased significantly with Chla, while the percentage of omnibenthivores showed no obvious changes; the CPUE of piscivorous Culter spp. increased with Chla, while their proportion of total catch decreased pronouncedly. Based on the index of relative importance (IRI), the most important and dominant fish species was the zooplanktivorous Sijiao (Toxabramis swinhonis), followed by the omniplanktivorous sharpbelly (Hemiculter leucisculus) and the omnibenthivorous crucian carp (Carassius carassius), a small-sized species belonging to the Cyprinidae family. The CPUE of these three species increased significantly with Chla. The focus has, so far, been directed at large fish, but as emphasized by our results, the abundant small fish species were dominant in our subtropical study lakes even in terms of biomass, and, accordingly, we recommend that more attention be paid to the population dynamics of these species in the future.

Fish community structure, habitat complexity, and soundscape characteristics of patch reefs in a tropical, back-reef system

2019 ◽  
Vol 609 ◽  
pp. 33-48 ◽  
Author(s):  
RP Lyon ◽  
DB Eggleston ◽  
DR Bohnenstiehl ◽  
CA Layman ◽  
SW Ricci ◽  
...  
Keyword(s):  
Community Structure ◽  
Habitat Complexity ◽  
Fish Community ◽  
Back Reef ◽  
Fish Community Structure ◽  
Patch Reefs ◽  
Reef System

Dissolved oxygen and temperature best predict deep-sea fish community structure in the Gulf of California with climate change implications

2020 ◽  
Vol 637 ◽  
pp. 159-180
Author(s):  
ND Gallo ◽  
M Beckwith ◽  
CL Wei ◽  
LA Levin ◽  
L Kuhnz ◽  
...  
Keyword(s):  
Climate Change ◽  
Community Structure ◽  
Community Composition ◽  
Environmental Conditions ◽  
Deep Sea ◽  
Gulf Of California ◽  
Fish Community ◽  
Demersal Fish ◽  
Fish Community Structure ◽  
Explained Variance

Natural gradient systems can be used to examine the vulnerability of deep-sea communities to climate change. The Gulf of California presents an ideal system for examining relationships between faunal patterns and environmental conditions of deep-sea communities because deep-sea conditions change from warm and oxygen-rich in the north to cold and severely hypoxic in the south. The Monterey Bay Aquarium Research Institute (MBARI) remotely operated vehicle (ROV) ‘Doc Ricketts’ was used to conduct seafloor video transects at depths of ~200-1400 m in the northern, central, and southern Gulf. The community composition, density, and diversity of demersal fish assemblages were compared to environmental conditions. We tested the hypothesis that climate-relevant variables (temperature, oxygen, and primary production) have more explanatory power than static variables (latitude, depth, and benthic substrate) in explaining variation in fish community structure. Temperature best explained variance in density, while oxygen best explained variance in diversity and community composition. Both density and diversity declined with decreasing oxygen, but diversity declined at a higher oxygen threshold (~7 µmol kg-1). Remarkably, high-density fish communities were observed living under suboxic conditions (<5 µmol kg-1). Using an Earth systems global climate model forced under an RCP8.5 scenario, we found that by 2081-2100, the entire Gulf of California seafloor is expected to experience a mean temperature increase of 1.08 ± 1.07°C and modest deoxygenation. The projected changes in temperature and oxygen are expected to be accompanied by reduced diversity and related changes in deep-sea demersal fish communities.

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