scholarly journals First record of Pteroplatytrygon violacea (Bonaparte, 1832) with annotation of cartilaginous fishes by-catch by gill nets (Egyptian Mediterranean)

2021 ◽  
Author(s):  
Evelyn Ragheb ◽  
Mohamed Wagih Ahmed Hasan
Keyword(s):  
First Record ◽  
Gill Nets ◽  
Cartilaginous Fishes ◽  
By Catch

scholarly journals The first record of black bullhead Ameiurus melas (Pisces, Ictaluridae) in Serbian waters

2005 ◽  
Vol 57 (4) ◽  
pp. 307-308 ◽  
Author(s):  
G. Cvijanovic ◽  
Mirjana Lenhardt ◽  
Aleksandar Hegedis
Keyword(s):  
Standard Length ◽  
First Record ◽  
Side Channel ◽  
Gill Nets ◽  
Black Bullhead ◽  
Ameiurus Melas

On the 14th of June, 2005, in the Danube side channel "Jojkic" (N 44?50'33.1??, E 20?27'46.1??) near Belgrade, we recorded the presence of A. melas, ranging in weight (W) from 11.2 g to 135.6 g, and standard length (Ls) from 70 mm to 173 mm. Specimens were obtained from professional fishermen, who caught them with gill nets, as well from sport fishermen using fishing roads. Also, on 28th of May, 2005, on the lake "Savsko jezero" (N 44?47'20.1??, E 20?24'54.6??), we collected two specimens with gill nets. They were held in an aquarium until the 20th of June, when they were analyzed. Their weight (W) was 48.8 g and 97.5 g, their standard length (Ls) 145 mm and 183 mm, respectively.

Shark control: experimental fishing with baited drumlines

1998 ◽  
Vol 49 (7) ◽  
pp. 653 ◽  
Author(s):  
S. F. J. Dudley ◽  
R. C. Haestier ◽  
K. R. Cox ◽  
M. Murray
Keyword(s):  
Optimal Solution ◽  
Control Programme ◽  
Shark Species ◽  
Gill Nets ◽  
Carcharhinus Leucas ◽  
Local Reduction ◽  
Shark Attacks ◽  
By Catch ◽  
Catch Rates ◽  
Physical Environmental Factors

Protective gill-nets (shark nets) have been successful in reducing the frequency of shark attacks on the coast of KwaZulu-Natal (KZN), South Africa, since 1952. This is achieved primarily through a local reduction in numbers of large sharks. Yet the nets are non-selective in terms of shark species caught and take a by-catch of dolphins, sea turtles, batoids and teleosts. Baited lines, or drumlines, as used in the Queensland shark control programme, were tested as possible alternatives to gill-nets. They demonstrated greater species selectivity for sharks and also a reduced by-catch of non-shark animals. The shark catch included the three species responsible for most shark attacks on the KZN coast, Carcharhinus leucas, Galeocerdo cuvier and Carcharodon carcharias. The probability of the bait being scavenged, or a shark being caught, was modelled in relation to a number of physical environmental factors. Although there was insufficient variability in the effort data for a quantitative comparison of catch rates between nets and drumlines, the results suggested that an optimal solution may be to deploy a combination of nets and drumlines.

First record of Anachis aliceae (Mollusca: Gastropoda: Columbellidae) in the Algarve, south coast of Portugal

2015 ◽  
Vol 8 ◽  
Author(s):  
Carlos M.L. Afonso ◽  
Kevin Monsecour
Keyword(s):  
Related Species ◽  
First Record ◽  
South Coast ◽  
Marine Gastropod ◽  
By Catch ◽  
First Time

The marine gastropodAnachis aliceae(Pallary, 1900) is reported with certainty for the first time from the Algarve, south coast of Portugal from species-rich rocky priority biotope. Several live specimens of this species belonging to the Columbellidae family were collected and identified from by-catch samples, recovered from octopus traps set at depths between 50 and 70 m off Ponta da Piedade. Taxonomic validation of the newly recorded species is based on the comparison to other related species within the genus.

scholarly journals First record of Enoplometopus callistus (Crustacea: Decapoda: Nephropidae) in the Cape Verde Islands

2003 ◽  
Vol 83 (6) ◽  
pp. 1233-1234 ◽  
Author(s):  
Sonia Elsy Merino ◽  
J. Alistair Lindley
Keyword(s):  
First Record ◽  
Cape Verde ◽  
East Atlantic ◽  
Cape Verde Islands ◽  
By Catch ◽  
First Time ◽  
Existing Data ◽  
Future Reference

Enoplometopus callistus is reported for the first time from the Cape Verde Islands. In January 2001 two specimens were captured in depths of 100–150  m as by-catch in the lobster fisheries. One of them was dissected and kept in alcohol for future reference, the second one was put into an aquarium. The existing data on the distributions of the two Atlantic species of this genus, E. antillensis and E. callistus, indicate that the latter is restricted to the waters of the East Atlantic.

scholarly journals Pisces, Gobiiformes, Gobiidae, Ctenogobius boleosoma (Jordan & Gilbert, 1882): first record for Maranhão state, northeastern Brazil

Check List ◽  
2017 ◽  
Vol 13 (3) ◽  
pp. 2120
Author(s):  
Erick C. Guimarães ◽  
Pâmella S. de Brito ◽  
Felipe P. Ottoni ◽  
Axel M. Katz ◽  
Jorge L. S. Nunes ◽  
...  
Keyword(s):  
Sampling Methods ◽  
Mesh Size ◽  
First Record ◽  
The State ◽  
Northeastern Brazil ◽  
Gill Nets ◽  
Estuarine Region

This study presents Ctenogobius boleosoma from the São Luis estuarine region, the first record from the state of Maranhão, northeastern Brazil. This species may have gone unrecorded from Maranhão due to the difficulties in collecting gobies by the usual sampling methods, such as gill nets, corking nets, and longlines, even when using nets with an appropriate mesh size.

scholarly journals First record of the silver-cheeked toad fish Lagocephalus scleratus (Gmelin, 1789) (Actinopterygii: Tetraodontidae) from Chennai coastal waters, Southeast India

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Krishnan Silambarasan ◽  
Krishnamurthy Sujatha ◽  
Arumugam Sundaramanickam ◽  
Elumalai Rajalakshmi ◽  
Arokia Doss Anitha Joice
Keyword(s):  
Fish Species ◽  
Coastal Waters ◽  
Deep Sea ◽  
First Record ◽  
Meristic Characters ◽  
By Catch ◽  
First Time ◽  
Southeast India

The silver-cheeked toad fish, Lagocephalus scleratus, was recorded for the first time on 25 September 2014. Two specimens of this fish species were collected from the by-catch landed by a commercial deep-sea trawler at Kasimedu Fishing Harbour, Chennai coast, Southeast India. The morphometric and meristic characters of the recorded specimens are described and discussed. The specimen was compared with earlier reports.

First record of the heart urchin Metalia persica (Mortensen, 1940) (Spatangoida: Brissidae) from the Chennai coast, India

Zootaxa ◽  
2019 ◽  
Vol 4624 (2) ◽  
pp. 296-300
Author(s):  
CHAMUNDEESWARI KANAGARAJ ◽  
RICH MOOI ◽  
DEEPAK SAMUEL VIJAY KUMAR ◽  
HRISHIKESH PREMACHANDRAN ◽  
ABHILASH KOTTARATHIL RAJENDRAN ◽  
...  
Keyword(s):  
Bay Of Bengal ◽  
Persian Gulf ◽  
Arabian Gulf ◽  
First Record ◽  
Single Specimen ◽  
The Family ◽  
Indian Waters ◽  
By Catch ◽  
The Persian Gulf ◽  
First Time

The irregular urchin, Metalia persica (Mortensen, 1940), a heart urchin of the family Brissidae, is reported for the first time from the southeastern coast of India. A single specimen was collected from fishing by-catch at Chinna Neelankarai (12º 56’ 29.7” N, 80º 15’ 36.6” E),  Chennai on April 5, 2018. Metalia persica was previously recorded only from the Persian Gulf (Arabian Gulf). This study records Metalia persica for the first time from Indian waters, in the Bay of Bengal, and elucidates features of the anal fasciole. 

scholarly journals Ichthyofauna, Uberabinha River (Upper Paranaíba River Basin), Triangle Mineiro region, Uberlândia, Minas Gerais, Brazil

Check List ◽  
2012 ◽  
Vol 8 (6) ◽  
pp. 1085 ◽  
Author(s):  
Wagner Martins Santana Sampaio ◽  
Frederico Belei ◽  
Patrícia Giongo ◽  
Willian Lopes Silva
Keyword(s):  
Environmental Impacts ◽  
River Basin ◽  
Environmental Degradation ◽  
Fish Community ◽  
First Record ◽  
Minas Gerais ◽  
Hydroelectric Dams ◽  
Human Actions ◽  
Gill Nets

The Uberabinha River is a tributary to the Paranaíba River and, up to now, data about its ichthyofauna was still unknown. Currently the fish community suffers threats due to environmental degradation and the construction of hydroelectric dams. The present study sought to survey the ichthyofauna of the Uberabinha River. Samples were collected in November 2011 and January 2012 using gill nets, cast nets, trawls and sieves. We captured 844 individuals, totaling 36 species of fish. This is the first record of fish from the Uberabinha River and is probably an altered assemblage due to environmental impacts caused by human actions.

scholarly journals ANALISIS HASIL TANGKAPAN RAJUNGAN (PORTUNUS PELAGICUS) SEBAGAI TARGET UTAMA DAN KOMPOSISI BY-CATCH ALAT TANGKAP GILLNET DI PERAIRAN PANTAI PURIRANO, SULAWESI TENGGARA

2019 ◽  
Vol 19 (2) ◽  
pp. 205
Author(s):  
Normayanti Thamrin Mardhan ◽  
La Sara ◽  
Asriyana Asriyana
Keyword(s):  
Small Scale ◽  
Fishing Gear ◽  
Swimming Crab ◽  
Target Species ◽  
Portunus Pelagicus ◽  
Gill Nets ◽  
Male Crab ◽  
The Family ◽  
Main Target ◽  
By Catch

Abstrak : Penangkapan rajungan di perairan Pantai Purirano umumnya dilakukan oleh usaha perikanan rajungan skala kecil, yang menggunakan jaring insang (gillnet). Gillnet merupakan alat tangkap pasif yang pengoperasiannya tidak merusak sumberdaya hayati perairan. Walaupun demikian, gillnet merupakan alat tangkap yang tingkat selektivitasnya rendah, sehingga dikhawatirkan hasil tangkapan sampingan (bycatch) lebih banyak daripada hasil tangkapan utama (target species). Penelitian ini bertujuan untuk mengetahui proporsi hasil tangkapan rajungan (portunus pelagicus) sebagai target utama dan komposisi bycatch alat tangkap gillnet di perairan Pantai Purirano.Sampel rajungan ditangkap menggunakan jaring insang (gillnet) dengan ukuran mata jaring 4 inci & lebar jaring 80 cm. Hasil tangkapan selama penelitian diperoleh 29 jenis dari 25 famili. Hasil tangkapan yang diutamakan adalah rajungan dari famili Portunidae, tetapi terdapat juga jenis-jenis lain yang juga tertangkap (bycatch), yang sebagian dimanfaatkan (useable) dan sebagian lain dibuang ke laut (discarded). Jumlah total hasil tangkapan rajungan jantan selama penelitian adalah 58 ekor (54%) dan betina sebanyak 50 ekor (46%). Indeks dominansi hasil tangkapan tergolong rendah yaitu berkisar 0,21 – 0,27. Hal ini mengindikasikan bahwa selektivitas alat tangkap jaring insang tergolong rendah.Kata Kunci : Rajungan (Portunus pelagicus), Bycatch, Gillnet, PuriranoAbstrack : Catching crabs in Purirano Beach is generally carried out by small-scale crab fishing businesses, which use gillnet.  Gillnet is a passive fishing gear whose operation does not damage aquatic biological resources.  However, gillnet is a fishing tool with a low selectivity level, so it is feared that bycatch by-catch is more than the main catch (target species).  This study aims to determine the proportion of crab catches (portunus pelagicus) as the main target and the composition of gillnet fishing gear bycatch in Purirano Beach waters.  Swimming crab samples were captured using gill nets with mesh sizes of 4 inches & net width of 80 cm.  The catch during the study obtained 29 species from 25 families.  The preferred catch is crabs from the family Portunidae, but there are also other species that are also caught (bycatch), some are used (useable) and some others are thrown into the sea (discarded).  The total number of male crab catches during the study was 58 individuals (54%) and 50 females (46%).  The catch index dominance is relatively low, in the range of 0.21 - 0.27.  This indicates that the selectivity of gill nets is relatively low.Keywords : Rajungan (Portunus pelagicus), Bycatch, Gillnet, Purirano

The endangered Australian sea lion extensively overlaps with and regularly becomes by-catch in demersal shark gill-nets in South Australian shelf waters

2013 ◽  
Vol 157 ◽  
pp. 386-400 ◽  
Author(s):  
D.J. Hamer ◽  
S.D. Goldsworthy ◽  
D.P. Costa ◽  
S.L. Fowler ◽  
B. Page ◽  
...  
Keyword(s):  
Sea Lion ◽  
Gill Nets ◽  
Australian Sea Lion ◽  
By Catch
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